CN109295985A - Campshed can be recycled to the design and construction method of support supporting construction in a kind of flexible compound assembled - Google Patents
Campshed can be recycled to the design and construction method of support supporting construction in a kind of flexible compound assembled Download PDFInfo
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- CN109295985A CN109295985A CN201811095701.2A CN201811095701A CN109295985A CN 109295985 A CN109295985 A CN 109295985A CN 201811095701 A CN201811095701 A CN 201811095701A CN 109295985 A CN109295985 A CN 109295985A
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- crown beam
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
- E02D9/02—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof by withdrawing
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Paleontology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The present invention relates to a kind of flexible compound assembleds, and campshed can be recycled to the design and construction method of support supporting construction, includes the following steps: the construction of (one) campshed；(2) fashioned iron crown beam and to support install；(3) earthwork stage excavation and steel facing installation；(4) waist rail and to support install；(5) successively vertical layered excavation section by section, repeat step (3), (four), choose slot mounting substrate coupling beam and to support structure, when necessary dismountable waist rail and to support structure, i.e. construction of the campshed to support supporting structure system can be recycled in completion flexible compound assembled.The supporting structure system that the present invention constructs has many advantages, such as safe and reliable, quick construction, recyclable recycling, economic and environment-friendly index is superior, for the projects such as foundation pit, side slope, Subway station, municipal pipeline excavation supporting provide accessible operating space inside safe and reliable, foundation pit, can high efficiente callback recycling, economic finger ring protect and mark superior new method, development and application prospect is considerable.
Description
Technical field
The invention belongs to the excavation supporting technical fields of the infrastructure such as building, water conservancy, mine, municipal administration, and in particular to base
Campshed can be recycled to support supporting construction in a kind of flexible compound assembled that the projects such as hole, side slope, Subway station, municipal pipeline are excavated
Design and construction method.
Background technique
Since founding of New, the infrastructure constructions such as China's building, water conservancy, mine, municipal administration achieve highly visible
Achievement.Durings underground space development, mining mineral resource etc., when facing complicated geological conditions, generally require
Take slope retaining or pattern foundation pit supporting structure measure, with guarantee underground engineering construction process and during this surrounding enviroment safety and stability.
Along with the development of Geotechnical Engineering, machinery and civil engineering material etc., slope retaining and Base hole supporting technology are had
Effect development correspondingly occurs using traditional building materials such as sandstone, cement, reinforcing bar, concrete as the soil nail wall of main structure body, again
Close the supporting structure systems such as soil nail wall, diaphram wall, campshed supporting, pile-anchor retaining.It at the same time, is control underground water to branch
The influence of protection structure and underground engineering construction need to also consider that water-stop curtain is arranged in support system or be aided with dewatering measure.
Especially level of ground water is higher, the softer easy disturbance of side wall soil layer in the case where, pattern foundation pit supporting structure, which must be taken into consideration, takes precipitation or only
The groundwater treatments measure such as water.In comparison, sealing mode is taken, more can guarantee surrounding building, structures and underground utilities
Safety, be that the creep of the side wall soil body induces the things such as the differential settlement of periphery surface cracks and building in more situations
Therefore.Theoretically, enough safety measures are taken, it is ensured that side slope or deep pit monitor under any need state.But from foundation pit
From the point of view of the essence of supporting, as the safety of main structure construction under protecting field and surrounding enviroment, and take provisional supporting and retaining system,
It reinforces, the measure of protection and Groundwater Control, and foundation pit is deeper, surrounding enviroment are more complicated, the cost of base pit engineering is also higher,
More important point is that the service life of foundation pit is usually no more than 2 years, in underground after main structure construction i.e. discarded or
Person removes, it can be seen that, compared with major project, the cost of base pit engineering is with regard to very expensive.Even if a small number of foundation pits at this stage
Using supporting construction and the structure-integrated design of underground main body, in the case, the construction efficiency of subsequent foundation engineering drops
Low, cost of labor increases severely and the potential risk of subsequent construction seam leakage is also very high, and is poured by construction technology and concrete
The processing of subsequent diaphram wall body weak part caused by building, perpendicularity deviation is also very difficult.
