WO2019214701A1 - Dispositif d'application de pression et de moulage de sol modulaire et procédé de traitement de fondation de sol souple - Google Patents

Dispositif d'application de pression et de moulage de sol modulaire et procédé de traitement de fondation de sol souple Download PDF

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Publication number
WO2019214701A1
WO2019214701A1 PCT/CN2019/086347 CN2019086347W WO2019214701A1 WO 2019214701 A1 WO2019214701 A1 WO 2019214701A1 CN 2019086347 W CN2019086347 W CN 2019086347W WO 2019214701 A1 WO2019214701 A1 WO 2019214701A1
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WIPO (PCT)
Prior art keywords
soil
modular
pressure forming
reinforced
forming device
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PCT/CN2019/086347
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English (en)
Chinese (zh)
Inventor
任再永
Original Assignee
杭州永创基建工程科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from CN201810447421.7A external-priority patent/CN108677911A/zh
Priority claimed from CN201811224274.3A external-priority patent/CN109208571A/zh
Priority claimed from CN201811224873.5A external-priority patent/CN109403305A/zh
Priority claimed from CN201811224888.1A external-priority patent/CN109403307A/zh
Priority claimed from CN201811224298.9A external-priority patent/CN109208572A/zh
Priority claimed from CN201811224254.6A external-priority patent/CN109440756A/zh
Application filed by 杭州永创基建工程科技股份有限公司 filed Critical 杭州永创基建工程科技股份有限公司
Priority to CN201980004637.9A priority Critical patent/CN111315932A/zh
Publication of WO2019214701A1 publication Critical patent/WO2019214701A1/fr

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
    • E02D3/054—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil involving penetration of the soil, e.g. vibroflotation
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/08—Improving by compacting by inserting stones or lost bodies, e.g. compaction piles
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains

Definitions

  • the invention relates to the field of foundation reinforcement treatment, in particular to the field of reinforcement treatment of soft soil foundation, in particular to a modular soil pressure forming device and a soft soil foundation treatment method using the same.
  • Soft soil includes silt, silty clay, silty silt, silt sludge, river silt, peat, peat soil, surface rare earth, floating soil, etc. It is a natural water content, high compressibility, and natural porosity ratio is greater than Equal to 1, fine-grained soil with low shear strength.
  • Commonly used drainage consolidation methods mainly include preloading method and vacuum combined preloading method. The preloading method is to install a drainage channel and a vertical drainage system in the foundation to reduce the consolidation drainage span of the soil, and the foundation is drained and consolidated under the load of the embankment to increase the bearing capacity of the foundation and reduce the settlement after construction. .
  • the vacuum combined with the preloading method is based on the preloading method of the pile, forming a gas-impermeable layer on the load, continuously pumping water through a constant time to form a negative pressure zone in the foundation, thereby solidifying the soft clay drainage.
  • the purpose of improving the bearing capacity and reducing the settlement is achieved.
  • the above-mentioned drainage consolidation method has a long construction period and is generally completed in six months to one year, so the construction cost is high and the efficiency is very low.
  • the above-described drainage consolidation method is only suitable for large-area construction. Moreover, since the height of the load is limited, it is not applicable to the case where the earth load is high.
  • the present invention is to solve the above technical problems existing in the prior art, and aims to provide a modular soil pressure forming device and a soft soil foundation processing method.
  • a modular soil pressure forming device including a top frame, a pressure forming module and a soil strength detecting device, wherein the pressure forming module includes one or more The protrusion, the top of the module is connected to the top frame.
  • the modular soil pressure forming device of the invention is suitable for the reinforcement treatment of shallow or medium shallow soft soil foundation.
  • the device is placed on the soil to be treated, and the weight of the device itself exerts pressure on the soil, and the moisture and air in the soil are squeezed out, so that the solidity between the solid particles in the soil is improved.
  • the convex body at the bottom of the pressure forming module blocks the soil, prevents the lateral movement of the soil, and the soil is concentrated in the space between the convex bodies, and is fully squeezed to quickly drain and compact. The effect greatly improves the construction efficiency, reduces the construction period and reduces the construction cost.
  • the invention is not only suitable for large-area overall construction, but also suitable for small-area partial construction. Different sizes of devices can be designed depending on the size of the construction area. For large-area soil reinforcement, local construction can also be used to construct the sub-region. Each area can be constructed one by one, or multiple units can be used in each area at the same time.
  • the shape, size and number of the protrusions are not limited and may be determined according to design requirements.
  • the structure of each protrusion may be the same or different.
  • the protrusions are arranged in a continuous arrangement or a gap, and the top is connected to the top frame directly or through a connecting plate.
  • the convex body is provided with one or more "V" shaped members; it is convenient for quick insertion into the soil, and the construction efficiency can be improved.
  • the solid portion of the "V" shaped member is a wedge structure having an upper width and a lower width, wherein the empty portion is a receiving groove having a large upper and a lower.
  • the wedge-shaped structure facilitates rapid insertion into the soil, which can improve the construction efficiency; the upper and lower large receiving grooves can effectively increase the soil holding capacity, facilitate the further insertion of the wedge-shaped structure into the deep soil, and can effectively prevent the lateral movement of the soil.
  • the projections are arranged in an array.
  • the protrusions are arranged in a row or columns or a plurality of rows, and each protrusion penetrates the pressure forming module in one direction. That is, a plurality of convex bodies are arranged in parallel or in parallel.
  • the protrusions are arranged in an array of rows and columns, and the protrusions of adjacent rows/columns are arranged side by side or staggered.
  • the water that is squeezed out of the soil needs to be discharged through the drainage channel.
  • One type of drainage is to insert a vertical drainage plate into the soil to be treated in advance, and drain the water by using a drainage channel in the drainage plate.
  • Another preferred mode is to provide a filtering device on the portion of the pressure-molding module that contacts the soil portion, and the water squeezed from the soil body is discharged from the filtering device.
  • the filter device can be of any standard construction.
  • the filtering device comprises a multi-layer filter. More preferably, the screen is a metal screen. Metal screens are high strength and reusable.
  • the filter holes of the screens of the respective layers may be the same or different. From the perspective of the filtration itself, the pore size of the outer filter should be larger than the pore size of the inner filter, so that the solid soil particles are subjected to coarse filtration and fine filtration in sequence.
  • the pore diameter of the outer filter can also be It should be smaller than the pore size of the inner screen.
  • the upper portion of the filtering device can directly communicate with the inside of the top frame.
  • a water collecting chamber may be provided inside the bracket, and the water is discharged through the pumping pipeline.
  • a water collecting chamber is formed on the upper surface of the pressure forming module, and the upper portion of the filtering device communicates with the water collecting chamber through the top frame.
  • the bottom outermost layer of the pressure forming module is further provided with a reinforced body.
  • the reinforcing body is disposed on the outer layer of the filtering device.
  • the reinforced body may be any one or a combination of a geogrid, a geotextile, a geomembrane, a geocell, a geotextile mat, and a composite geotextile.
  • the high-strength, high-toughness and other mechanical properties of geosynthetic materials are used to diffuse the stress in the soil, increase the tensile strength of the soil, improve the soil, constitute the reinforced soil and various composite geotechnical structures. Geosynthetics also act as a filter, drainage and insulation material.
  • the press-molding module may be a solid structure to increase the weight of the entire device.
  • the pressure forming module is welded from a steel plate or a section steel, and a water collecting chamber is formed on the upper portion.
  • the pressure forming module is provided with a water guiding channel connecting the bottom surface of the module and the water collecting chamber. The water discharged from the soil enters the water collecting chamber through the water guiding channel on the module, and is discharged through the pipeline.
  • the drainage method can be natural drainage, or it can be forced to drain by using a water pump or a vacuum pump.
  • a gas-water separator is placed at the front end of the vacuum pump to prevent moisture from entering the vacuum pump with the airflow, resulting in degraded or damaged vacuum pump performance.
  • two-way vacuuming is adopted. After the gas-water separator is operated for a period of time, when the separated water volume reaches the set water level, one vacuum pump stops working, the gas-water separator performs drainage, and the other road remains in operation. The two roads work alternately, and the drainage is sustainable.
  • the top frame adopts a closed structure, such as a top plate and a bottom frame structure, the bottom frame is closed around, and the upper portion is connected with the top plate, so that the water collecting chamber at the upper portion of each convex body Interconnected into a large closed vacuum collection chamber, which creates a negative pressure during pumping, which is beneficial to soil drainage.
  • the vacuum water collecting chamber is further provided with a vacuum negative pressure regulating tube with a control valve.
  • the vacuum negative pressure regulating tube is used for adjusting the negative pressure in the vacuum collecting chamber, so that the vacuum pressure in the vacuum collecting chamber, the gas water separator and the vacuum pump form a vacuum gradient.
  • the vacuum negative pressure regulating tube may be disposed above, in the middle or at the bottom of the vacuum collecting chamber.
  • the top frame also assists the pressure applying device.
  • the auxiliary pressure applying device applies dynamic low frequency, medium frequency or high frequency force to the soil through the pressure forming module, so that the soil body is fully squeezed to accelerate the separation of the water gas and the soil particles in the soil body.
  • the auxiliary pressure applying device includes a vibration device, an impact device, and/or a hammer device, and is disposed on the top frame and/or the pressure forming module.
  • the auxiliary pressure applying device is uniformly disposed on the top frame and/or the pressure forming module in the same layer or layer.
  • the periphery of the top frame is further provided with a baffle.
  • the baffle acts as a barrier to the soil, preventing lateral displacement of the soil, so that the soil is concentrated in the area of the pressure forming module, thereby obtaining more sufficient extrusion and further accelerating the water in the soil. Gas is separated from soil particles.
  • the baffle may be enclosed and enclosed around the periphery of the top frame.
  • the baffle may also be a plurality of baffles uniformly disposed at the periphery of the top frame.
  • the baffle may be disposed only below the top frame.
  • the height may be substantially the same as the height of the pressure-molded module, or may be higher or lower than the height of the pressure-molded module.
  • the baffle may also extend upward from the lower side of the top frame to above the top frame to protect the equipment disposed on the top frame from sludge.
  • the inner wall of the baffle has a water permeable layer to facilitate rapid drainage.
  • the bottom of the pressure forming module is further provided with a vertical pile body.
  • the vertical pile body forms a pile hole in the soil body, and after lifting the modular soil body pressure forming device, the finished pile pipe or the filling filler is placed in the pile hole.
  • the pressure forming module performs lateral shallow or medium-shallow treatment on the soil, and the vertical pile body deep-strengthens the soil, so it is not only suitable for drainage reinforcement treatment of shallow or medium-shallow soft soil foundation. At the same time, it can also be applied to the treatment of deep foundations, so that the application of the present invention is more extensive.
