CN114592482B - Mobile high-precision underwater layered hydraulic filling control construction method - Google Patents
Mobile high-precision underwater layered hydraulic filling control construction method Download PDFInfo
- Publication number
- CN114592482B CN114592482B CN202210212509.7A CN202210212509A CN114592482B CN 114592482 B CN114592482 B CN 114592482B CN 202210212509 A CN202210212509 A CN 202210212509A CN 114592482 B CN114592482 B CN 114592482B
- Authority
- CN
- China
- Prior art keywords
- construction
- hydraulic
- filling
- floating platform
- hydraulic filling
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 238000010276 construction Methods 0.000 title claims abstract description 152
- 238000007667 floating Methods 0.000 claims abstract description 88
- 239000002002 slurry Substances 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000000034 method Methods 0.000 claims abstract description 37
- 238000012544 monitoring process Methods 0.000 claims abstract description 25
- 230000007613 environmental effect Effects 0.000 claims abstract description 7
- 238000007664 blowing Methods 0.000 claims description 63
- 239000002689 soil Substances 0.000 claims description 54
- 239000004576 sand Substances 0.000 claims description 37
- 230000008569 process Effects 0.000 claims description 16
- 238000009792 diffusion process Methods 0.000 claims description 13
- 239000013049 sediment Substances 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 12
- 238000005429 filling process Methods 0.000 claims description 11
- 238000005192 partition Methods 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000012360 testing method Methods 0.000 claims description 9
- 238000004062 sedimentation Methods 0.000 claims description 8
- 238000004088 simulation Methods 0.000 claims description 8
- 238000013461 design Methods 0.000 claims description 7
- 230000033001 locomotion Effects 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 238000004364 calculation method Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000012876 topography Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims description 3
- 238000000638 solvent extraction Methods 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 claims description 2
- 238000012806 monitoring device Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 239000010410 layer Substances 0.000 description 21
- 239000010802 sludge Substances 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 6
- 230000007547 defect Effects 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000011268 mixed slurry Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/18—Reclamation of land from water or marshes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/02—Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
- E02F7/10—Pipelines for conveying excavated materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/30—Landfill technologies aiming to mitigate methane emissions
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Underground Or Underwater Handling Of Building Materials (AREA)
Abstract
The invention belongs to the technical field of dredging hydraulic reclamation construction, and particularly relates to a movable high-precision underwater layered hydraulic reclamation control construction method. The method comprises the following steps: step 1, preparing construction; step 2, layer-by-layer hydraulic filling; and 3, construction ending. The invention relates to movable high-precision underwater layered hydraulic filling equipment suitable for a construction method, which is characterized by comprising the following steps: the system comprises a floating platform, a slurry conveying pipeline, a movable positioning winch, a layered hydraulic reclamation module, a monitoring module and a control module. On the basis of monitoring and analyzing the environmental conditions such as construction water depth, water flow, waves and the like, the high-precision control of the thickness and flatness of a sedimentary layer is realized by dynamically adjusting parameters such as the hydraulic filling flow rate, the concentration, the lowering depth, the moving speed and the like, the continuous operation construction efficiency is improved, the hydraulic filling flatness is improved, the influence on the surrounding water area environment is reduced, and the engineering quality is ensured.
Description
Technical Field
The invention belongs to the technical field of dredging hydraulic reclamation construction, and particularly relates to a movable high-precision underwater layered hydraulic reclamation control construction method.
Background
The construction of filled artificial islands is not subject to challenges brought by complex construction conditions, such as overlarge water depth in a construction area, abnormal waves and climates, complex geology of deep soft soil, limited construction materials and the like. Meanwhile, the requirements of overseas dredging engineering on construction precision are obviously different from those of domestic engineering, particularly, the detection is more strict in terms of hydraulic filling flatness and post-construction sedimentation, and the requirements on higher precision are provided for thickness and flatness control in the hydraulic filling process. The current hydraulic filling construction method mainly comprises a direct hydraulic filling method and a layered hydraulic filling method, wherein the domestic direct hydraulic filling method is a stepwise push type hydraulic filling construction method adopting traditional partition and block, and particularly the hydraulic filling soil quality is not distinguished in the hydraulic filling process. After the staged batch hydraulic filling operation, the problems of low hydraulic filling precision and flatness, unstable foundation, landslide of hydraulic filling layers and the like are easily caused due to inconsistent soil properties of different subareas even when the foundation settlement is seriously uneven. Therefore, the method cannot meet the requirements of the engineering on high-flatness and high-quality hydraulic filling construction. While the application of the layered hydraulic filling method mainly appears as follows:
(1) Authorized bulletin number: CN 109083099B, name: the invention relates to a construction process for a hydraulic filling sludge land making and a device thereof, wherein the device comprises a solidification treatment system and a slurry improved paving system, and the construction process comprises the following steps:
1. filling the sludge slurry into a filling area or a sedimentation tank, and forming a stacking layer of thick sludge slurry through sedimentation;
2. pumping thick sludge slurry by a pumping device, conveying a curing agent to the thick sludge slurry, and mixing the thick sludge slurry with the curing agent in a pipeline before or after the pump to form mixed slurry;
3. conveying the mixed slurry to a mixing conveying device to form improved slurry;
4. delivering the modified slurry to a paving pipe system through a connecting pipe section;
5. the paving system lays the modified slurry to a specified thickness.
The defects are that: 1. the method is suitable for construction of the silt soil reclamation land, and is applicable to other soil properties to be confirmed. 2. The technology forms improved slurry by adding the curing agent into the slurry, and the configuration of the curing agent, the quality and effect of the curing agent and whether the curing agent has influence on a construction water area are a huge technical problem and a great challenge. 3. The spreading system has unclear expression of spreading and filling the solidified and improved hydraulic filling sludge layer by layer according to a certain time interval and thickness, and has no great guiding significance on the flatness and quality control of the hydraulic filling.
(2) Bulletin number: CN 102493396A, name: the construction method for the layer-by-layer mud blowing of the perisea land comprises the following steps: selecting a ship machine; the middle bank is arranged; pipeline and hydraulic filling pipe orifice arrangement; a water discharge port is arranged; and (5) blowing and filling. The method has the effects that a layered hydraulic filling process is adopted, firstly, the silt clay is dug and filled into the lower layer of the land-making area, then, the soil with strong water permeability such as the lower layer of the silt clay, the silt soil, the silt sand and the like is dug and filled uniformly in the upper layer of the land-making area for 1.0-1.5 m thick, after the mud blowing is finished, the surface ponding is removed in an organized way, and the soil with the thickness of 1.0-1.5 m on the surface layer has higher bearing capacity, so that a working cushion layer with certain endurance is formed, and a good foundation is laid for the subsequent soft foundation treatment construction. The defects are that: 1. before construction, the surrounding dykes are required to be constructed, pipelines are distributed along the surrounding dykes of the hydraulic reclamation area, and a middle dam is arranged in the middle of the hydraulic reclamation area, so that the hydraulic reclamation method is high in early-stage cost and long in time consumption, and is not suitable for large-scale hydraulic reclamation construction under the condition of large water depth in open sea areas. 2. The pipe opening spacing needs to be adjusted for hydraulic filling of different soil properties, and the construction continuity is poor. 3. The construction needs a plurality of hydraulic reclamation pipe orifices of hydraulic reclamation district simultaneous arrangement, and it adopts the tee bend to link up with the mud pipe, and the pipeline arrangement requires highly to mud pipeline and mouth of pipe quantity are big, and construction cost is high.
(3) Authorized bulletin number: CN 109083099B, name: the invention relates to a construction method for forming a land area around a filled sea, which is used for construction in a shallow dike, wherein the shallow dike is divided into a first hydraulic filling area, a second hydraulic filling area and a third hydraulic filling area; a water storage lake is arranged between the first hydraulic reclamation area and the second hydraulic reclamation area; the third hydraulic filling area is closely attached to the second hydraulic filling area; the construction method for forming the reclamation sea land area comprises a reclamation mud construction stage aiming at a first reclamation area and a water storage lake and a reclamation sand construction stage aiming at a second reclamation area and a third reclamation area; the construction stage of dredger fill comprises selecting two cutter suction dredger to lay cutter suction dredger and dredger fill pipeline; the construction stage of sand blowing and filling comprises the steps of sucking up a sand-water mixture by means of a sand pump arranged on a sand taking boat, and then conveying the mixture to the side of the sand blowing boat, and carrying out sand blowing and filling construction by using the sand blowing boat; the invention ensures that the first bank pipe and the second bank pipe are not damaged, and utilizes the cutter suction dredger and the sand blowing ship to carry out the construction of blowing and filling mud and blowing and filling sand on different blowing and filling areas. The defects are that: 1. the method is divided into 3 blowing and filling areas, mud blowing construction is carried out on the first blowing and filling area, mud blowing and sand blowing combined construction is carried out on the second blowing and filling area, sand blowing construction is carried out on the third blowing and filling area, and the method for blowing and filling areas and different soil properties is only suitable for typical engineering and has no universality. 2. The method explains that the hydraulic reclamation construction is carried out by uniformly adopting a pipeline conveying arrangement mode. Wherein for the mud blowing construction, the cutter suction dredger is utilized for dredging and blowing at the same time; for the sand blowing construction, the sand taking ship, the sand transporting ship and the sand blowing ship are matched to perform the sand blowing construction, but the control of the flatness in the process of blowing and filling is not mentioned, the blowing and filling construction efficiency is high, but the flatness and the blowing and filling quality in the process of blowing and filling cannot be quantitatively controlled, and the method is unfavorable for the later-stage foundation treatment. 3. The construction method is specially used for hydraulic reclamation construction in the shallow dike region, and the influence on the construction method in poor environments such as water flow and waves is not considered, so that the method is not suitable for large hydraulic reclamation engineering under the severe environmental conditions of open sea areas.
In summary, the current layered hydraulic filling method is rough in the hydraulic filling process, and the steps can be summarized as follows: 1) Partitioning and blocking a construction area; 2) Releasing a sand-water mixture with a fixed flow rate in a moving (water spreader) or stationary (front-stage distributing pipeline) mode through a hydraulic filling device so as to form a sediment deposition layer with a certain thickness; 3) And (5) draining water and settling after the hydraulic filling is completed. The method can not flexibly adjust the blowing and filling concentration, the moving speed and the like in the construction process, and can not respond to the external environment change in time, so that the method can not effectively control the deposition thickness in the blowing and filling process, and is only suitable for near-shore engineering and engineering with good construction environment. For the hydraulic filling engineering under complex environmental conditions, the hydraulic filling flatness and precision effect are improved, and the construction process is required to be further explored and optimized.
Therefore, in order to solve the problems and the demands in the hydraulic filling engineering, a mobile high-precision underwater layered hydraulic filling control construction method is provided, and has important engineering significance and practical value for solving the problems of low flatness and precision caused by external environmental influence in construction, reducing mud and sand flow and reducing later leveling operation difficulty.
Disclosure of Invention
Aiming at the requirements of dredging hydraulic filling engineering on hydraulic filling flatness and construction precision, the invention provides a movable high-precision underwater layered hydraulic filling control construction method suitable for an open water area based on a traditional layered hydraulic filling construction method, and the high-precision control on the thickness and flatness of a sedimentary layer is realized by dynamically adjusting parameters such as hydraulic filling flow rate, concentration, lowering depth, moving speed and the like on the basis of monitoring and analyzing environmental conditions such as construction water depth, water flow, wave and the like, so that the continuous operation construction efficiency is improved, the hydraulic filling flatness is improved, the influence on the surrounding water area environment is reduced, and the engineering quality is ensured.
In order to achieve the above purpose, the technical scheme of the method mainly comprises the following steps:
a movable high-precision underwater layered hydraulic filling control construction method comprises the following implementation steps:
step 1 preparation for construction
And 1.1, collecting and arranging construction data, and confirming basic information such as daily hydraulic reclamation construction workload, hydraulic reclamation soil quality, construction area topography, historical hydrologic weather and the like.
