CN112726572A - Floor wall inserted stiffening column structure and mounting method thereof - Google Patents
Floor wall inserted stiffening column structure and mounting method thereof Download PDFInfo
- Publication number
- CN112726572A CN112726572A CN202011569934.9A CN202011569934A CN112726572A CN 112726572 A CN112726572 A CN 112726572A CN 202011569934 A CN202011569934 A CN 202011569934A CN 112726572 A CN112726572 A CN 112726572A
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- column
- ground wall
- reinforcement cage
- steel wire
- wire ropes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/20—Bulkheads or similar walls made of prefabricated parts and concrete, including reinforced concrete, in situ
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/08—Sinking workpieces into water or soil inasmuch as not provided for elsewhere
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
- E02D19/185—Joints between sheets constituting the sealing aprons
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention provides a structure of a stiffening column inserted in a ground wall and an installation method thereof, aiming at the problem that the conventional construction method of the underground continuous wall can not meet the node and the scheme of the inserted stiffening column, the integral rigidity of a reinforcement cage of the ground wall is enhanced, the deformation is reduced, and meanwhile, the connection between the stiffening column and the reinforcement cage is also enhanced and fixed. Through reinforcing the steel reinforcement cage, optimizing the hoisting point, solve the special node processing condition of strength nature post structure in the interior interpolation of diaphragm wall, solve the diaphragm wall unnecessary that produces because of strength nature post construction and do over again. The method takes the problems of placing of the stiff columns, controlling of verticality, pouring of concrete and the like into consideration, optimizes the stiff columns on the basis of the insertion construction, avoids the phenomenon of repeated reworking, and ensures the construction quality of the ground wall and the stiff columns.
Description
Technical Field
The invention relates to a floor wall internal inserted stiff column structure and an installation method thereof.
Background
Along with the development of building engineering, the building structure form is more and more complicated, and underground structure posts (particularly stiffness posts) are arranged in the underground continuous wall of the enclosure body, so that great difficulty is brought to the construction of the underground continuous wall.
The construction of stiff columns in the ground wall generally comprises two methods, namely, a first insertion method: namely, the stiffening columns and the ground wall reinforcement cages are manufactured together, hoisted and then poured with concrete. According to the method, the steel reinforcement cage and the stiff column are hoisted at one time, concrete pouring is coherent, but the gravity of the steel reinforcement cage is not uniformly distributed, hoisting is difficult, the overall rigidity of the steel reinforcement cage is high in demand, and the positioning accuracy and the verticality of the stiff column are difficult to control. A backward interpolation method: after the floor wall reinforcement cage is adjusted, concrete is poured to a specified height, the stiff columns are adjusted according to the reserved positions, and then the concrete is poured continuously. The requirement on the rigidity of the ground wall reinforcement cage is relatively small, the hoisting is easy, but the concrete tamping is stopped in the midway to hoist the stiff column, so that quality accidents such as concrete layering are easily caused. And in the hoisting process of the stiff column, the problems of blocked downward insertion, difficult positioning and the like of the stiff column are easy to occur.
Disclosure of Invention
The invention aims to provide a floor wall internal inserted stiff column structure and an installation method thereof.
In order to solve the above problems, the present invention provides a floor wall inner insert stiff column structure, comprising:
a ground wall reinforcement cage;
the stiffening columns are connected and fixed in the ground wall reinforcement cage;
the cross steel plate joint is fixedly connected to the ground wall reinforcement cage.
Further, in the above structure, the method further includes: the system comprises a main crane and an auxiliary crane which are connected to the ground wall steel reinforcement cage, wherein the length of the stiff column is shorter than that of the ground wall steel reinforcement cage, and the ground wall steel reinforcement cage comprises a part with the stiff column and a part without the stiff column;
the main crane is connected to the ground wall reinforcement cage of the part with the stiff column, and comprises two rows of steel wire ropes, and each row of steel wire ropes is provided with two steel wire ropes;
the auxiliary crane comprises two rows of steel wire ropes, each row of steel wire ropes comprises 4 steel wire ropes, 2 steel wire ropes in the 4 steel wire ropes in each row are connected to the ground wall steel reinforcement cage of the part with the stiff column, and the rest 2 steel wire ropes in the 4 steel wire ropes in each row are connected to the ground wall steel reinforcement cage of the part without the stiff column.
Further, in the above structure, the method further includes:
a support frame connected to the lower portion of the stiff column;
and the column hooping surrounds and connects the support frame and the stiff column, and the column hooping is connected with the ground wall reinforcement cage.
Furthermore, in the above structure, two conversion trusses are symmetrically arranged between the support frame and the stiff column and between the column stirrups, each conversion truss comprises two conversion truss vertical rods arranged at a preset distance and a conversion truss diagonal rod connecting the two conversion truss vertical rods, and two ends of each conversion truss vertical rod are respectively connected with the column stirrups.
Further, in the above structure, the method further includes: the X-shaped truss inclined rods are arranged on two sides of the column stirrup and are respectively connected with the ground wall reinforcement cage.
According to another aspect of the present invention, there is also provided a method for installing a stiffening column structure in a floor, comprising:
manufacturing a ground wall reinforcement cage;
connecting and fixing the stiff columns in the ground wall reinforcement cage;
and connecting and fixing the cross steel plate joint on the ground wall reinforcement cage.
Further, in the above method, the fixing of the stiff columns in the floor reinforcement cage includes:
setting the length of the stiffening column to be shorter than that of a ground wall reinforcement cage, and dividing the ground wall reinforcement cage into a stiffening column part and a non-stiffening column part;
the installation method further comprises the following steps: the main crane and the auxiliary crane are connected to the ground wall reinforcement cage, wherein the main crane is connected to the part of the ground wall reinforcement cage with the stiff columns and comprises two rows of steel wire ropes, and each row of steel wire ropes comprises two steel wire ropes; the auxiliary crane is arranged to comprise two rows of steel wire ropes, each row of steel wire ropes is provided with 4 steel wire ropes, 2 steel wire ropes in the 4 steel wire ropes in each row are connected to the part of the ground wall steel reinforcement cage with the stiff column, and the rest 2 steel wire ropes in the 4 steel wire ropes in each row are connected to the part of the ground wall steel reinforcement cage without the stiff column.
Further, in the above method, the fixing the stiff columns in the floor reinforcement cage includes:
connecting a support frame with the lower part of the stiff column;
and surrounding and connecting the column stirrups with the support frame and the stiff column, and connecting the column stirrups with the ground wall reinforcement cage.
Further, in the above method, the method further includes:
two conversion trusses are symmetrically arranged among the support frame, the stiff column and the column hooping for signing, each conversion truss comprises two conversion truss vertical rods arranged at a preset distance and a conversion truss inclined rod connected with the two conversion truss vertical rods, and two ends of each conversion truss vertical rod are respectively connected with the column hooping.
Further, in the above method, the method further includes:
and the X-shaped truss inclined rods are arranged on two sides of the column stirrup and are respectively connected with the ground wall reinforcement cage.
Compared with the prior art, the method aims at the problem that the conventional construction method of the underground continuous wall cannot meet the node and scheme for inserting the stiff columns, the overall rigidity of the ground wall steel reinforcement cage is enhanced, the deformation is reduced, and meanwhile, the connection between the stiff columns and the steel reinforcement cage is also reinforced and fixed. Through reinforcing the steel reinforcement cage, optimizing the hoisting point, solve the special node processing condition of strength nature post structure in the interior interpolation of diaphragm wall, solve the diaphragm wall unnecessary that produces because of strength nature post construction and do over again. The method takes the problems of placing of the stiff columns, controlling of verticality, pouring of concrete and the like into consideration, optimizes the stiff columns on the basis of the insertion construction, avoids the phenomenon of repeated reworking, and ensures the construction quality of the ground wall and the stiff columns.
Drawings
FIG. 1 is a block diagram of a rigid column structure inserted into a ground wall according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of the installation of a stiff column of one embodiment of the present invention;
fig. 3 is a schematic illustration of the reinforcement of a stiff column according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1, the present invention provides a structure of a stiffening column inserted into a floor, comprising:
a ground wall reinforcement cage 1;
the stiffening columns 2 are fixedly connected in the ground wall reinforcement cage 1;
and the cross steel plate joint 3 is fixedly connected to the ground wall reinforcement cage 1.
The floor wall reinforcement cage, the stiff column and the cross steel plate joint are manufactured and hoisted together, and positioning accuracy and verticality of the stiff column and smooth concrete pouring construction can be effectively guaranteed compared with rear-inserting construction. The invention avoids the rework phenomenon caused by disordered construction procedures and missing construction process.