  • the vertical pile body is a large and small pyramid structure, which is convenient for pressing in and out.
  • the vertical pile body may be a pile tube structure or a solid body.
  • the soil strength detecting device is one or more, and is disposed on the pressure forming module and/or the vertical pile.
  • a plurality of soil strength detecting devices are evenly distributed on the bottom, middle and upper portions of the convex body and/or the vertical pile body of the pressure forming module to comprehensively detect the soil strength at various positions of the soil to be constructed.
  • the soil strength detecting device includes a soil density detecting device and/or a soil shear strength detecting device.
  • the plurality of convex bodies are assembled into a row-arranged structure, and the height of the intermediate convex body is greater than the height of the other convex bodies; each convex body is composed of two or more "V" shapes having substantially the same structure.
  • the components are stacked, the ends of the parallel protrusions and the ends of the intermediate protrusions exposing the adjacent protrusions are blocked by the end plates, and a “T”-shaped guide bar is arranged between the adjacent “V”-shaped members. A gap is left between the "T" shaped bar and the "V" shaped member to form a chute that is inserted into the filtering device.
  • the convex body adopts a row structure, which can locally apply pressure to the soil.
  • the "V” shaped members can be manufactured independently, which not only reduces manufacturing difficulty and manufacturing cost, but also can be flexibly assembled according to design requirements.
  • the small "C” convex body has a small sharp angle, which is convenient for quick insertion into the soil, can improve construction efficiency, and can increase the contact area with the soil, thereby better preventing the lateral movement of the soil.
  • the "V" shaped member of the present invention has the following beneficial effects:
  • the invention adopts a built-in pressure-squeezing module with a water-steaming function and a “V”-shaped structure, and produces a compression squeeze under the continuous pressure of 150-300 tons of high-power electric vibrating hammer or hydraulic vibrating hammer.
  • the water vapor pressure is densely discharged, the water vapor pressure resistance in the pressed soil is dissipated, the compression modulus is increased, the water vapor content is reduced, the foundation bearing capacity and shear strength are improved, the post-construction settlement is reduced, and the soil stability is maintained.
  • a "V"-shaped open-type hollow core mold body is formed, and after filling various kinds of bulk materials or bonding modified mixed materials, a high-strength module pile body is formed in the foundation and anchored in A stable effect can be achieved in the soil body, and the composite material can be planarly composited into a whole structure by using a plurality of modular piles, which effectively solves the problem of preventing and controlling the uneven settlement of the foundation and the lateral outward displacement instability. .
  • the invention adopts the "V" shape structure and the pressure forming module, can simultaneously reach the maximum pressure receiving area, volume and depth, and has the best soil compacting enhancement effect and construction efficiency; one station can be processed at one time 6 ⁇ 13 cubic meters of soil compaction forming and backfilling displacement, high construction efficiency and high speed, achieving mechanized high-efficiency construction and precise quality control system.
  • the construction period is shortened and the construction cost is relatively Declined.
  • the soil body forms a "V"-shaped open-type hollow core mold body, and the mechanical operation can quickly backfill various kinds of bulk materials or bond modified mixed materials at one time, which can achieve the best construction efficiency;
  • the bearing strength and quality grade after the foundation reinforcement treatment it is possible to use a single material or a plurality of mixed materials or a plurality of layered combinations to backfill any number of materials, and the material grading and quality requirements for the materials used are wide, and in particular, a large number of materials can be selected.
  • the construction waste recycling resources are used for deep landfill, and these conditions can reduce the project cost and environmental protection and energy conservation.
  • the soil body forms a "V"-shaped open-type hollow core mold body
  • the modified mixed material is selected by chemically solidified soil or cement concrete, and can be mixed directly on the ground and then directly poured.
  • the backfilling it is also easy to place various geosynthetic materials between the pit mud surface and the backfill material for the use of prefabricated components for drainage, isolation, reinforcement, etc., and can be placed directly in the backfill material.
  • Reinforced cages and other reinforced reinforcement connecting members effectively solve the influence of key technical problems such as mixing, proportioning, groundwater, perfusion compactness and steel frame component placement in the construction process using bonded modified mixed materials.
  • the soil body forms a "V"-shaped open-type hollow core mold body, which can quickly place and install the conditions of the cement precast concrete member, and can realize hollow, high-strength reinforcement, multi-layer composite and chemical bonding. And foaming and other technical means to produce high-performance multi-functional precast concrete structural parts, which can realize the major innovative technology of implementing assembled buildings and lightweight foundation structures in foundation treatment.
  • the invention is based on the traditional principle of composite foundation reinforcement, and combines various techniques such as mechanical compaction, material improvement, displacement volume, ecological environment protection, high-efficiency construction and precise quality control, and a high-quality synthetic composite foundation treatment method. Its biggest feature is that it has changed the traditional column-shaped and pier-shaped reinforcement body to form a "V"-shaped innovative structure that best matches the deformation characteristics of the foundation. It is formed by high-efficiency mechanical extrusion method to meet the comprehensive use of different foundations. Claim. It is precisely because of the above characteristics that the present invention presents two distinct advantages. First, the wide range of reinforcement foundations is applied, covering from soft muddy soil to various complicated landfill foundations, and secondly, the types of reinforcement works are applicable. Wide, from the traditional housing construction, roads, railways, airports, dams and other civil engineering to high-speed rail, oil and gas pipelines, communications power facilities, wind power solar facilities and other new and special construction engineering fields.
  • the filter device is inserted through the chute, and can be easily removed after use, and the sludge on the filter is cleaned and then inserted into the chute for re-use.
  • the surface and/or the back surface of the filtering device is further provided with a baffle or a guiding groove.
  • the baffle or the diversion trough is better guided to the filtering device after the soil is discharged from the pores of the soil by the lighter water gas generated during the pressing process.
  • the modular soil pressure forming device of the invention can be integrally manufactured or can be fabricated by unit splicing, that is, a top frame and a pressure forming module connected thereto form a unit, and two or more units are spliced to form a unit.
  • unit splicing that is, a top frame and a pressure forming module connected thereto form a unit, and two or more units are spliced to form a unit.
  • Different features can be added to each unit as needed. With the unit splicing method, since each unit has a small volume, the manufacturing is simpler, and the manufacturing difficulty and the manufacturing cost can be reduced.
  • the unit can be used as a standard size, or as a series of products, each unit has the same unit structure and size, and then spliced according to design or construction requirements, and is more flexible in design and use.
  • the invention also provides a method for treating a soft soil foundation, which uses the above-mentioned modular soil pressure forming device to extrude, drain and form the soil.
  • the present invention also provides another method for treating a soft soil foundation, comprising the steps of: 1) driving a vertical drainage plate into the soil; 2) performing the soil body by using the modular soil pressure forming device. Extrusion, drainage and forming.
  • the invention also provides another method for treating a soft soil foundation, comprising the steps of: laying a transverse reinforcement body on the soil body, and then using the above-mentioned modular soil body pressure forming device to squeeze, drain and forming.
  • the present invention also provides another method for treating a soft soil foundation, comprising the steps of: 1) driving a vertical drainage plate into the soil; 2) laying a lateral reinforcement on the soil; 3) using the The modular soil pressure forming device presses, drains and forms the soil.
  • the bottom of the soil pressure forming device may be provided with a reinforced body, and the reinforced body remains on the soil body after the soil pressure forming device completes the operation. It is also possible to place a reinforced body adapted to the shape of the soil on the surface of the formed soil after the soil pressure forming device has completed the work. After the work is completed, the finished pile pipe or the filled pipe bag is placed in the extruded pit, or the filler is filled, or the concrete is poured.
  • the tube bag may be impervious to water, and may be filled with domestic garbage, industrial garbage or construction waste.
  • the tube bag is a geotube bag.
  • the geotechnical tube bag is a bag made of geotechnical material, which has the function of filtering and permeable, also called geomembrane. Fill the geomembrane bag with filler and tie it tightly with a rope.
  • the filler is a bulk material having a water filtering function, such as gravel, sand, fly ash, slag, and the like.
  • a pipe joint is provided on the bag body.
  • the geomembrane bag filled with the filler is placed in the pit, the water pipe is connected to the pipe joint, and then the filtered water is extracted by a water pump.
  • Geotextile bags placed on the surface of the soil also have a reinforcing effect.
  • the above treatment method is particularly suitable for dredging of river courses and reinforcement of riverbeds.
  • the invention also provides a method for treating a tumbling soft soil foundation, which comprises the following steps: 1) extruding, draining and forming a soil body by using the modular soil pressure forming device; 2) Excavate the extruded soil layer; 3) Repeat steps 1) and 2) until the set excavation depth is reached.
  • the final process may be to excavate the extruded soil layer, or to perform the final extrusion, drainage and molding on the soil body.
  • the method further comprises the following steps: 4) placing the finished pile pipe or filling the geotextile bag in the excavated pit or in the extruded pit (depending on the final process), or filling the filler, or pouring Concrete.
  • the treatment method of tumbling soft soil foundation is especially suitable for the treatment of soft soil foundation with high water content.
  • the soft soil foundation of this nature is treated by the soil replacement cushion method, the soft soil is difficult to excavate and transport.
  • the soft soil of the surface layer can be treated first, and the soft soil of the layer is consolidated after reaching a certain strength; then the soft soil is treated layer by layer until the excavation depth The set value is reached.
  • the filler for backfilling includes but is not limited to the following categories:
  • Construction waste such as various types of buildings, structures, pipe networks, etc., shall be constructed, laid or demolished, and the muck, spoil, waste and other waste generated during the repair process; while improving the carrying capacity of the foundation, It can also make comprehensive use of urban garbage, turning it into waste and not causing secondary pollution.
  • the invention also provides a mixed reinforced compacting method, characterized in that the method comprises the following steps: 1) adding a reinforced body to the surface of the soil; 2) using the modular soil pressing forming device to carry out the soil body Extrusion, drainage and forming; 3) Place finished pile pipes or geofilled pipe bags filled with fillers in extruded pits, or fill fillers or cast concrete.
  • the reinforced body is first added at the beginning of the construction, and the reinforced body and the soil body are mixed and compacted to form a pad during the extrusion process of the soil by the modular soil pressure forming device.
  • the layer improves the water stability of the soil foundation and acts as a water barrier and drainage.
  • the reinforced body comprises a reinforced material or a reinforced tube bag encasing a reinforced material.
  • the reinforced body comprises a reinforced material and a reinforced tube bag encasing the reinforced material.
  • the reinforced material and the reinforced tube bag encapsulating the reinforced material may be mixed at the same time or alternately layered.
