CN115467320B - Construction method and device for joint of underground diaphragm wall - Google Patents
Construction method and device for joint of underground diaphragm wall Download PDFInfo
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- CN115467320B CN115467320B CN202211284633.0A CN202211284633A CN115467320B CN 115467320 B CN115467320 B CN 115467320B CN 202211284633 A CN202211284633 A CN 202211284633A CN 115467320 B CN115467320 B CN 115467320B
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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
- E02D5/18—Bulkheads or similar walls made solely of 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
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- 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
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/20—Placing by pressure or pulling power
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- General Engineering & Computer Science (AREA)
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- General Life Sciences & Earth Sciences (AREA)
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- Environmental & Geological Engineering (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention discloses a construction method and a construction device for a ground connecting wall joint, comprising a fixed rod arranged between a first ground connecting wall joint and a second ground connecting wall joint, wherein a first storage cavity and a second storage cavity are respectively formed in the fixed rod, a first guide groove is formed in the inner wall of the first storage cavity, a first guide block is sleeved on the sliding sleeve of the first guide groove, an inserting rod is fixedly connected between the two first guide blocks, a storage groove is formed in the top wall of the second storage cavity, a spring is welded in the storage groove, a movable rod which is movably abutted against the inserting rod is welded on the spring, a limiting rod is rotatably connected on the fixed rod, a traction rod is connected between the limiting rod and the movable rod, the ground connecting wall joints on two sides of the limiting rod can be locked and fixed through a fixing mechanism, the stability of the adjacent ground connecting wall joints is improved, the ground connecting wall joint is kept in a vertical state through the fixing mechanism, and the situation that the installation position of a lock catch pipe is not in accordance with construction specifications due to the fact that the ground connecting wall joint is inclined is not vertical is avoided.
Description
Technical Field
The invention relates to the technical field of joint construction of a diaphragm wall, in particular to a construction method and a construction device of a diaphragm wall joint.
Background
The continuous wall, also called as underground continuous wall, is a kind of grooving machine used in foundation engineering on the ground, and a long and narrow deep groove is excavated along the peripheral axis of the deep excavation engineering under the condition of mud wall protection. After the groove is cleared, a reinforcement cage is hung in the groove, and then underwater concrete is poured into the groove by a conduit method to form a unit groove section. The construction is carried out section by section, and a continuous reinforced concrete wall is built underground and used as a water interception, seepage prevention, bearing and water retaining structure.
The ground is wall joint construction and is most all need to utilize the reinforcing bar to carry out fixed connection to two adjacent ground and is wall joint, avoids because the ground that needs to be under construction is wall joint unstability leads to the cell wall not perpendicular, and the hasp pipe installation has skew, the condition of not putting in place to guarantee the stability of two, with the stability of guaranteeing the ground and is wall joint to need to be under construction, but because the reinforcing bar material problem is to its cutting welding, all need a large amount of time to carry out the operation, waste time and energy, seriously influence ground and even wall efficiency of construction and quality level.