Step 1.2, carrying out zonal and layered planning on the construction area
Dividing a construction area into small grid areas according to the hydraulic filling soil quality, the hydraulic filling capacity of the key hydraulic filling device and the topography of the construction area, and layering according to the hydraulic filling soil quality difference.
Layering follows the following principle: the higher the blowing and filling flatness requirement is, the smaller the design value of the layered blowing and filling thickness is; in the early stage of construction, predicting reasonable layering thickness parameters suitable for the construction soil by means of numerical simulation, test and the like; if there is no relevant data reference, the following recommended values are used:
preferably, the layering thickness of the sand is 0.3-0.8 m, and the larger the particle size is, the larger the layering thickness is;
preferably, the layering thickness of the viscous sediment and the silt is 0.5-1.0 m, and the larger the particle size is, the smaller the layering thickness is.
Preferably, the reference table for each soil layering thickness is shown in table 1.
TABLE 1 reference tables for the layered thickness of each soil
Step 1.3 planning process parameters and moving routes of mobile high-precision underwater layered hydraulic filling equipment
Through theoretical calculation or numerical simulation prediction, technological parameters such as conveying concentration, flow and the like and a moving route of the equipment are planned according to design parameters such as width of a hydraulic filling machine, design hydraulic filling thickness and the like.
Wherein, the setting and the selection of each technological parameter and route are as follows:
1) Slurry delivery flow rate, concentration:
the slurry conveying flow speed and the slurry concentration directly influence the layer thickness and the flatness of the dredger fill, so that the slurry at the outlet of the dredger fill machine can flow out to the bottom bed slowly and in high concentration as much as possible, and the slurry can not cause the clogging of a conveying pipeline. The optimal conveying flow rate and the optimal conveying concentration of different soil properties are different, and the parameter range suitable for the soil properties of the construction can be predicted by numerical simulation, test and other means in the early stage of the construction.
Preferably, the conveying flow rate of the medium coarse sand is 4.5-5.5 m/s, and the concentration is 25-35%.
Delivery flow velocity v for different soil properties x And concentration c x Selected according to the following formula:
v x ＝K 1 v s
c x ＝K 2 c s
in the formula, v s Mean the recommended conveying flow rate (m/s) of the medium coarse sand; k (K) 1 The soil property influence coefficient of the conveying flow rate is shown, and different types of soil properties can be valued by referring to a table 2;
TABLE 2 soil impact coefficient of delivery flow velocity K 1
c s The medium coarse sand recommended conveying concentration; k (K) 2 The transport concentration soil property influence coefficient is shown, and different kinds of soil properties can be taken as values with reference to table 3.
TABLE 3 transport concentration soil influence coefficient K 2
The following factors are considered when adjusting the conveying flow rate and the concentration in the construction process:
in the blowing and filling process, in order to increase the flatness, the blowing and filling flow rate or concentration is reduced;
when the soil property changes to cause great concentration change, the conveying flow rate is increased;
when the construction area monitors that the wind wave becomes large, the conveying flow speed and the conveying concentration are increased.
2) Floating platform moving speed:
the moving speed of the floating platform is a core parameter of the hydraulic filling flatness. In the early stage of construction, reasonable floating platform moving speed parameters suitable for the soil quality of construction are predicted by means of numerical simulation, tests and the like. After receiving the values of the flow velocity meter and the concentration meter, the control system calculates the predicted or designed hydraulic filling thickness and width according to the following specific formulas:
wherein v is ship For the calculated movement speed, units of m/s; q (Q) soil For calculating from the measured values of the flow-rate meter and the concentration meterSilt transport capacity in bit time, unit m 3 /s；W soil The unit is m, which is the layered backfill width; d (D) soil The thickness is backfilled in layers, units of m.
The above formula is the floating platform moving speed under ideal condition (i.e. still water condition), and only the basic factors (i.e. the flow rate of the conveying slurry and the thickness and width of the hydraulic filling) are considered. The hydraulic filling machine is used in actual engineering, particularly under the condition of complex construction environment, the hydraulic filling is moved at the speed, and the flatness and accuracy errors of the soil layer are large. Because the moving speed of the floating platform is equal to the speed of the slurry after the slurry flows out, the paving distance of the slurry after the slurry actually flows out is increased (reduced) under the action of the water flow in the same direction (reverse direction), and the thickness of the hydraulic reclamation is synchronously reduced (increased). In order to solve the problem, the invention provides that, in order to realize accurate control of the hydraulic filling quality, the actual calculation of the motion speed of the floating platform should consider the water flow velocity, i.e. the theoretical calculation value plus or minus the water flow velocity component value in the moving direction of the floating platform, and the specific formula is as follows:
V real ＝V ship ±cosθV′
wherein V is real The actual floating platform travelling speed m/s; v (V) ship Obtaining a moving speed m/s for theoretical calculation; θ is the horizontal angle between the water flow direction and the floating platform moving direction; v' is the flow rate m/s of the water flow.
The moving speed of the floating platform is not more than 0.5m/s, the influence of different soil properties, the same construction conditions and the same slurry conveying amount are further increased and considered, and the different soil properties are caused by different sedimentation speeds and different sedimentation distances, so that the moving speed of the floating platform is properly reduced when the grain size is smaller than fine sand, and the blowing and filling thickness is ensured.
3) The moving route is as follows:
the moving path of the floating platform is designed to slowly and uniformly reciprocate in a serpentine shape. The start and end positions of the path are set in consideration of the time required for the slurry to settle through the outflow port to form a sediment layer, and thus should be set at a settling length greater than that time. According to the result of the early numerical simulation, the sediment layer starts to reach the target blowing and filling thickness and tends to be stable at the position 8m away from the blowing and filling direction under almost any working condition, so that the proposed value of the reserved length of two points is 8m; the distance between the routes is the width of the hydraulic filling machine. When the floating platform is switched to another route, the blowing and filling concentration and the travelling speed are reduced together, so that the flatness of blowing and filling is ensured.
Step 1.4, arranging a blowing and filling height monitoring device in each partition
The device for measuring the blowing and filling elevation is uniformly distributed in each partition so as to complete monitoring work in construction and ensure the blowing and filling quality.
