CN109252526A - Assembled support construction technique based on prestressing force fish belly sill support technology - Google Patents
Assembled support construction technique based on prestressing force fish belly sill support technology Download PDFInfo
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- CN109252526A CN109252526A CN201811183192.9A CN201811183192A CN109252526A CN 109252526 A CN109252526 A CN 109252526A CN 201811183192 A CN201811183192 A CN 201811183192A CN 109252526 A CN109252526 A CN 109252526A
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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
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
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Abstract
The present invention proposes the assembled support construction technique based on prestressing force fish belly sill support technology, comprising the following steps: selected supporting construction component, enclosure wall construction, column component construction, the construction of shelf bracket component, the installation of purlin component, the installation of bracket and support beam, corner brace member installation, the installation of fish belly beam and applies prestressing force；The rigidity and stability of entire assembled supporting construction can be improved to being made for assembled supporting construction by carrying out using prestressing force fish belly sill support technology in the present invention, it can be with open construction site space, convenient for remaining production work in foundation pit, also has the characteristics that short time limit, energy consumption can be greatly reduced, the stability after shelf bracket installation can be improved by the pretreatment to shelf bracket component, more preferably positioning datum environment is provided for the positioning of the purlin installation in subsequent handling, so as to improve the installation precision and structural stability of entire assembled supporting construction.
Description
Technical field
The present invention relates to building engineering fields, more particularly to the assembled supporting knot based on prestressing force fish belly sill support technology
Structure construction technology.
Background technique
Pattern foundation pit supporting structure is the safety to guarantee Underground Construction and foundation pit surrounding environment, to foundation pit side-wall and surrounding enviroment
Using the engineering-built method of supporting and retaining system, reinforcing and safeguard measure.Assembled supporting construction be based on molding prefabricated components,
It is assembled into supporting construction at the scene by various technological means, currently, more mature assembled supporting construction has in the market:
Prefabricated pile, coercion underground continuous wall structure, prestressing force fish belly sill support construction, tool-type combination inner support etc., wherein prestressing force
Fish belly sill support technology (IPS engineering method) is that (high strength low relaxed steel strand wires are as upper chord member, H profile steel conduct by fish belly sill
Bearing beam, with the composition such as H profile steel support beam different in size), to support, angle brace, column, crossbeam, pull rod, triangular nodes, precompressed
The standarized components group such as holding device, which merges, applies prestressing force, forms plane pre-stressed support systems and stereochemical structure system.
Most of traditional supporting construction is traditional support girder construction, and traditional support girder construction occupies in the construction process
Construction ground area is larger, and the structure construction convenience in foundation pit is poor, at the same traditional support girder construction component installation, disassembly and
The period of the constructions such as pit earthwork excavation is long, and construction cost is higher.Therefore, the present invention proposes to support skill based on prestressing force fish belly sill
The assembled support construction technique of art, to solve shortcoming in the prior art.
Summary of the invention
In view of the above-mentioned problems, present invention proposition is carried out using prestressing force fish belly sill support technology to assembled supporting construction
The rigidity and stability that entire assembled supporting construction can be improved is made, it can be with open construction site, convenient for its in foundation pit
Remaining production work can effectively improve space utilization rate in foundation pit, have the characteristics that short time limit, quality are easily controllable, can be with
Greatly reduce energy consumption.
The present invention proposes the assembled support construction technique based on prestressing force fish belly sill support technology, including following step
It is rapid:
Step 1: selected supporting construction component
The quantity of supporting construction component is determined according to the assembled support structure design drawing of foundation pit, and according to the dress of foundation pit
Multi-party responsible person is carried out with formula support structure design drawing and checks supporting construction the number of components, determines that supporting construction component is accurate
It is errorless；
Step 2: enclosure wall construction
It is enclosed on construction ground according to the assembled support construction drawing requirement of foundation pit and builds enclosure wall；
Step 3: column component construction
Column component is mounted in reserved post holes according to the assembled support construction drawing of foundation pit, and uses longitude and latitude
The verticality of instrument column component carries out verification correction, guarantees column component verticality without offset, after column component installs
Column component is completely fixed in reserved post holes in such a way that vibration is beaten；
Step 4: shelf bracket component construction
Shelf bracket component is installed at the closed line of foundation pit enclosure wall surrounding, shelf bracket component is carried out in a pre-installation
Pretreatment, then will be installed at pretreated shelf bracket lifting component to column component, column component and shelf bracket
It is attached between component using high-strength bolt, the assembled supporting construction of the upper elevation line and foundation pit that control shelf bracket component is applied
The center line of purlin component on work drawing guarantees the connection with column component of shelf bracket component in same level position
Portion is solid and reliable, and welding is twisted and rosin joint phenomenon, and the whippletree needs of shelf bracket component are in a horizontal state, shelf bracket
The whippletree elevation angle of component is controlled in 90-95 degree；
Step 5: purlin component installation
Using hanging device by purlin lifting component to shelf bracket, to shelf bracket structure after purlin lifting component is in place
Part checked, check shelf bracket component in purlin hoisting process whether because there is loosening problem in the reasons such as collision, if three
Loosening problem, which occurs, in angle bracket component then to need to carry out inspection fixation to shelf bracket component again；
Step 6: the installation of bracket and support beam
Collet member and support beam are installed using welding procedure, and welding method is by the way of being fully welded, weld seam
Height is greater than 8 millimeters, needs to monitor collet member during installation collet member and support beam and supports beam
The verticality of horizontal absolute altitude and bracket；
Step 7: corner brace member installation
Corner brace member is subjected to pre-splicing combination in ground region, then passes through hanging device for the angle brace after pre-splicing combination
Installation is fixed in lifting component to predetermined installation position；
Step 8: fish belly beam installation
By fish belly beam on the ground according to the design of fish belly sill on the assembled support construction drawing of foundation pit across
Degree carries out preassembling, will be on the pre-splicing fish belly sill lifting component to shelf bracket component installed using hanging device after preassembling
Side, then the pre-splicing fish belly beam both ends installed are fixedly mounted with shelf bracket component respectively；
Step 9: apply prestressing force
Fish belly beam carries out application pretightning force to each component of assembled supporting construction after installing.
Further improvement lies in that: supporting construction the number of components also needs after determining to supporting construction component in the step 1
Carry out an acceptance inspection inspection, and the scope of examination includes: to check member profile size, bolt hole size, bolt pitch of holes and weld assembled matter
Amount, and need to repair the supporting construction component for causing deformation in transportational process, the excessive supporting construction structure of deflection
Part needs remake or choose.
Further improvement lies in that: construction site position is first determined according to foundation pit size design drawing requirement in the step 2
It sets, and distribution and fluctuations to the earthen formations of construction site, groundwater level and quality of groundwater situation detect,
Detection is enclosed to build again and be gone along with sb. to guard him without flattening again to the ground of construction site after influencing construction factor after the leveling of construction site ground
Wall.
Further improvement lies in that: the absolute altitude it needs to be determined that column component is gone back in the step 3 central post work progress, and
Structural elements on other column components is assembled, what structural elements was beaten with piling machine using vibration again after being completed
Column component is completely fixed in reserved post holes by mode.
Further improvement lies in that: it needs using horizontal measuring instrument after the step 4 intermediate cam carrier member installation to triangle
Bracket buys carry out horizontal degree measurement, therefore, to assure that shelf bracket component and column component are in being horizontally disposed with, if shelf bracket
Component and column component are not then to need to unclamp high-strength bolt again in horizontally disposed, again levelling rear installation shelf bracket structure
Part, until shelf bracket component is in horizontally disposed with column component completely.
Further improvement lies in that: the pretreatment that the step 4 intermediate cam carrier member carries out in a pre-installation are as follows: triangle support
It must assure that the connecting portion of shelf bracket component and column component does not have impurity in the installation process of frame member, for triangle support
The impurity needs that the connecting portion of frame member and column component occurs timely are cleared up.
Further improvement lies in that: it needs first to carry out purlin component base point of installation before the installation of purlin component in the step 5
Determination, using dedicated fiducial point measuring instrument to carrying out positioning on the inside of the two neighboring corner of foundation pit really before the installation of purlin component
Determine datum mark, then plane positioning is carried out using the method for hanging wire by the basic point.
Further improvement lies in that: collet member is installed using high strong ties bolt with column component in the step 6
It connects, the installation direction of high strong ties bolt and the direction of column component are consistent in collet member.
Further improvement lies in that: corner brace member needs diagonal brace structure after the pre-splicing combination of ground region in the step 7
The pre-splicing straight degree of combined support of part is checked, passes through hanging device after passed examination again for the angle after pre-splicing combination
Installation is fixed in support lifting component to predetermined installation position.
Further improvement lies in that: prestressed application rule in the step 9 are as follows: check the high-strength of lattice piece interconnecting piece
Whether the connection of bolt and high strong ties bolt consolidates, then diagonal brace component applies prestressing force, finally on fish belly beam
Steel strand wires apply prestressing force.
The invention has the benefit that assembled supporting construction uses prestressing force fish belly sill that technology progress is made in the present invention
Support has the characteristics that low cost, short time limit, quality are easily controllable with conventional supporting means, can greatly reduce energy consumption, subtract
Lack building waste, has higher social and economic benefits and environmental-protection function, while carrying out using prestressing force fish belly sill support technology
The rigidity and stability of entire assembled supporting construction can be improved to being made for assembled supporting construction, it can open construction field
Ground can effectively improve space utilization rate in foundation pit convenient for remaining production work in foundation pit, and be connected by high-strength screw thread
Connecing each component facilitates the later period to dismantle, it is possible to reduce labour pays, and can be improved three by the pretreatment to shelf bracket component
Stability after angle bracket installation provides more preferably positioning datum environment for the positioning of the purlin installation in subsequent handling,
So as to improve the installation precision and structural stability of entire assembled supporting construction.
Detailed description of the invention
Fig. 1 is construction flow chart of the present invention.
Specific embodiment
In order to deepen the understanding of the present invention, the present invention is further described below in conjunction with embodiment, the present embodiment
For explaining only the invention, it is not intended to limit the scope of the present invention..
According to Fig. 1, the present invention proposes a kind of technical solution:
Assembled support construction technique based on prestressing force fish belly sill support technology, comprising the following steps:
Step 1: selected supporting construction component
The quantity of supporting construction component is determined according to the assembled support structure design drawing of foundation pit, and according to the dress of foundation pit
Multi-party responsible person is carried out with formula support structure design drawing and checks supporting construction the number of components, determines that supporting construction component is accurate
Errorless, supporting construction the number of components also needs the inspection that carries out an acceptance inspection to supporting construction component after determining, the scope of examination includes: to check
Member profile size, bolt hole size, bolt pitch of holes and assembled quality is welded, and needed to causing to deform in transportational process
Supporting construction component repaired, deflection it is excessive supporting construction component needs remake or choose；
Step 2: enclosure wall construction
Construction site position is first determined according to foundation pit size design drawing requirement, and to point of the earthen formations of construction site
Cloth and fluctuations, groundwater level and quality of groundwater situation are detected, detection without influence construction factor after again to construction
The ground in place is flattened, and is enclosed again after the leveling of construction site ground and is built enclosure wall；
Step 3: column component construction
Column component is mounted in reserved post holes according to the assembled support construction drawing of foundation pit, and uses longitude and latitude
The verticality of instrument column component carries out verification correction, guarantee column component verticality without offset, in column work progress also
It needs to be determined that the absolute altitude of column component, and the structural elements on other column components is assembled, structural elements group on column
Column component is completely fixed in reserved post holes in such a way that vibration is beaten with piling machine again after the completion of dress；
Step 4: shelf bracket component construction
Shelf bracket component is installed at the closed line of foundation pit enclosure wall surrounding, shelf bracket component is carried out in a pre-installation
Pretreatment, in order to guarantee shelf bracket component installation process intermediate cam carrier member and column component connecting portion it is not miscellaneous
Matter, the impurity needs occurred for the connecting portion of shelf bracket component and column component are timely cleared up, then will be located in advance
It is installed at shelf bracket lifting component to column component after reason, high-strength spiral shell is used between column component and shelf bracket component
Bolt is attached, and controls the purlin structure in the upper elevation line of shelf bracket component and the assembled support construction drawing of foundation pit
The center line of part guarantees, the solderless solid and reliable with the interconnecting piece of column component of shelf bracket component in same level position
Twisted and rosin joint phenomenon is connect, and the whippletree needs of shelf bracket component are in a horizontal state, the whippletree elevation angle of shelf bracket component
Control needs to buy carry out horizontal degree measurement to shelf bracket using horizontal measuring instrument after 90 degree, the installation of shelf bracket component,
Shelf bracket component and column component are necessary to ensure that in being horizontally disposed with, if shelf bracket component and column component are not in level
Setting then needs to unclamp high-strength bolt again, again levelling rear installation shelf bracket component, until shelf bracket component and column
Component is in horizontally disposed completely；
Step 5: purlin component installation
Need first to carry out the determination of purlin component base point of installation before the installation of purlin component, using special before the installation of purlin component
With datum mark measuring instrument to carrying out positioning determining datum mark on the inside of the two neighboring corner of foundation pit, then by the basic point using hanging
The method of line carries out plane positioning, then using hanging device by purlin lifting component to shelf bracket, purlin lifting component
Shelf bracket component is checked after in place, checks shelf bracket component in purlin hoisting process whether because of reasons such as collisions
There is loosening problem, needs to carry out inspection fixation to shelf bracket component again if loosening problem occurs in shelf bracket component；
Step 6: the installation of bracket and support beam
Collet member and support beam are installed using welding procedure, and welding method is by the way of being fully welded, weld seam
Height is greater than 8 millimeters, needs to monitor collet member during installation collet member and support beam and supports beam
The verticality of horizontal absolute altitude and bracket, collet member carry out installation connection, bracket using high strong ties bolt and column component
The installation direction of high strong ties bolt and the direction of column component are consistent on component；
Step 7: corner brace member installation
Corner brace member needs the pre-splicing straight degree of combined support of diagonal brace component after the pre-splicing combination of ground region
It is checked, the corner brace member after pre-splicing combination is lifted to predetermined installation position by hanging device again after passed examination and is carried out
It is fixedly mounted；
Step 8: fish belly beam installation
By fish belly beam on the ground according to the design of fish belly sill on the assembled support construction drawing of foundation pit across
Degree carries out preassembling, will be on the pre-splicing fish belly sill lifting component to shelf bracket component installed using hanging device after preassembling
Side, then the pre-splicing fish belly beam both ends installed are fixedly mounted with shelf bracket component respectively；
Step 9: apply prestressing force
Fish belly beam carries out application pretightning force to each component of assembled supporting construction after installing, and first checks lattice piece
Whether the connection of the high-strength bolt of interconnecting piece and high strong ties bolt consolidates, then diagonal brace component applies prestressing force, finally to fish
Steel strand wires on web grider component apply prestressing force.
Assembled supporting construction is made technology using prestressing force fish belly sill and is supported and conventional supporting means in the present invention
Have the characteristics that low cost, short time limit, quality are easily controllable, energy consumption can be greatly reduced, reduce building waste, had higher
Social and economic benefits and environmental-protection function, while being carried out using prestressing force fish belly sill support technology to assembled supporting construction
The rigidity and stability that entire assembled supporting construction can be improved is made, it can be with open construction site, convenient for its in foundation pit
Remaining production work can effectively improve space utilization rate in foundation pit, and facilitate the later period by high-strength each component of threaded connection
Disassembly, it is possible to reduce labour pays, steady after shelf bracket installation can be improved by the pretreatment to shelf bracket component
It is qualitative, more preferably positioning datum environment is provided for the positioning of the purlin installation in subsequent handling, it is entire so as to improve
The installation precision and structural stability of assembled supporting construction.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (10)
1. the assembled support construction technique based on prestressing force fish belly sill support technology, it is characterised in that: including following step
It is rapid:
Step 1: selected supporting construction component
The quantity of supporting construction component is determined according to the assembled support structure design drawing of foundation pit, and according to the assembled of foundation pit
Support structure design drawing carries out multi-party responsible person and checks supporting construction the number of components, determines the accurate nothing of supporting construction component
Accidentally；
Step 2: enclosure wall construction
It is enclosed on construction ground according to the assembled support construction drawing requirement of foundation pit and builds enclosure wall；
Step 3: column component construction
Column component is mounted in reserved post holes according to the assembled support construction drawing of foundation pit, and uses theodolite pair
The verticality of column component carries out verification correction, guarantees column component verticality without offset, column component uses after installing
Column component is completely fixed in reserved post holes by the mode that vibration is beaten；
Step 4: shelf bracket component construction
Shelf bracket component is installed at the closed line of foundation pit enclosure wall surrounding, shelf bracket component is located in advance in a pre-installation
Reason, then will be installed at pretreated shelf bracket lifting component to column component, column component and shelf bracket component
Between be attached using high-strength bolt, control shelf bracket component upper elevation line and foundation pit assembled support construction figure
The center line of purlin component on paper guarantees the firm with the interconnecting piece of column component of shelf bracket component in same level position
Gu reliable, welding is twisted and rosin joint phenomenon, and the whippletree needs of shelf bracket component are in a horizontal state, shelf bracket component
The whippletree elevation angle control in 90-95 degree；
Step 5: purlin component installation
Using hanging device by purlin lifting component to shelf bracket, after purlin lifting component is in place to shelf bracket component into
Row check, check shelf bracket component in purlin hoisting process whether because collision etc. reasons there is loosening problem, if triangle support
Loosening problem, which occurs, in frame member then to need to carry out inspection fixation to shelf bracket component again；
Step 6: the installation of bracket and support beam
Collet member and support beam are installed using welding procedure, and welding method is by the way of being fully welded, weld bead height
Greater than 8 millimeters, needs to monitor collet member during installation collet member and support beam and support the level of beam
The verticality of absolute altitude and bracket；
Step 7: corner brace member installation
Corner brace member is subjected to pre-splicing combination in ground region, then passes through hanging device for the corner brace member after pre-splicing combination
Installation is fixed in lifting to predetermined installation position；
Step 8: fish belly beam installation
By fish belly beam on the ground according to the design span of fish belly sill on the assembled support construction drawing of foundation pit into
Row preassembling, using hanging device by above the pre-splicing fish belly sill lifting component installed to shelf bracket component after preassembling, then
The pre-splicing fish belly beam both ends installed are fixedly mounted with shelf bracket component respectively；
Step 9: apply prestressing force
Fish belly beam carries out application pretightning force to each component of assembled supporting construction after installing.
2. the assembled support construction technique according to claim 1 based on prestressing force fish belly sill support technology,
Be characterized in that: supporting construction the number of components also needs the inspection that carries out an acceptance inspection to supporting construction component after determining in the step 1,
The scope of examination includes: inspection member profile size, bolt hole size, bolt pitch of holes and welds assembled quality, and needs pair
The supporting construction component of deformation is caused to be repaired in transportational process, the excessive supporting construction component needs of deflection remake
Or it chooses.
3. the assembled support construction technique according to claim 1 based on prestressing force fish belly sill support technology,
It is characterized in that: construction site position first being determined according to foundation pit size design drawing requirement in the step 2, and to construction site
Earthen formations distribution and fluctuations, groundwater level and quality of groundwater situation detected, detection without influence construct
The ground of construction site is flattened again after factor, is enclosed again after the leveling of construction site ground and builds enclosure wall.
4. the assembled support construction technique according to claim 1 based on prestressing force fish belly sill support technology,
It is characterized in that: also it needs to be determined that the absolute altitude of column component in the step 3 central post work progress, and by other column components
On structural elements assembled, structural elements be completed after again with piling machine in such a way that vibration is beaten by column component
It is completely fixed in reserved post holes.
5. the assembled support construction technique according to claim 1 based on prestressing force fish belly sill support technology,
It is characterized in that: needing to buy carry out water to shelf bracket using horizontal measuring instrument after the step 4 intermediate cam carrier member installation
Pingdu measurement, therefore, to assure that shelf bracket component and column component are in being horizontally disposed with, if shelf bracket component and column component
Not being is in be horizontally disposed with then to need to unclamp high-strength bolt again, again levelling rear installation shelf bracket component, until shelf bracket
Component is in horizontally disposed with column component completely.
6. the assembled support construction technique according to claim 1 based on prestressing force fish belly sill support technology,
It is characterized in that: the pretreatment that the step 4 intermediate cam carrier member carries out in a pre-installation are as follows: the installation of shelf bracket component
It must assure that the connecting portion of shelf bracket component and column component does not have impurity in journey, for shelf bracket component and column structure
The impurity needs that the connecting portion of part occurs timely are cleared up.
7. the assembled support construction technique according to claim 1 based on prestressing force fish belly sill support technology,
It is characterized in that: needing first to carry out the determination of purlin component base point of installation, purlin structure in the step 5 before the installation of purlin component
Using dedicated fiducial point measuring instrument to carrying out positioning determining datum mark on the inside of the two neighboring corner of foundation pit before part installation, then lead to
It crosses the basic point and plane positioning is carried out using the method for hanging wire.
8. the assembled support construction technique according to claim 1 based on prestressing force fish belly sill support technology,
Be characterized in that: collet member carries out installation connection, collet member using high strong ties bolt and column component in the step 6
The installation direction of upper high strong ties bolt and the direction of column component are consistent.
9. the assembled support construction technique according to claim 1 based on prestressing force fish belly sill support technology,
Be characterized in that: corner brace member needs the pre-splicing combination of diagonal brace component after the pre-splicing combination of ground region in the step 7
The straight degree of support checked, the corner brace member after pre-splicing combination is lifted to pre- by hanging device again after passed examination
Determine installation position and installation is fixed.
10. the assembled support construction technique according to claim 1 based on prestressing force fish belly sill support technology,
It is characterized in that: prestressed application rule in the step 9 are as follows: check the high-strength bolt and high strong ties of lattice piece interconnecting piece
Whether the connection of bolt consolidates, then diagonal brace component applies prestressing force, is finally answered in advance the steel strand wires application on fish belly beam
Power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811183192.9A CN109252526A (en) | 2018-10-11 | 2018-10-11 | Assembled support construction technique based on prestressing force fish belly sill support technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811183192.9A CN109252526A (en) | 2018-10-11 | 2018-10-11 | Assembled support construction technique based on prestressing force fish belly sill support technology |
Publications (1)
| Publication Number | Publication Date |
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| CN109252526A true CN109252526A (en) | 2019-01-22 |
Family
ID=65045085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811183192.9A Withdrawn CN109252526A (en) | 2018-10-11 | 2018-10-11 | Assembled support construction technique based on prestressing force fish belly sill support technology |
Country Status (1)
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| CN (1) | CN109252526A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111236253A (en) * | 2020-02-11 | 2020-06-05 | 中铁隧道集团二处有限公司 | Construction process for installing steel purlin and steel support on water |
| CN111305233A (en) * | 2020-04-17 | 2020-06-19 | 中交一公局集团有限公司 | Axial force compensation type prestress fish-bellied foundation pit steel supporting structure and construction method thereof |
-
2018
- 2018-10-11 CN CN201811183192.9A patent/CN109252526A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111236253A (en) * | 2020-02-11 | 2020-06-05 | 中铁隧道集团二处有限公司 | Construction process for installing steel purlin and steel support on water |
| CN111305233A (en) * | 2020-04-17 | 2020-06-19 | 中交一公局集团有限公司 | Axial force compensation type prestress fish-bellied foundation pit steel supporting structure and construction method thereof |
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Effective date of registration: 20190927 Address after: 528300 East Office Building 201-11, No. 11 Junye East Road, Beijiao Town, Shunde District, Foshan City, Guangdong Province Applicant after: Guangdong Bozhilin Robot Co., Ltd. Address before: Room 105-46536, No. 6 Baohua Road, Hengqin New District, Zhuhai City, Guangdong Province Applicant before: Dingchen Construction Management Co., Ltd. |
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