  • the tubular body of the reinforced tube bag may be made of a water permeable material such as a geotextile. After the completion of the construction, the reinforced body is left in the foundation to continue to filter the water, thereby purifying the water. This advantage is particularly evident when applied to river treatment.
  • the tube body of the reinforced tube bag may also be made of a water-impermeable material.
  • the pipe bag can be filled with construction waste or other municipal solid waste. While improving the bearing capacity of the foundation, the city garbage can be comprehensively utilized, turning waste into treasure, and no secondary pollution occurs. Therefore, the present invention has a pole. High economic and social benefits.
  • the invention also provides a baffle-type channel dredging construction method, which comprises the following steps: 1) placing the modular soil pressure forming device into a construction area in a river channel, the baffle The height from the top frame is greater than the depth of the river; 2) the water in the construction area is drained; and 3) the modular soil pressure forming device squeezes, drains and forms the soil at the bottom of the river bed. . After completing the riverbed reinforcement treatment in this area, the soil pressure forming device is hoisted to the next outer construction area, and steps 1) to 3) are repeated until all the areas are processed.
  • a plastic mesh in which aquatic plants are implanted is placed at the bottom of the river bed after the treatment is completed.
  • the plastic mesh is secured to the bottom of the river bed by weights or spikes.
  • step 4) is further performed: filling the extruded pit with a bulk material having a filtering function, or pouring a layer of concrete, or stacking a filled body
  • a geotechnical tube bag of filler the geotechnical tube bag adopting a geotechnical material having water permeability.
  • a plastic mesh implanted with aquatic plants is placed at the bottom of the river bed after the treatment is completed.
  • a long-time pumping circulation pipe and a pumping power device are provided; and a pipe filter is provided in the pumping circulation pipe for cleaning the water quality and discharging the sludge from time to time.
  • the pipe filter has a replaceable pipe filter.
  • the invention also provides another baffle-type channel dredging construction method, which comprises the following steps: 1) driving a baffle in the construction area of the river channel to break the river water; 2) pumping water in the construction area 3) Lifting the modular soil pressure forming device into the construction area, extruding, draining and forming the soil at the bottom of the riverbed; 4) stacking and filling the filter with the filtering function in the extruded pit Body material, or cast a layer of concrete, or geomembrane bag filled with loose packing; 5) Lift the modular soil pressure forming device to the next construction area, repeat steps 1)-5) until all construction areas Processing is complete.
  • step 4 a plastic mesh implanted with aquatic plants is placed at the bottom of the river bed after the treatment is completed.
  • step 4) is replaced with a plastic mesh in which the aquatic plants are placed at the bottom of the river bed after the treatment is completed.
  • the steps 4) and 5) can be interchanged, that is, after the soil of all construction areas is pressed, drained and formed, and then uniformly stacked in the extruded pits with filtration.
  • Functional bulk material or cast a layer of concrete, or a geotextile bag filled with loose packing.
  • the utility model relates to a baffle-type river channel dredging construction method, which is characterized in that the soil at the bottom of the river bed is firstly squeezed and solidified, then filled with a bulk material or a geotube bag for circulating water filtration, and the cycle is The water filtration continues after the construction is completed, keeping the water in the river clean.
  • the bulk material may be a material having good water filtering properties such as sand, sand, and slag. This construction method is especially suitable for the still water channel.
  • the bottom of the river bed can be cleaned and hardened by pouring concrete.
  • the invention also provides a construction method of a river pond dam, which comprises the following steps: 1) driving a baffle in a construction area in a river channel to interrupt the river water; 2) draining the water in the construction area; Constructing a dam; 4) hoisting the modular soil pressure forming device into the construction area, extruding, draining and forming the soil at the bottom of the riverbed; 5) filling the extruded pit with Filter the bulk material, or cast a layer of concrete, or stack geofilled bags filled with loose packing; 6) Repeat steps 1)-5) in the next construction area until all construction areas have been processed.
  • step 4) can be constructed in sequence or reordered as appropriate.
  • the steps 3) and 4) can be carried out in a time-sharing manner or simultaneously.
  • step 4) may adopt a tumbling soft soil foundation treatment method, that is, after extruding, draining and forming the soil, excavating the extruded soil layer, and then continuing The soil is pressed, drained and formed by a modular soil pressure forming device; this cycle is continued until the set excavation depth is reached.
  • the excavated soil can be directly used to construct the dam, used on the spot, without transportation, which can reduce construction cost and improve construction efficiency.
  • a plastic mesh in which aquatic plants are implanted is placed at the bottom of the river bed after the treatment is completed.
  • the dam is provided with a road surface for a motor vehicle, a green road for non-motor vehicles, and a hydrophilic walking path for pedestrians.
  • step 3 is to fill the embankment, and the following steps are included:
  • the modular soil pressure forming device squeezes, drains and forms the soil to improve the compactness of the soil and thereby increase the strength of the dam. Pouring concrete into the extruded pockets prevents the dam from forming a gap and prevents piping. It is also possible to backfill the filler in the extruded pocket.
  • steps 3.2) and 3.3) are repeated such that the dam has two layers of reinforcement to further increase the overall strength of the dam.
  • the extruded pits are filled with a bulk material having a filtering function, and each of the pits is further provided with a circulating water pipe, and the circulating water pipe is connected with the pipeline filter of the peripheral device. And form a circulation filter circuit.
  • the pipe filter has a replaceable pipe filter. After the construction is completed, the pipeline filter continuously filters the water to keep the water clean.
  • the construction method of a river pond dam of the invention can be applied to the construction of rivers, lakes, ponds, fish ponds and the like.
  • the invention also provides a prefabricated module pressure pile composite foundation structure treatment method, which adopts a modular soil pressure forming device to extrude, drain and form the soil; the original soil base or the modified treatment Perform the following steps on the foundation:
  • the prefabricated module bearing pile composite foundation structure processing method of the invention is suitable for the reinforcement treatment of shallow or medium and shallow soft soil foundation.
  • the modular soil pressure forming device is placed on the soil, and the weight of the device itself exerts pressure on the soil, and the moisture and air in the soil are squeezed out, so that the solidity between the solid particles in the soil can be obtained. improve.
  • the convex body at the bottom of the pressure forming module blocks the soil, prevents the lateral movement of the soil, and the soil is concentrated in the space between the convex bodies, and is fully squeezed to quickly drain and compact. The effect greatly improves the construction efficiency, reduces the construction period and reduces the construction cost.
  • the concrete refers to a collective name of an engineering composite material in which a cement material is cemented into a whole by a cementitious material. According to the different gelling materials, it can be divided into:
  • cement concrete is also called ordinary concrete
  • cement is used as cementing material, sand and stone as aggregate; and water (may contain admixture and admixture) is matched in a certain proportion and obtained by stirring. It is widely used in foundation. Treatment and civil engineering.
  • the filtering device has the functions of soil separation, water seepage, drainage, exhaust and suction.
  • the box-type stiffening member is an integral member or a splicing member made of steel, wood, bamboo, bamboo-wood composite material, stone or plastic plate.
  • the modified treated soil can be treated by any known method such as displacement, compaction, drainage, cementation, reinforcement and thermal.
  • the foundation soil is reinforced by modification treatment to improve the characteristics of the foundation soil.
  • An optimized method for modifying a foundation according to the following steps: first laying at least one layer of bulk material, and/or geo-reinforced material, and/or modified soil on the undisturbed soil; then compacting or shaping Compaction.
  • the curing agent includes, but is not limited to, a lime cement inorganic curing agent, a slag dry powder soil curing agent, a high cluster ionized soil curing agent, an organic enzyme protein soil curing agent, and an organic-inorganic combined curing agent.
  • the geotechnical reinforcement material may be any one of a plastic drainage board, a reinforced belt, a geogrid, a geotextile, a geomembrane, a geocell, a geogrid mat, and a composite geotechnical material, or a combination of two or more .
  • the concrete sandwich is laid in a pouring manner.
  • the invention relates to a mechanical pressure compaction drainage consolidation soil combined soil modification treatment method, which is suitable for reinforcement of shallow or medium shallow soft soil foundation, especially suitable for silt, floating mud, quicksand soil, blow sand backfilling Drainage consolidation treatment of soft soil with high water content such as soil, river pond, lake, dam, sludge pool and mixed pool.
  • the modular soil pressure forming device is placed on the soil body after adding the curing agent, and the weight of the device itself exerts pressure on the soil body, and the water and air in the soil body are squeezed out, so that the solid particles in the soil body are The density between the two is improved.
  • the curing agent and the soil form a mutual interweaving and mixing to form a composite solidified soil, so that the soil body can achieve the effects of modification, solidification and reinforcement, and realize the reinforcement of the engineering soft soil.
  • the modified soil can also be laid as follows: the undisturbed soil is paved flat, and the curing agent is spread thereon, and finally mixed by a road mixer.
  • an adhesive layer is further provided between adjacent laying layers.
  • the bonding material used for the bonding layer is cement, modified soil or cement concrete.
  • the bonding material is in any form of dry powder, dry granular, wet semi-solidified or wet fluid after mixing and stirring.
  • the type of bonding material and the shape after processing are determined according to the characteristics of the material to be laminated, so that it can be better mixed, bonded and compounded, and is easy to apply.
  • the dry powder can be applied directly to all of the underlying materials.
  • the composite soil is shaped and compacted to increase the compactness and curing adhesive strength of the backfilled filler.
  • the shaping is usually static pressure.
  • the compaction includes power rolling, dynamic push rod compaction, heavy object impact compaction, vibration slamming and other dynamic modes.
  • the modular soil body pressing forming device forms a mutual interweaving and mixing between the laid bulk material and the soil during the pressing process, thereby achieving soil mixing modification and reinforcement.
  • the bulk material includes, but is not limited to, any one or a combination of materials of clay, sand aggregate, mixed broken construction waste or hard stone.
  • the aggregate of sand and gravel is a general term for sand, egg (gravel) stone, gravel, stone, stone and other materials in water conservancy projects.
  • the geotechnical reinforcement material may be any one of a plastic drainage board, a reinforced belt, a geogrid, a geotextile, a geomembrane, a geocell, a geogrid mat, and a composite geotechnical material, or a combination of two or more . Adding geotechnical reinforcement can increase the stability of the soil and improve the bearing capacity of the soil.
  • the geotechnical reinforced material is made of flexible material (such as geotextile, geomembrane, reinforced belt, etc.), it can be directly laid on the soil. After the flexible material is extruded, it is interwoven with the soil and deformed to form a convex body. Corresponding composite shaped soil.
  • the geotechnical reinforcement materials When geotechnical reinforcement materials are made of hard materials (such as plastic drainage boards, geocells, geogrid mats, and composite geotechnical materials, etc.), the geotechnical reinforcement materials can be placed in the following manner: (1) Reinforce the geotechnical The material is cut into a sheet-like structure, each material corresponding to one surface of the convex body, the sheet material is formed or inserted into the soil at the corresponding position; (2) the geo-reinforced material is formed into a phase with the convex body The adapted component is placed in the construction position; (3) the geo-reinforced material is made into a member adapted to the convex body, and a frame of the same material or different materials is added around the frame, and the frame member is placed on the frame member. Construction location.
  • the general construction method and pile shape are basically the same.
  • the relationship between the frictional resistance and the softness and hardness of the soil is greatly affected by the cylindrical and long strip pile structure.
  • the use of the pile is large, and the settlement value after work is difficult to eliminate.
  • the invention can adapt to different soils with different degrees of hardness and hardness, and the effect of compacting and exchanging water and gas on the soil at the same time produces the compaction effect, and improves the compactness and bearing strength of the soil, completely utilizing the soil strength after the undisturbed soil is improved as the foundation.
  • the invention relates to a modular soil pressure forming device and a soft soil foundation processing method, which can be applied to foundation reinforcement processing in various infrastructure fields, including:
  • Marine areas such as land reclamation, dikes, damming;
  • Subgrade area such as road and railway embankment treatment
  • Water conservancy such as rivers, river banks, riverbeds;
  • Waste treatment areas such as landfills, sludge pools;
  • Municipal construction areas such as municipal roads, and other municipal works
  • Construction and construction areas such as buildings, structures.
  • the present invention has the following beneficial effects:
  • the modular soil pressure forming device of the invention is suitable for the reinforcement treatment of shallow or medium shallow soft soil foundation.
  • the device is placed on the soil to be treated, and the weight of the device itself exerts pressure on the soil, and the moisture and air in the soil are squeezed out, so that the solidity between the solid particles in the soil is improved.
  • the convex body at the bottom of the pressure forming module blocks the soil, prevents the lateral movement of the soil, and the soil is concentrated in the space between the convex bodies, and is fully squeezed to quickly drain and compact. The effect greatly improves the construction efficiency, reduces the construction period and reduces the construction cost.
  • FIG. 1 is a schematic view showing the structure of a modular soil pressing device of the present invention.
  • Fig. 8 is a structural schematic view showing an embodiment in which the convex body of the modular soil pressing device of the present invention is arranged side by side.
  • Fig. 9 is a schematic view showing the structure of a convex body staggered arrangement of the modular soil pressing device of the present invention.
  • Figure 15 is a schematic view showing the structure of a modular soil pressing device of the present invention using a plurality of identical and different unit splicing embodiments.
  • Fig. 17 is a structural schematic view showing the embodiment in which the impact hammer and the vibrating device of the modular soil body pressing forming device of the present invention are disposed in the same layer.
  • Fig. 18 is a structural schematic view showing an embodiment in which a closed baffle is added to the modular soil pressure forming device of the present invention.
  • Fig. 19 is a structural schematic view showing the embodiment of the modular soil pressing device of the present invention extending from below the top frame to above the top frame.
  • Fig. 20 is a structural schematic view showing the embodiment of the modular soil body pressing forming device of the present invention under the top frame.
  • Fig. 21 is a structural schematic view showing an embodiment of a closed baffle made of a steel in the modular soil pressure forming device of the present invention.
  • Fig. 22 is a structural schematic view showing an embodiment of a gap type baffle plate made of "gong" steel in the modular soil pressure forming device of the present invention.
  • Fig. 23 is a structural schematic view showing an embodiment in which a vertical pile body is added to the modular soil pressure forming device of the present invention.
  • Fig. 24 is a structural schematic view showing an embodiment of a gap type baffle plate made of "gong" steel in the modular soil pressure forming device of the present invention.
  • 25-30 are schematic views showing the construction process of a method for treating a soft soil foundation according to the present invention.
  • Figure 32 is a flow chart showing a method of processing a tumbling soft soil foundation according to the present invention.
  • Figure 33 is a schematic view of a baffle-type river channel dredging construction method of the present invention.
  • Fig. 34 is a view showing the state after completion of the processing of the construction method of a river dam according to the present invention.
  • Figure 35 is a cross-sectional view taken along line A-A of Figure 34.
  • Figure 36 is a cross-sectional view taken along line B-B of Figure 34.
  • Figure 37 is a cross-sectional view taken along line C-C of Figure 34.
  • Figure 39 is an enlarged schematic view of a portion A in Figure 38.
  • Figure 40 is a schematic view showing the structure of the convex body of the present invention adopting a double row structure.
  • 41-45 are schematic views showing the construction process of the prefabricated module pressure-bearing pile composite foundation structure processing method of the present invention.
  • Figure 46 is a schematic view showing the structure of the monolithic concrete preform of the present invention.
  • Figure 47 is a schematic view showing the embodiment of the foundation treatment applied to the bridge approach section of the present invention.
  • Figure 48 is a schematic illustration of an embodiment of the present invention applied to an oil and gas pipeline foundation treatment.
  • Figure 49 is a schematic illustration of an embodiment of the present invention applied to a light rail foundation treatment.
  • Figure 50 is a schematic illustration of an embodiment of a foundation treatment applied to a wind energy installation of the present invention.
  • Figure 51 is a schematic view showing the structure of a prefabricated concrete preform of the present invention.
  • Figure 53 is a schematic view showing the structure of a long module of the prefabricated concrete preform of the present invention.
  • Figure 54 is a schematic view showing the structure of another embodiment of the fabricated concrete preform of the present invention.
  • Figure 55 is a schematic view showing the structure of the square module of the assembled concrete precast of Figure 54.
  • Figure 56 is a schematic view showing the structure of the short module of the assembled concrete precast of Figure 54.
  • Figure 57 is a schematic view showing the structure of the long module of the assembled concrete precast of Figure 54.
  • Figure 58 is a schematic illustration of an embodiment of the present invention with a concrete interlayer.
  • Figure 59 is a schematic illustration of an embodiment of the present invention employing a fabricated reinforced concrete preform.
  • 60-69 are schematic views showing the construction process of the mechanically pressurized compacted drainage consolidation soil combined reinforcement treatment method of the present invention.
  • Figure D70-82 is a schematic view D of the construction process of the method for processing the back-filled reinforced modular pressure-bearing pile combined solidified interlayer composite foundation structure according to the present invention.
  • 91-99 are schematic views showing the construction process of the mechanical pressure-compacting drainage consolidation soil reinforcement treatment method of the present invention.
  • a modular soil pressure forming apparatus of the present invention includes a top frame 1, a pressure forming module 2, and a soil strength detecting device 3.
  • the top frame 1 has a rectangular shape and includes a top plate 101 and a bottom frame 102.
  • the pressure forming module 2 includes one or more "V" shaped protrusions 201 arranged in parallel.
  • the soil strength detecting device 3 may be disposed at the bottom and/or the side wall 202 of the protrusion 201.
  • the soil strength detecting device 3 may be provided on each of the convex bodies 201, or the soil strength detecting device 3 may be provided on the selected one or more specific positions of the convex bodies 201.
  • the weight of the device itself exerts pressure on the soil, and the moisture and air in the soil are squeezed out, so that the solidity between the solid particles in the soil is improved.
  • the outer side wall 202 of the "V" shaped convex body 201 acts as a barrier to prevent the lateral movement of the soil, so that the soil is concentrated in the space 26 between the convex bodies, and is sufficiently squeezed to provide rapid drainage and Compact effect.
  • a filtering device 4 is disposed on the basis of the outer side wall 202 of the convex body 201.
  • the convex body 201 is provided with a plurality of water guiding channels 203 extending through the inner and outer walls.
  • the filtering device 4 adopts a double metal screen, which can be reused, saves cost, and can also improve strength.
  • the convex body 201 is welded by a steel plate or a profiled steel, and a water collecting chamber 5 is formed at the upper portion.
  • the filtering device 4 can quickly extract the water vapor extruded from the soil, and the water vapor passes through the water guiding channel 203 on the "V" shaped convex body 201 and enters the water collecting chamber 5 in the upper portion of the "V" shaped convex body 201.
  • a water suction pipe 10 is inserted into each of the water collecting chambers 5, and the upper portion of the water suction pipe 10 is drained to the outside through the top frame 1.
  • the vacuum pump 7 is used to force drainage.
  • a gas-water separator 8 is provided at the front end of the vacuum pump 7 to prevent moisture from entering the vacuum pump 7 with the air flow, causing the performance or damage of the vacuum pump 7 to be deteriorated.
  • two-way vacuuming is adopted. After the gas-water separator is operated for a period of time, when the separated water quantity reaches the set water level, one vacuum pump stops working, the gas-water separator performs drainage, and the other road remains in operation. . The two roads work alternately, and the drainage is sustainable.
  • the top frame 1 adopts a top plate 101 and a bottom frame 102.
  • the bottom frame 102 is closed around, and the upper portion is connected to the top plate 101, so that the water collecting chambers 5 on the upper portion of each of the "V" shaped convex bodies 201 can communicate with each other to form a closed state.
  • the vacuum collecting chamber forms a negative pressure during the pumping process, which is beneficial to the drainage of the soil.
  • a vacuum negative pressure regulating tube 39 with a control valve is also disposed in the vacuum collecting chamber 5.
  • the vacuum negative pressure regulating tube 39 is used to adjust the negative pressure in the vacuum collecting chamber 5 to form a vacuum gradient in the vacuum collecting chamber 5, the gas-water separator 8 and the vacuum in the vacuum pump 7.
  • the control valve is closed; when the negative pressure in the vacuum collecting chamber 5 reaches the upper limit of the threshold, the control valve is opened, and the vacuum collecting chamber 5 is passed through the vacuum negative pressure
  • the regulating tube 39 is electrically connected to the atmosphere until the negative pressure in the vacuum collecting chamber 5 is lower than the lower limit of the threshold, and the control valve is closed. This cycle is repeated to ensure that the vacuum pump 7 can continue to pump water.
  • the vacuum negative pressure regulating tube 39 may be disposed above, in the middle or at the bottom of the vacuum collecting chamber 5. In the present embodiment, the vacuum negative pressure regulating tube 39 is disposed above the vacuum collecting chamber 5 and located in the region of the top frame 1.
  • a rib body 6 is provided on the outer side wall of the convex body 201.
  • the rib body 6 is formed in a sleeve-like structure that is formed to fit the outer portion of the convex body 201.
  • each of the protrusions 201 is provided with a reinforced body.
  • Another embodiment is to design a total reinforced body that fits all of the projections 201.
  • the top of the reinforced body 6 is in contact with the top frame 1. This embodiment adopts the latter structure.
  • FIG. 6 another embodiment of a modular soil pressure forming apparatus of the present invention is shown.
  • the adjacent convex bodies 201 are continuously arranged without leaving a gap.
  • FIG. 7 a further embodiment of a modular soil pressure forming apparatus of the present invention.
  • the adjacent convex bodies 201 are arranged in a gap and connected by the connecting plate 12.
  • the connecting plate 12 is connected to the top frame 1.
  • FIG. 8 a further embodiment of a modular soil pressure forming apparatus of the present invention is shown.
  • one or more of the protrusions 201 are arranged in an array.
  • the bumps 201 of adjacent rows and columns are arranged side by side.
  • a further embodiment of a modular soil pressure forming apparatus of the present invention one or more of the protrusions 201 are arranged in an array.
  • the bumps 201 of adjacent rows and columns are alternately arranged.
  • the protrusion 201 has a frame-shaped structure with an opening upward.
  • the convex body 201 penetrates in the width direction of the top frame 1, and the plurality of convex bodies 201 are arranged in parallel along the longitudinal direction of the top frame 1.
  • a further embodiment of a modular soil pressure forming apparatus of the present invention a further embodiment of a modular soil pressure forming apparatus of the present invention.
  • the plurality of convex bodies 201 of the upper frame structure are arranged in an array.
  • the bumps 201 of adjacent rows and columns are arranged side by side.
  • FIG. 12 a further embodiment of a modular soil pressure forming apparatus of the present invention is shown.
  • the plurality of convex bodies 201 of the upper frame structure are arranged in an array.
  • the bumps 201 of adjacent rows and columns are alternately arranged.
  • the convex body 201 has a cylindrical structure.
  • a plurality of protrusions 201 are arranged in an array.
  • the bumps 201 of adjacent rows and columns are arranged side by side.
  • a further embodiment of a modular soil pressure forming apparatus of the present invention a top frame and a press-molding module connected thereto constitute a unit 11, and two or more units 11 are joined to form a complete modular soil pressure forming device.
  • FIG. 15 a further embodiment of a modular soil pressure forming apparatus of the present invention is shown.
  • the units 11 of different sizes are made into corresponding unit modules 11-1 and 11-2, and various unit modules are spliced to form a complete modular soil pressure forming device according to design and construction requirements.
  • the top frame 1 is also provided with an impact hammer 13 and a vibration device 15.
  • the impact hammer 13 and the vibration device 15 may be one or more.
  • the impact hammer 13 and the vibration device 15 are each one and are disposed at the center of the top frame 1.
  • the vibration device 15 is directly disposed on the top frame 1, and the impact hammer 13 is disposed above the vibration device 15 through the bracket 14.
  • the impact hammer 13 and the vibrating device 15 exert a dynamic high-frequency force on the soil through the molding module, so that the soil is sufficiently squeezed to accelerate the separation of the water and the soil particles in the soil.
  • the impact hammer 13 is one, disposed at the center of the top frame 1, and the plurality of vibration devices 15 are uniformly disposed at the periphery of the impact hammer 13.
  • each impact hammer 13 is disposed at the center of the corresponding convex body 201.
  • the vibration device 15 may also be disposed inside the convex body 201.
  • a vibrating device 15 is provided above the top frame and inside the convex body 201.
  • FIG. 18 and 19 yet another embodiment of a modular soil pressure forming apparatus of the present invention.
  • the present embodiment is based on any of the aforementioned embodiments, and a baffle 16 is further provided around the top frame 1.
  • the baffle 16 blocks the soil to prevent lateral displacement of the soil, so that the soil is concentrated in the area of the pressure forming module, thereby obtaining more sufficient extrusion and further accelerating the soil. Water vapor is separated from soil particles.
  • the baffle 16 has a flat plate structure and is enclosed and enclosed around the periphery of the top frame 1.
  • the baffle 11 extends upward from the lower side of the top frame 1 to above the top frame 1.
  • the baffle extending from the upper portion of the top frame 1 protects the equipment (such as the impact hammer 13 and the vibrating device 15) disposed on the top frame 1 from sludge, thereby extending the service life of the device.
  • the bottom of the baffle 16 is substantially flush with the bottom of the pressure forming module 2.
  • the inner wall of the baffle 16 has a water permeable layer to facilitate rapid drainage.
  • the material of the baffle 16 may be selected from a corrosion-resistant material such as a steel plate, an alloy plate or a polymer material plate. When steel plates are used, the weight of the entire device can be increased, and more pressure is exerted on the soil, which is advantageous for accelerating drainage.
  • the polymer material board is low in cost and light in weight, and is easy to manufacture, transport and install.
  • FIG. 20 still another embodiment of a modular soil pressure forming apparatus of the present invention.
  • the baffle 16 of the present embodiment is placed only below the top frame 1, and the bottom of the baffle 16 is lower than the bottom of the press-molding module 2.
  • the baffle 16 can wrap more soil. A large amount of soil is confined in the space enclosed by the baffle 16, and under the action of the pressure forming device of the present invention, sufficient compression is obtained. This extrusion is continuously effective because the soil does not produce lateral displacement.
  • FIG. 21 still another embodiment of a modular soil pressure forming apparatus of the present invention.
  • the difference from the embodiment of Figs. 18 and 19 is that the baffle 16 is made of steel.
  • the present invention may be substituted for another embodiment of the embodiment of Figure 21.
  • the difference from the embodiment of Fig. 21 is that the baffle 16 of the present embodiment has a strip-like structure and is uniformly disposed around the periphery of the top frame.
  • the baffle 16 is made of "gong" steel.
  • FIG. 23 a further embodiment of a modular soil pressure forming apparatus of the present invention.
  • the bottom of the pressure forming module 2 is further provided with a vertical pile body 17.
  • the vertical pile body 17 forms a pile hole in the soil body, and after lifting the modular soil body pressure forming device, the finished pile pipe or the filling filler is placed in the pile hole.
  • the pressure forming module performs lateral shallow or medium-shallow treatment on the soil, and the vertical pile body deep-strengthens the soil, so it is not only suitable for drainage reinforcement treatment of shallow or medium-shallow soft soil foundation. At the same time, it can also be applied to the treatment of deep foundations, so that the application of the present invention is more extensive.
  • a filter device 4 can also be provided on the outer side wall of the vertical pile body 17.
  • the filter device 4 forms an integral structure with the filter device 4 on the projection 201.
  • the outer portion of the filtering device 4 of the vertical pile body 17 can also be provided with a reinforced body.
  • the reinforced body remains in the soil after the completion of the construction, and continues to drain while reinforcing the aging.
  • a baffle 16 is further provided around the top frame 1.
  • the following describes several methods for treating a soft soil foundation using a modular soil pressure forming apparatus of the present invention. These method embodiments are based on the structure of the embodiment of Fig. 6, plus the impact hammer 13 and the vibrating device 15. However, the method of treating the soft soil foundation of the present invention is not limited to such a structure, such as a baffle and/or a vertical pile, or a unit splicing. Meanwhile, the application of a modular soil pressure forming device of the present invention is not limited to the following embodiments.
  • Method 1 A soft soil foundation treatment method
  • the self-weight of the modular soil pressure forming device 19 applies a longitudinal static pressure to the soil; the impact hammer 13 applies a longitudinal impact force to the soil; the vibration device 15 causes the device 19 to vibrate, and further Apply high-frequency lateral pressure to the soil; the above three combined forces act on the soil, so that the soil is fully squeezed, and the water in the soil passes through the reinforced body 5, the filtering device 4 and the guide on the convex body.
  • the water passage 203 reaches the water collecting chamber 5 and is taken out via the water suction pipe 10.
  • the pumping system uses a two-way mode, each of which includes a vacuum pump 7 and a front air-water separator 8.
  • the vacuum pump 7 of the road stops working, the gas-water separator 8 performs drainage, and the second road remains in operation.
  • the two roads work alternately, and the drainage is sustainable. In this process, the gas water in the soil is discharged to the utmost extent, and the solidity between the solid particles is improved.
  • the modular soil pressure forming device 19 is lifted.
  • the treated soil forms a shaped soil structure 21 corresponding to the shape of the pressure forming module.
  • the reinforced body 6 remains in the soil and can withstand tensile, compressive and shearing effects, thereby improving the bearing capacity of the foundation, reducing settlement and increasing the stability of the soil. At the same time, the reinforced body 6 can continue to drain.
  • the filler 23 is backfilled in the shaped dimples 22. It can be filled at once or after filling it up. You can also fill in a layer, compact it, fill it in a layer, and then compact it until it is full.
  • step 4 the backfill filler of step 4) can be synchronized with the operation of the next zone in step 5).
  • Method 2 A soft soil foundation treatment method
  • the modular soil pressure forming device 19 extrudes, drains and forms the soil.
  • the modular soil pressing device 19 is lifted, and the treated soil forms a shaped soil structure 21 corresponding to the shape of the pressure forming module.
  • Method 3 A method for treating soft soil foundation
  • the modular soil pressure forming device 19 presses, drains and forms the soil.
  • the modular soil pressing device 19 is lifted, and the treated soil forms a shaped soil structure 21 corresponding to the shape of the pressure forming module.
  • Method 4 A treatment method for rolling soft soil foundation
  • the modular soil pressure forming device 19 presses, drains and forms the soil.
  • steps 2)-3 When the excavation depth does not reach the set value, repeat steps 2)-3). When the excavation depth reaches the set value, the modular soil pressing device 19 is hoisted to the next construction area by the crane 18, and steps 2)-4) are repeated until all the construction areas are processed.
  • the step 3) may be performed by directly hoisting the extruded soil layer by using the earth-moving device without lifting the modular soil pressure forming device 19.
  • the backfilling of the step 5) and the work on the next zone can also be carried out simultaneously.
  • Method 5 A mixed reinforced compact method
  • the modular soil pressure forming device 19 is placed in a construction area in a river channel, the height of the baffle extending upward from the top frame is greater than the depth of the river channel, and the baffle is placed on the top frame.
  • Method 7 A baffle type channel dredging construction method
  • Method 6 The difference from Method 6 is that the baffle of Method 7 is driven into the riverbed during construction. At this time, the modular soil pressure forming device may be provided without a baffle.
  • Method 8 Construction method of a river pond dam
  • a baffle is inserted into the construction area of the river to interrupt the river.
  • the built dam is provided with a three-story road surface such as a road surface 33 for motor vehicles, a green road 34 for non-motor vehicles, and a hydrophilic walkway 35 for pedestrians.
  • the modular soil pressure forming device 19 is hoisted into the construction area to squeeze, drain and form the soil at the bottom of the river bed.