Step 1.5 measuring the sea bed surface of the construction area by scanning, removing or removing the obstacle
Step 2 layered hydraulic filling
Step 2.1 moving the floating platform to the construction target position
The floating platform is connected with the auxiliary ship through a towing rope (cable), and is moved to the initial position of construction by means of the auxiliary ship.
Step 2.2 lowering the hydraulic filling machine
The hydraulic filling machine is gradually lowered to the construction height by controlling the cable laying of the mobile equipment through the height, the lowering height and the stroke of the wave compensator are adjusted according to the data feedback of the monitoring module, the distance between the outlet of the hydraulic filling machine and the bottom bed is always kept consistent, and the sediment loss is reduced.
The initial position of the machine tool is usually determined according to the preset hydraulic filling thickness and hydraulic filling soil quality before construction, and according to the early digital-analog result, the height of the machine tool from the bottom bed is found to have obvious negative correlation with the hydraulic filling thickness and flatness. When the position of the machine tool is 0.5m away from the bottom bed, the thickness of the hydraulic filling can reach 0.85m, but the hydraulic filling flows out of the flow port to prevent the machine tool from moving; when the distance is adjusted to 2.5m, the range of forming the deposited layer becomes large, but the blow-fill thickness can only reach 0.3m, and the flatness is poor. Therefore, the lowering position is particularly important, the flatness and efficiency of the hydraulic filling are affected by the fact that the distance is too large, the movement of the hydraulic filling machine is affected by the fact that the lowering position is less preferred to be 1.0-1.5 m by a plurality of test groups in the early stage.
The following factors should also be considered in setting the implement position during construction:
in the blowing and filling process, when the particle size of the blowing and filling soil is smaller, the position of the machine tool is downwards adjusted;
when the wind wave in the construction area is large, the position of the machine tool is adjusted downwards.
Step 2.3, controlling the floating platform in the subarea to perform movable hydraulic reclamation
The floating platform moves the floating platform to perform layered hydraulic filling through the reeling and unreeling cable according to a preset moving speed and track route. Meanwhile, in the hydraulic filling process, the real-time feedback of the flow speed and the concentration of the actually conveyed slurry and the wave condition of the construction area is utilized by the monitoring module, the cable reeling and unreeling parameters are adjusted by means of the track tracking function, timely deviation correction is realized, and the floating platform is ensured to move according to the planned route all the time.
Step 2.4, detecting the filling quality in the subarea and adjusting the construction process
After each layer of hydraulic filling construction is completed in a partitioning mode, detecting the thickness and uniformity degree of hydraulic filling by using a distributed elevation measuring instrument, and starting the next layer of hydraulic filling operation if the thickness and uniformity degree are qualified; if the hydraulic filling equipment is unqualified, construction parameters such as the moving speed of the hydraulic filling equipment, the flow speed and the concentration of the conveying slurry are reasonably adjusted according to the requirements, and the hydraulic filling equipment is subjected to supplementary blowing:
in order to increase the hydraulic filling thickness, the concentration or the flow rate of the conveying slurry can be properly increased, or the moving speed of the floating platform can be properly reduced; in order to increase the blow-fill flatness, the moving speed of the floating platform or the distance between the blow-fill machine and the bed surface can be properly reduced.
In order to reduce the influence of tide on the hydraulic filling diffusion range, a top flow construction mode is adopted, or the moving speed of the floating platform is properly reduced.
Step 2.5 continuous construction of the next partition
And when the construction partition finishes the construction of a preset layer number, the control system moves the floating platform to the initial target construction position of the next construction partition through the dynamic positioning function, and the steps 2.1-2.4 are repeated.
Step 3 construction ending
And after the blowing and filling of each subarea is finished, the blowing and filling machine tool is retracted to the floating platform. The floating platform is anchored, and the auxiliary ship pulls the floating platform out of the construction area.
In the art, the method of the invention is the first. Therefore, the movable high-precision underwater layered hydraulic filling equipment is constructed.
A mobile high precision underwater layered hydraulic reclamation apparatus comprising: the system comprises a floating platform, a slurry conveying pipeline, a movable positioning winch, a layered hydraulic reclamation module, a monitoring module and a control module.
The floating platform is formed by effectively connecting a plurality of floating boxes, and is used as a carrying platform of the movable high-precision underwater layered hydraulic filling equipment.
Rotatable joints are arranged on the left side and the right side of the middle part of the floating platform; the slurry conveying pipeline is erected on the floating platform, the input port is connected with the slurry conveying pipeline of the external sand supply ship through a rotatable joint at one side, and the output port is connected with the hydraulic filling machine pipeline through a rotatable joint at the other side;
the movable positioning winch is a hydraulic winch, 4 hydraulic winches are connected with anchors through steel wire ropes, the movable positioning winch is arranged at four corners of the upper end of the floating platform, and the floating platform is moved by winding and unwinding the steel wire ropes. Each winch may also be provided with a locator providing anchor data.
The layered hydraulic filling module comprises hydraulic filling machines, a portal frame, height control mobile equipment and a wave compensator.
The hydraulic filling machine is arranged at the tail part of the floating platform and is connected with the slurry conveying pipeline through a flange;
the portal frame is arranged at the tail part of the floating platform;
the hydraulic filling machine comprises: the device comprises a transition section mud conveying pipeline, a diffusion section and an outflow section; the upper end of the diffusion section is connected with a slurry conveying pipeline on the floating platform through a transition section slurry conveying pipeline, and the lower end of the diffusion section is fixedly connected with the outflow section. The section of the mud conveying pipeline of the transition section is trapezoidal; the cross-sectional area of the diffusion section is gradually increased from top to bottom, so that the effect of reducing the flow velocity of slurry and fully diffusing is achieved, and the flow velocity of each outflow port of the outflow section is further uniform; the outflow section is a pipe barrel with a plurality of outflow openings.
The height control mobile equipment is arranged on the portal frame and comprises a hydraulic lifting winch and a steel wire rope;
the hydraulic lifting winch is connected with the hydraulic filling machine through a steel wire rope, and the hydraulic filling machine is lowered to a proper working height through the steel wire rope according to different seabed depths.
The wave compensator is arranged on the portal frame and is a liquid-gas energy accumulator, and an elastic device (a hydraulic cylinder plunger rod) of the energy accumulator is connected with the hydraulic lifting winch through a plurality of pulley mechanisms. By adjusting the pressure (stroke) of the wave compensator, the distance between the outlet of the hydraulic filling machine and the bottom bed can be always kept consistent under the condition of stormy waves.
The monitoring module includes: the system comprises a wind wave flow environment monitoring sensor, a pipeline mud conveying flow rate sensor and a sediment concentration sensor; the real-time monitoring of relevant elements in the construction process is realized, and relevant data is sent to the control module through the transmission cable. The transmission data of the monitoring module comprises: pipeline conveying flow rate, pipeline conveying concentration, construction water depth, wind speed and direction, wave factors, flow speed and direction and the like. The pipeline mud conveying flow rate sensor and the sediment concentration sensor are arranged on a rotary joint connected with a mud conveying pipeline of the sand supply ship, and the stormy wave environment monitoring sensor is arranged on the floating platform.
The control module includes: frequency converter, motor, PLC and computer system.
The computer system is connected with the PLC, and the output of the frequency converter is connected with the motor;
the PLC input end is connected with the monitoring module and is used for receiving pipeline conveying flow speed, pipeline conveying concentration, construction water depth, wind speed and direction, wave factors and flow speed and direction data and providing the data for the computer system;
the output end of the computer system is connected with the frequency converter through the PLC and used for controlling the rotating speed of the motor;
the motor is connected with the movable positioning winch;
after the computer system receives the related data of the monitoring module, calculating key construction parameters according to the set construction target value of the hydraulic filling thickness and the flatness, wherein the key construction parameters comprise: and calculating to obtain sediment quantity, preset paving thickness, width of the hydraulic filling device and hydraulic filling variable quantity generated by environmental elements by using the pipeline conveying flow rate and the conveying concentration. Calculating the moving speed of the floating platform according to the key parameters, and then calculating the required speed of each winch according to the moving speed of the floating platform and the anchor position; the computer system generates winch control signals, and the rotating speed of the motor is controlled through the frequency converter to drive the movable positioning winch to move the floating platform according to a preset track and speed.
The control system also has the functions of dynamic positioning and track tracking, so that the starting position of the floating platform is ensured to be accurate and always move on a preset track.
The floating platform moving and positioning auxiliary ship can be a tug, and the auxiliary ship is connected with the floating platform through a towing rope to help the floating platform to initially position and move in a large range.
Drawings
FIG. 1 is a flow chart of the construction method of the present invention
FIG. 2 is a plan view of the movable high-precision underwater layered hydraulic filling equipment of the present invention
FIG. 3 is a schematic diagram of the construction of the movable high-precision underwater layered hydraulic filling equipment of the present invention
FIG. 4 is a schematic diagram showing the decomposition of the actual floating platform movement speed
FIG. 5 is a graph showing the results of one-shot blow-fill thickness test in this example
FIG. 6 is a block diagram of a layered reclamation apparatus according to the present invention
Reference numerals illustrate:
1-a rotary joint; 2-mobile positioning winch (with GPS); 3-hydraulic filling machine; 4-a portal; 5-environmental data measuring instruments (including 10, 11); 6-measuring the flow rate and concentration of the conveyed slurry; 7-a control module;
8-height control of the mobile device; 9-wave compensator;
10-a high-definition camera and an anemometer; 11-wave measuring sensor.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way.
In the embodiment, the wind wave water flowing groove is used for carrying out a hydraulic filling experiment, and the test platform is designed according to the relevant regulations of the gravity similarity law.
The total hydraulic filling flatness requirement is that the superfilling average height is not larger than 0.2m when the average height after hydraulic filling is not allowed to be lower than the specified hydraulic filling average height according to the dredging and hydraulic filling engineering design specification (JTS 181-5-2012). When positive and negative errors (superfilling or underfilling) are allowed for the average height after blow-filling, the underfilling average height must not be greater than 0.15m. The blow fill flatness requirements for the various cases are shown in Table 4.
Table 4 requirement for a blow fill height of Cheng Pingzheng degrees
The length scale of the model test was λ=1:10. In the example, the prototype size of the hydraulic filling machine is 8m long, the inner diameter of the hydraulic filling machine is 0.8m, the front end of the hydraulic filling machine is provided with 10 outflow ports with the inner diameter of 0.3m and the circular section, and the length of the connection opening of the rear end and the diffusion section is 6.4 m. 4 flow dividing plates are arranged in the diffusion section so as to achieve the effect of homogenizing the slurry flow at each outlet and improve the evenness of hydraulic filling. The hydraulic filling machine is arranged above the water tank through the trolley frame, the hydraulic filling machine is transversely and longitudinally moved through the trolley track, and the wave height of an experimental area in the water tank is set to be 1m. The initial parameter of the blowing and filling device is set to be the moving speed of 0.2m/s and the blowing and filling flow rate of 2m 3 And/s, concentration 20%. During the period, the diffusion effect of water flow in the water tank on mud is detected to be larger, the flatness of a deposited layer is low, the hydraulic filling concentration is properly increased to 25%, and the flow is increased to 2.5m 3 The hydraulic filling effect is obviously improved, the one-time hydraulic filling deposition effect is shown in figure 5, the uniformity is better, and the average thickness deviation of the hydraulic filling device along the direction of the hydraulic filling device and the travelling direction is calculated to be 0.06 m and 0.08m respectively, compared with the hydraulic filling deviceThe deviation is not more than 0.15m when the average height after the hydraulic filling is allowed to have positive and negative errors (superfilling or underfilling) specified in dredging and hydraulic filling engineering design specifications, the hydraulic filling effect of the method of the invention shows superiority, and the deviation is reduced by 46%. Meanwhile, the hydraulic filling effect of the construction method under different flow rates, different concentrations and different water flow rates is simulated, the deviation of the hydraulic filling thickness is controlled within 0.12m, and the effect is good.
In conclusion, the construction method can flexibly adjust the process parameters through real-time data feedback, can remarkably improve the hydraulic filling accuracy and flatness, and can achieve accurate hydraulic filling under extreme weather conditions in actual engineering.
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the invention.
Claims (2)
1. The mobile high-precision underwater layered hydraulic reclamation control construction method is characterized by comprising the following steps of:
step 1 preparation for construction
Step 1.1, collecting and arranging construction data, and confirming daily hydraulic filling construction workload, hydraulic filling soil quality, construction area topography and historical hydrological meteorological foundation information;
step 1.2, carrying out zonal and layered planning on the construction area
Dividing a construction area into small grid areas according to the hydraulic filling soil quality, the hydraulic filling capacity of a key hydraulic filling device and the topography of the construction area, and layering according to the hydraulic filling soil quality difference;
step 1.3 planning process parameters and moving routes of mobile high-precision underwater layered hydraulic filling equipment
Through theoretical calculation or numerical simulation prediction means, the conveying concentration, flow technological parameters and a moving route of the equipment are planned according to the width of the hydraulic filling machine and design parameters of the hydraulic filling thickness;
high accuracy is layer-by-layer hydraulic reclamation equipment under water includes: the device comprises a floating platform, a slurry conveying pipeline, a movable positioning winch, a layered hydraulic reclamation module, a monitoring module and a control module;
the floating platform is formed by effectively connecting a plurality of floating boxes to form a floating integral structure, and the floating integral structure is used as a carrying platform of mobile high-precision underwater layered hydraulic filling equipment;
rotatable joints are arranged on the left side and the right side of the middle part of the floating platform; the slurry conveying pipeline is erected on the floating platform, the input port is connected with the slurry conveying pipeline of the external sand supply ship through a rotatable joint at one side, and the output port is connected with the hydraulic filling machine pipeline through a rotatable joint at the other side;
the movable positioning winches are hydraulic winches, are connected with anchors through steel wire ropes, are arranged at four corners of the upper end of the floating platform, and move the floating platform by winding and unwinding the steel wire ropes; each winch is also provided with a locator for providing anchor position data;
the layered hydraulic filling module comprises hydraulic filling machines, a portal frame, height control mobile equipment and a wave compensator;
the hydraulic filling machine is arranged at the tail part of the floating platform and is connected with the slurry conveying pipeline through a flange;
the portal frame is arranged at the tail part of the floating platform;
the height control mobile equipment is arranged on the portal frame and comprises a hydraulic lifting winch and a steel wire rope;
the hydraulic lifting winch is connected with the hydraulic filling machine through a steel wire rope, and the hydraulic filling machine is lowered to a proper working height through the steel wire rope according to different seabed depths;
the wave compensator is arranged on the portal frame, so that the distance between the outlet of the hydraulic filling machine and the bottom bed is always kept consistent under the condition of wind and waves;
the monitoring module includes: the system comprises a wind wave flow environment monitoring sensor, a pipeline mud conveying flow rate sensor and a sediment concentration sensor; the real-time monitoring of relevant elements in the construction process is realized, and relevant data are sent to the control module through the transmission cable; the transmission data of the monitoring module comprises: pipeline conveying flow speed, pipeline conveying concentration, construction water depth, wind speed and direction, wave factors and flow speed and direction; the pipeline mud conveying flow rate sensor and the sediment concentration sensor are arranged on a rotatable joint connected with a mud conveying pipeline of the sand supply ship, and the stormy wave environment monitoring sensor is arranged on the floating platform;
the control module includes: the frequency converter, the motor, the PLC and the computer system;
the computer system is connected with the PLC, and the output end of the frequency converter is connected with the motor;
the PLC input end is connected with the monitoring module and is used for receiving pipeline conveying flow speed, pipeline conveying concentration, construction water depth, wind speed and direction, wave factors and flow speed and direction data and providing the data for the computer system;
the output end of the computer system is connected with the frequency converter through the PLC and used for controlling the rotating speed of the motor;
the motor is connected with the movable positioning winch;
after the computer system receives the related data of the monitoring module, calculating key construction parameters according to the set construction target value of the hydraulic filling thickness and the flatness, wherein the key construction parameters comprise: calculating to obtain sediment quantity, preset paving thickness, width of a hydraulic filling device and hydraulic filling variable quantity generated by environmental elements according to pipeline conveying flow rate and conveying concentration; calculating the moving speed of the floating platform according to the key parameters, and then calculating the required speed of each winch according to the moving speed of the floating platform and the anchor position; the computer system generates winch control signals, and the rotating speed of the motor is controlled through the frequency converter to drive the movable positioning winch to move the floating platform according to a preset track and speed;
the control module also has the functions of dynamic positioning and track tracking, so that the starting position of the floating platform is ensured to be accurate and always move on a preset track;
the hydraulic filling machine comprises: the device comprises a transition section mud conveying pipeline, a diffusion section and an outflow section; the upper end of the diffusion section is connected with a slurry conveying pipeline on the floating platform through a transition section slurry conveying pipeline, and the lower end of the diffusion section is fixedly connected with the outflow section; the section of the mud conveying pipeline of the transition section is trapezoidal; the cross-sectional area of the diffusion section is gradually increased from top to bottom, so that the effect of reducing the flow velocity of slurry and fully diffusing is achieved, and the flow velocity of each outflow port of the outflow section is further uniform; the outflow section is a pipe barrel with a plurality of outflow openings;
the wave compensator is arranged on the portal frame and is a liquid-gas energy accumulator, and an elastic device of the energy accumulator, namely a hydraulic cylinder plunger rod, is connected with the hydraulic lifting winch through a plurality of pulley mechanisms; the distance between the outlet of the hydraulic filling machine and the bottom bed is always kept consistent under the condition of stormy waves by adjusting the stroke of the wave compensator;
the setting and the selection of each technological parameter and route are based on the following steps:
1) Slurry delivery flow rate, concentration:
the slurry conveying flow rate and the slurry concentration directly influence the layer thickness and the flatness of the dredger fill, so that the slurry at the outlet of the dredger fill machine is controlled to slowly flow out to the bottom bed in a high concentration manner and the conveying pipeline is not blocked; the conveying flow rate and the concentration of different soil properties are different, and the method is suitable for the parameter range of construction soil properties:
the conveying flow rate of the medium coarse sand is 4.5-5.5 m/s, and the concentration is 25-35%;
delivery flow velocity v for different soil properties x And concentration c x Selected according to the following formula:
v x ＝K 1 v s
c x ＝K 2 c s
in the formula, v s The medium coarse sand conveying flow rate is expressed as m/s;
K 1 the soil property influence coefficient of the conveying flow velocity is shown, and the soil property reference values of different types are respectively as follows: k of silt 1 K of silt of 0.5 1 K of fine sand of 0.6 1 0.8, K of gravel 1 1.1;
c s mean the concentration of medium coarse sand;
K 2 the soil quality reference values of different types are respectively as follows: k of silt, silt 2 K of silt of 1.6 2 K of fine sand of 1.4 2 1.2, K of gravel 2 0.9;
the following factors are considered when adjusting the conveying flow rate and the concentration in the construction process:
in the blowing and filling process, in order to increase the flatness, the blowing and filling flow rate or concentration is reduced;
when the soil property changes to cause great concentration change, the conveying flow rate is increased;
when the construction area monitors that the wind wave becomes large, the conveying flow speed and the conveying concentration are increased;
2) Floating platform moving speed:
the moving speed of the floating platform is a core parameter of the hydraulic filling flatness; in the early stage of construction, predicting reasonable floating platform moving speed parameters suitable for the construction soil by utilizing numerical simulation and test means; after receiving the values of the flow velocity meter and the concentration meter, the control module calculates the predicted or designed blowing and filling thickness and width according to the following specific formula:
wherein v is ship For the calculated movement speed, units of m/s; q (Q) soil For the sediment transport quantity in unit time calculated according to the measured values of the flow velocity meter and the concentration meter, the unit m 3 /s；W soil The unit is m, which is the layered backfill width; d (D) soil The thickness of the layered backfill is the unit m;
the formula is the floating platform moving speed under ideal state, namely under the condition of still water; in order to realize accurate control of the hydraulic filling quality, the motion speed of the floating platform is calculated to be a theoretical calculated value plus or minus a water flow velocity component value in the moving direction of the floating platform, and the specific formula is as follows:
V real ＝V ship ±cosθV′
wherein V is real The actual floating platform travelling speed m/s; v (V) ship Obtaining a moving speed m/s for theoretical calculation; θ is the horizontal angle between the water flow direction and the floating platform moving direction; v' is the flow velocity m/s of the water flow;
the moving speed of the floating platform is not more than 0.5m/s, the influence of different soil properties, the same construction conditions and the same slurry conveying amount are further increased and considered, the different soil properties are caused by different sedimentation speeds and different sedimentation distances, the sedimentation thicknesses are different, and when the particle size is smaller than fine sand, the moving speed of the floating platform is reduced, and the blowing-filling thickness is ensured;
3) The moving route is as follows:
the moving path of the floating platform is designed to slowly and uniformly reciprocate in a serpentine shape; setting the starting point and the end point of the path, and giving a reserved length value of 8m for the two points; the distance between the routes is the width of the hydraulic filling machine; when the floating platform is switched to another route, the hydraulic filling concentration and the travelling speed are reduced together, so that the flatness of hydraulic filling is ensured;
step 1.4, arranging a blowing and filling height monitoring device in each partition
Uniformly distributing devices for measuring the blowing and filling elevation in each partition so as to complete monitoring work in construction and ensure blowing and filling quality;
step 1.5, the sea bed surface of the construction area is scanned and measured, and the obstacles are removed
Step 2 layered hydraulic filling
Step 2.1 moving the floating platform to the construction target position
The floating platform is connected with the auxiliary ship through a towing belt and moves to the initial construction position by means of the auxiliary ship;
step 2.2 lowering the hydraulic filling machine
Gradually lowering the hydraulic filling machine to the construction height through the cable laying of the height control mobile equipment, adjusting the lowering height and the stroke of the wave compensator according to the data feedback of the monitoring module, ensuring that the distance between the outlet of the hydraulic filling machine and the bottom bed is always consistent, and reducing sediment loss; the initial position of the machine tool is determined according to the preset hydraulic filling thickness and hydraulic filling soil quality before construction, and according to the early digital-analog result, the height of the machine tool from the bottom bed, the hydraulic filling thickness and the flatness are found to show obvious negative correlation; the lowering position is set between 1.0 and 1.5 m;
setting the positions of machines in the construction process: in the blowing and filling process, when the particle size of the blowing and filling soil is smaller, the position of the machine tool is downwards adjusted; when the wind wave in the construction area is large, the position of the machine tool is downwards adjusted;
step 2.3, controlling the floating platform in the subarea to perform movable hydraulic reclamation
The floating platform moves the floating platform to perform layered hydraulic filling through a retractable cable according to a preset moving speed and a track route; meanwhile, in the hydraulic filling process, the real-time feedback of the flow speed and the concentration of the actually conveyed slurry and the wave condition of the construction area is utilized by the monitoring module, the parameters of the cable are regulated by means of the track tracking function, the timely deviation correction is realized, and the floating platform is ensured to always move according to the planned route;
step 2.4, detecting the filling quality in the subarea and adjusting the construction process
After each layer of hydraulic filling construction is completed in a partitioning mode, detecting the thickness and uniformity degree of hydraulic filling by using a distributed elevation measuring instrument, and starting the next layer of hydraulic filling operation if the thickness and uniformity degree are qualified; if the hydraulic filling equipment is unqualified, reasonably adjusting the moving speed of the hydraulic filling equipment, the flow speed of the conveying slurry and the concentration construction parameters according to the requirements, and carrying out supplementary blowing:
to increase the blow-fill thickness, either the concentration or flow rate of the transported slurry is increased, or the speed of movement of the floating platform is decreased; in order to increase the hydraulic filling flatness, the moving speed of the floating platform or the distance between the hydraulic filling machine and the bed surface is reduced;
in order to reduce the influence of tide on the hydraulic filling diffusion range, a top flow construction mode is adopted, or the moving speed of the floating platform is reduced;
step 2.5 continuous construction of the next partition
When the construction partition finishes the construction of a preset layer number, the control module moves the floating platform to an initial target construction position of the next construction partition through a dynamic positioning function, and the steps 2.1-2.4 are repeated;
step 3 construction ending
After the blowing and filling of each subarea is finished, the blowing and filling machine tool is retracted to the floating platform; the floating platform is anchored, and the auxiliary ship pulls the floating platform out of the construction area.