SMW engineering method as one of diaphram wall form, with cement be at wall main material, after use,
The fashioned iron being wherein inserted into afterwards can only be recycled, the rate of recovery is low, and inner support, anchor cable must be cooperated to use.Inner support, anchor cable
Dismounting, cost is very high, and brings very big adverse effect to the construction of subsequent construction of underground structure.In addition, reinforcing bar is mixed
Solidifying soil diaphram wall is as the most common form, and not only cost is high, and does not have any recovery value substantially.
In the construction material currently generallyd use, the processing performance of steel is preferable, excellent in mechanical performance, in civil engineering
In be widely used.At the same time, high polymer grouting technology is that the foundation that grows up the 1970s is fast
Fast reinforcement technique.Body of the technology by injecting high polymer material into ground, after being chemically reacted using high polymer material
Product expands rapidly and cured characteristic, achievees the purpose that consolidated subsoil, filling is come to nothing or lift structure decanting zone.This patent is based on
The characteristic research of the mechanics of steel and processable characteristic and high polymer grouting technology, on the Research foundation of this team early period, packet
Include the basis that the number applied is the patents such as 201310123667.6,201610078440.8 and 201610077784.7
On, and make full use of steel support unit structure indefectible, the features such as recovery efficiency is high, and can provide accessible behaviour inside foundation pit
Make space, it is building, water that having invented a kind of flexible compound assembled, which can be recycled campshed to the design and construction method of support supporting construction,
The excavation of the projects such as foundation pit, side slope, Subway station, the municipal pipeline of the industries such as benefit, mine, municipal administration provides completely new supporting skill
Art, main campshed, crown beam, waist rail, substrate coupling beam and is processed the components such as support using prefabrication, both with recovery value
The features such as high and reusable.The country, which yet there are no, at present can be recycled campshed to support supporting construction about flexible compound assembled
Relevant report.
Summary of the invention
Present invention branch for growth requirements of projects excavation supporting such as foundation pit, side slope, Subway station, municipal pipelines and at present
Deficiency existing for shield technology, having invented a kind of flexible compound assembled can be recycled campshed to the design and construction side of support supporting construction
Method.The present invention is the essence from base pit engineering, is put forward for the first time the design concept of flexible compound, and in foundation pit supporting construction body
The thought of mechanical accurate manufacture, assembled in situ standardized production is introduced in system, and based on earth pressure theory research and development.According to
After the work of related data complete design, prefabrication processes corresponding steel campshed, crown beam, waist rail, substrate coupling beam and to support
Equal components, the assembly for carrying out live supporting construction in conjunction with high polymer grouting technology are constructed, after construction, can be provided accessible
Construction space, and recycling campshed can be removed to support supporting construction, reusable and standardized designs apply after foundation pit backfill
Work；In construction technology, by the plane positioning leveling block of independent design, which cuts according to campshed
Face shape is designed, and is just met for the latter from being wherein passed to, and itself has self levelling function, corrects by plane positioning
The center that platform is previously set is overlapped with the center of campshed respectively, and the construction of the realization campshed of energy high precision needs, and will be flexible
Combined assembled recyclable campshed improves the positioning accuracy of support supporting construction and controls in millimeter rank, while giving full play to steel
The excellent mechanics of material and processing performance, the rapid expanding of high polymer material, barrier characteristics and accurate installation technology are realized
Purpose of design of the invention.Quickly the projects such as foundation pit, side slope, Subway station, municipal pipeline groove can be carried out using the invention
Excavation supporting after use, is recycled by the high efficiency to supporting construction, can greatly reduce pattern foundation pit supporting structure cost, really
Mission of the base pit engineering as a temporary security measures is realized and completed in meaning, is foundation pit, side slope, Subway station, city
The excavation supporting of the projects such as political affairs pipeline provides technologically advanced, safe and reliable, the superior new method of economic indicator, nothing inside foundation pit
The speed of application of underground structure is accelerated in barrier operations space.