  • a plastic mesh 32 implanted with aquatic plants 31 is placed at the bottom of the river bed after the treatment is completed.
  • a circulating water pipe 36 is also provided in each of the dimples, and the circulating water pipe 36 is connected to the peripheral pipe filter 37 to form a circulation filtering circuit.
  • the duct filter 37 has a replaceable duct filter. After the completion of the construction, the pipeline filter 37 continuously filters the water quality to keep the water quality clean.
  • the construction method is to repeat steps 3.2) and 3.3) after completion of step 3.4), which can further improve the overall strength of the dam.
  • method eight is merely an illustration. In actual construction, the construction methods of the dams on both sides are basically the same. For example, a layer of reinforcement layer is provided, or two layers of reinforcement layers are provided.
  • FIG. 38 and 39 yet another embodiment of the male body of the present invention.
  • the three convex bodies are welded into a row structure, the height of the middle convex body is about twice the height of the other convex bodies; each convex body is superposed and welded by two or more "V" shaped members 221 having substantially the same structure.
  • the ends of the aligned protrusions and the ends of the intermediate protrusions exposing the adjacent protrusions are blocked by the end plate 220, and a "T" shaped bar 218 is disposed between adjacent "V” shaped members, said " A gap is left between the T-shaped bar 218 and the "V” shaped member to form a chute 219 into which the filtering device is inserted.
  • the filter device can be removed after use, the sludge on the filter device is cleaned, and then inserted into the chute for fixation, thereby achieving reuse.
  • a baffle or a guide trough (not shown) is provided on the surface and/or the back of the filter device.
  • the baffle or the diversion trough is better guided to the filtering device after the soil is discharged from the pores of the soil by the lighter water gas generated during the pressing process.
  • the filter device 4 is inserted into the chute 218 outside the convex structure.
  • the top plate 1 is attached to the upper portion of the convex body.
  • a vibrating device 15 and a hanger 49 are placed on the top plate 1.
  • the hanger 49 is provided with two pairs of hanging wheels 50 for easy connection with the hook of the crane.
  • the two-way vacuum pumping system communicates with the inner cavity of the convex body through the water suction pipe 10.
  • Each vacuum pumping system includes a vacuum pump 7, a gas water separator 8 and a solenoid valve 9.
  • a vacuum negative pressure pipe 39 with a control valve 38 is also inserted into the top plate 1, and one end of the vacuum negative pressure pipe 39 communicates with the inner cavity of the convex body.
  • Method 9 Prefabricated module pressure pile composite foundation structure treatment method, using a modular soil pressure forming device to compact the soil and compact the drainage to form a pit; then backfill the filler in the pit.
  • the modular soil pressure forming device 19 is lifted.
  • the treated soil is consolidated by compaction and drainage to form a dimple 22, and the bottom of the dimple 22 forms a shaped soil structure 21 corresponding to the shape of the press-molded module.
  • the depth of the dimples 22 may be the same as the height of the protrusions or greater than the height of the protrusions. The actual penetration depth can also be adjusted according to the design needs.
  • a concrete preform 51 disposed in the shape of the pit is placed in the forming pocket to form a pile foundation.
  • the concrete preform 51 is filled with a connecting member 52 that connects the upper device.
  • the concrete preform 51 is a unitary member, and the connecting member 52 is prefilled on the top of the concrete preform 51.
  • the bridge 54 is erected on the pile foundation array.
  • the bridge 54 is located on the water portion and is fixed by a pier 53.
  • the oil and gas pipeline foundation treatment method the following steps are carried out on the undisturbed soil foundation:
  • the modular soil pressure forming device 19 performs vibration and pressure on the soil body to compact the drainage and solidify to form a molding pit.
  • the concrete preform 51 is of a fabricated structure comprising two pairs of short modules 51-1 and a pair of long modules 51-2. Each pair of short modules 51-1 is bonded side by side, and a pair of long modules 51-2 are bonded side by side. The pair of long modules 51-2 are respectively bonded to the two pairs of short modules 51-1 to form a sandwich structure.
  • the top of the short module is filled with a connecting member 52-1, and the top of the long module is filled with a connecting member 52-2. After the modules are assembled, the connecting members thereon are also assembled into a complete member 52.
  • the modular soil pressure forming device 19 performs vibration and pressure on the soil body to compact the drainage and solidify to form a molding pit.
  • a layer of concrete interlayer 48 is sprayed with a spray gun on the surface of the forming pocket.
  • the concrete interlayer is made of cement concrete, and 2 to 3% of a quick-setting agent is added, and the thickness of the layer is 50-300 mm.
  • the concrete preform 51 is of a fabricated structure and includes a square module 51-3, two pairs of wedge-shaped short modules 51-4, and a pair of wedge-shaped long modules 51-5.
  • Each pair of short modules 51-4 is arranged side by side, and the top is connected to the square module 51-3; a pair of long modules 51-5 are arranged side by side, and the top is connected to the square module 51-3.
  • a pair of long modules 51-5 are respectively connected to the two pairs of short modules 51-3 to form a sandwich structure.
  • the above modules are connected by fasteners.
  • the top of the square module 51-3 is filled with a connecting member 52.
  • the foundation treatment method of the wind energy device performs the following steps on the undisturbed soil foundation:
  • the modular soil pressure forming device 19 performs vibration and pressure on the soil body to compact the drainage and solidify to form a molding pit.
  • a concrete preform 51 disposed in the shape of the pit is placed in the forming pocket to form a pile foundation.
  • the concrete preform 51 is of a unitary structure, and a reinforcing member is disposed inside, wherein the upper part is a box type stiffening member 59 and the lower part is a frame type stiffening member 60.
  • the wind energy device 58 is fixed to the connecting member 52 of the pile foundation by the adapter 61.
  • Prefabricated module pressure pile composite composite foundation structure treatment method the following steps are carried out on the modified treated foundation:
  • the sixth embodiment is an improvement based on the fifth embodiment.
  • the difference from the fifth embodiment is that the method for modifying the foundation is as follows:
  • the modular soil body pressing and forming device of the invention is used for vibration and pressure compaction and drainage consolidation, so that the laid bulk material and the soil body are intertwined and squeezed to achieve soil mixing modification and addition. The effect of reinforcement.
  • the seventh embodiment is an improvement on the basis of the fifth embodiment.
  • the difference from the fifth embodiment is that the method for modifying the foundation is as follows:
  • a layer of hard stone square material, one layer of sandstone aggregate, one layer of geo-reinforced material and one layer of modified soil are laid in sequence on the original undisturbed soil in the construction area.
  • the modified soil is laid as follows: the undisturbed soil and the cement are stirred and mixed in a mixer to form a modified soil, and the fluid modified soil mixture is poured into the construction area, and the paving is smoothed.
  • the modular soil compaction molding device is used for pressure compaction and drainage consolidation, so that the laid bulk material and the soil body are interwoven and mixed to achieve the effect of soil mixing modification and reinforcement. .
  • Embodiment 8 is an improvement on the basis of Embodiment 5.
  • the difference from the fifth embodiment is that the method for modifying the foundation is as follows:
  • A) Firstly lay a layer of loose material mixture composed of soil sandstone and broken construction waste on the original undisturbed soil in the current construction area, and then lay a layer of composite geotechnical material, so that it is alternately laid three times to make the bulk material and geotechnical
  • the rib material forms a multi-layered sandwich structure.
  • the modular soil pressure forming device of the invention uses the modular soil pressure forming device of the invention to press and compact the soil, and to form an interweaving and mixing between the laid bulk material and the geo-reinforced material and the soil body.
  • the treated soil is compacted by drainage and then formed into a shaped soil structure corresponding to the shape of the pressure forming module.
  • Method 10 The mechanical pressure compaction drainage consolidation soil combined reinforcement reinforcement treatment method of the invention firstly laying at least one layer of bulk material on the undisturbed soil; then adopting a modular soil pressure forming device to the soil body The compaction and drainage consolidation is carried out to form a mutual interweaving and mixing between the laid bulk material and the soil body, thereby achieving the effects of soil mixing modification and reinforcement reinforcement, and realizing the reinforcement of the engineering soft soil.
  • a mechanical pressure compaction drainage consolidation soil joint reinforcement reinforcement treatment method is carried out according to the following steps:
  • a plurality of drainage materials 64 are vertically driven into the undisturbed soil 44 of the construction area.
  • the drainage material is made of plastic drainage board 64-1, the thickness is >4mm, the width is 100mm, the board spacing is 1.0m, and the actual penetration depth should not be less than the design depth.
  • a layer of geo-reinforced material 45 is laid laterally until all the construction areas are completed; the geo-reinforced material 45 is reinforced with a belt 45-3.
  • a mechanical pressure compaction drainage consolidation soil joint reinforcement reinforcement treatment method is carried out according to the following steps:
  • the composite geotechnical material 45-1 is formed into a shape that fits the convex structure, and a side plate 45-5 is provided around the periphery to constitute a prefabricated frame member.
  • a plurality of plastic drainage belts 64-2 are vertically disposed at a certain interval and a certain depth in the undisturbed soil 44 of the current construction area, and then a composite geotextile prefabricated member 45-1 is placed.
  • the modular soil pressure forming device is lifted, and the treated soil is compacted by drainage and solidification to form a shaped soil structure corresponding to the shape of the pressure forming module.
  • a layer of bulk material 43 mainly composed of sand and gravel aggregate is laid on the formed soil structure, and compacted by a road roller.
  • a mechanical pressure compaction drainage consolidation soil joint reinforcement reinforcement treatment method is carried out according to the following steps:
  • a plurality of plastic drainage filter tubes 64-3 are vertically disposed at a certain interval and a certain depth in the undisturbed soil 43 of the construction area; and then a layer of geomembrane 45-2 is laid, in which the geomembrane is laminated 45-2 is topped with cement dry powder 62; then a layer of gravel aggregate 43-2 is laid, and cement dry powder 62 is laid on the layer of gravel aggregate 43-2; finally, a layer of modified soil 47 is laid.
  • the modified soil 47 is laid as follows: the undisturbed soil and the cement are stirred and mixed in a mixer to form a modified soil, and the fluid modified soil mixture is poured into the construction area, and the paving is smooth.
  • the modular soil compaction molding device is used to press and compact the soil and compact the drainage, so that the laid geotechnical reinforcement material, the bulk material, the modified soil and the soil body are interwoven and mixed. It achieves the effect of soil mixing modification and reinforcement, and realizes the reinforcement of engineering soft soil.
  • the treated soil is compacted by drainage and solidification to form a shaped soil structure corresponding to the shape of the pressure forming module.
  • a mechanical pressure compaction drainage consolidation soil joint reinforcement reinforcement treatment method is carried out according to the following steps:
  • a plurality of sand bagged bag bags 64-4 are vertically disposed at a certain interval and a certain depth in the undisturbed soil of the current construction area; and then a layer of geocells matching the shape of the convex body is laid.
  • Prefabricated member 45-4 and a layer of sandstone 43-2, part of the sandstone 43-2 is laid on the soil through the grid of the geocell 45-4, so that the geocell is filled in the sandstone A mixed structure is formed.
  • the treated soil is compacted by drainage and solidification to form a shaped soil structure corresponding to the shape of the pressure forming module.
  • Method 11 Backfilling the treatment method of the composite foundation structure of the reinforced modular pressure-bearing pile combined with the solidified interlayer, using a modular soil pressure forming device to compact the soil and compact the drainage to form a pit; The backfill is filled in the pit.
  • a concrete interlayer 48 is first laid at the bottom of the forming pit, and then the modified soil is backfilled.
  • the modified soil is prepared and laid as follows: the undisturbed soil and the cement are proportioned (the cement dosage is about 5% of the dry soil weight, the maximum dry density is 1.92 g/cm 3 , and the optimum water content is 12.9%).
  • the mixture is stirred and mixed in a mixer to form a modified soil, and the fluid modified soil mixture is poured into the construction area and paved flat.
  • the modular soil pressure forming device presses and compacts the soil to form a pit, and the bottom of the pit forms a formed soil structure corresponding to the shape of the pressure forming module.
  • a layer of concrete interlayer 48 is sprayed by a spray gun at the bottom and side walls of the forming pocket.
  • the concrete is cement concrete, and 2 to 3% of a quick-setting agent is added, and the thickness of the enamel layer is 50-300 mm.
  • a layer of gravel aggregate 43-2 is backfilled, and a filtering device 65 having a function of water filtration and circulation purification is disposed, and then the aggregate of gravel 43-2 is laid until the pit is filled.
  • the modular soil pressure forming device presses and compacts the soil to form a pit, and the bottom of the pit forms a formed soil structure corresponding to the shape of the pressure forming module.
  • the connecting member 52 is buried when the concrete is in a fluid state.
  • the connecting member 52 is used to connect an upper device such as a light rail, an iron tower, a wind energy or a solar power device.
  • the modular soil pressure forming device presses and compacts the soil to form a pit, and the bottom of the pit forms a formed soil structure corresponding to the shape of the pressure forming module.
  • a plurality of drainage materials 64 are vertically driven into the undisturbed soil 44 of the construction area.
  • the drainage material is made of plastic drainage board 64-1, the thickness is >4mm, the width is 100mm, the board spacing is 1.0m, and the actual penetration depth should not be less than the design depth. .
  • the modular soil pressure forming device presses and compacts the soil to form a pit, and the bottom of the pit forms a formed soil structure corresponding to the shape of the pressure forming module.
  • the modular soil pressure forming device presses and compacts the soil to form a pit, and the bottom of the pit forms a formed soil structure corresponding to the shape of the pressure forming module.
  • Undisturbed soil laying use the crawler excavator to pour the undisturbed soil on the formed soil, stir it twice with a road mixer, break up the large soil block, and remove the super-diameter soil and debris;
  • HEC curing agent laying firstly apply static pressure to the soil by vibratory roller, divide the square grid by width 3m* length 3m, sprinkle HEC curing agent in each square grid, and evenly use HEC curing agent with scraper Spread out.
  • Modified soil mixing Mixing the modified soil with a road mixer for 2 times, the speed should be less than 3.3km/h, and the color of the modified soil should be consistent after mixing, without ash, gray and flower surface.
  • Plastic surgery static pressure is applied once by a vibratory roller, and then the modified soil is shaped by a grader.
  • the modular soil pressure forming device presses and compacts the soil to form a pit, and the bottom of the pit forms a formed soil structure corresponding to the shape of the pressure forming module.
  • the modular soil pressure forming device presses and compacts the soil to form a pit, and the bottom of the pit forms a formed soil structure corresponding to the shape of the pressure forming module.
  • the top of the box-type reinforced prefabricated member is completely open, or the closure only leaves a filling port 6701 for pouring concrete, and the side or bottom of the box has an opening or no opening.
  • the asphalt concrete 66 will flow from the opening to the gap between the box-type reinforced prefabricated member 67-2 and the bottom gravel aggregate 43-2 and the side soil during the pouring; when there is no opening at the bottom, The asphalt overflows from the upper filling port after filling the tank, and flows into the gap between the tank and the soil and the reinforced prefabricated member from the side.
  • the modular soil pressure forming device presses and compacts the soil to form a pit, and the bottom of the pit forms a formed soil structure corresponding to the shape of the pressure forming module.
  • Method 12 The mechanical pressure compaction drainage consolidation soil combined with soil modification treatment method of the invention firstly lays at least one layer of bulk material on the undisturbed soil; then adopts a modular soil pressure forming device The soil is pressed and compacted and drained, so that the laid bulk material and the soil form a mutual interweaving and mixing, which achieves the effect of soil mixing modification and reinforcement, and realizes the reinforcement of the engineering soft soil. .
  • a plurality of drainage materials 64 are vertically driven in the undisturbed soil 44 of the construction area.
  • the drainage material is made of plastic drainage board 64-1, the thickness is >4mm, the width is 100mm, the board spacing is 1.0m, and the actual penetration depth should not be less than the design depth.
  • a layer of modified soil 47 is laid laterally and mixed with a road mixer until all the construction areas are completed; the layer modified soil 47 is composed of soil, sand and curing agent, and the mass ratio of the three is 6: 3:1, wherein the curing agent is lime.
  • modified soil 47-1 is laid laterally.
  • the modified soil is prepared by mixing HG inorganic/organic composite soil consolidation material and cement, and mixed with a road mixer until all construction areas are completed.
  • the modular soil compaction molding device is used to pressurize and compact the soil, and the intertwined extrusion and mixing between the modified soil and the undisturbed soil can achieve the effect of soil modification and reinforcement. Reinforcement of weak soil in engineering.
  • the treated soil is compacted by drainage and solidification to form a shaped soil structure corresponding to the shape of the pressure forming module.
  • a plurality of plastic drain pipes 64-3 are vertically disposed at a certain interval and a certain depth in the undisturbed soil of the construction area. Then, a layer of modified soil 47 is laid, and the modified soil is made of asphalt as a curing agent, and then a layer of sandstone aggregate 43-2, a layer of cement dry powder 62 and a layer of geomembrane 45-2 are sequentially laid.
  • the treated soil is compacted by drainage and solidification to form a shaped soil structure corresponding to the shape of the pressure forming module.
  • a plurality of sand bagged tube bags 64-4 are vertically disposed at a certain interval and a certain depth in the undisturbed soil of the current construction area. Then lay a modified soil as follows:
  • Undisturbed soil laying use the crawler excavator to pour the undisturbed soil on the formed soil, stir it twice with a road mixer, break up the large clods, and remove the super-diameter soil and debris;
  • HEC curing agent laying firstly apply static pressure to the soil by vibratory roller, divide the square grid by width 3m* length 3m, sprinkle HEC curing agent in each square grid, and evenly use HEC curing agent with scraper Spread out.
  • Modified soil mixing Mixing the modified soil with a road mixer for 2 times, the speed should be less than 3.3km/h, and the color of the modified soil should be consistent after mixing, without ash, gray and flower surface.
  • the soil body is subjected to vibration pressure by a modular soil pressure forming device, and the treated soil body is compacted by drainage and solidification to form a composite consolidated soil structure corresponding to the shape of the pressure forming module.
  • Method 13 The mechanical pressure-pressing drainage consolidation soil reinforcement treatment method of the invention firstly laying at least one layer of bulk material on the undisturbed soil; then applying the modular soil pressure forming device to the soil body The compacted drainage consolidation is carried out to form a mutual interweaving and mixing between the laid bulk material and the soil body, thereby achieving the effects of soil mixing modification and reinforcement reinforcement, and realizing the reinforcement of the engineering soft soil.
  • a mechanical pressure compaction drainage consolidation soil reinforcement treatment method is carried out according to the following steps:
  • a plurality of drainage materials 64 are vertically driven in the undisturbed soil 44 of the construction area.
  • the drainage material is made of plastic drainage board 64-1, the thickness is >4mm, the width is 100mm, the board spacing is 1.0m, and the actual penetration depth should not be less than the design depth.
  • a layer of bulk material 43 is laid laterally until all the construction areas are completed; the bulk material 43 is made of loose sand aggregate.
  • a mechanical pressure compaction drainage consolidation soil reinforcement treatment method is carried out according to the following steps:
  • the treated soil is compacted by drainage and solidification to form a shaped soil structure corresponding to the shape of the pressure forming module.
  • a mechanical pressure compaction drainage consolidation soil reinforcement treatment method is carried out according to the following steps:
  • a plurality of plastic drainage filter tubes 64-3 are vertically arranged at a certain interval and a certain depth in the undisturbed soil of the construction area, and then a layer of hard stone square material 43-1 and one layer are sequentially laid.
  • the modified soil 47 is laid as follows: the undisturbed soil and the cement are stirred and mixed in a mixer to form a modified soil, and the fluid modified soil mixture is poured into the construction area, and the paving is smooth.
  • the modular soil compaction molding device is used to press and compact the soil and compact the drainage, so that the laid bulk material, the geo-reinforced material, the modified soil and the soil form interweaving and mixing. It achieves the effect of soil mixing modification and reinforcement, and realizes the reinforcement of engineering soft soil.
  • the treated soil is compacted by drainage and solidification to form a shaped soil structure corresponding to the shape of the pressure forming module.
  • a mechanical pressure compaction drainage consolidation soil reinforcement treatment method is carried out according to the following steps:
  • a plurality of sand bagged bag bags 64-4 are vertically arranged at a certain interval and a certain depth in the undisturbed soil of the current construction area; and then a layer of sand and stone aggregates and broken construction waste is laid.
  • the mixture of body materials, and then a layer of composite geotechnical material, is alternately laid three times to form a multi-layer sandwich structure between the bulk material and the geo-reinforced material.
  • the treated soil is compacted by drainage and solidification to form a shaped soil structure corresponding to the shape of the pressure forming module.
  • Undisturbed soil laying use the crawler excavator to pour the undisturbed soil on the formed soil, stir it twice with a road mixer, break up the large clods, and remove the super-diameter soil and debris;
  • HEC curing agent laying firstly apply static pressure to the soil by vibratory roller, divide the square grid by 3m* length and 3m, sprinkle HEC curing agent in each square grid, and evenly spread HEC curing agent with scraper Spread out.