Disclosure of Invention
The invention aims to solve the problem that in the prior art, two connecting wall joint reinforcing steel bars are difficult to install and cut, and provides a connecting wall joint construction method and device.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a construction method of a joint of a diaphragm wall comprises the following steps:
step S1, guide wall construction: strictly controlling the construction quality of the guide wall, and analyzing the sectional and fixed-point stress degree;
step S2, size survey: measuring and calculating the corresponding positions of the ground and the wall, and determining the structural position of the ground wall joint and the position mark of the control line box of the cast-in-situ ground wall section;
s3, determining an array mode according to the concrete structure of the ground connecting wall, and assembling the cast steel balancing weight on the ground connecting wall joint;
s4, vertically lifting the diaphragm wall joint provided with the clamping device, inserting the diaphragm wall joint provided with the cast steel balancing weight into a press mounting hole of the static vertical pile pressing machine, adjusting the pile position to the pile position control point determined in the step S2, and implementing the construction operation of cutting into soil body by press mounting;
step S5, gradually dismantling the cast steel balancing weight from bottom to top along with the depth of the ground wall joint pressed into the soil body until pile pressing is completed;
step S6, when the continuous construction of the local wall joint is completed, four local wall joints are sequentially and uniformly arranged along the length direction, a fixing mechanism for fixing connection is arranged between the first local wall joint and the second local wall joint, and between the third local wall joint and the fourth local wall joint, the inserting rod is pushed down through the fixing rod, so that the inserting rod is inserted into the ground, the movable rod is forced to move upwards to drive the traction rod to deflect upwards, the limiting rod enters the opening, the second guide block horizontally moves inwards through the cooperation of the through hole and the bolt, and the first clamping rod and the second clamping rod are pushed into the fourth accommodating cavity, so that the adjacent two local wall joints can be fixedly connected;
one end of the first ground wall joint, which is positioned on the ground, is fixed with one end of the second ground wall joint, which is positioned on the ground, by using a fixing mechanism, one end of the third ground wall joint, which is positioned on the ground, is fixed with one end of the fourth ground wall joint, which is positioned on the ground, by using a fixing mechanism, then a grooving machine is adopted to clean grooves on the second ground wall joint and the third ground wall joint, then a reinforcement cage is hung in the grooves, concrete pouring is carried out through a concrete conduit, and the fixing mechanism is released after all the connecting wall construction is completed;
and S7, carrying out other non-adjacent wall construction operations before the concrete strength in the step S6 meets the construction requirement, and directly carrying out the face-to-groove excavation construction operation after the concrete strength meets the requirement.
Preferably, the guide wall in the step S1 is a construction measure of a construction unit, and the guide wall is constructed before the underground diaphragm wall is formed into the groove.
Preferably, the ground wall joint in step S3 includes web and two curb plates of body coupling, two the curb plates are parallel, and two curb plates set up relatively, two an organic whole is connected with the web between the curb plate, two the curb plate all sets up perpendicularly with the web, two the bottom of curb plate is the triangular pyramid structure, the cross section of ground wall joint is the H shape, and has seted up screw hole and the opening that are used for screw fixation cast steel balancing weight on the ground wall joint.
Preferably, in the step S6, a level gauge is first used to measure the height drop between the fixing mechanism and the wall joint, and after the height drop is determined to be within the error range, the fixing mechanism locks and fixes the wall joint located at two sides of the wall joint.
The utility model provides a wall joint construction equipment is even to ground, includes fixed establishment, fixed establishment is including setting up the dead lever between first and second wall joint even, set up first chamber and the second chamber of accomodating on the dead lever respectively, first guide way has been seted up on the first chamber inner wall of accomodating, first guide way slip cap is equipped with first guide block, two fixedly connected with inserted bar between the first guide block, second accomodates and has seted up on the intracavity roof and accomodate the groove, it has the spring to weld in the groove to accomodate, the spring welding has the movable rod that offsets with the inserted bar activity, rotate on the dead lever and be connected with the gag lever post, be connected with the traction lever post between gag lever post and the movable rod;
the third of having seted up in the web with the opening intercommunication accomodates the chamber, the second guide way has been seted up on the third accomodates the intracavity wall, the slip cap is equipped with the second guide block in the second guide way, the through-hole has been seted up on the curb plate, the through-hole thread bush is equipped with the bolt of rotating with the second guide block and being connected, the fourth of having seted up in the gag lever post accomodates the chamber, first draw-in lever and second draw-in lever of fixedly connected with on the second guide block respectively.
Preferably, the bottom end of the inserted link is in a triangular cone structure, and two ends of the traction link are respectively connected to the limiting link and the movable link through pin shafts.
Preferably, the limit rod is arranged corresponding to the opening, and the bolt is horizontally arranged at the outer side of the side plate.
Preferably, one end of the first clamping rod, which is far away from the second guide block, is convex, and one end of the second clamping rod, which is far away from the second guide block, is concave.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, the fixed rod is pressed down to enable the inserted link to be inserted into the ground, the movable rod is forced to move upwards to drive the traction rod to deflect upwards, the limiting rod enters the opening, the second guide block horizontally moves inwards through the cooperation of the through hole and the bolt to push the first clamping rod and the second clamping rod to enter the fourth storage cavity, so that the locking and fixing of the wall joint at two sides of the fixed mechanism are realized, and the stability of the adjacent wall joint is improved.
2. According to the invention, the ground wall joint is kept in a vertical state during construction by the fixing mechanism, so that the problem that the installation position of the lock catch pipe is not in accordance with the construction specification due to the fact that the groove wall is not vertical because the ground wall joint is inclined is avoided.
Drawings
FIG. 1 is a schematic diagram of a construction device for a wall joint of a ground connection according to the present invention;
fig. 2 is a schematic structural distribution diagram of a fixing mechanism of a construction device for a wall joint of a ground connection provided by the invention;
FIG. 3 is a front view of a wall joint of the wall joint construction device according to the present invention;
fig. 4 is an enlarged schematic diagram of a local structure of a construction device for a wall joint of a ground connection according to the present invention;
FIG. 5 is an enlarged schematic view of a portion B of a wall joint construction device according to the present invention;
fig. 6 is a schematic diagram showing the connection between a web plate and a side plate of a wall joint construction device according to the present invention.
In the figure: 1. a fixed rod; 2. a first receiving chamber; 3. a second receiving chamber; 4. a first guide groove; 5. a first guide block; 6. a rod; 7. a storage groove; 8. a spring; 9. a movable rod; 10. a limit rod; 11. a traction rod; 12. a third receiving chamber; 13. a second guide groove; 14. a second guide block; 15. a through hole; 16. a bolt; 17. a fourth receiving chamber; 18. a first clamping rod; 19. a second clamping rod; 20. a web; 21. a side plate; 22. an opening; 23. a reinforcement cage; 24. and (3) a concrete conduit.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1 to 6, a method and a device for constructing a joint of a diaphragm wall, the method comprises the following steps:
step S1, guide wall construction: strictly controlling the construction quality of the guide wall, and analyzing the sectional and fixed-point stress degree;
step S2, size survey: measuring and calculating the corresponding positions of the ground and the wall, and determining the structural position of the ground wall joint and the position mark of the control line box of the cast-in-situ ground wall section;
s3, determining an array mode according to the concrete structure of the ground connecting wall, and assembling the cast steel balancing weight on the ground connecting wall joint;
s4, vertically lifting the diaphragm wall joint provided with the clamping device, inserting the diaphragm wall joint provided with the cast steel balancing weight into a press mounting hole of the static vertical pile pressing machine, adjusting the pile position to the pile position control point determined in the step S2, and implementing the construction operation of cutting into soil body by press mounting;
step S5, gradually dismantling the cast steel balancing weight from bottom to top along with the depth of the ground wall joint pressed into the soil body until pile pressing is completed;
step S6, when the continuous construction of the local wall joint is completed, four local wall joints are sequentially and uniformly distributed along the length direction, a fixing mechanism for fixing connection is arranged between the first local wall joint and the second local wall joint, and between the third local wall joint and the fourth local wall joint, the inserting rod 6 is inserted into the ground through the downward pressing of the fixing rod 1, the first guide block 5 vertically moves in the first guide groove 4 to force the movable rod 9 to move upwards to press the spring 8, the movable rod 9 drives the traction rod 11 to deflect upwards, the traction rod 11 pulls the limiting rod 10 to enter the opening 22, the second guide block 14 horizontally moves towards the inner side direction of the third storage cavity 12 through the cooperation of the through hole 15 and the bolt 16, the first clamping rod 18 and the second clamping rod 19 are pushed to enter the fourth storage cavity 17, and the adjacent two local wall joints can be fixedly connected;
one end of the first ground wall joint, which is positioned on the ground, is fixed with one end of the second ground wall joint, which is positioned on the ground, by using a fixing mechanism, one end of the third ground wall joint, which is positioned on the ground, is fixed with one end of the fourth ground wall joint, which is positioned on the ground, by using a fixing mechanism, then a grooving machine is adopted to clean grooves on the second ground wall joint and the third ground wall joint, then a reinforcement cage 23 is hoisted down, concrete pouring is carried out through a concrete conduit 24, and the fixing mechanism is released after all the connecting wall constructions are completed;
and S7, carrying out other non-adjacent wall construction operations before the concrete strength in the step S6 meets the construction requirement, and directly carrying out the face-to-groove excavation construction operation after the concrete strength meets the requirement.
The guide wall in the step S1 is a construction measure mode of a construction unit, the guide wall is firstly constructed before the underground diaphragm wall is formed into a groove, and the guide wall is a key for ensuring the position accuracy and the groove forming quality of the underground diaphragm wall;
in the step S3, the wall joint comprises a web 20 and two side plates 21 which are integrally connected, the two side plates 21 are parallel, the two side plates 21 are oppositely arranged, the web 20 is integrally connected between the two side plates 21, the two side plates 21 are perpendicular to the web 20, the bottom ends of the two side plates 21 are in a triangular pyramid structure, the cross section of the wall joint is H-shaped, and a threaded hole and an opening 22 for fixing a cast steel balancing weight by screws are formed in the wall joint;
the cast steel balancing weight provided in the step S3 can be used for increasing the weight of the ground wall joint to keep the balance of the ground wall joint so as to ensure that the ground wall joint can keep stable when being pressed.
In the step S6, firstly, measuring the height drop between the fixing mechanism and the ground connecting wall joints by using a level gauge, and after the height drop is determined to be within an error range, locking and fixing the ground connecting wall joints positioned at two sides of the fixing mechanism by using the fixing mechanism;
the concrete duct 24 proposed in step S6 is formed by a duct method in which a concrete mixture is introduced into the bottom of the initially poured concrete (as a water-resistant layer) through a duct lower opening, and the newly poured concrete is supported by an underwater concrete pouring method in which the initially poured concrete is raised and spread to the periphery.
The construction device comprises a fixing mechanism, the ground wall connection joints at two sides of the fixing mechanism can be locked and fixed through the fixing mechanism, so that the stability of adjacent ground wall connection joints is improved, the perpendicularity of the ground wall connection joints in construction is guaranteed, and the situation that the installation position of a lock catch pipe is not in accordance with the construction specification due to the fact that the groove wall is not perpendicular because the ground wall connection joints incline is avoided;
the fixing mechanism comprises a fixing rod 1 arranged between a first ground wall joint and a second ground wall joint, a first storage cavity 2 and a second storage cavity 3 are respectively formed in the fixing rod 1, a first guide groove 4 is formed in the inner wall of the first storage cavity 2, a first guide block 5 is sleeved on the first guide groove 4 in a sliding mode, an inserting rod 6 is fixedly connected between the two first guide blocks 5, the bottom end of the inserting rod 6 is of a triangular pyramid structure, and the inserting rod 6 can be easily inserted into soil to be fixed through sharp corners at the bottom end of the inserting rod 6;
a storage groove 7 is formed in the inner top wall of the second storage cavity 3, a spring 8 is welded in the storage groove 7, a buffer effect can be provided for the movable rod 9 through the elastic force effect of the spring 8, the spring 8 is welded with the movable rod 9 which is movably propped against the inserted rod 6, a limiting rod 10 is rotatably connected to the fixed rod 1, the limiting rod 10 is correspondingly arranged with the opening 22, and a traction rod 11 is connected between the limiting rod 10 and the movable rod 9 through a pin shaft;
the third of web 20 and opening 22 intercommunication accomodate chamber 12, the second guide way 13 has been seted up on the third is accomodate the chamber 12 inner wall, sliding sleeve is equipped with second guide block 14 in the second guide way 13, through-hole 15 has been seted up on the curb plate 21, through-hole 15 thread bush is equipped with the bolt 16 of being connected with second guide block 14 rotation, and the bolt 16 level sets up in curb plate 21 outside position, fourth is accomodate chamber 17 has been seted up in gag lever post 10, fixedly connected with first clamping lever 18 and second clamping lever 19 on the second guide block 14 respectively, the one end that first clamping lever 18 kept away from second guide block 14 is the convexity, and the one end that second clamping lever 19 kept away from second guide block 14 is the concavity, realize the buckle in fourth accomodate chamber 17 through first clamping lever 18 and second clamping lever 19, help improving fixed establishment's stability.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (6)
1. The construction method of the underground wall joint is characterized by comprising the following steps of:
step S1, guide wall construction: strictly controlling the construction quality of the guide wall, and analyzing the sectional and fixed-point stress degree;
step S2, size survey: measuring and calculating the corresponding positions of the ground and the wall, and determining the structural position of the ground wall joint and the position mark of the control line box of the cast-in-situ ground wall section;
s3, determining an array mode according to the concrete structure of the ground connecting wall, and assembling the cast steel balancing weight on the ground connecting wall joint;
the ground wall joint in the step S3 comprises a web plate (20) and two side plates (21) which are integrally connected, the two side plates (21) are parallel, the two side plates (21) are oppositely arranged, the web plate (20) is integrally connected between the two side plates (21), the two side plates (21) are all vertically arranged with the web plate (20), the bottom ends of the two side plates (21) are of a triangular pyramid structure, the cross section of the ground wall joint is H-shaped, and a threaded hole and an opening (22) for fixing a cast steel balancing weight by screws are formed in the ground wall joint;
s4, vertically lifting the diaphragm wall joint provided with the clamping device, inserting the diaphragm wall joint provided with the cast steel balancing weight into a press mounting hole of the static vertical pile pressing machine, adjusting the pile position to the pile position control point determined in the step S2, and implementing the construction operation of cutting into soil body by press mounting;
step S5, gradually dismantling the cast steel balancing weight from bottom to top along with the depth of the ground wall joint pressed into the soil body until pile pressing is completed;
step S6, when the continuous construction of the local wall connection joints is completed, the four local wall connection joints are sequentially and uniformly distributed along the length direction, and fixing mechanisms for fixing connection are arranged between the first local wall connection joint and the second local wall connection joint, and between the third local wall connection joint and the fourth local wall connection joint;
the construction device comprises a fixing mechanism, wherein the fixing mechanism comprises a fixing rod (1) arranged between a first ground wall joint and a second ground wall joint, a first storage cavity (2) and a second storage cavity (3) are respectively formed in the fixing rod (1), a first guide groove (4) is formed in the inner wall of the first storage cavity (2), a first guide block (5) is sleeved on the first guide groove (4) in a sliding mode, a plug rod (6) is fixedly connected between the two first guide blocks (5), a storage groove (7) is formed in the inner top wall of the second storage cavity (3), a spring (8) is welded in the storage groove (7), a movable rod (9) which is movably abutted against the plug rod (6) is welded in the spring (8), a limit rod (10) is connected onto the fixing rod (1) in a rotating mode, and a traction rod (11) is connected between the limit rod (10) and the movable rod (9);
a third storage cavity (12) communicated with the opening (22) is formed in the web (20), a second guide groove (13) is formed in the inner wall of the third storage cavity (12), a second guide block (14) is sleeved in the second guide groove (13) in a sliding mode, a through hole (15) is formed in the side plate (21), a bolt (16) rotationally connected with the second guide block (14) is sleeved in the through hole (15) in a threaded mode, a fourth storage cavity (17) is formed in the limiting rod (10), and a first clamping rod (18) and a second clamping rod (19) are fixedly connected to the second guide block (14) respectively; the fixed rod (1) is pressed downwards to enable the inserting rod (6) to be inserted into the ground, the movable rod (9) is forced to move upwards to drive the traction rod (11) to deflect upwards, the limiting rod (10) enters the opening (22), the second guide block (14) horizontally moves inwards under the matching action of the through hole (15) and the bolt (16), the first clamping rod (18) and the second clamping rod (19) are pushed to enter the fourth containing cavity (17), and the two adjacent ground connection wall joints can be fixedly connected;
one end of the first ground wall joint, which is positioned on the ground, is fixed with one end of the second ground wall joint, which is positioned on the ground, by using a fixing mechanism, one end of the third ground wall joint, which is positioned on the ground, is fixed with one end of the fourth ground wall joint, which is positioned on the ground, by using a fixing mechanism, then a grooving machine is adopted to clean grooves on the second ground wall joint and the third ground wall joint, then a reinforcement cage (23) is hung in the grooves, concrete pouring is carried out through a concrete conduit (24), and the fixing mechanism is released after the construction of all the connecting walls is completed;
and S7, carrying out other non-adjacent wall construction operations before the concrete strength in the step S6 meets the construction requirement, and directly carrying out the face-to-groove excavation construction operation after the concrete strength meets the requirement.
2. The method for constructing a joint of diaphragm wall according to claim 1, wherein the guide wall in the step S1 is a construction measure of a construction unit, and the guide wall is constructed before the diaphragm wall is formed into the groove.
3. The method for constructing a wall joint according to claim 1, wherein in step S6, a level gauge is used to measure the height drop between the fixing mechanism and the wall joint, and after the height drop is determined to be within the error range, the fixing mechanism locks and fixes the wall joint at two sides of the wall joint.
4. The construction device of the construction method of the diaphragm wall joint according to claim 3, wherein the bottom end of the inserted link (6) is of a triangular cone structure, and two ends of the traction link (11) are respectively connected to the limit link (10) and the movable link (9) through pin shafts.
5. The construction device for the method for constructing the wall-over-ground joint according to claim 4, wherein the limit rod (10) is provided corresponding to the opening (22), and the bolt (16) is horizontally provided at a position outside the side plate (21).
6. The construction device for the method for constructing the wall joint according to claim 5, wherein the end of the first clamping rod (18) far from the second guide block (14) is convex, and the end of the second clamping rod (19) far from the second guide block (14) is concave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211284633.0A CN115467320B (en) | 2022-10-17 | 2022-10-17 | Construction method and device for joint of underground diaphragm wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211284633.0A CN115467320B (en) | 2022-10-17 | 2022-10-17 | Construction method and device for joint of underground diaphragm wall |
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| Publication Number | Publication Date |
|---|---|
| CN115467320A CN115467320A (en) | 2022-12-13 |
| CN115467320B true CN115467320B (en) | 2023-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211284633.0A Active CN115467320B (en) | 2022-10-17 | 2022-10-17 | Construction method and device for joint of underground diaphragm wall |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03212508A (en) * | 1990-01-17 | 1991-09-18 | Nippon Steel Corp | Continuous underground wall construction method and reinforcement cage for continuous underground wall |
| CN102409695A (en) * | 2011-10-28 | 2012-04-11 | 江苏土力建设工程有限公司 | Construction method for joints of caisson type diaphragm wall |
| CN113494093A (en) * | 2021-07-26 | 2021-10-12 | 温州市阳光建设有限公司 | Deep foundation pit supporting structure |
| CN114293565A (en) * | 2021-11-29 | 2022-04-08 | 许立霞 | Foundation pit supporting structure with high reliability |
| CN217438952U (en) * | 2022-03-08 | 2022-09-16 | 代宁宁 | Foundation pit slope supporting device |
-
2022
- 2022-10-17 CN CN202211284633.0A patent/CN115467320B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03212508A (en) * | 1990-01-17 | 1991-09-18 | Nippon Steel Corp | Continuous underground wall construction method and reinforcement cage for continuous underground wall |
| CN102409695A (en) * | 2011-10-28 | 2012-04-11 | 江苏土力建设工程有限公司 | Construction method for joints of caisson type diaphragm wall |
| CN113494093A (en) * | 2021-07-26 | 2021-10-12 | 温州市阳光建设有限公司 | Deep foundation pit supporting structure |
| CN114293565A (en) * | 2021-11-29 | 2022-04-08 | 许立霞 | Foundation pit supporting structure with high reliability |
| CN217438952U (en) * | 2022-03-08 | 2022-09-16 | 代宁宁 | Foundation pit slope supporting device |
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| CN115467320A (en) | 2022-12-13 |
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