CN107653905B - Full-package waterproof structure for reverse construction method building and construction method thereof - Google Patents
Full-package waterproof structure for reverse construction method building and construction method thereof Download PDFInfo
- Publication number
- CN107653905B CN107653905B CN201711019502.9A CN201711019502A CN107653905B CN 107653905 B CN107653905 B CN 107653905B CN 201711019502 A CN201711019502 A CN 201711019502A CN 107653905 B CN107653905 B CN 107653905B
- Authority
- CN
- China
- Prior art keywords
- waterproof
- foundation pit
- connecting part
- construction
- temporary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a full-wrap waterproof structure for a reverse construction method building and a construction method thereof, wherein the full-wrap waterproof structure comprises a floor slab and a foundation pit support structure, wherein the edge of the floor slab is provided with a connecting part to be connected with an outer wall and a temporary structural beam symmetrically arranged with the connecting part; the outward surface of the temporary construction beam is coplanar with the connecting part, is connected with the foundation pit support structure and is provided with a waterproof coiled material; the lower end of the laying range of the waterproof coiled material extends out of the lower end of the connecting part, and the upper end of the waterproof coiled material covers the lower half part of the temporary construction beam; in the construction, firstly, a temporary construction beam is additionally arranged on a floor slab to be connected with a foundation pit support structure, a waterproof coiled material is pre-paved at the joint of the floor slab and the foundation pit support structure, and a certain lap joint length is reserved; after the lower outer wall structure is built again, the vertical supporting system completes underpinning, and the concrete of the additionally arranged temporary construction beam is chiseled; and well lapping the waterproof roll in the subsequent construction. The invention realizes the full-wrapping waterproof at the joint of the floor slab and the supporting structure in the construction by adopting the reverse construction method.
Description
Technical Field
The invention relates to the technical field of building reverse construction, in particular to a full-covered waterproof structure for a reverse construction method building and a construction method thereof.
Background
In underground engineering, reinforced concrete structures are still dominant. Although the underground waterproof concrete adopts certain technical measures and is added with various additives, cracks after construction are still difficult to avoid, so that the underground waterproof concrete is definitely specified in the section 4.1.7 of the underground engineering waterproof technical specification GB 50108-2008: "the width of the slit should not be larger than 0.2mm and not be through". It should be understood that this article provides for safety in engineering construction, but the consequences are difficult to imagine without taking into account other waterproofing measures. Therefore, in order to inhibit and reduce the leakage of concrete and effectively avoid or reduce the corrosion of carbonate, chloride ions and the like in underground water, more and more underground engineering projects are considered to adopt a full-enclosed waterproof design.
The traditional deep foundation pit is generally constructed from bottom to top by adopting an open cut-and-cut forward construction method, and along with the large-scale construction of subways and underground projects, the underground project reverse construction method can effectively control the deformation of the surrounding environment and reduce the influence on the ground time, so that the underground project reverse construction method is gradually popularized nationwide. The reverse construction method is that the basement of each layer below the ground adopts a top-down construction sequence, and the horizontal rigidity and the compressive strength of the underground floor slab structure are utilized to support the foundation pit, so that the earth excavation of the foundation pit is ensured.
Because basement floor structure is under construction from the top down, the earthwork has not yet been excavated this moment, and the outer wall and the structure post of basement can not pour before floor structure construction and accomplish, consequently must set up vertical interim support pile foundation for the structure post, and the floor of outer wall department then directly is connected with the supporting construction of foundation ditch both sides, regards supporting construction as vertical brace.
Because the reverse floor slab is connected with the supporting structure through the reinforcing steel bars, the waterproof material at the node is cut off by the whole section of the reinforcing steel bars, and the full-wrapping waterproof can not be really realized.
Therefore, how to effectively solve the above problems and further realize the full-package waterproof of the underground structure in the reverse construction method is a difficult problem to be solved urgently in the engineering industry at present.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention provides a full-enclosed waterproof structure for a reverse building and a construction method thereof, which achieve one of the objectives of full-enclosed waterproofing at the junction of a floor slab and a supporting structure in the case of constructing a underground structure of a building by a reverse method.
In order to achieve the purpose, the invention discloses a full-package waterproof structure for a reverse construction method building, which comprises a floor slab and a foundation pit enclosure structure, wherein a connecting part to be connected with an outer wall is arranged below the edge of the floor slab, the connecting part is vertical to the floor slab, and the outward surface of the connecting part is connected with the foundation pit enclosure structure.