  • Modified soil mixing Mixing the modified soil with a road mixer for 2 times, the speed should be less than 3.3km/h, and the color of the modified soil should be consistent after mixing, without ash, gray and flower surface.
  • a mechanical pressure compaction drainage consolidation soil reinforcement treatment method is carried out according to the following steps:
  • a plurality of plastic drainage boards are vertically disposed at a certain interval and a certain depth in the undisturbed soil of the construction area; then a layer of bulk material 43 is laid, and cement dry powder 62 is laid on the layer of bulk material 43. Then, a second layer of bulk material 43 is laid, and cement dry powder 62 is laid on the layer of bulk material 43; finally, a third layer of bulk material 43 is laid. All construction areas are completed.
  • the treated soil is compacted by drainage and solidification to form a shaped soil structure corresponding to the shape of the pressure forming module.
  • a mechanical pressure compaction drainage consolidation soil reinforcement treatment method is carried out according to the following steps:
  • a plurality of plastic drainage plates 45-1 are vertically disposed at a certain interval and a certain depth in the undisturbed soil of the construction area; then a layer of bulk material 43 is laid, and a layer of the bulk material 43 is laid on the layer. a layer of wet fluid-like cement concrete 63; then a layer of geo-reinforced material 45 is laid, and a layer of wet-flowing cement concrete 63 is laid on the geo-reinforced material 45; finally, the first layer of bulk is laid. Material 43. All construction areas are completed.
  • the treated soil is compacted by drainage and solidification to form a shaped soil structure corresponding to the shape of the pressure forming module.
  • HEC curing agent laying firstly apply static pressure to the soil by vibratory roller, define the square grid by width 3m* length 3m, sprinkle HEC curing agent in each square grid, and solidify HEC with scraper The agent spreads evenly.
  • Modified soil mixing Mixing the modified soil with a road mixer for 2 times, the speed should be less than 3.3km/h, and after mixing, the color of the modified soil is the same, no ash, gray and flower surface.
  • C.5 Rolling: Immediately after paving and shaping, immediately use a vibratory roller to perform weak vibration rolling for 1 time, then vigorously vibrate 1 time, and weakly vibrate 1 time. When rolling, follow the principle of light weight, heavy weight, first slow and fast.
  • the rolling speed is controlled in the range of 1km/h to 1.5km/h, the weak vibration force is controlled at about 200kPa, and the strong vibration force is controlled at about 350kPa.
  • this application has developed a "soil pressure forming device" after several years of research and development.
  • This is a kind of foundation-based reinforcement principle.
  • the single station and the multi-station can be connected simultaneously to form a frame-type integral foundation foundation, which greatly improves the bearing capacity and stability of the treated foundation and reduces post-construction settlement. Its biggest feature is that it has changed the traditional column-shaped and pier-type reinforcement body to form the "V"-shaped innovative structure that best matches the deformation characteristics of the foundation. It is formed by high-efficiency mechanical extrusion method to meet the comprehensiveness of different engineering foundations. Requirements.
  • the invention has wide application range, from soft muddy soil to loose sandy soil, and various complex soil foundations can be applied, which is more suitable than the general composite foundation treatment method or the heavy hammer compaction compaction method.
  • the invention can expand the field of foundation reinforcement from the traditional housing construction, highway, railway, airport, dam and other civil engineering to high-speed rail, oil and gas pipelines, communication power facilities, wind power solar facilities and other new and special construction engineering applications.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
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  • General Engineering & Computer Science (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

L'invention concerne un dispositif d'application de pression et de moulage de sol modulaire, applicable à un traitement de renforcement d'une fondation de sol souple à couche peu profonde ou centrale peu profonde et comprenant un cadre supérieur (1), un module d'application de pression et de moulage (2), et un dispositif de détection de résistance du sol (3). Le module d'application de pression et de moulage (2) comprend un ou plusieurs corps convexes (201); la partie supérieure du module d'application de pression et de moulage (2) est reliée au cadre supérieur (1). Le dispositif d'application de pression et de moulage de sol modulaire est placé sur le sol traité, de telle sorte que le poids du dispositif en soi applique une pression sur le sol pour extruder de l'humidité et de l'air à partir du sol, de sorte que le degré de compactage entre les particules solides dans le sol est amélioré. Les corps convexes (201) au fond du dispositif d'application de pression et de moulage (2) produisent un effet de blocage sur le sol pour empêcher un mouvement latéral du sol et concentrer le sol dans des espaces entre les corps convexes (201) pour obtenir une compression suffisante, ce qui permet d'obtenir les effets d'un drainage rapide et d'une extrusion compacte. L'invention concerne également de multiples procédés de traitement de fondation de sol souple utilisant le dispositif de moulage et d'application de pression de sol modulaire.
PCT/CN2019/086347 2018-05-11 2019-05-10 Dispositif d'application de pression et de moulage de sol modulaire et procédé de traitement de fondation de sol souple WO2019214701A1 (fr)

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CN201810447421.7 2018-05-11
CN201811224298.9 2018-10-19
CN201811224888.1 2018-10-19
CN201811224274.3A CN109208571A (zh) 2018-10-19 2018-10-19 一种机械施压挤密排水固结土体联合加筋增强处理方法
CN201811224873.5 2018-10-19
CN201811224873.5A CN109403305A (zh) 2018-10-19 2018-10-19 一种机械施压挤密排水固结土体联合土体改性增强处理方法
CN201811224888.1A CN109403307A (zh) 2018-10-19 2018-10-19 一种机械施压挤密排水固结土体增强处理方法
CN201811224298.9A CN109208572A (zh) 2018-10-19 2018-10-19 预制模块承压桩体复合地基结构处理方法
CN201811224274.3 2018-10-19
CN201811224254.6A CN109440756A (zh) 2018-10-19 2018-10-19 回填放置加筋模块承压桩体联合固化夹层复合地基结构处理方法
CN201811224254.6 2018-10-19

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Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
CN111764214A (zh) * 2020-07-15 2020-10-13 湖南省交建工程集团有限公司 软土路基土工合成材料立体加固处理施工工法
CN113216145B (zh) * 2021-05-12 2022-07-29 国强建设集团有限公司 一种钢板桩结合粘土密封墙真空预压施工工法
CN113153300B (zh) * 2021-05-13 2023-02-14 贵州理工学院 一种基于高水充填材料的综合型煤矿开采装置及方法
CN113919025A (zh) * 2021-09-06 2022-01-11 广东电网有限责任公司广州供电局 坑槽工程量的确定方法、装置、计算机设备和存储介质
CN114622641A (zh) * 2022-02-28 2022-06-14 中国化学工程第十四建设有限公司 一种超大型斜壁应急事故池建造工艺

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013245549A (ja) * 2012-05-28 2013-12-09 Teruo Takei 長周期地震動の液状化圧で固液分離脱水による泥状化現象防止と圧密地盤造成工法
CN103898892A (zh) * 2014-03-06 2014-07-02 中交天津港湾工程研究院有限公司 液压振动联合真空吸水加固软弱地基的处理方法及其装置
WO2015187419A1 (fr) * 2014-06-02 2015-12-10 Geopier Foundation Company, Inc. Appareil et procédé d'amélioration des sols
CN206385531U (zh) * 2016-10-27 2017-08-08 上海欧本钢结构有限公司 一种加固软土地基的管桩装置
CN108360496A (zh) * 2018-05-11 2018-08-03 浙江佳源基建工程科技有限公司 一种多功能模块式土体施压成型装置
CN108677911A (zh) * 2018-05-11 2018-10-19 杭州永创基建工程科技股份有限公司 一种模块式土体施压成型装置及软土地基的处理方法
CN109208572A (zh) * 2018-10-19 2019-01-15 杭州永创基建工程科技股份有限公司 预制模块承压桩体复合地基结构处理方法
CN109208571A (zh) * 2018-10-19 2019-01-15 杭州永创基建工程科技股份有限公司 一种机械施压挤密排水固结土体联合加筋增强处理方法
CN109403307A (zh) * 2018-10-19 2019-03-01 杭州永创基建工程科技股份有限公司 一种机械施压挤密排水固结土体增强处理方法
CN109403305A (zh) * 2018-10-19 2019-03-01 杭州永创基建工程科技股份有限公司 一种机械施压挤密排水固结土体联合土体改性增强处理方法
CN109440756A (zh) * 2018-10-19 2019-03-08 杭州永创基建工程科技股份有限公司 回填放置加筋模块承压桩体联合固化夹层复合地基结构处理方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9915050B2 (en) * 2009-06-24 2018-03-13 Geopier Foundation Company, Inc. Apparatus and method for ground improvement
CN101736734B (zh) * 2009-12-31 2014-02-26 郭艳景 极软淤泥快速加固的方法
CN107100206A (zh) * 2017-06-22 2017-08-29 山东建筑大学 一种地下室渗漏的防治方法

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013245549A (ja) * 2012-05-28 2013-12-09 Teruo Takei 長周期地震動の液状化圧で固液分離脱水による泥状化現象防止と圧密地盤造成工法
CN103898892A (zh) * 2014-03-06 2014-07-02 中交天津港湾工程研究院有限公司 液压振动联合真空吸水加固软弱地基的处理方法及其装置
WO2015187419A1 (fr) * 2014-06-02 2015-12-10 Geopier Foundation Company, Inc. Appareil et procédé d'amélioration des sols
CN206385531U (zh) * 2016-10-27 2017-08-08 上海欧本钢结构有限公司 一种加固软土地基的管桩装置
CN108360496A (zh) * 2018-05-11 2018-08-03 浙江佳源基建工程科技有限公司 一种多功能模块式土体施压成型装置
CN108677911A (zh) * 2018-05-11 2018-10-19 杭州永创基建工程科技股份有限公司 一种模块式土体施压成型装置及软土地基的处理方法
CN109208572A (zh) * 2018-10-19 2019-01-15 杭州永创基建工程科技股份有限公司 预制模块承压桩体复合地基结构处理方法
CN109208571A (zh) * 2018-10-19 2019-01-15 杭州永创基建工程科技股份有限公司 一种机械施压挤密排水固结土体联合加筋增强处理方法
CN109403307A (zh) * 2018-10-19 2019-03-01 杭州永创基建工程科技股份有限公司 一种机械施压挤密排水固结土体增强处理方法
CN109403305A (zh) * 2018-10-19 2019-03-01 杭州永创基建工程科技股份有限公司 一种机械施压挤密排水固结土体联合土体改性增强处理方法
CN109440756A (zh) * 2018-10-19 2019-03-08 杭州永创基建工程科技股份有限公司 回填放置加筋模块承压桩体联合固化夹层复合地基结构处理方法

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