CN113279426A - Joint structure of lattice type continuous wall and construction method - Google Patents
Joint structure of lattice type continuous wall and construction method Download PDFInfo
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- CN113279426A CN113279426A CN202110685221.7A CN202110685221A CN113279426A CN 113279426 A CN113279426 A CN 113279426A CN 202110685221 A CN202110685221 A CN 202110685221A CN 113279426 A CN113279426 A CN 113279426A
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- continuous wall
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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
- E02D29/02—Retaining or protecting walls
- E02D29/0258—Retaining or protecting walls characterised by constructional features
- E02D29/0275—Retaining or protecting walls characterised by constructional features cast in situ
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
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- Environmental & Geological Engineering (AREA)
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Abstract
The invention discloses a joint structure of a lattice-type continuous wall, which comprises an early-stage groove section steel reinforcement cage positioned in concrete of the early-stage continuous wall, a later-stage groove section steel reinforcement cage positioned in concrete of the later-stage continuous wall and a connecting joint, wherein the connecting joint is respectively connected with the early-stage groove section steel reinforcement cage and the later-stage groove section steel reinforcement cage and comprises a connecting plate, a plurality of occluding parts and a partition plate, the connecting plate is provided with a web plate and two wing plates, the web plate is positioned between the two wing plates and fixedly connected in an I shape, the inner sides of the same ends of the two wing plates are respectively fixedly connected with the outer side of the early-stage groove section steel reinforcement cage, the partition plate is vertically arranged between the two wing plates and fixedly connected with the web plate, the plurality of occluding parts are fixed on the surfaces of the web plate and the partition plate in a toothed staggered manner from top to bottom, the construction method of the lattice-type continuous wall comprises the joint structure, the early-stage continuous wall is tightly connected with the later-stage continuous wall after concrete pouring, thereby effectively transmitting the internal force, forming an integral stress system and fully exerting the integral performance of the lattice type continuous wall.
Description
Technical Field
The invention belongs to the technical field of engineering construction, and particularly relates to a joint structure of a lattice type continuous wall and a construction method.
Background
At present, the lattice type continuous wall is a supporting form which bears the lateral pressure of a soil body by depending on the integral rigidity of the lattice type continuous wall, has large integral rigidity and good impermeability, does not depend on a support or an anchor cable, and can be used as a temporary or permanent water retaining and soil retaining structure. The lattice type continuous wall adopts the construction of dividing the groove section, connects the continuous wall between the different groove sections through connecting and forms lattice type overall structure, and the joint type that the continuous wall is commonly used has H shape, ten shape or king's shape, and the joint position is the weak link in lattice type continuous wall formation stress system, easily takes place mutual dislocation and leads to the lattice type continuous wall to be difficult to exert whole rigidity effect.
The joint structure of the current lattice type continuous wall has the following problems: 1) a smooth contact surface is formed between the H-shaped joint and the second-stage groove section concrete, and the friction force transmission capability is weak; 2) although the cross-shaped or king-shaped joint has a middle partition plate entering the second-stage groove section concrete, the cross-shaped or king-shaped joint generally considers the transverse seepage effect or strengthens the integrity in the direction vertical to the soil pressure, generally does not consider the function of transmitting friction force along the soil pressure direction, and has thinner middle partition plate and poor stress performance.
Therefore, a new technology is needed to solve the problem of poor force transmission capability of the joint structure of the cellular continuous wall in the prior art.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a joint structure of a lattice type continuous wall and a construction method, which have the effect of better transferring stress.
The invention adopts the following technical scheme:
the utility model provides a joint structure of lattice type diaphragm wall, includes earlier stage groove section steel reinforcement cage, later stage groove section steel reinforcement cage and attach fitting, attach fitting respectively with earlier stage groove section steel reinforcement cage later stage groove section steel reinforcement cage is connected, earlier stage groove section steel reinforcement cage is located in the concrete of earlier stage diaphragm wall, later stage groove section steel reinforcement cage is located the concrete of later stage diaphragm wall, attach fitting includes connecting plate, a plurality of interlock spare and baffle, the connecting plate is equipped with web and two pterygoid laminas, the web is located between two pterygoid laminas, the web with two pterygoid laminas are I shape fixed connection in vertical direction, the inboard of the same end of two pterygoid laminas respectively with earlier stage groove section steel reinforcement cage's outside fixed connection, the baffle vertical setting between two pterygoid laminas boards and with web fixed connection, a plurality of interlock spares are from top to bottom that the cusp is crisscross to be fixed the both sides of web, The two sides of the partition plate are close to the inner sides of one ends of the later-stage groove section steel reinforcement cages.
As a further improvement of the technical scheme of the present invention, the plurality of engaging members are divided into a plurality of first engaging members, a plurality of second engaging members, a plurality of third engaging members and a plurality of fourth engaging members, the cross section of each of the first engaging members and the second engaging members in the vertical direction is isosceles trapezoid, the cross section of each of the third engaging members and the fourth engaging members in the vertical direction is right trapezoid, the plurality of first engaging members are uniformly fixed on the web plate on the side close to the reinforcement cage of the early groove section, the plurality of second engaging members are uniformly fixed on the web plate on the side close to the reinforcement cage of the later groove section, the plurality of third engaging members are uniformly fixed on the two sides of the partition plate, and the plurality of fourth engaging members are uniformly fixed on the inner sides of the two wing plates on the side close to the reinforcement cage of the later groove section.
As a further improvement of the technical solution of the present invention, a distance from a connection node of the wing plate and the web to an end of the wing plate close to the reinforcement cage of the early-stage trough section is a first length, a distance from a connection node of the wing plate and the web to an end of the wing plate close to the reinforcement cage of the later-stage trough section is a second length, and a length of each of the first engaging members in the horizontal direction is smaller than the first length.
As a further improvement of the technical solution of the present invention, the partition plate is centrally fixed on the web plate, the plurality of second engaging pieces are located at two sides of the partition plate and have a first gap with the partition plate, and the length of each second engaging piece in the horizontal direction is smaller than the second length.
As a further improvement of the technical solution of the present invention, the length of the partition board in the horizontal direction is smaller than the second length, the bottom side of the right trapezoid of each third engaging member is fixedly connected to the partition board, and the right side of the right trapezoid of each third engaging member is flush with the end of the partition board away from the web.
As a further improvement of the technical scheme of the invention, the bottom edge of the right trapezoid of each fourth engaging member is fixedly connected with each wing plate, and the right-angle edge of the right trapezoid of each fourth engaging member is flush with one end of each wing plate close to the later-stage groove section steel reinforcement cage.
As a further improvement of the technical scheme of the invention, the section of the end part of the late-stage groove section reinforcement cage close to the connecting joint in the vertical direction is in a W shape and is provided with two bulges, a second gap is formed between the end part and the partition plate, and the length of the second gap is smaller than the difference between the partition plate and the second length.
A construction method of a lattice type continuous wall comprises the joint structure of the lattice type continuous wall, and comprises the following steps:
s1, binding and forming a reinforcement cage at an early-stage groove section;
s2, processing the joint structure;
s3, fixedly connecting the joint structure with the early-stage groove section steel reinforcement cage, and then hanging the joint structure in a forming hole of the early-stage continuous wall groove section continuous wall;
s4, pouring concrete in the groove section of the front-stage continuous wall and pouring and fixing the groove section of the front-stage continuous wall and the joint structure;
s5, after binding and forming the later-stage groove section steel reinforcement cage, hanging the later-stage groove section steel reinforcement cage in a later-stage continuous wall groove section continuous wall forming hole;
and S6, pouring concrete in the groove section of the later-stage continuous wall and pouring and fixing the concrete and the joint structure.
Compared with the prior art, the invention has the beneficial effects that:
the connector structure between diaphragm wall in earlier stage and the later stage diaphragm wall is equipped with I shape connecting plate and baffle, and I shape connecting plate and baffle are fixed with a plurality of interlock pieces uniformly, and the connector structure through this scheme makes diaphragm wall in earlier stage and later stage diaphragm wall carry out behind the concrete placement construction zonulae occludens to make effective transmission internal force between the adjacent construction groove section, form whole atress system, full play lattice diaphragm wall's wholeness ability.
Drawings
The technology of the present invention will be described in further detail with reference to the accompanying drawings and detailed description below:
FIG. 1 is a sectional view showing the overall structure of a joint structure of the present invention;
FIG. 2 is a schematic view of the joint structure on the front diaphragm wall side;
FIG. 3 is a schematic view of the joint construction of the later diaphragm wall side;
fig. 4 is a schematic view of the whole structure of the lattice type continuous wall.
Reference numerals:
1-front continuous wall; 11-early-stage groove section reinforcement cage; 111-transverse reinforcement;
2-later-stage continuous wall; 21-later-stage groove section steel reinforcement cage; 211-end portion;
3-connecting a joint; 31-a connecting plate; 311-web; 312-wing plate; 32-a bite piece; 321-a first engaging member; 322-a second engagement member; 323-third engagement member; 324-a fourth engagement member; 33-a separator; 34-a first length; 35-a second length; 36-a first gap; 37-second gap.
Detailed Description
The conception, the specific structure and the technical effects of the present invention will be clearly and completely described in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the schemes and the effects of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The same reference numbers will be used throughout the drawings to refer to the same or like parts.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Further, the description of the upper, lower, left, right, etc. used in the present invention is only with respect to the positional relationship of the respective components of the present invention with respect to each other in the drawings.
Referring to fig. 1 to 4, a joint structure of lattice type continuous wall, including earlier stage channel section steel reinforcement cage 11, later stage channel section steel reinforcement cage 21 and attach fitting 3, attach fitting 3 is preferably shaped steel structure, can cut into required shape with shaped steel at the job site according to actual conditions, attach fitting 3 respectively with earlier stage channel section steel reinforcement cage 11, later stage channel section steel reinforcement cage 21 is connected, earlier stage channel section steel reinforcement cage 11 is located in the concrete of earlier stage continuous wall 1, later stage channel section steel reinforcement cage 21 is located in the concrete of later stage continuous wall 2, attach fitting 3 includes connecting plate 31, a plurality of interlock 32 and baffle 33, interlock 32 is preferably the rib, connecting plate 31 is equipped with web 311 and two pterygoid lamina 312, web 311 is located between two pterygoid laminas 312, web 311 with two pterygoid laminas 312 are the H type fixed connection in vertical direction, the fixed mode between web 311 and the two pterygoid laminas 312 is preferred the welding, the inboard of two pterygoid laminas 312 with the one end respectively with the outside fixed connection of groove section steel reinforcement cage 11 in earlier stage, but pterygoid lamina 312 and the fixed mode of groove section steel reinforcement cage 11 in earlier stage are preferred the welding, specifically are horizontal reinforcing bar 111 and the pterygoid lamina 312 fixed connection of groove section steel reinforcement cage 11 in earlier stage, utilize horizontal reinforcing bar 111 to increase the frictional force between joint design and the concrete. The partition 33 is vertically arranged between the two wing plates 312 and fixedly connected with the web 311, the size of the partition 33 can be checked according to the strength of the transmitted internal force of the lattice-type continuous wall, in one embodiment, the thickness of the partition 33 is preferably twice of the thickness of the wing plates 312, and the length of the partition 33 in the horizontal direction is preferably one fourth of the length of the wing plates 312. The setting of baffle 33 makes the joint design have transversely to wind and oozes the performance, strengthens the joint design at the wholeness of perpendicular to soil pressure direction, a plurality of interlock pieces 32 are dentate fixed crisscross from top to bottom the both sides of web 311, the both sides of baffle 33 two pterygoid laminas 312 are close to the inboard of later stage groove section steel reinforcement cage 21's one end, and interlock piece 32 is fixed in the both sides of baffle 33, interlock effect in the interlock piece 32 combined action additional strengthening on the one hand and on the homonymy web 311, on the other hand has increased the thickness of baffle 33, has promoted the atress performance of baffle 33 to it is inseparabler to make preceding phase continuous wall 1 and later stage continuous wall 2 carry out concrete placement construction after connection. The plurality of engaging pieces 32 are fixed on the surfaces of the web plates 311 and the partition plates 33 in a toothed staggered manner from top to bottom, so that the front-stage continuous wall 1 and the rear-stage continuous wall 2 are tightly connected after concrete is poured, internal force is effectively transmitted, an integral stress system is formed, the integral performance of the lattice type continuous wall is fully exerted, and particularly the integral bending resistance of the lattice type continuous wall in the soil pressure direction is fully exerted.
Specifically, the engaging pieces 32 can be formed on a construction site according to requirements, the engaging pieces 32 are divided into a plurality of first engaging pieces 321, a plurality of second engaging pieces 322, a plurality of third engaging pieces 323 and a plurality of fourth engaging pieces 324, the cross sections of the first engaging pieces 321 and the second engaging pieces 322 in the vertical direction are isosceles trapezoids, the cross sections of the third engaging pieces 323 and the fourth engaging pieces 324 in the vertical direction are right-angled trapezoids, the first engaging pieces 321 are uniformly fixed on the web 311 on the side close to the early-stage channel section reinforcement cage 11, the first engaging pieces 321 and the web 311 are preferably welded, the second engaging pieces 322 are uniformly fixed on the web 311 on the side close to the late-stage channel section reinforcement cage 21, the second engaging pieces 322 and the web 311 are preferably welded, the third engaging pieces 323 are uniformly fixed on both sides of the partition 33, the third engaging member 323 and the partition 33 are preferably fixed by welding, the plurality of fourth engaging members 324 are uniformly fixed inside the two flanges 312 near one end of the rear slotted section reinforcement cage 21, and the fourth engaging members 324 and the flanges 312 are preferably connected by welding.
Specifically, the distance from the connection node of the wing plate 312 and the web 311 to the end of the wing plate 312 close to the early-stage groove-segment steel reinforcement cage 11 is a first length 34, the distance from the connection node of the wing plate 312 and the web 311 to the end of the wing plate 312 close to the later-stage groove-segment steel reinforcement cage 21 is a second length 35, the length of each first engaging piece 321 in the horizontal direction is smaller than the first length 34, the length of each first engaging piece 321 in the horizontal direction is preferably 3-5 cm, and the distance between two adjacent first engaging pieces 321 from top to bottom can be adjusted according to actual conditions.
Specifically, the partition plate 33 is centrally fixed on the web 311, the second engaging pieces 322 are located on two sides of the partition plate 33 and have a first gap 36 between the partition plate 33, each length of the second engaging piece 322 in the horizontal direction is smaller than the second length 35, the length of each second engaging piece 322 in the horizontal direction is preferably 2-3 cm, the second engaging pieces 322 with different lengths in the horizontal direction can be preferably arranged in a staggered manner, the thickness of each second engaging piece 322 in the vertical direction can be preferably 1-2 cm, and the distance between two adjacent second engaging pieces 322 from top to bottom can be preferably 20-50 cm.
Specifically, the length of the partition plate 33 in the horizontal direction is smaller than the second length 35, the bottom side of the right trapezoid of each third engaging member 323 is fixedly connected to the partition plate 33, the right side of the right trapezoid of each third engaging member 323 is flush with one end of the partition plate 33 away from the web 311, the length of each third engaging member 323 in the horizontal direction is preferably 2-3 cm, and preferably, the third engaging members 323 in different lengths in the horizontal direction are arranged in a staggered manner, the thickness of each third engaging member 323 in the vertical direction is preferably 1-2 cm, the distance between two adjacent third engaging members 323 from top to bottom is preferably 20-50 cm, and a gap is formed between the third engaging member 323 and the fourth engaging member 324, so as to facilitate second-stage slot forming and hole sweeping.
Specifically, the bottom side of the right trapezoid of each fourth engaging member 324 is fixedly connected to each wing plate 312, the right side of the right trapezoid of each fourth engaging member 324 is flush with one end of the wing plate 312 close to the rear slotted section steel reinforcement cage 21, the length of each fourth engaging member 324 in the horizontal direction is preferably 2-3 cm, preferably, the fourth engaging members 324 with different lengths in the horizontal direction are arranged in a staggered manner, the thickness of each fourth engaging member 324 in the vertical direction is preferably 1-2 cm, and the distance between two adjacent fourth engaging members 324 from top to bottom is preferably 20-50 cm.
Specifically, the section of the later-stage groove section reinforcement cage 21 close to the end 211 of the connection joint 3 in the vertical direction is W-shaped and has two protrusions, the end 211 of the second-stage reinforcement cage is processed into W-shape so as to be conveniently engaged with the connection joint 3, a second gap 37 is formed between the end 211 and the partition plate 33, and the length of the second gap 37 is smaller than the difference between the partition plate 33 and the second length 35.
A construction method of a lattice type continuous wall comprises the joint structure of the lattice type continuous wall, and comprises the following steps:
s1, binding and forming of the reinforcement cage 11 at the early-stage groove section.
And S2, processing the joint structure.
S3, fixedly connecting the joint structure with the early-stage groove section steel reinforcement cage 11, forming holes in the continuous wall at the groove section 1 of the early-stage continuous wall during construction, and hoisting the early-stage groove section steel reinforcement cage 11 and the joint structure in the formed holes in the continuous wall at the groove section 1 of the early-stage continuous wall by using a crane after cleaning the hole wall.
S4, pouring underwater concrete in the groove section 1 of the diaphragm wall at the early stage of construction, pouring and fixing the underwater concrete and the joint structure, and backfilling a sand bag between the back side of the groove section 1 of the diaphragm wall at the early stage and the joint before pouring the concrete.
S5, forming holes in the 2 groove sections of the continuous wall in the later construction period, cleaning the groove section joints and the adjacent concrete surface by using a groove brushing device, and hoisting the reinforcement cage 21 in the later period groove section after binding and forming in the continuous wall in the 2 groove sections of the later period to form the holes.
S6, pouring underwater concrete at the groove section 2 of the continuous wall in the later construction period, pouring and fixing the underwater concrete with the joint structure, and forming tight occlusion connection between the solidified concrete and the joint, so that internal force is transmitted more effectively, an integral stress system is formed, the integral performance of the lattice type continuous wall is fully exerted, and particularly the integral bending resistance of the lattice type continuous wall in the soil pressure direction is realized.
Other contents of the joint structure and the construction method of the lattice type continuous wall provided by the invention refer to the prior art, and are not described herein again.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (8)
1. The utility model provides a joint design of lattice type continuous wall for connect earlier stage continuous wall and later stage continuous wall, its characterized in that: include attach fitting with steel reinforcement cage fixed connection in the diaphragm wall in earlier stage and with the diaphragm wall in earlier stage the later stage diaphragm wall is pour fixedly, attach fitting includes connecting plate, a plurality of interlock spare and baffle, the connecting plate is equipped with web and two pterygoid laminas, the web is located between two pterygoid laminas, the web with two pterygoid laminas are I shape fixed connection in vertical direction, two pterygoid laminas with the inboard of one end respectively with the outside fixed connection of groove section steel reinforcement cage in earlier stage, the vertical setting of baffle between two pterygoid laminas and with web fixed connection, a plurality of interlock spares are from top to bottom the cusp and fix the both sides of web the both sides of baffle two pterygoid laminas are close to the inboard of the one end of later stage groove section steel reinforcement cage.
2. The joint structure of cellular continuous wall according to claim 1, wherein: the plurality of occluding pieces are divided into a plurality of first occluding pieces, a plurality of second occluding pieces, a plurality of third occluding pieces and a plurality of fourth occluding pieces, the cross sections of the first occluding pieces and the second occluding pieces in the vertical direction are isosceles trapezoids, the cross sections of the third occluding pieces and the fourth occluding pieces in the vertical direction are right trapezoid, the first occluding pieces are uniformly fixed on the web plate close to one side of the early-stage channel section steel reinforcement cage, the second occluding pieces are uniformly fixed on the web plate close to one side of the later-stage channel section steel reinforcement cage, the third occluding pieces are uniformly fixed on the two sides of the partition plate, and the fourth occluding pieces are uniformly fixed on the inner sides of the two wing plates close to one end of the later-stage channel section steel reinforcement cage.
3. The joint structure of cellular continuous wall according to claim 2, wherein: the pterygoid lamina with the connected node of web extremely the pterygoid lamina is close to the distance of the one end of early stage groove section steel reinforcement cage is first length, the pterygoid lamina with the connected node of web extremely the distance that the pterygoid lamina is close to the one end of later stage groove section steel reinforcement cage is the second length, each the length of first interlock piece in the horizontal direction is less than first length.
4. The joint structure of cellular continuous wall according to claim 3, wherein: the partition plate is fixed on the web plate in the middle, the second engaging pieces are located on two sides of the partition plate, a first gap is formed between the second engaging pieces and the partition plate, and the length of each second engaging piece in the horizontal direction is smaller than the second length.
5. The joint structure of cellular continuous wall according to claim 3, wherein: the length of the partition board in the horizontal direction is smaller than the second length, the bottom edge of the right trapezoid of each third engaging piece is fixedly connected with the partition board, and the right-angle edge of the right trapezoid of each third engaging piece is flush with one end, far away from the web, of the partition board.
6. The joint structure of cellular continuous wall according to claim 2, wherein: the bottom edge of the right trapezoid of each fourth meshing piece is fixedly connected with each wing plate, and the right-angle edge of the right trapezoid of each fourth meshing piece is flush with one end, close to the later-stage groove section steel reinforcement cage, of each wing plate.
7. The joint structure of cellular continuous wall according to claim 1, wherein: the later stage groove section steel reinforcement cage is being close to the tip of attach fitting is W type and has two archs in the cross-section on vertical direction, the tip with have the second clearance between the baffle, the length in second clearance be less than the baffle with the difference between the second length.
8. A construction method of a lattice-type continuous wall comprising the joint structure of a lattice-type continuous wall according to any one of claims 1 to 7, characterized in that: the method comprises the following steps:
s1, binding and forming a reinforcement cage at an early-stage groove section;
s2, processing the joint structure;
s3, fixedly connecting the joint structure with the early-stage groove section steel reinforcement cage, and then hanging the joint structure in a forming hole of the early-stage continuous wall groove section continuous wall;
s4, pouring concrete in the groove section of the front-stage continuous wall and pouring and fixing the groove section of the front-stage continuous wall and the joint structure;
s5, after binding and forming the later-stage groove section steel reinforcement cage, hanging the later-stage groove section steel reinforcement cage in a later-stage continuous wall groove section continuous wall forming hole;
and S6, pouring concrete in the groove section of the later-stage continuous wall and pouring and fixing the concrete and the joint structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110685221.7A CN113279426A (en) | 2021-06-21 | 2021-06-21 | Joint structure of lattice type continuous wall and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110685221.7A CN113279426A (en) | 2021-06-21 | 2021-06-21 | Joint structure of lattice type continuous wall and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115369924A (en) * | 2022-08-02 | 2022-11-22 | 中国建筑第八工程局有限公司 | Construction method of underground continuous wall joint |
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2021
- 2021-06-21 CN CN202110685221.7A patent/CN113279426A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115369924A (en) * | 2022-08-02 | 2022-11-22 | 中国建筑第八工程局有限公司 | Construction method of underground continuous wall joint |
| CN115369924B (en) * | 2022-08-02 | 2023-11-21 | 中国建筑第八工程局有限公司 | Construction method of underground diaphragm wall joint |
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