CN-224213273-U - Vertical seam structure of assembled diaphragm wall

CN224213273UCN 224213273 UCN224213273 UCN 224213273UCN-224213273-U

Abstract

The utility model discloses an assembled type ground continuous wall vertical joint structure which comprises a first wall body unit and a second wall body unit, wherein the first wall body unit and the second wall body unit are connected end to end, a combined steel groove is formed in the tail of the first wall body unit, the combined steel groove is flush with the tail side of the first wall body unit, a combined steel plug-in unit is arranged in the second wall body unit, the combined steel plug-in unit protrudes out of the side wall of the second wall body unit and is matched with the combined steel groove, and a surrounding cavity is formed between the first wall body unit and the second wall body unit. When the prefabricated underground continuous wall is inserted into construction, the staggered platform between two adjacent walls can be accurately controlled, and the construction precision is high. The post-pouring self-compacting concrete at the joint between the adjacent walls can also effectively improve the shearing resistance of the joint and ensure the connection strength of the joint.

Inventors

XU YUNHE
XIN LEILEI
YANG SHOUFENG
Song Leyang
ZHANG HAOLIANG
XU ZHENYAN
SONG RAN
LIU YING
GUO CHAO
ZHANG PENG
CUI TAO
WANG DALIN
ZHANG CHUNLEI
ZHANG JIQING
MA YU
Niu Yuzhe
KANG JING

Assignees

中国铁路设计集团有限公司

Dates

Publication Date: 20260508
Application Date: 20250416

Claims (9)

1. The vertical joint structure of the assembled diaphragm wall comprises a first wall body unit (1) and a second wall body unit (2), wherein the first wall body unit (1) and the second wall body unit (2) are connected end to end, and the vertical joint structure is characterized in that a combined steel groove is formed in the tail of the first wall body unit (1), the combined steel groove is flush with the tail side of the first wall body unit (1), a combined steel insert is arranged in the second wall body unit (2), the combined steel insert protrudes out of the side wall of the second wall body unit (2) and is matched with the combined steel groove, and a surrounding cavity is formed between the first wall body unit (1) and the second wall body unit (2).
2. The vertical joint structure of the fabricated diaphragm wall of claim 1, wherein a welding connector is further arranged between the first wall unit (1) and the second wall unit (2).
3. The vertical joint structure of the assembled diaphragm wall according to claim 1, wherein the tail side of the first wall body unit (1) is provided with an assembling large groove which accommodates the combined steel groove, and a first groove (7) is formed at the bottom of the assembling large groove.
4. The vertical joint structure of the fabricated diaphragm wall according to claim 3, wherein the combined steel groove comprises two first connecting steel pieces (3), the first connecting steel pieces (3) are L-shaped, and the two first connecting steel pieces (3) are oppositely arranged.
5. The vertical joint structure of assembled diaphragm wall according to claim 4, wherein a third connecting steel member (5) is embedded in the large assembling groove, an installation gap is formed between the third connecting steel member (5) and the wall of the large assembling groove, and the first connecting steel member (3) is inserted into the installation gap and fixed with the third connecting steel member (5).
6. The vertical joint structure of the assembled diaphragm wall, as claimed in claim 5, is characterized in that a combined steel groove is formed by enclosing two first connecting steel pieces (3) and the groove bottom of the assembled large groove, and the first connecting steel pieces (3) are flush with the tail of the first wall unit (1).
7. The vertical joint structure of the fabricated diaphragm wall of claim 6, wherein the combined steel insert comprises two second connecting steel members (4), the second connecting steel members (4) are L-shaped, and the second connecting steel members (4) are oppositely arranged.
8. The vertical joint structure of assembled diaphragm wall of claim 7, wherein the opposite bending sides of the second connecting steel piece (4) are inserted into the first connecting steel piece (3) and the tank bottom of the assembled large groove is enclosed to form a combined steel tank.
9. The vertical joint structure of assembled diaphragm wall according to claim 3, wherein a second groove (8) is formed at the side wall of the second wall unit (2), and the openings of the second groove (8) and the first groove (7) are opposite.

Description

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 an assembled underground continuous wall vertical joint structure. Background The traditional cast-in-situ underground continuous wall has long construction period, and needs to carry out procedures such as reinforcement binding, template installation and the like on site, which is time-consuming and is influenced by factors such as weather and the like. The assembled diaphragm wall can greatly shorten the site construction time in a prefabricated component mode. A large amount of noise and dust pollution can be generated in the cast-in-situ construction process, and the assembly type construction can finish most of work in a factory, so that the environmental pollution of a construction site is reduced. Prefabricated wall-units, however, have some drawbacks, and the vertical joint structure of assembled wall-units is a critical part of this technology, which involves the connection and sealing between prefabricated components to ensure the integrity and waterproofing of the wall-units. Along with the continuous development of technology, the vertical joint structure of the assembled diaphragm wall is also continuously optimized so as to meet higher engineering requirements. Disclosure of Invention The utility model provides an assembled type ground wall vertical joint structure for solving the problems existing in the prior art. The vertical joint structure of the assembled diaphragm wall comprises a first wall body unit and a second wall body unit, wherein the first wall body unit and the second wall body unit are connected end to end, a combined steel groove is formed in the tail of the first wall body unit, the combined steel groove is flush with the tail side of the first wall body unit, a combined steel plug-in unit is arranged in the second wall body unit, the combined steel plug-in unit protrudes out of the side wall of the second wall body unit and is matched with the combined steel groove, and a surrounding cavity is formed between the first wall body unit and the second wall body unit. Furthermore, a welding connector is arranged between the first wall unit and the second wall unit. Furthermore, the tail side of the first wall body unit is provided with a large assembling groove, the large assembling groove accommodates the combined steel groove, and the groove bottom of the large assembling groove is provided with a first groove. Furthermore, the combined steel groove comprises two first connecting steel pieces, wherein the first connecting steel pieces are L-shaped, and the two first connecting steel pieces are oppositely distributed. Furthermore, a third connecting steel piece is embedded in the large assembling groove, an installation gap is formed between the third connecting steel piece and the groove wall of the large assembling groove, and the first connecting steel piece is inserted into the installation gap and is fixed with the third connecting steel piece. Furthermore, a combined steel groove is formed by surrounding the two first connecting steel pieces and the groove bottom of the large assembly groove, and the first connecting steel pieces are flush with the tail of the first wall unit. Furthermore, the combined steel insert comprises two second connecting steel pieces, the second connecting steel pieces are L-shaped, and the second connecting steel pieces are distributed in a back-to-back mode. Furthermore, the opposite bending sides of the second connecting steel piece are inserted into the combined steel groove formed by the first connecting steel piece and the groove bottom of the large assembling groove. Further, a second groove is formed at the side wall of the second wall unit, and openings of the second groove and the first groove are opposite. The beneficial effects of the utility model are as follows: when the prefabricated underground continuous wall is inserted into construction, the staggered platform between two adjacent walls can be accurately controlled, and the construction precision is high. After the insertion construction of the adjacent wall units is completed, post-pouring self-compacting concrete and steel square pipe flower pipe grouting construction of the joint is carried out, the subsequent insertion construction of the continuous wall is not affected, and the construction efficiency is remarkably improved. The post-pouring self-compacting concrete at the joint between the adjacent walls can also effectively improve the shearing resistance of the joint and ensure the connection strength of the joint. Drawings FIG. 1 is a schematic top view of the present utility model; FIG. 2 is a schematic view of a partially enlarged construction of the present utility model; FIG. 3 is a cross-sectional view of the first connecting steel member of the present utility model; FIG. 4 is a cro