A temporary construction beam is symmetrically arranged on the upper surface of the edge of the floor slab and the connecting part; the outward surface of the temporary construction beam is coplanar with the connecting part, and the outward surface of the temporary construction beam is connected with the foundation pit support structure.
Waterproof coiled materials are arranged between the temporary construction beam and the foundation pit support structure and between the connecting part and the foundation pit support structure; the lower end of the laying range of the waterproof roll extends out of the lower end of the connecting part, and the upper end of the waterproof roll covers the lower half part of the temporary construction beam.
And when the underground structure of the building is completed, removing the concrete part of the temporary construction beam after the floor slab outer wall structure is rebuilt, exposing the upper end of the lower half part of the temporary construction beam covered by the waterproof coiled material, and overlapping with other waterproof structures in the subsequent construction process.
Preferably, a plurality of L-shaped steel bars are arranged at positions of the foundation pit support structure corresponding to the temporary construction beams, one bent ends of the L-shaped steel bars are embedded in the foundation pit support structure, and the other ends of the L-shaped steel bars transversely extend out of the foundation pit support structure towards the temporary construction beams; and one end of the L-shaped steel bar extending out of the foundation pit support structure is connected with the steel bar structure in the temporary construction beam.
Preferably, the steel bars in the connecting part are connected with the steel bar structures in the temporary construction beams to form a whole, and the whole is the vertical steel bar of the outer wall of the building.
Preferably, the lower end of the connecting part is provided with a steel bar connector which is connected with steel bars poured in the connecting part.
The invention also provides a construction method of the full-package waterproof structure for the reverse building method, which comprises the following steps:
A. additionally arranging a temporary construction beam at the edge of the to-be-built outer wall on the floor slab in the excavation stage of the foundation pit, wherein the outer side surface of the temporary construction beam is coplanar with the outer side surface of the connecting part of the floor slab;
B. a waterproof coiled material is arranged on the coplanar outer side surface of the temporary structural beam and the connecting part, the coverage area of the waterproof coiled material is larger than that of the outer side surface of the connecting part, and the upper end of the waterproof coiled material covers the lower half part of the outer side surface of the temporary structural beam;
C. building a foundation pit enclosure structure, and connecting the foundation pit enclosure structure with the coplanar outer side surfaces of the temporary construction beam and the connecting part;
D. excavating a foundation pit, and building the outer wall after the underground structure of the building is built, so as to complete underpinning of the vertical supporting system;
E. and chiseling the temporary construction beam, and well lapping the temporary construction beam with the waterproof roll exposed and extending out of the connecting part when a waterproof layer is manufactured.
Preferably, in the step E, a concrete portion of the temporary construction beam is chiseled, and the vertical reinforcing bars in the temporary construction beam are used as the vertical reinforcing bars of the exterior wall of the reclamation.
The invention has the beneficial effects that:
1) The structure is stressed clearly.
Pre-buried "U" shaped steel bar among the supporting construction breaks straight "L" shape with "U" shaped steel bar one end during the construction off with the fingers and thumb, is connected with the interim structure roof beam of contrary doing floor department newly-increased to satisfy the requirement that underground floor slab structure bore horizontal load, supporting construction shares the vertical load of floor.
2) The waterproof measure is simple in structure.
Waterproof coiled materials are pre-paved at the joint of the reverse construction floor slab and the supporting structure, and certain lap joint length is reserved so as to facilitate connection of the waterproof coiled materials in the later stage of the back construction. The waterproof material and the structure are consistent with the waterproof of the standard section outer wall, the construction is convenient, and the input cost is not increased basically.
3) The construction and the design of the internal structure are not influenced.
Set up the vertical reinforcing bar of outer wall in the interim tectonic roof beam that increases newly, remain this reinforcing bar during the later stage chiseling, all have no influence to the pouring and the design of outer wall.
The waterproof node effectively expands the construction means of underground engineering, promotes the technical progress of the industry, and has good economic and social benefits. The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
Fig. 1 shows a schematic structural diagram of an embodiment of the present invention.
Detailed Description
Examples
As shown in fig. 1, the fully-enclosed waterproof structure for the reverse building method building comprises a floor slab 1 and a foundation pit enclosure structure 3, wherein a connecting part 2 to be connected with an outer wall is arranged below the edge of the floor slab 1, the connecting part 2 is perpendicular to the floor slab 1, and one surface of the connecting part 2, which faces outwards, is connected with the foundation pit enclosure structure 3.
Wherein, a temporary construction beam 5 is arranged on the upper surface of the edge of the floor slab 1 and is symmetrical to the connecting part 2; the outward surface of the temporary construction beam 5 is coplanar with the connecting part 2, and the outward surface of the temporary construction beam 5 is connected with the foundation pit enclosure structure 3.
Waterproof coiled materials 4 are arranged between the temporary construction beam 5 and the foundation pit support structure 3 and between the connecting part 2; the lower end of the range of the waterproof sheet 4 extends beyond the lower end of the connecting portion 2, and the upper end covers the lower half of the temporary structural beam 5.
When the underground structure of the building is finished and the outer wall structure of the floor slab 1 is built again, the concrete part of the temporary construction beam 5 is removed, and the waterproof coiled material 4 is exposed to cover the upper end of the lower half part of the temporary construction beam 5 and is used for being lapped with other waterproof structures in the subsequent construction process.
In some embodiments, a plurality of L-shaped steel bars 31 are arranged at positions of the foundation pit support structure 3 corresponding to the temporary construction beams 5, one bent end of each of the L-shaped steel bars 31 is embedded in the foundation pit support structure 3, and the other end of each of the L-shaped steel bars 31 transversely extends out of the foundation pit support structure 3 towards the temporary construction beams 5; one end of the L-shaped steel bar 31 extending out of the foundation pit enclosure structure 3 is connected with the steel bar structure 51 in the temporary construction beam 5.
In some embodiments, the steel bars in the connection part 2 are connected with the steel bar structures 51 in the temporary construction beam 5 to form a vertical steel bar of the outer wall of the building as a whole.
In some embodiments, the lower end of the connector 2 is provided with a connector 21 for connecting with a reinforcement bar cast inside the connector 2.
The invention also provides a construction method of the full-covered waterproof structure for the reverse building method, which comprises the following steps:
A. the method comprises the steps that a temporary construction beam 5 is additionally arranged at the edge of an outer wall to be built back on a floor slab 1 in a foundation pit excavation stage, and the outer side surface of the temporary construction beam 5 is coplanar with the outer side surface of a connecting part 2 of the floor slab 1.
B. A waterproof coiled material 4 is arranged on the coplanar outer side surface of the temporary structural beam 5 and the connecting part 2, the coverage area of the waterproof coiled material 4 is larger than that of the outer side surface of the connecting part 2, and the upper end of the waterproof coiled material 4 covers the lower half part of the outer side surface of the temporary structural beam 5.
In the construction, firstly, a temporary construction beam 5 is additionally arranged above a floor slab 1 in a foundation pit excavation stage to be connected with a foundation pit support structure 3, a waterproof coiled material 4 is pre-paved at the joint of the floor slab 1 and the foundation pit support structure 3, and a certain lap joint length is reserved.
C. And (5) building a foundation pit enclosure structure, and connecting the foundation pit enclosure structure with the coplanar outer side surfaces of the temporary construction beam 5 and the connecting part 2.
D. And excavating the foundation pit, and building an outer wall after the underground structure of the building is built, so as to complete underpinning of the vertical supporting system.
And after the lower outer wall structure is built again, the vertical supporting system completes underpinning, and the additionally arranged concrete of the temporary construction beam 5 is chiseled.
E. The temporary structural beam 5 is chiseled to form a chiseled surface 52 flush with the floor slab, and when the waterproof layer is manufactured, the chiseled surface is overlapped with the waterproof roll 4 exposed and extended outside the connecting part 2.
And finally, the joint is lapped with the reserved waterproof coiled material 4 during construction, so that the full-wrapping waterproof of the joint is realized.
In some embodiments, in step E, the concrete part of the temporary construction beam 5 is chiseled, and the vertical steel bars in the temporary construction beam 5 are used as the vertical steel bars of the exterior wall of the back construction.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection determined by the claims.
Claims (6)
1. The full-package waterproof structure for the reverse construction method building comprises a floor (1) and a foundation pit support structure (3), wherein a connecting part (2) to be connected with an outer wall is arranged below the edge of the floor (1), the connecting part (2) is perpendicular to the floor (1), and the outward surface of the connecting part (2) is connected with the foundation pit support structure (3); the method is characterized in that:
a temporary construction beam (5) is symmetrically arranged on the upper surface of the edge of the floor slab (1) and the connecting part (2); the outward surface of the temporary construction beam (5) is coplanar with the connecting part (2), and the outward surface of the temporary construction beam (5) is connected with the foundation pit enclosure structure (3);
waterproof coiled materials (4) are arranged between the temporary construction beam (5) and the foundation pit support structure (3) and between the connecting part (2); the lower end of the laying range of the waterproof coiled material (4) extends out of the lower end of the connecting part (2), and the upper end of the laying range covers the lower half part of the temporary construction beam (5);
when the underground structure of the building is completed, after the outer wall structure of the floor slab (1) is rebuilt, the concrete part of the temporary construction beam (5) is removed, and the waterproof coiled material (4) is exposed to cover the upper end of the lower half part of the temporary construction beam (5) and is used for being lapped with other waterproof structures in the subsequent construction process.
2. The all-in-one waterproof construction structure for a reverse construction method building according to claim 1, wherein: a plurality of L-shaped steel bars (31) are arranged at the position, corresponding to the temporary construction beam (5), of the foundation pit enclosure structure (3), one bent end of each L-shaped steel bar (31) is embedded in the foundation pit enclosure structure (3), and the other end of each L-shaped steel bar transversely extends out of the foundation pit enclosure structure (3) towards the temporary construction beam (5); one end of the L-shaped steel bar (31) extending out of the foundation pit support structure (3) is connected with a steel bar structure (51) in the temporary construction beam (5).
3. The all-in-one waterproof construction structure for a reverse construction method building according to claim 2, wherein: and the steel bars in the connecting part (2) are connected with the steel bar structures (51) in the temporary construction beams (5) to form a whole body, namely the vertical steel bars of the outer wall of the building.
4. The all-in-one waterproof construction structure for a reverse construction method building according to claim 1, wherein: the lower end of the connecting portion (2) is provided with a steel bar connector (21) which is connected with steel bars poured in the connecting portion (2).
5. The construction method of the full-covered waterproof structure for the reverse construction method building comprises the following steps:
A. additionally arranging a temporary construction beam (5) at the edge of an outer wall to be built back on a floor slab (1) in a foundation pit excavation stage, wherein the outer side surface of the temporary construction beam (5) is coplanar with the outer side surface of a connecting part (2) of the floor slab (1);
B. a waterproof coiled material (4) is arranged on the coplanar outer side surface of the temporary construction beam (5) and the connecting part (2), the coverage range of the waterproof coiled material (4) is larger than that of the outer side surface of the connecting part (2), and the upper end of the waterproof coiled material (4) covers the lower half part of the outer side surface of the temporary construction beam (5);
C. building a foundation pit support structure, and connecting the foundation pit support structure with the coplanar outer side surfaces of the temporary construction beam (5) and the connecting part (2);
D. excavating a foundation pit, and building the outer wall after the underground structure of the building is built, so as to complete underpinning of the vertical supporting system;
E. and chiseling the temporary construction beam (5), and when the waterproof layer is manufactured, overlapping the waterproof roll (4) exposed and extending out of the connecting part (2).
6. The construction method of the all-in-one waterproof construction structure for the reverse construction method building according to claim 5, wherein: in the step E, the concrete part of the temporary construction beam (5) is chiseled off, and the vertical steel bars in the temporary construction beam (5) are used as the vertical steel bars of the external wall of the back construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711019502.9A CN107653905B (en) | 2017-10-27 | 2017-10-27 | Full-package waterproof structure for reverse construction method building and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711019502.9A CN107653905B (en) | 2017-10-27 | 2017-10-27 | Full-package waterproof structure for reverse construction method building and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107653905A CN107653905A (en) | 2018-02-02 |
| CN107653905B true CN107653905B (en) | 2023-03-10 |
Family
ID=61095151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711019502.9A Active CN107653905B (en) | 2017-10-27 | 2017-10-27 | Full-package waterproof structure for reverse construction method building and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107653905B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07150579A (en) * | 1993-11-26 | 1995-06-13 | Takenaka Komuten Co Ltd | Floor construction method in inversely driving construction method |
| CN104088295A (en) * | 2014-06-12 | 2014-10-08 | 广州市市政工程设计研究院 | Embedded connection structure of enclosure wall and medium plate for cover and excavation top-down method as well as construction method of embedded connection structure |
| CN105178357A (en) * | 2015-07-16 | 2015-12-23 | 中国建筑股份有限公司 | Prefabricated subsurface structure under foundation trench open cutting condition and construction method for prefabricated subsurface structure under foundation trench open cutting condition |
| CN105970976A (en) * | 2016-07-26 | 2016-09-28 | 华东建筑设计研究院有限公司 | Vertical connection structure for supporting row piles and main underground structure |
| CN106049538A (en) * | 2016-08-24 | 2016-10-26 | 中铁隧道勘测设计院有限公司 | Reverse-building-method underground engineering building envelope crown beam anti-floating node |
| CN207392240U (en) * | 2017-10-27 | 2018-05-22 | 上海市城市建设设计研究总院（集团）有限公司 | For the full bag water proof structure structure of contrary sequence method building |
-
2017
- 2017-10-27 CN CN201711019502.9A patent/CN107653905B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07150579A (en) * | 1993-11-26 | 1995-06-13 | Takenaka Komuten Co Ltd | Floor construction method in inversely driving construction method |
| CN104088295A (en) * | 2014-06-12 | 2014-10-08 | 广州市市政工程设计研究院 | Embedded connection structure of enclosure wall and medium plate for cover and excavation top-down method as well as construction method of embedded connection structure |
| CN105178357A (en) * | 2015-07-16 | 2015-12-23 | 中国建筑股份有限公司 | Prefabricated subsurface structure under foundation trench open cutting condition and construction method for prefabricated subsurface structure under foundation trench open cutting condition |
| CN105970976A (en) * | 2016-07-26 | 2016-09-28 | 华东建筑设计研究院有限公司 | Vertical connection structure for supporting row piles and main underground structure |
| CN106049538A (en) * | 2016-08-24 | 2016-10-26 | 中铁隧道勘测设计院有限公司 | Reverse-building-method underground engineering building envelope crown beam anti-floating node |
| CN207392240U (en) * | 2017-10-27 | 2018-05-22 | 上海市城市建设设计研究总院（集团）有限公司 | For the full bag water proof structure structure of contrary sequence method building |
Non-Patent Citations (1)
| Title |
|---|
| 中国美术馆站外挂厅结构盖挖逆作法设计要点探讨;李立等;《隧道建设》;20131230(第12期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107653905A (en) | 2018-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107542108B (en) | A kind of reverse construction method of building basement structure | |
| JP5584542B2 (en) | Ground deformation prevention method and underground structure construction method using the same | |
| CN102966114A (en) | Tower crane foundation structure and construction method thereof | |
| KR100862977B1 (en) | Precast concrete file and method for constructing thereof | |
| CN103015456A (en) | Rapid pit-in-pit form erecting method in foundation slab of buried concrete structure | |
| CN104264683B (en) | Building concave shape ultra-deep foundation pit subregion supporting method is protected for three around literary composition | |
| CN101949226B (en) | Cross construction method for large pool body | |
| CN104775439B (en) | A kind of pattern foundation pit supporting structure sealing integral structure and its construction method | |
| CN102839672A (en) | Foundation pit supporting method for preventing displacement limit exceeding of soft base cement mixing pile | |
| CN212801564U (en) | Foundation ditch steel sheet pile supporting construction | |
| CN114457852A (en) | Basement exterior wall post-cast strip U-shaped concrete precast slab plugging method | |
| CN108385693A (en) | A kind of waiting for anchor rod support method and support system for basement supporting by stages | |
| CN207727603U (en) | Big cushion cap deep basal pit formwork supporting system | |
| CN204645093U (en) | Poured band of outer wall of basement advanced processing constructs | |
| CN107653905B (en) | Full-package waterproof structure for reverse construction method building and construction method thereof | |
| CN207392240U (en) | For the full bag water proof structure structure of contrary sequence method building | |
| JPH08269984A (en) | Construction of basement in outside waterproofing construction method | |
| CN106638670B (en) | Half prefabricated piping lane and construction method | |
| CN106498951B (en) | A kind of shaft excavation construction method | |
| CN104846837A (en) | Construction method for ultra-deep well pit in surface drainage foundation pit | |
| KR20170035321A (en) | Retaining wall construction method and retaining wall structure by the method | |
| CN109763518A (en) | A kind of construction method of basement post-pouring zone | |
| JP3091859B2 (en) | Piling method for shafts with openings at the top | |
| JP7362447B2 (en) | How to build buildings | |
| JP4344733B2 (en) | Seismic reinforcement structure for existing pile foundation structures |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |