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CN-224227769-U - Novel vertical seam structure of assembled diaphragm wall

CN224227769UCN 224227769 UCN224227769 UCN 224227769UCN-224227769-U

Abstract

The utility model discloses a novel assembled type vertical joint structure of a diaphragm wall, which comprises a first wall body unit and a second wall body unit which are connected and assembled and fixed in sequence from end to end, wherein a first joint structure positioned at the middle upper part and a second joint structure positioned at the middle lower part are arranged between the first wall body unit and the second wall body unit, and the first joint structure and the second joint structure realize connection and water resistance between the first wall body unit and the second wall body unit. When the prefabricated underground continuous wall is inserted into construction, the steel ribs of the adjacent wall webs are mutually tied and guided, so that the construction accuracy is improved, and the shear strength of joints is ensured. After the insertion construction of the adjacent wall units is completed, the post-pouring UHPC concrete and the steel pipe grouting construction of the joint between the panels are performed, the insertion construction of the subsequent underground continuous wall is not affected, the construction efficiency is improved, the strength and the waterproof effect of the joint position are enhanced, and the application of the assembled underground continuous wall in underground engineering is effectively promoted.

Inventors

  • WANG DALIN
  • Niu Yuzhe
  • GUO JIANYONG
  • ZHANG YUHUA
  • LI GUANGJING
  • YU XUEMIN
  • JIN RUIJIE
  • CHEN JIANMIN
  • Cao Shoukun
  • GAO XIANG
  • LIU CHANG
  • ZHANG PENG
  • ZHANG CHUNLEI
  • WU HAO
  • CUI TAO
  • YANG GUISHENG
  • LI AIDONG
  • XU YUNHE
  • SHENG LUTENG

Assignees

  • 中国铁路设计集团有限公司

Dates

Publication Date
20260512
Application Date
20250416

Claims (10)

  1. 1. The novel assembled type underground continuous wall vertical joint structure comprises a first wall unit (1) and a second wall unit (2) which are connected and assembled and fixed in sequence from end to end, and is characterized in that a first joint structure positioned at the middle upper part and a second joint structure positioned at the middle lower part are arranged between the first wall unit (1) and the second wall unit (2), and the first joint structure and the second joint structure realize connection and water resistance between the first wall unit (1) and the second wall unit (2).
  2. 2. The novel fabricated diaphragm wall vertical joint structure according to claim 1, wherein the second joint structure comprises a first groove (7) on the right side of the first wall unit (1), a second groove (8) is formed on the left side of the second wall unit (2), and the first groove (7) and the second groove (8) are opposite in transverse position.
  3. 3. The novel fabricated diaphragm wall vertical joint structure of claim 2, wherein the first groove (7) and the second groove (8) are spliced to form a pouring cavity, and the pouring cavity is a closed cross-section cavity.
  4. 4. The novel fabricated diaphragm wall vertical joint structure according to claim 3, wherein UHPC concrete (9) is poured in the pouring cavity, and the UHPC concrete (9) realizes connection and waterproofing of the middle lower parts of the first wall unit (1) and the second wall unit (2).
  5. 5. The novel fabricated diaphragm wall vertical joint structure according to claim 1, wherein the first joint structure is a rigid connection structure, and the rigid connection structure comprises a bearing piece in the first wall unit (1) and an inserting piece in the second wall unit (2), and the inserting piece is inserted into the bearing piece.
  6. 6. The novel fabricated diaphragm wall vertical joint structure of claim 5, wherein the bearing piece is a first connecting steel piece (3), and an opening is formed in the cross section of the first connecting steel piece (3).
  7. 7. The novel fabricated diaphragm wall vertical joint structure according to claim 6, wherein the opening of the first connecting steel member (3) is communicated with the right side of the first wall unit (1).
  8. 8. The novel fabricated diaphragm wall vertical joint structure according to claim 7, wherein the inserting piece comprises a second connecting steel piece (4) protruding out of the left side of the second wall body unit (2), and the second connecting steel piece (4) can penetrate through an opening of the first connecting steel piece (3).
  9. 9. The novel fabricated diaphragm wall vertical joint structure according to claim 8, wherein the free end of the second connecting steel piece (4) is provided with a steel flower pipe (6), and the steel flower pipe (6) is arranged inside the first connecting steel piece (3).
  10. 10. The novel fabricated diaphragm wall vertical joint structure according to claim 9, wherein the outer diameter of the steel flower pipe (6) is larger than the opening of the first connecting steel piece (3).

Description

Novel vertical seam structure of assembled diaphragm wall Technical Field The utility model belongs to the technical field of underground structural engineering, and particularly relates to a novel assembled underground continuous wall vertical seam structure. Background Along with the continuous promotion of urban construction, the number of deep and large foundation pit projects is continuously increased, particularly the deep and large foundation pit projects in busy sections, the conventional cast-in-situ underground continuous wall construction is adopted to occupy roads for a long time, traffic is affected, the construction efficiency is low, the construction quality is difficult to ensure, and adverse effects on the surrounding environment are very easy to cause. The prefabricated underground continuous wall has the advantages of standardized production in batches, controllable quality, quick construction progress and the like, meets the requirements of energy conservation and environmental protection, and the strength and the waterproof performance of the prefabricated underground continuous wall are often dependent on the joint between the panels. At present, water stop and strength improvement of joint positions are mainly carried out by means of measures such as pouring concrete and grouting after joint positions in engineering, construction is time-consuming and labor-consuming, the construction effect is not easy to control, and water leakage at joint positions is extremely easy to cause. Disclosure of Invention The utility model provides a novel assembled type vertical joint structure of a wall connected with ground, which aims to solve the problems existing in the prior art. The technical scheme is that the novel assembled type ground continuous wall vertical joint structure comprises a first wall body unit and a second wall body unit which are connected and assembled and fixed in sequence from end to end, wherein a first joint structure positioned at the middle upper part and a second joint structure positioned at the middle lower part are arranged between the first wall body unit and the second wall body unit, and the first joint structure and the second joint structure realize connection and water resistance between the first wall body unit and the second wall body unit. Still further, the second joint structure comprises a first groove on the right side of the first wall unit, a second groove is formed on the left side of the second wall unit, and the transverse positions of the first groove and the second groove are opposite. Furthermore, the first groove and the second groove are spliced to form a pouring cavity, and the pouring cavity is a closed cavity with a cross section. Furthermore, UHPC concrete is poured in the pouring cavity, and the UHPC concrete is used for realizing connection and water resistance of the middle lower parts of the first wall unit and the second wall unit. Still further, the first joint structure is a rigid connection structure comprising a socket in the first wall unit and an insert in the second wall unit, the insert being inserted into the socket. Further, the bearing piece is a first connecting steel piece, and an opening is formed in the cross section of the first connecting steel piece. Still further, the opening of the first connection steel member is communicated with the right side of the first wall unit. Still further, the insert includes a second connection steel member protruding out of the left side of the second wall unit, the second connection steel member being capable of passing through the opening of the first connection steel member. Still further, the free end of second connecting steel spare is provided with the steel flower pipe, the steel flower pipe sets up in the inside of first connecting steel spare. Further, the outer diameter of the steel floral tube is larger than the opening of the first connecting steel piece. The beneficial effects of the utility model are as follows: When the prefabricated underground continuous wall is inserted into construction, the steel ribs of the adjacent wall webs are mutually tied and guided, so that the construction accuracy is improved, and the shear strength of joints is ensured. After the insertion construction of the adjacent wall units is completed, the post-pouring UHPC concrete and the steel pipe grouting construction of the joint between the panels are performed, the insertion construction of the subsequent underground continuous wall is not affected, the construction efficiency is improved, the strength and the waterproof effect of the joint position are enhanced, and the application of the assembled underground continuous wall in underground engineering can be effectively promoted. Drawings FIG. 1 is a top view of the present utility model; FIG. 2 is an enlarged schematic view of the present utility model; FIG. 3 is a cross-sectional view of a first connecting steel member of the present uti