As shown in fig. 1, in an embodiment of the structure of inserting stiffening columns into a ground wall, a main crane 4 and an auxiliary crane 5 are connected to the ground wall reinforcement cage, wherein the length of the stiffening columns 3 is shorter than that of the ground wall reinforcement cage 1, and the ground wall reinforcement cage 1 includes portions with stiffening columns and portions without stiffening columns;
the main crane 4 is connected to the part of the ground wall reinforcement cage with the stiff columns, and comprises two rows of steel wire ropes, and each row of steel wire ropes is provided with two steel wire ropes;
the auxiliary crane 5 comprises two rows of steel wire ropes, each row of steel wire ropes comprises 4 steel wire ropes, 2 steel wire ropes in 4 steel wire ropes in each row are connected to the ground wall steel reinforcement cage of the part with the stiff column, and the rest 2 steel wire ropes in 4 steel wire ropes in each row are connected to the ground wall steel reinforcement cage of the part without the stiff column.
In the method, the overall weight of the steel reinforcement cage is considered, and the hoisting points are reasonably arranged according to the factors such as the width of the steel reinforcement cage, the position of the stiff column, the construction process and the like.
As shown in fig. 2, in an embodiment of the present invention, the structure of a rigid column inserted into a ground wall further includes:
a support frame 6 connected to the lower portion of the stiff column 1;
and the column stirrups 7 surround and connect the support frames 6 and the stiff columns 2, and the column stirrups 7 are connected with the ground wall reinforcement cage 1.
In order to solve the problem that the relative position of the stiff column and the column hooping is difficult to fix, the support frame is made of square steel, and the support frame and the lower row of main reinforcements of the stiff column are fixed in a spot welding mode to support the stiff column.
As shown in fig. 3, in an embodiment of the floor wall internal inserted stiff column structure of the present invention, two conversion trusses are symmetrically disposed between the support frame 6 and the stiff column 2 and the column stirrup 7, each conversion truss includes two conversion truss vertical rods 8 disposed at a predetermined distance and a conversion truss diagonal rod 9 connecting the two conversion truss vertical rods 8, and two ends of each conversion truss vertical rod 8 are respectively connected to the column stirrup 7.
The column ribs are wrapped outside the stiff column densely, the transverse truss diagonal rods cannot penetrate through the stiff column, the rigidity of the transverse truss at the stiff column part is insufficient, and two converted trusses are arranged at the part to replace the transverse truss diagonal rods.
As shown in fig. 3, in an embodiment of the present invention, the structure of a rigid column inserted into a ground wall further includes: the X-shaped truss inclined rods 10 are arranged on two sides of the column stirrups, and the X-shaped truss inclined rods 10 are respectively connected with the ground wall reinforcement cage 1.
All truss diagonal rods are arranged in an X shape, so that the overall rigidity of the reinforcement cage is enhanced, and deformation is reduced.
According to another aspect of the present invention, there is also provided a method for installing a stiffening column structure in a floor, comprising:
manufacturing a ground wall reinforcement cage;
connecting and fixing the stiff columns in the ground wall reinforcement cage;
and connecting and fixing the cross steel plate joint on the ground wall reinforcement cage.
Further, in the above method, the fixing of the stiff columns in the floor reinforcement cage includes:
setting the length of the stiffening column to be shorter than that of a ground wall reinforcement cage, and dividing the ground wall reinforcement cage into a stiffening column part and a non-stiffening column part;
the installation method further comprises the following steps: the main crane and the auxiliary crane are connected to the ground wall reinforcement cage, wherein the main crane is connected to the part of the ground wall reinforcement cage with the stiff columns and comprises two rows of steel wire ropes, and each row of steel wire ropes comprises two steel wire ropes; the auxiliary crane is arranged to comprise two rows of steel wire ropes, each row of steel wire ropes is provided with 4 steel wire ropes, 2 steel wire ropes in the 4 steel wire ropes in each row are connected to the part of the ground wall steel reinforcement cage with the stiff column, and the rest 2 steel wire ropes in the 4 steel wire ropes in each row are connected to the part of the ground wall steel reinforcement cage without the stiff column.
Further, in the above method, the fixing the stiff columns in the floor reinforcement cage includes:
connecting a support frame with the lower part of the stiff column;
and surrounding and connecting the column stirrups with the support frame and the stiff column, and connecting the column stirrups with the ground wall reinforcement cage.
Further, in the above method, the method further includes:
two conversion trusses are symmetrically arranged among the support frame, the stiff column and the column hooping for signing, each conversion truss comprises two conversion truss vertical rods arranged at a preset distance and a conversion truss inclined rod connected with the two conversion truss vertical rods, and two ends of each conversion truss vertical rod are respectively connected with the column hooping.
Further, in the above method, the method further includes:
and the X-shaped truss inclined rods are arranged on two sides of the column stirrup and are respectively connected with the ground wall reinforcement cage.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It will be apparent to those skilled in the art that various changes and modifications may be made in the invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides a strength post structure is inserted to basement, its characterized in that includes:
a ground wall reinforcement cage;
the stiffening columns are connected and fixed in the ground wall reinforcement cage;
the cross steel plate joint is fixedly connected to the ground wall reinforcement cage.
2. The ground wall insert stiffening column structure of claim 1, further comprising: the system comprises a main crane and an auxiliary crane which are connected to the ground wall steel reinforcement cage, wherein the length of the stiff column is shorter than that of the ground wall steel reinforcement cage, and the ground wall steel reinforcement cage comprises a part with the stiff column and a part without the stiff column;
the main crane is connected to the ground wall reinforcement cage of the part with the stiff column, and comprises two rows of steel wire ropes, and each row of steel wire ropes is provided with two steel wire ropes;
the auxiliary crane comprises two rows of steel wire ropes, each row of steel wire ropes comprises 4 steel wire ropes, 2 steel wire ropes in the 4 steel wire ropes in each row are connected to the ground wall steel reinforcement cage of the part with the stiff column, and the rest 2 steel wire ropes in the 4 steel wire ropes in each row are connected to the ground wall steel reinforcement cage of the part without the stiff column.
3. The ground wall insert stiffening column structure of claim 1, further comprising:
a support frame connected to the lower portion of the stiff column;
and the column hooping surrounds and connects the support frame and the stiff column, and the column hooping is connected with the ground wall reinforcement cage.
4. A rigid column structure inserted into a ground wall according to claim 3, wherein two conversion trusses are symmetrically arranged between the support frame and the rigid column and the column stirrups, each conversion truss comprises two conversion truss vertical rods arranged at a preset distance and a conversion truss diagonal rod connecting the two conversion truss vertical rods, and both ends of each conversion truss vertical rod are respectively connected with the column stirrups.
5. The ground wall insert stiffening column structure of claim 3, further comprising: the X-shaped truss inclined rods are arranged on two sides of the column stirrup and are respectively connected with the ground wall reinforcement cage.
6. A method for installing a stiffening column structure inserted into a ground wall is characterized by comprising the following steps:
manufacturing a ground wall reinforcement cage;
connecting and fixing the stiff columns in the ground wall reinforcement cage;
and connecting and fixing the cross steel plate joint on the ground wall reinforcement cage.
7. The method of installing a structure of stiffening columns inserted into a ground wall according to claim 6, wherein the connecting and fixing of the stiffening columns in the reinforcement cage of the ground wall comprises:
setting the length of the stiffening column to be shorter than that of a ground wall reinforcement cage, and dividing the ground wall reinforcement cage into a stiffening column part and a non-stiffening column part;
the installation method further comprises the following steps: the main crane and the auxiliary crane are connected to the ground wall reinforcement cage, wherein the main crane is connected to the part of the ground wall reinforcement cage with the stiff columns and comprises two rows of steel wire ropes, and each row of steel wire ropes comprises two steel wire ropes; the auxiliary crane is arranged to comprise two rows of steel wire ropes, each row of steel wire ropes is provided with 4 steel wire ropes, 2 steel wire ropes in the 4 steel wire ropes in each row are connected to the part of the ground wall steel reinforcement cage with the stiff column, and the rest 2 steel wire ropes in the 4 steel wire ropes in each row are connected to the part of the ground wall steel reinforcement cage without the stiff column.
8. The method of installing a structure of stiffening columns inserted into a ground wall according to claim 6, wherein the connecting and fixing of the stiffening columns in the reinforcement cage of the ground wall comprises:
connecting a support frame with the lower part of the stiff column;
and surrounding and connecting the column stirrups with the support frame and the stiff column, and connecting the column stirrups with the ground wall reinforcement cage.
9. A method of installing a rigid column structure in a ground wall as set forth in claim 8, further comprising:
two conversion trusses are symmetrically arranged among the support frame, the stiff column and the column hooping for signing, each conversion truss comprises two conversion truss vertical rods arranged at a preset distance and a conversion truss inclined rod connected with the two conversion truss vertical rods, and two ends of each conversion truss vertical rod are respectively connected with the column hooping.
10. A method of installing a rigid column structure in a ground wall as set forth in claim 8, further comprising:
and the X-shaped truss inclined rods are arranged on two sides of the column stirrup and are respectively connected with the ground wall reinforcement cage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011569934.9A CN112726572A (en) | 2020-12-25 | 2020-12-25 | Floor wall inserted stiffening column structure and mounting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011569934.9A CN112726572A (en) | 2020-12-25 | 2020-12-25 | Floor wall inserted stiffening column structure and mounting method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112726572A true CN112726572A (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011569934.9A Pending CN112726572A (en) | 2020-12-25 | 2020-12-25 | Floor wall inserted stiffening column structure and mounting method thereof |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10195866A (en) * | 1997-01-09 | 1998-07-28 | Shimizu Corp | Underground continuous wall |
| CN202466644U (en) * | 2012-03-16 | 2012-10-03 | 中建八局第三建设有限公司 | Profile steel concrete column type connector |
| JP2013028971A (en) * | 2011-07-29 | 2013-02-07 | Taisei Corp | Reinforcement cage, underground concrete structure construction method using reinforcement cage and underground concrete structure |
| CN105937291A (en) * | 2016-06-21 | 2016-09-14 | 四川省建筑设计研究院 | Steel-reinforced concrete column with stud structure and high length-width ratio and installation method thereof |
| CN206408608U (en) * | 2017-01-03 | 2017-08-15 | 明达海洋工程有限公司 | Diaphram wall reinforcement cage structure |
| CN109736295A (en) * | 2019-01-15 | 2019-05-10 | 中铁第四勘察设计院集团有限公司 | A kind of building structure vertical supporting system and its construction method |
| CN109969946A (en) * | 2019-04-09 | 2019-07-05 | 西南林业大学 | A kind of diaphram wall steel reinforcement cage hoisting and hanging construction safety method |
| CN110847156A (en) * | 2019-11-27 | 2020-02-28 | 中铁九局集团第四工程有限公司 | Steel reinforcement cage suitable for underground diaphragm wall of air shaft and use method |
| CN111908320A (en) * | 2020-08-11 | 2020-11-10 | 中国建筑第八工程局有限公司 | Method for quickly converting steel wire rope for hoisting ultra-deep underground continuous wall |
| CN112030947A (en) * | 2020-08-25 | 2020-12-04 | 武汉安振岩土工程有限公司 | Construction method of T-shaped load-bearing underground continuous wall |
| CN212175751U (en) * | 2020-03-27 | 2020-12-18 | 中铁四局集团第二工程有限公司 | Integrated steel reinforcement cage for combined construction of underground continuous wall and cast-in-situ bored pile |
-
2020
- 2020-12-25 CN CN202011569934.9A patent/CN112726572A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10195866A (en) * | 1997-01-09 | 1998-07-28 | Shimizu Corp | Underground continuous wall |
| JP2013028971A (en) * | 2011-07-29 | 2013-02-07 | Taisei Corp | Reinforcement cage, underground concrete structure construction method using reinforcement cage and underground concrete structure |
| CN202466644U (en) * | 2012-03-16 | 2012-10-03 | 中建八局第三建设有限公司 | Profile steel concrete column type connector |
| CN105937291A (en) * | 2016-06-21 | 2016-09-14 | 四川省建筑设计研究院 | Steel-reinforced concrete column with stud structure and high length-width ratio and installation method thereof |
| CN206408608U (en) * | 2017-01-03 | 2017-08-15 | 明达海洋工程有限公司 | Diaphram wall reinforcement cage structure |
| CN109736295A (en) * | 2019-01-15 | 2019-05-10 | 中铁第四勘察设计院集团有限公司 | A kind of building structure vertical supporting system and its construction method |
| CN109969946A (en) * | 2019-04-09 | 2019-07-05 | 西南林业大学 | A kind of diaphram wall steel reinforcement cage hoisting and hanging construction safety method |
| CN110847156A (en) * | 2019-11-27 | 2020-02-28 | 中铁九局集团第四工程有限公司 | Steel reinforcement cage suitable for underground diaphragm wall of air shaft and use method |
| CN212175751U (en) * | 2020-03-27 | 2020-12-18 | 中铁四局集团第二工程有限公司 | Integrated steel reinforcement cage for combined construction of underground continuous wall and cast-in-situ bored pile |
| CN111908320A (en) * | 2020-08-11 | 2020-11-10 | 中国建筑第八工程局有限公司 | Method for quickly converting steel wire rope for hoisting ultra-deep underground continuous wall |
| CN112030947A (en) * | 2020-08-25 | 2020-12-04 | 武汉安振岩土工程有限公司 | Construction method of T-shaped load-bearing underground continuous wall |
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Application publication date: 20210430 |