2. The mobile high-precision underwater layered hydraulic reclamation control construction method as recited in claim 1, wherein in the step 1.2, layering follows the following principle: the higher the blowing and filling flatness requirement is, the smaller the design value of the layered blowing and filling thickness is;
in the early stage of construction, predicting reasonable layering thickness parameters suitable for the construction soil by utilizing numerical simulation and test means;
the layering thickness of the sand is 0.3-0.8 m, and the larger the particle size is, the larger the layering thickness is; the layering thickness of the silt and the fine sand is 0.3-0.6 m, and the layering thickness of the medium sand, the coarse sand and the gravel is 0.3-0.8 m;
the layering thickness of clay and silt is 0.5-1.0 m, and the larger the particle size is, the smaller the layering thickness is.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210212509.7A CN114592482B (en) | 2022-03-04 | 2022-03-04 | Mobile high-precision underwater layered hydraulic filling control construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210212509.7A CN114592482B (en) | 2022-03-04 | 2022-03-04 | Mobile high-precision underwater layered hydraulic filling control construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114592482A CN114592482A (en) | 2022-06-07 |
| CN114592482B true CN114592482B (en) | 2024-01-19 |
Family
ID=81807586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210212509.7A Active CN114592482B (en) | 2022-03-04 | 2022-03-04 | Mobile high-precision underwater layered hydraulic filling control construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114592482B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010028547A1 (en) * | 2008-09-11 | 2010-03-18 | 中国科学院武汉岩土力学研究所 | Stereoscopic network drainage device for accelerating water drainage consolidation velocity of hydraulic mud fill |
| CN107761670A (en) * | 2017-11-07 | 2018-03-06 | 南京盼源工程技术有限公司 | Stockyard dischargeable capacity method for optimally controlling based on the control of dredged mud original state |
| CN109750698A (en) * | 2019-03-12 | 2019-05-14 | 中交天津航道局有限公司 | A kind of traversing automatic controller of cutter suction dredger |
| CN209798867U (en) * | 2019-01-17 | 2019-12-17 | 中交天航滨海环保浚航工程有限公司 | Pipeline system for dredging layered hydraulic fill |
| CN110674980A (en) * | 2019-09-12 | 2020-01-10 | 中交疏浚技术装备国家工程研究中心有限公司 | Real-time wave prediction method for engineering ship |
-
2022
- 2022-03-04 CN CN202210212509.7A patent/CN114592482B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010028547A1 (en) * | 2008-09-11 | 2010-03-18 | 中国科学院武汉岩土力学研究所 | Stereoscopic network drainage device for accelerating water drainage consolidation velocity of hydraulic mud fill |
| CN107761670A (en) * | 2017-11-07 | 2018-03-06 | 南京盼源工程技术有限公司 | Stockyard dischargeable capacity method for optimally controlling based on the control of dredged mud original state |
| CN209798867U (en) * | 2019-01-17 | 2019-12-17 | 中交天航滨海环保浚航工程有限公司 | Pipeline system for dredging layered hydraulic fill |
| CN109750698A (en) * | 2019-03-12 | 2019-05-14 | 中交天津航道局有限公司 | A kind of traversing automatic controller of cutter suction dredger |
| CN110674980A (en) * | 2019-09-12 | 2020-01-10 | 中交疏浚技术装备国家工程研究中心有限公司 | Real-time wave prediction method for engineering ship |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114592482A (en) | 2022-06-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105672195B (en) | Suction Dredging Construction engineering method is twisted under a kind of urban ecology urban river water | |
| CN105178288A (en) | Construction method of underground continuous wall below viaduct | |
| CN102268871B (en) | Construction method of turnover platform for underwater pile foundation of bridge | |
| CN101408027B (en) | Construction method of large-scale steel float tank on soft soil foundation | |
| CN109898514A (en) | The continuous leveling ship of floating underwater rubble bedding | |
| CN109458184A (en) | Shallow Section shield construction method under lake | |
| CN107956246A (en) | A kind of large-scale inspection shaft segmentation prefabricating construction method of installation | |
| CN109853575A (en) | Floating underwater rubble base bed flattening ship | |
| CN102561379A (en) | Novel bridge installation foundation and construction method thereof | |
| CN114592482B (en) | Mobile high-precision underwater layered hydraulic filling control construction method | |
| CN209603143U (en) | The continuous leveling ship of floating underwater rubble bedding | |
| CN107587497B (en) | A method of improving hydraulic reclamation flatness | |
| CN107489161A (en) | Immersed tube joint basis post-grouting method | |
| CN104790401B (en) | A kind of building dredging mud foundation ditch embankment material spray stirs constructing device | |
| CN114232689B (en) | Leveling method for immersed tube tunnel full-floating foundation bed | |
| CN210288280U (en) | Open type cofferdam-free coral sand island reef reclamation system | |
| CN112487529B (en) | Pipe joint bottom setting and depositing method | |
| CN107145688B (en) | Multi-factor composite early warning and forecasting method for desilting of offshore large immersed tube foundation bed | |
| CN115627788A (en) | TRD (blast furnace pressure recovery device) reinforcement construction method for metro section connection channel | |
| CN113585345B (en) | Offshore inland river junction area immersed tunnel construction process | |
| CN109898557B (en) | Laying method of underwater broken stone foundation bed | |
| CN110004933B (en) | Underwater broken stone foundation bed laying device and method | |
| CN113186876A (en) | Construction method of floating dock anchoring facility | |
| CN113373867A (en) | Coastline soft foundation solidified soil structure and process | |
| CN113073642A (en) | Wind power single-pile sludge in-situ curing construction process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |