CN112681332A - Construction method for supporting system by using steel sheet piles in complex environment - Google Patents
Construction method for supporting system by using steel sheet piles in complex environment Download PDFInfo
- Publication number
- CN112681332A CN112681332A CN202011405502.4A CN202011405502A CN112681332A CN 112681332 A CN112681332 A CN 112681332A CN 202011405502 A CN202011405502 A CN 202011405502A CN 112681332 A CN112681332 A CN 112681332A
- Authority
- CN
- China
- Prior art keywords
- wall
- basement
- steel
- steel sheet
- basement outer
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 84
- 239000010959 steel Substances 0.000 title claims abstract description 84
- 238000010276 construction Methods 0.000 title claims abstract description 28
- 238000009415 formwork Methods 0.000 claims description 30
- 239000010410 layer Substances 0.000 claims description 16
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 239000004570 mortar (masonry) Substances 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000011241 protective layer Substances 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 238000009412 basement excavation Methods 0.000 claims description 3
- 239000003171 wood protecting agent Substances 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 125000006850 spacer group Chemical group 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a construction method for a support system by using steel sheet piles in a complex environment. The steel wire is adopted to connect and tighten the steel bar pull ring on the outer side template of the basement outer wall and the steel sheet pile, so that a plurality of battens are pressed between the outer side template of the basement outer wall and the steel sheet pile. The support system adopts the steel pipe as the bearing diagonal, and the fastener card is even, and the steel pipe turns to the fastener for the bearing diagonal and links to each other with vertical falling to the ground support to reserve the spacer bar at basement bottom plate (floor) and link to each other with the steel pipe, ensure that inboard support system is stable. The whole basement has good waterproof effect, and the supporting system is safe and stable.
Description
Technical Field
The invention relates to a construction method of a supporting system, in particular to a construction method of a supporting system by using steel sheet piles in a complex environment.
Background
Along with the economic development of China, buildings are more dense during urban construction planning, the distance between the outer wall of a plurality of basements and the red line of land is shorter, the surrounding environment of the underground is more complex, and the situation that the operation space is narrow and the construction site is limited is often encountered when the outer wall templates of the basements are erected. In the earth excavation stage, different formwork supporting systems are determined by different supporting systems. When the steel sheet pile is used as a maintenance structure, the steel sheet pile is used for supporting a formwork on one side by relying on a formwork outside an outer wall of the basement, so that the construction problems of complex surrounding environment and narrow operation space of the basement can be better solved on the premise of ensuring the construction quality.
Chinese patent with application number CN201921578813.3 discloses a single-side formwork reinforcing device for an external wall of a basement, which comprises a main support rod, an adjusting component, auxiliary support rods and a support plate, wherein the bottom of the main support rod is fixedly provided with the auxiliary support rod, the main support rod and the auxiliary support rods are respectively provided with a plurality of auxiliary support rods, the adjusting component is fixedly arranged between every two adjacent auxiliary support rods, one end of the main support rod, which is far away from the auxiliary support rods, is fixedly provided with the support plate, one sides of the support plate and the auxiliary support rods, which are far away from the main support rod, are fixedly arranged with the external wall of the basement, one side of the external wall of the basement, which is close to the support plate, is provided with a primary preformed groove, and the support plate is inserted into the primary preformed groove. The support distance between two adjacent auxiliary support rods is adjusted, so that the use flexibility is stronger, and the adjustment and the fixation are convenient. This patent does not set up the waterproof layer, does not have foundation ditch supporting construction moreover.
Chinese patent with application number CN201910404649.2 discloses a construction method for a single-side formwork of an adjacent existing basement outer wall, which comprises the following construction steps of firstly, performing waterproof construction on the basement outer wall; secondly, constructing a basement foundation slab and a guide wall, and embedding a steel bar ground anchor on the foundation slab; and thirdly, erecting a formwork support body and constructing a top plate of the basement, fourthly, reinforcing the side formwork, after the concrete pouring of the top plate is finished, shaping and reinforcing the single-side formwork of the wall body by using the stable formwork support body, arranging diagonal steel pipes from the foundation bottom plate and the top plate to the outer wall, pre-embedding screws at construction joints of the wall body to prevent the wall body formwork from floating upwards, dividing the outer wall of the basement into an upper part and a lower part when the height of the wall body is 3.5-7 m, respectively performing formwork reinforcement and separately pouring concrete, avoiding a series of risks caused by overlarge side pressure when the single-side formwork of the wall body is supported and the wall body is poured at one time, and ensuring higher construction safety and construction quality of the outer wall of the basement. The waterproof layer is arranged on the underground outdoor wall according to the conventional method, and a foundation pit supporting structure is not arranged.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a construction method for supporting a system by using steel sheet piles in a complex environment, which has the advantages of low construction cost, convenience, rapidness and high construction efficiency.
The invention discloses a construction method for a supporting system by using steel sheet piles in a complex environment, which comprises the following steps:
(1) driving a plurality of underground steel sheet piles along the periphery of the foundation pit, excavating earthwork in the foundation pit, constructing a basement bottom plate at the bottom of the excavated foundation pit, and embedding a plurality of supporting steel bars arranged along the vertical direction at intervals around the basement bottom plate;
(2) welding a plurality of steel bar pull rings on the side wall of each steel sheet pile;
(3) respectively and uniformly coating a layer of CAA wood preservative on the inner wall and the outer wall of the outer side template of the basement outer wall;
(4) erecting a basement outer wall outer side template on the periphery of the outer side of a basement bottom plate, fixing a plurality of battens which are arranged in parallel up and down at intervals on the outer wall of the basement outer wall outer side template, and connecting and tensioning the basement outer wall outer side template and a steel bar pull ring on a steel sheet pile by adopting steel wires so that the battens are tightly pressed between the basement outer wall outer side template and the steel sheet pile;
(5) coating a layer of base layer treating agent on the inner wall of the outer side template of the basement outer wall, paving a waterproof coiled material on the base layer treating agent, and paving a waterproof protective layer on the waterproof coiled material;
(6) binding basement outer wall reinforcing steel bars on the inner sides of the basement outer wall outer side templates respectively, then erecting basement outer wall inner side templates on the peripheries of basement bottom plates on the inner sides of the basement outer wall reinforcing steel bars respectively, and enabling the supporting reinforcing steel bars to be located on the peripheries of the basement bottom plates on the inner sides of the basement outer wall inner side templates;
(7) a plurality of transverse back ridges are fixed on the inner wall of each underground outdoor wall inner side template at intervals up and down along the horizontal direction, and then a plurality of vertical back ridges arranged along the vertical direction are fixed on the plurality of transverse back ridges;
(8) a plurality of groups of butt-joint steel pipes are respectively arranged on the vertical back ridges of the inner side template of the underground outdoor wall at intervals along the horizontal direction, and each group of butt-joint steel pipes is fixedly connected with the inner side template of the underground outdoor wall by adopting a split bolt arranged along the horizontal direction;
(9) fixing a plurality of longitudinal steel pipes on a bottom plate of the basement at intervals along the longitudinal direction, connecting the left ends and the right ends of the longitudinal steel pipes with the support steel bars respectively, then installing a transverse steel pipe on the longitudinal steel pipes and close to the inner side of each support steel bar respectively, and connecting the front end and the rear end of each transverse steel pipe with the support steel bars respectively;
(10) sequentially and obliquely installing a plurality of oblique supporting members on the left side and the right side of the inner wall of the inner side formwork of the basement outer wall close to the front side and the rear side respectively within the height of the basement outer wall so as to tightly push against the inner wall of the inner side formwork of the basement outer wall on the left side and the right side, obliquely installing a plurality of oblique supporting members on the front side and the rear side of the inner wall of the inner side formwork of the basement outer wall close to the left side and the right side respectively so as to tightly push against the inner wall of the inner side formwork of the basement outer wall on the front side and the rear side, wherein one end of each oblique supporting member is connected with;
(11) and pouring the concrete of the outer wall of the basement between the outer side template of the outer wall of the basement and the inner side template of the outer wall of the basement.
The method utilizes the outer side template of the basement outer wall, a waterproof and mortar coating protective layer is made on the outer side template of the outer wall, the original soil utilized between the outer template and the steel sheet pile is backfilled, the inner side template adopts a multilayer board, and the back of the inner mold adopts battens to ensure the rigidity of the template. The support system adopts the steel pipe as the bearing diagonal, and the fastener card is even, and the steel pipe turns to the fastener for the bearing diagonal and links to each other with vertical falling to the ground support to reserve the spacer bar at basement bottom plate (floor) and link to each other with the steel pipe, ensure that inboard support system is stable. The whole basement has good waterproof effect, and the supporting system is safe and stable.
Drawings
FIG. 1 is a schematic elevation view of a construction node of the construction method of the invention for a complex environment supporting system by using steel sheet piles;
fig. 2 is an enlarged schematic view of a node a of a construction node elevation schematic view of a construction method for a support system using a steel sheet pile in a complex environment according to the present invention.
Detailed Description
The invention is described in detail below with reference to the following figures and specific examples:
the construction method for a complex environment supporting system by using steel sheet piles, which is disclosed by the invention and is shown in the attached drawings, comprises the following steps of:
(1) a plurality of underground steel sheet piles 1 are driven into the periphery of the foundation pit, then earthwork excavation is carried out in the foundation pit, a basement bottom plate 2 is constructed at the bottom of the excavated foundation pit, and a plurality of supporting steel bars 3 arranged along the vertical direction are installed on the periphery of the basement bottom plate in a pre-buried mode at intervals.
(2) A plurality of steel bar pull rings 4 are welded on the side wall of each steel sheet pile 1;
(3) respectively and uniformly coating a layer of CAA wood preservative on the inner wall and the outer wall of the outer side template 5 of the basement outer wall;
(4) and a basement outer wall outer side template 5 is erected on the periphery of the outer side of the basement bottom plate 2. The outer wall of the outer side formwork 5 of the basement outer wall is fixed with a plurality of battens 7 which are arranged at intervals in an up-down parallel mode, and the steel wire 6 is adopted to connect and tighten the outer side formwork 5 of the basement outer wall and the steel sheet pile through the steel bar pull ring 4, so that the battens 7 are tightly pressed between the outer side formwork 5 of the basement outer wall and the steel sheet pile. The distance between two battens 7 adjacently arranged up and down can be 500 mm.
(5) The inner wall of the outer side formwork 5 of the basement outer wall is coated with a layer of base layer treating agent, a waterproof coiled material 8 is paved on the base layer treating agent, and a waterproof protective layer 9 is paved on the waterproof coiled material. The base layer treating agent is a conventional treating agent.
In one embodiment of the present invention, the waterproof layer comprises a bottom waterproof mortar coated on the waterproof roll, a lining glass fiber mesh cloth is laid on the bottom waterproof mortar, and a surface waterproof mortar is coated on the lining glass fiber mesh cloth.
(6) The inner sides of the basement outer wall outer side templates 5 are respectively bound with basement outer wall reinforcing steel bars, then basement outer wall inner side templates 10 are respectively erected on the periphery of the basement bottom plate on the inner sides of the basement outer wall reinforcing steel bars, and the supporting reinforcing steel bars 3 are positioned on the periphery of the basement bottom plate on the inner sides of the basement outer wall inner side templates 10;
(7) and a plurality of transverse back ridges 11 are respectively fixed on the inner wall of each basement outer wall inner side template 10 at intervals along the horizontal direction from top to bottom, and then a plurality of vertical back ridges 12 arranged along the vertical direction are fixed on the plurality of transverse back ridges 11 so as to ensure the rigidity of the template.
(8) A plurality of groups of butt joint steel pipes 14 are respectively installed on the vertical back ridges 12 of the inner side template 10 of the underground outdoor wall on each side at intervals in the horizontal direction, and each group of butt joint steel pipes 14 are fixedly connected with the inner side template 10 of the underground outdoor wall by adopting split bolts 13 arranged in the horizontal direction, so that the templates are prevented from floating upwards when the wall body is poured.
(9) A plurality of longitudinal steel pipes 16 are fixed on a bottom plate of the basement at intervals along the longitudinal direction, the left end and the right end of each longitudinal steel pipe 16 are respectively connected with the support steel bars 3, then a transverse steel pipe 15 is respectively arranged on each longitudinal steel pipe 16 and close to the inner side of each support steel bar 3, and the front end and the rear end of each transverse steel pipe 15 are respectively connected with the support steel bars 3. The longitudinal steel tubes 16 and the transverse steel tubes 15 are used to clamp the whole support system.
(10) In the height of the basement outer wall, a plurality of oblique supporting members 17 are obliquely arranged on the left side and the right side of the inner wall of the basement outer wall inner side formwork 10 close to the front side and the rear side respectively to tightly push against the inner wall of the basement outer wall inner side formwork 10 on the left side and the right side, a plurality of oblique supporting members 17 are obliquely arranged on the front side and the rear side of the inner wall of the basement outer wall inner side formwork 10 close to the left side and the right side respectively to tightly push against the inner wall of the basement outer wall inner side formwork 10 on the front side and the rear side, one end of each oblique supporting member 17 is connected with a butt joint steel pipe 14 through a fastener clamp, and the.
(11) And pouring basement outer wall concrete 18 between the outer side formwork of the basement outer wall and the inner side formwork 10 of the basement outer wall.
Claims (3)
1. A construction method for a supporting system by using steel sheet piles in a complex environment is characterized by comprising the following steps:
(1) a plurality of underground steel sheet piles (1) are driven along the periphery of the foundation pit, earth excavation is carried out in the foundation pit, a basement bottom plate (2) is constructed at the bottom of the excavated foundation pit, and a plurality of supporting steel bars (3) arranged along the vertical direction are pre-buried and installed at intervals on the periphery of the basement bottom plate;
(2) a plurality of steel bar pull rings (4) are welded on the side wall of each steel sheet pile;
(3) respectively and uniformly coating a layer of CAA wood preservative on the inner wall and the outer wall of the outer side template (5) of the basement outer wall;
(4) erecting a basement outer wall outer side template on the periphery of the outer side of a basement bottom plate, fixing a plurality of battens (7) which are arranged in parallel up and down at intervals on the outer wall of the basement outer wall outer side template, and connecting and tensioning the basement outer wall outer side template and a steel bar pull ring (4) on a steel sheet pile by adopting a steel wire (6) so that the battens are tightly pressed between the basement outer wall outer side template and the steel sheet pile;
(5) coating a layer of base layer treating agent on the inner wall of the outer side template of the basement outer wall, paving a waterproof coiled material (8) on the base layer treating agent, and paving a waterproof protective layer (9) on the waterproof coiled material;
(6) basement outer wall reinforcing steel bars are respectively bound on the inner sides of the basement outer wall outer side templates, then basement outer wall inner side templates (10) are respectively erected on the periphery of the basement bottom plate on the inner sides of the basement outer wall reinforcing steel bars, and the supporting reinforcing steel bars (3) are positioned on the periphery of the basement bottom plate on the inner sides of the basement outer wall inner side templates;
(7) a plurality of transverse back ridges (11) are respectively fixed on the inner wall of each underground outdoor wall inner side template at intervals up and down along the horizontal direction, and then a plurality of vertical back ridges (12) arranged along the vertical direction are fixed on the plurality of transverse back ridges;
(8) a plurality of groups of butt joint steel pipes (14) are respectively arranged on the vertical back ridges of the inner side template of the underground outdoor wall at intervals along the horizontal direction, and each group of butt joint steel pipes is fixedly connected with the inner side template of the underground outdoor wall by adopting a split bolt (13) arranged along the horizontal direction;
(9) a plurality of longitudinal steel pipes (16) are fixed on a bottom plate of the basement at intervals along the longitudinal direction, the left ends and the right ends of the longitudinal steel pipes are respectively connected with the supporting steel bars, then a transverse steel pipe is respectively arranged on the longitudinal steel pipes and close to the inner side of each supporting steel bar, and the front end and the rear end of each transverse steel pipe are respectively connected with the supporting steel bars;
(10) sequentially and obliquely installing a plurality of oblique supporting members (17) on the left side and the right side of the inner wall of the inner side formwork of the basement outer wall close to the front side and the rear side respectively within the height of the basement outer wall so as to tightly push against the inner wall of the inner side formwork of the basement outer wall on the left side and the right side, obliquely installing a plurality of oblique supporting members on the front side and the rear side of the inner wall of the inner side formwork of the basement outer wall close to the left side and the right side respectively so as to tightly push against the inner wall of the inner side formwork of the basement outer wall on the front side and the rear side, wherein one end of each oblique supporting member is connected with a butt-joint;
(11) and pouring basement outer wall concrete (18) between the outer side template of the basement outer wall and the inner side template (10) of the basement outer wall.
2. The construction method of the complex environment supporting system by using the steel sheet pile according to claim 1, characterized in that: the waterproof protective layer comprises bottom waterproof mortar coated on the waterproof roll, lining glass fiber mesh cloth is laid on the bottom waterproof mortar, and surface waterproof mortar is coated on the lining glass fiber mesh cloth.
3. The construction method of the complex environment supporting system by using the steel sheet pile according to claim 1 or 2, characterized in that: the distance between two wood beams which are adjacently arranged up and down is 500 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011405502.4A CN112681332A (en) | 2020-12-03 | 2020-12-03 | Construction method for supporting system by using steel sheet piles in complex environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011405502.4A CN112681332A (en) | 2020-12-03 | 2020-12-03 | Construction method for supporting system by using steel sheet piles in complex environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112681332A true CN112681332A (en) | 2021-04-20 |
Family
ID=75445974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011405502.4A Pending CN112681332A (en) | 2020-12-03 | 2020-12-03 | Construction method for supporting system by using steel sheet piles in complex environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112681332A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113684834A (en) * | 2021-08-11 | 2021-11-23 | 中国建筑第六工程局有限公司 | Construction method of complex environment supporting system |
| CN114000445A (en) * | 2021-11-16 | 2022-02-01 | 北京泽通水务建设有限公司 | Construction method for multi-hole side-by-side crossing hidden culvert |
| CN114961254A (en) * | 2022-06-10 | 2022-08-30 | 杭州江润科技有限公司 | Construction method of basement exterior wall formwork open-free formwork support system |
| CN115125996A (en) * | 2022-06-30 | 2022-09-30 | 陕西帕源路桥建设有限公司 | Underground house construction technology based on assembled combined die |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5983010A (en) * | 1996-01-24 | 1999-11-09 | Jeffrey Earl Murdock | Method of describing a building structure |
| CN204662499U (en) * | 2015-03-09 | 2015-09-23 | 江苏南通三建集团有限公司 | Concrete of basement exterior wall, waterproof, fertile groove integrated construction structure |
| CN105133830A (en) * | 2015-08-24 | 2015-12-09 | 中国建筑第八工程局有限公司 | Formwork reinforcing system replacing wood with steel and construction technology thereof in external wall construction |
| CN107327050A (en) * | 2017-08-28 | 2017-11-07 | 武汉建工集团股份有限公司 | A kind of avoid-dismantle outer wall of basement flange single side formwork device and construction method |
| CN208907304U (en) * | 2018-09-10 | 2019-05-28 | 中建二局第三建筑工程有限公司 | A kind of outer wall formwork of basement system |
| CN111395745A (en) * | 2020-03-16 | 2020-07-10 | 中国建筑第四工程局有限公司 | Basement outer wall single-face formwork supporting system and construction method thereof |
-
2020
- 2020-12-03 CN CN202011405502.4A patent/CN112681332A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5983010A (en) * | 1996-01-24 | 1999-11-09 | Jeffrey Earl Murdock | Method of describing a building structure |
| CN204662499U (en) * | 2015-03-09 | 2015-09-23 | 江苏南通三建集团有限公司 | Concrete of basement exterior wall, waterproof, fertile groove integrated construction structure |
| CN105133830A (en) * | 2015-08-24 | 2015-12-09 | 中国建筑第八工程局有限公司 | Formwork reinforcing system replacing wood with steel and construction technology thereof in external wall construction |
| CN107327050A (en) * | 2017-08-28 | 2017-11-07 | 武汉建工集团股份有限公司 | A kind of avoid-dismantle outer wall of basement flange single side formwork device and construction method |
| CN208907304U (en) * | 2018-09-10 | 2019-05-28 | 中建二局第三建筑工程有限公司 | A kind of outer wall formwork of basement system |
| CN111395745A (en) * | 2020-03-16 | 2020-07-10 | 中国建筑第四工程局有限公司 | Basement outer wall single-face formwork supporting system and construction method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 张力: "图解砌体工程施工细部做法100讲", vol. 1, 30 November 2016, 哈尔滨工业大学出版社, pages: 30 - 33 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113684834A (en) * | 2021-08-11 | 2021-11-23 | 中国建筑第六工程局有限公司 | Construction method of complex environment supporting system |
| CN113684834B (en) * | 2021-08-11 | 2022-08-26 | 中国建筑第六工程局有限公司 | Construction method of complex environment supporting system |
| CN114000445A (en) * | 2021-11-16 | 2022-02-01 | 北京泽通水务建设有限公司 | Construction method for multi-hole side-by-side crossing hidden culvert |
| CN114961254A (en) * | 2022-06-10 | 2022-08-30 | 杭州江润科技有限公司 | Construction method of basement exterior wall formwork open-free formwork support system |
| CN114961254B (en) * | 2022-06-10 | 2024-03-01 | 杭州江润科技有限公司 | Construction method of basement exterior wall formwork opening-free formwork supporting system |
| CN115125996A (en) * | 2022-06-30 | 2022-09-30 | 陕西帕源路桥建设有限公司 | Underground house construction technology based on assembled combined die |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112681332A (en) | Construction method for supporting system by using steel sheet piles in complex environment | |
| US4697955A (en) | Method of constructing reinforced concrete works such as underground galleries, road tunnels, et cetera; pre-fabricated contrete elements for constructing such works | |
| CN207017275U (en) | Recyclable system of deep foundation pit support can be assembled | |
| CN111560962A (en) | Backfill area foundation pit supporting structure and construction method thereof | |
| CN110939455B (en) | Construction method of tunnel portal structure | |
| CN111119198A (en) | A reinforced structure that is used for SMW worker method stake to strut system | |
| CN113863367A (en) | In-situ protection suspension method for existing underground pipeline | |
| CN114673169A (en) | Multi-layer large-span deep foundation pit cover-excavation forward-backward combined construction method for urban core area | |
| CN113074003B (en) | Small clear distance tunnel deformation inhibition method for argillaceous sandstone stratum | |
| CN113417300A (en) | Slope support system and construction method thereof | |
| CN103866982B (en) | A kind of petal art framework construction method | |
| CN110994523B (en) | Method and system for protecting cable | |
| CN110735641B (en) | Construction method of transfer passage of underpass pipeline | |
| CN210766861U (en) | Portal formula building pile foundation underpins structure under narrow and small space | |
| CN215906845U (en) | Large-span vestibule mounting structure in foundation pit | |
| CN110552702B (en) | Underground excavation construction method for assembled corrugated steel plate underground comprehensive pipe gallery | |
| CN113338340A (en) | Reverse construction method for vertical shaft ensuring normal use of existing pipeline | |
| CN220828046U (en) | Support system structure | |
| CN107190757B (en) | The construction method and support system of recyclable system of deep foundation pit support can be assembled | |
| CN113073683A (en) | Temporary suspension device for existing pipeline and construction method | |
| AU2016102393A4 (en) | A Method of constructing a column, a tunnel, and a tunnel made from the method | |
| CN216304711U (en) | Cover and dig normal position of striding super wide ultra-deep power pipe gallery on contrary station and suspend protective structure in midair | |
| CN115198794B (en) | Steel pipe column section reverse construction method based on cover-excavation reverse construction method deep foundation pit engineering | |
| CN213867921U (en) | Cast-in-place mosaic structure of underground pipe gallery superimposed sheet | |
| CN217107050U (en) | Loess crack tunnel supporting construction |
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 |