The technical scheme adopted by the invention is as follows:
Campshed can be recycled to the design and construction method of support supporting construction in a kind of flexible compound assembled, work progress specifically include as
Lower step:
(1) construction of campshed, the specific steps are as follows:
(1) it campshed component processing: according to design calculation result, is prefabricated in the factory the row of processing using steel by certain size
Stake carries out crown beam installation fixation hole, recycling hole for hoist, waist rail mounting hole, substrate coupling beam in the top of campshed, wall corresponding position
The processing of mounting hole；
(2) campshed drilling construction: stringent in work progress using the pile hole construction of drilling machine progress campshed in specified ground location
Control pore-forming accuracy, including plane positioning precision and stake holes vertical precision；
(3) it is implanted into campshed component: utilizing crane and plane positioning leveling block, accurately by the campshed processed implantation determination
Stake holes position meets the positioning accuracy request of design；
(4) stake holes backfills: it is backfilled using the material for being suitble to stratum to need, to guarantee the stabilization of the campshed member perimeter soil body,
Backfilling material can be low-grade concrete, sandstone and high molecular material；
(2) fashioned iron crown beam and to support install, the specific steps are as follows:
(1) fashioned iron crown beam and the processing to support: designing according to foundation pit shape and piling structure, it is accurate process stake top fashioned iron crown beam and
Punching processing to the mounting hole of support, when necessary using mechanical stretch bending processing technology, to facilitate fashioned iron crown beam, to support and campshed
It is bolted；
(2) fashioned iron crown beam and the splicing installation to support: after campshed is constructed, before excavation of foundation pit, first using level to type
Steel crown beam and the absolute altitude of support is controlled, and then its position is carried out with crane tentatively fixed, finally uses high-strength bolt
It is fixedly connected by fashioned iron crown beam, to support and campshed top；
(3) earthwork stage excavation and steel facing installation, steps are as follows for Specific construction:
(1) earthwork inside layer and section excavation pit, every layer of cutting depth 1m, layer and section installation are carried out using manual method
Clear up the soil body near fashioned iron campshed；
(2) high polymer material is hardened in injection rapid condensation after campshed surface installation steel facing and plate after the cleaning, is formed certain
The thin layer high polymer surface layer structure of intensity；
(4) support is installed in waist rail and conversion, and steps are as follows for Specific construction:
(1) according to calculated result, waist rail is first installed to the position of support needing to be arranged conversion, waist rail and campshed use bolt
Connection；
(2) connection to support and between campshed, waist rail is converted to be fixed with bolts；
(5) successively vertical layered excavation section by section, repeats step (3), (four) choose slot mounting substrate coupling beam and substrate to support structure,
Entirety is excavated to substrate, and to support structure, i.e. campshed can be recycled in completion flexible compound assembled for dismountable waist rail and conversion when necessary
Construction to support supporting structure system.
It further include completing in supporting construction using after function, as foundation pit backfill can have the carry out recovery operation of step,
Specific recycling step is as follows:
(1) with the progress of backfilling working, first recycling substrate coupling beam and lower part steel facing；
(2) it is backfilled to waist rail position, starts to recycle waist rail and conversion to support；
(3) backfilling working and steel facing, waist rail and conversion to the recovery operation of support successively alternately；
(4) stake top crown beam and the dismounting recycling to support；
(5) crane cooperates the extraction of hydraulic jack pair campshed to recycle, and backfills stake holes.
Compared with existing support technology, the invention has the following advantages that
(1) essence for embodying base pit engineering well using function for the flexible compound supporting construction that the art of this patent proposes is special
Point: safe and reliable, technologically advanced, economic indicator is superior.Base pit engineering as guarantee underground main structure construction and take
Temporary security measures are securely and reliably primary factors, and technologically advanced, economic indicator is superior to be to discriminate between and evaluation supporting construction superiority and inferiority
Safe criterion moreover under conditions of not using anchor pole, pass through support replacement and setting substrate coupling beam and to support, it is possible to provide
Accessible operating space, accelerates the speed of application of underground structure, is the maximum feature of the art of this patent inside foundation pit.
(2) material property plays perfect, sufficiently by the mechanics of steel, processing performance and steel campshed, crown beam, waist rail, base
Bottom coupling beam and indefectible, rapid expanding of high polymer material, barrier performance combine to components such as supports, structure power transmission stress side
Formula is clear, structure is safe and reliable.Effectively overcome the defect of traditional construction technique bring structure partial weakening strength.
(3) campshed, crown beam, waist rail, substrate coupling beam and to components such as supports using mechanical accurate processing, be standardized life
It produces.The associated components in foundation pit supporting construction system that the art of this patent proposes are all made of standardized production technology and carry out machinery
Accurate processing, while by accurate control of the construction link to technique, by installation accuracy control in grade, what is be easily installed is same
When, it is also convenient for recycling and reusing, thus for a kind of problem, also it is achieved that standardized design and construction.
(4) quick construction is not required to health.Campshed, crown beam, waist rail, substrate coupling beam and to the components such as support the factorial production,
It works continuously at the scene by sequence of construction, quick construction is not required to health.High polymer material is formed in 15 minutes after the reaction
90% or so intensity, toughness and anti-permeability performance can save 50% or more construction work compared with traditional supporting structure system
Phase.
(5) this patent provide same set of supporting construction can meet within the scope of certain depth, the base that surrounding enviroment are different
Cheat supporting design and construction task.
(6) mixed economy environmental benefit has more advantage.Compared with traditional support technology, the recyclable row of flexible compound assembled
Stake is construction period to the maximum feature of support supporting construction, can reduce the pollution to environment such as mud, dust, concrete, and foundation pit uses
Phase security is reliable, and can provide accessible operating space inside foundation pit, while subsequent recovery value is high and reusable,
The scope of application is wider.
Therefore, campshed can be recycled to the design and construction method of support supporting construction in the present invention researches and develops flexible compound assembled,
It has a clear superiority in the work progress of the projects such as foundation pit, side slope, Subway station, municipal pipeline excavation.With existing supporting
Technology is compared, and it is a whole set of completely new skill again to the design and construction method of support supporting construction that campshed, which can be recycled, in flexible compound assembled
Art is mainly manifested in:
(1) it completely new support structure design theory: in foundation pit supporting construction, from the essence of base pit engineering, is put forward for the first time
The design concept of flexible compound, and mechanical accurate manufacture, assembled in situ standardized production are introduced in foundation pit supporting construction system
Thought, change over each project supporting construction independent design and playing using the i.e. outcast office of function
Face.This supporting construction uses standardized design and construction, to same class problem, can use a kind of solution mode, simplify
Design and construction process, after having played using function, it can be achieved that the high efficiente callback and recycling of supporting construction, real body
Reveal essential characteristic of the base pit engineering as temporary security measures.
(2) it is clear to the support supporting structure system stress division of labor that campshed can be recycled in the assembled of flexible compound: high polymer material
Toughness played the effect of " soft " well, fill and made the poor rigidity between supporting construction side wall and the side wall soil body up
It is different, the stress mutation of supporting construction side wall and the side wall soil body is mitigated, and anti-blend for playing seam areas simultaneously controls the soil body
Lateral creep effect；Soil pressure is by campshed, crown beam, waist rail, substrate coupling beam and the flexible compound assembled collectively constituted to support etc.
Recyclable campshed plays support supporting construction the effect of " rigid ", and different and traditional campshed connects support structure by setting substrate
Beam and to support structure, force structure is also more rationally, it is easier to foundation pit deformation is controlled, in addition, supporting construction component can be according to base
It cheats engineering safety and needs rationally prefabricated processing, so that characteristic of material mechanics plays sufficiently.The component itself for undertaking soil pressure has
Uniform in material, isotropism, mechanical index is clear, and Structure Calculation is more rationally reliable.
(3) construction standardization degree is high: flexible compound assembled can be recycled campshed in support supporting structure system campshed,
Crown beam, waist rail, substrate coupling beam and the achievable mechanizations such as support are accurately processed, scene is corrected by the plane positioning of independent design
The positioning accuracy of the campshed of most critical in supporting construction is increased to a millimeter rank, convenient for the standard of subsequent work in every by platform
Change Fast Installation, is also convenient for the reuse of later period recycling and structure.
(4) side slope side wall anti-seepage effect is obvious, with strong points.In pit earthwork digging process, pass through digging process
It directly discloses, using rapid expanding of the high polymer material between the side wall soil body and structural system, being formed has toughness and antiseepage
The high polymer laminate structure of backwater function, while utilizing high polymer material in fast expansion to the weak portion of the side wall soil body
Position carries out reinforcement, so that structure periphery soil body combination relative close, is not present apparent weak link.
(5) structure rate of recovery height, high recycling rate: campshed can be recycled to support supporting structure system in flexible compound assembled
Most components be standardized production steel member, not only the rate of recovery is high, but also recovery value is high；Meanwhile after recycling
Support unit also being repeatedly used in turn for the supporting project under subsequent same analogous-design pattern.
In conclusion no matter the present invention is from the design concept of supporting construction, force-mechanism, standardized construction, side wall antiseepage
The value etc. that recycles and reuses for the treatment of effect or structural system all has apparent difference with existing support technology,
Have many advantages, such as that safe and reliable, quick construction, technologically advanced, recyclable recycling, economic indicator are superior, and is successfully applied to
Foundation pit supporting project, development and application prospect are considerable.
Detailed description of the invention
Fig. 1 is that campshed processes node drawing；
Fig. 2 is that campshed can be recycled to support supporting construction sectional structural map in flexible compound assembled；
Fig. 3 is campshed top crown beam to support plan view；
Fig. 4 is substrate to support installation flow diagram；
Appended drawing reference is as follows:
1- campshed, 2- crown beam installation fixation hole, 3- recycling hole for hoist, 4- waist rail mounting hole, 5- substrate coupling beam mounting hole, 6-
Face, 7- stake holes, 8- backfilling material, 9- crown beam, 10- is to support, 11- bolt, 12- panel, 13- high polymer material, 14- waist rail, 15-
Conversion is to support, and 16- substrate coupling beam, 17- substrate is to support, 18- substrate.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
Campshed can be recycled to the design and construction method of support supporting construction in a kind of flexible compound assembled, which is characterized in that
In support structure design, it is put forward for the first time the design concept of flexible compound, from the essence of base pit engineering, with mechanical accurate system
It makes, the thought of assembled in situ standardized production, after the work of related data complete design, prefabrication processes corresponding branch
Component is protected, the assembly for carrying out live supporting construction in conjunction with high polymer grouting technology is constructed；It, can after support construction
Accessible operating space inside foundation pit is provided, accelerates the speed of application of underground structure, and recycling row can be removed after foundation pit backfill
Stake is to support supporting construction, the construction of reusable and standardized designs.Work progress specifically comprises the following steps:
(1) construction of campshed, the specific steps of which are as follows:
(1) it 1 component processing of campshed: according to design calculation result, is prefabricated in the factory the row of processing using steel by certain size
Stake component, the top of campshed, wall corresponding position carry out crown beam installation fixation hole 2, recycling hole for hoist 3, waist rail mounting hole 4,
The processing of substrate coupling beam mounting hole 5；As shown in Fig. 1；
(2) campshed drilling construction: in specified 6 position of ground, being constructed using the stake holes 7 that drilling machine carries out campshed, tight in work progress
Lattice control pore-forming accuracy, including plane positioning precision and stake holes vertical precision；
(3) it is implanted into 1 component of campshed: utilizing crane and plane positioning leveling block, be accurately implanted into the campshed component processed
Determining stake holes position, meets the positioning accuracy request of design；
(4) stake holes 7 backfills: it is backfilled using the material for being suitble to stratum to need, to guarantee the stabilization of the campshed member perimeter soil body,
Backfilling material 8 can be low-grade concrete, sandstone and high molecular material；
(2) fashioned iron crown beam 9 and to support 10 installation specific step is as follows:
(1) fashioned iron crown beam 9 and the processing to support 10: designing according to foundation pit shape and piling structure, accurate to process stake top fashioned iron hat
The punching processing of beam and the mounting hole to support, when necessary using mechanical stretch bending processing technology, to facilitate fashioned iron crown beam 9, to support 10
With the bolt of campshed 1 connect；
(2) fashioned iron crown beam 9 and the splicing installation to support 10: after campshed 1 is constructed, before excavation of foundation pit, level is used first
It is controlled to fashioned iron crown beam and to the absolute altitude of support, and then its position tentatively fix with crane, finally using high-strength
Bolt 11 by fashioned iron crown beam 9, to support 10 be fixedly connected at the top of campshed 1；As shown in Fig. 3；
(3) earthwork stage excavation and steel facing 12 are installed, and steps are as follows for Specific construction:
(1) earthwork inside layer and section excavation pit, every layer of cutting depth 1m, layer and section installation are carried out using manual method
Clear up the soil body near fashioned iron campshed 1；
(2) high polymer material 13 is hardened in injection rapid condensation after campshed surface installation steel facing 12 and plate after the cleaning, is formed
The thin layer high polymer surface layer structure of some strength；
(4) support 15 is installed in waist rail 14 and conversion, and steps are as follows for Specific construction:
(1) according to calculated result, waist rail 14 is first installed to the position of support needing to be arranged conversion, waist rail 14 is adopted with campshed 1
It is connected with bolt 11；
(2) conversion is connected and fixed support 15 and the connection between campshed 1, waist rail 14 using bolt 11.
(5) successively vertical layered excavation section by section, repetition step (3), (four) choose slot mounting substrate coupling beam 16 and substrate pair
17 structures are supportted, overall effect is as shown in Fig. 2；Substrate coupling beam, substrate to support choose slot mode such as attached drawing 4 (on) shown in, the two
After installation effect such as attached drawing 4 (in) shown in, wherein substrate is connected by screw bolts with substrate coupling beam connection type support, such as attached drawing
4 (under) shown in, then whole to be excavated to substrate 18, dismountable waist rail 14 and conversion when necessary is completed flexible to 15 structures are supportted
Construction of the combined assembled recyclable campshed to support supporting structure system；
(6) supporting construction is completed, as foundation pit backfill can have the carry out recovery operation of step, specifically to recycle using after function
Steps are as follows:
(1) with the progress of backfilling working, first recycling substrate coupling beam 16 and lower part steel facing 12；
(2) it is backfilled to waist rail position, starts to recycle waist rail 14 and conversion to support 15；
(3) backfilling working and steel facing 12, waist rail 14 and conversion to the recovery operation of support 15 successively alternately；
(4) stake top crown beam 9 and the dismounting recycling to support 10；
(5) crane cooperates the extraction of hydraulic jack pair campshed 1 to recycle, and stake holes 7 backfills.
Obviously, above embodiment is only intended to clearly illustrate example, and does not limit the embodiments.
For those of ordinary skill in the art, other various forms of variations can also be made on the basis of the above description
Or it changes.There is no necessity and possibility to exhaust all the enbodiments.And obvious variation extended from this
Or it changes among still in the protection scope of this patent.
Claims (2)
1. campshed can be recycled to the design and construction method of support supporting construction in a kind of flexible compound assembled, which is characterized in that construction
Process specifically comprises the following steps:
(1) construction of campshed, the specific steps are as follows:
(1) it campshed component processing: according to design calculation result, is prefabricated in the factory the row of processing using steel by certain size
Stake carries out crown beam installation fixation hole, recycling hole for hoist, waist rail mounting hole, substrate coupling beam in the top of campshed, wall corresponding position
The processing of mounting hole；
(2) campshed drilling construction: stringent in work progress using the pile hole construction of drilling machine progress campshed in specified ground location
Control pore-forming accuracy, including plane positioning precision and stake holes vertical precision；
(3) it is implanted into campshed component: utilizing crane and plane positioning leveling block, accurately by the campshed processed implantation determination
Stake holes position meets the positioning accuracy request of design；
(4) stake holes backfills: it is backfilled using the material for being suitble to stratum to need, to guarantee the stabilization of the campshed member perimeter soil body,
Backfilling material can be low-grade concrete, sandstone and high molecular material；
(2) fashioned iron crown beam and to support install, the specific steps are as follows:
(1) fashioned iron crown beam and the processing to support: designing according to foundation pit shape and piling structure, it is accurate process stake top fashioned iron crown beam and
Punching processing to the mounting hole of support, when necessary using mechanical stretch bending processing technology, to facilitate fashioned iron crown beam, to support and campshed
It is bolted；
(2) fashioned iron crown beam and the splicing installation to support: after campshed is constructed, before excavation of foundation pit, first using level to type
Steel crown beam and the absolute altitude of support is controlled, and then its position is carried out with crane tentatively fixed, finally uses high-strength bolt
It is fixedly connected by fashioned iron crown beam, to support and campshed top；
(3) earthwork stage excavation and steel facing installation, steps are as follows for Specific construction:
(1) earthwork inside layer and section excavation pit, every layer of cutting depth 1m, layer and section installation are carried out using manual method
Clear up the soil body near fashioned iron campshed；
(2) high polymer material is hardened in injection rapid condensation after campshed surface installation steel facing and plate after the cleaning, is formed certain
The thin layer high polymer surface layer structure of intensity；
(4) support is installed in waist rail and conversion, and steps are as follows for Specific construction:
(1) according to calculated result, waist rail is first installed to the position of support needing to be arranged conversion, waist rail and campshed use bolt
Connection；
(2) connection to support and between campshed, waist rail is converted to be fixed with bolts；
(5) successively vertical layered excavation section by section, repeats step (3), (four) choose slot mounting substrate coupling beam and substrate to support structure,
Entirety is excavated to substrate, and to support structure, i.e. campshed can be recycled in completion flexible compound assembled for dismountable waist rail and conversion when necessary
Construction to support supporting structure system.
2. campshed can be recycled to the design and construction side of support supporting construction in a kind of flexible compound assembled as described in claim 1
Method, which is characterized in that further include complete in supporting construction using after function, as foundation pit backfill can have step recycle
Work, specific recycling step are as follows:
(1) with the progress of backfilling working, first recycling substrate coupling beam and lower part steel facing；
(2) it is backfilled to waist rail position, starts to recycle waist rail and conversion to support；
(3) backfilling working and steel facing, waist rail and conversion to the recovery operation of support successively alternately；
(4) stake top crown beam and the dismounting recycling to support；
(5) crane cooperates the extraction of hydraulic jack pair campshed to recycle, and backfills stake holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811095701.2A CN109295985A (en) | 2018-09-19 | 2018-09-19 | Campshed can be recycled to the design and construction method of support supporting construction in a kind of flexible compound assembled |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811095701.2A CN109295985A (en) | 2018-09-19 | 2018-09-19 | Campshed can be recycled to the design and construction method of support supporting construction in a kind of flexible compound assembled |
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| CN109295985A true CN109295985A (en) | 2019-02-01 |
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| CN201811095701.2A Pending CN109295985A (en) | 2018-09-19 | 2018-09-19 | Campshed can be recycled to the design and construction method of support supporting construction in a kind of flexible compound assembled |
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| CN112796277A (en) * | 2020-12-10 | 2021-05-14 | 中山大学 | I-shaped steel pile-steel panel-high polymer composite layer soil retaining structure |
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