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CN-224199890-U - Joint structure of underground diaphragm wall

CN224199890UCN 224199890 UCN224199890 UCN 224199890UCN-224199890-U

Abstract

The utility model belongs to the technical field of civil engineering, and discloses an underground continuous wall joint structure which comprises a first groove section, a second groove section, a first connecting piece and a second connecting piece, wherein the first groove section is provided with a first terminating part, the second groove section is provided with a second terminating part, the second terminating part is connected with the first terminating part, the first connecting piece comprises a supporting part and an inserting part which are mutually connected, the supporting part is arranged on the first groove section, the inserting part is arranged at one end of the supporting part facing the second groove section, the second connecting piece is arranged on the second terminating part, the second connecting piece is provided with a connecting groove, the inserting part is inserted in the connecting groove, and the outer wall of the inserting part and/or the inner wall of the connecting groove are/is provided with water stopping pieces. The water stop piece has the characteristic of swelling when contacting water, can be rapidly swelled when contacting water, fills a tiny gap between the plug-in mounting part and the inner wall of the connecting groove, and improves the waterproof performance between the first end connection part and the second end connection part.

Inventors

  • LI LIANBAO
  • WANG NI
  • CUI JIANG

Assignees

  • 腾达建设集团股份有限公司

Dates

Publication Date
20260505
Application Date
20250428

Claims (10)

  1. 1. Underground diaphragm wall connects structure, its characterized in that includes: a first groove section (1), wherein one end of the first groove section (1) is provided with a first end connection part (11); A second groove section (2), wherein one end of the second groove section (2) is provided with a second end connection part (21), and the second end connection part (21) is connected with the first end connection part (11); The first connecting piece (3), the first connecting piece (3) comprises a supporting part (31) and an inserting part (32) which are connected with each other, the supporting part (31) is arranged on the first groove section (1), and the inserting part (32) is positioned at one end of the supporting part (31) facing the second groove section (2); The second connecting piece (4), second connecting piece (4) set up in second termination portion (21), second connecting piece (4) are provided with spread groove (41), cartridge portion (32) cartridge in spread groove (41), the outer wall of cartridge portion (32) and/or the inner wall of spread groove (41) is provided with sealing up piece (5).
  2. 2. The underground diaphragm wall joint structure according to claim 1, wherein the length of the water stop member (5) is not less than the height of the first groove section (1) and the second groove section (2).
  3. 3. The underground diaphragm wall joint structure according to claim 1, wherein the first connecting pieces (3) and the second connecting pieces (4) are provided with at least two in one-to-one correspondence, respectively, and the at least two first connecting pieces (3) are sequentially provided along the thickness direction of the first groove section (1).
  4. 4. The underground diaphragm wall joint structure according to claim 1, wherein the second terminating portion (21) is a cross-shaped plate, and comprises a first plate (211) and a second plate (212) which are connected with each other, the first plate (211) is connected with one end of the second groove section (2) facing the first groove section (1), the second plate (212) is convexly arranged on one side of the first plate (211) facing the first groove section (1), the second connecting pieces (4) are provided with two, and the second plate (212) is arranged between the two second connecting pieces (4).
  5. 5. The underground diaphragm wall joint structure according to claim 1, wherein the first connecting member (3) is a T-shaped plate, the supporting portion (31) is a web of the T-shaped plate, and the insertion portion (32) is a flange of the T-shaped plate.
  6. 6. The underground diaphragm wall joint structure according to claim 1, wherein the first groove section (1) further comprises a reinforcing bar structure (12), and the supporting portion (31) is fixedly connected with the reinforcing bar structure (12).
  7. 7. The underground diaphragm wall joint structure according to claim 1, wherein the connecting groove (41) has a first opening and a second opening at both ends in the height direction of the second groove section (2) and a third opening toward the first groove section (1), and the width of the third opening is smaller than the width of the groove bottom of the connecting groove (41).
  8. 8. A diaphragm wall joint structure according to any one of claims 1 to 7, wherein the water stop (5) is an ethylene propylene diene monomer rubber seal.
  9. 9. A diaphragm wall joint structure according to any one of claims 1-7, wherein a grouting channel is provided at the junction of the first and second end joints (11, 21) for injecting a waterproof slurry after the first and second end joints (11, 21) are connected.
  10. 10. A diaphragm wall joint structure according to any one of claims 1-7, characterized in that the surfaces of the first joint part (11), the first connection member (3) and the second connection member (4) are provided with a corrosion-resistant coating.

Description

Joint structure of underground diaphragm wall Technical Field The utility model relates to the technical field of civil engineering, in particular to an underground diaphragm wall joint structure. Background The underground diaphragm wall is characterized in that a long and narrow deep groove is dug by adopting a groove digging device along the periphery of an underground structure to be built on the ground, concrete is poured after the groove is cleared, a unit groove section is built, and a continuous reinforced concrete wall is built underground section by section. The underground continuous wall joint is a key part for connecting each unit groove section during the sectional construction of the wall body, and the quality of the underground continuous wall joint directly influences the integrity, the seepage resistance and the structural strength of the wall body. The underground diaphragm wall joint in the prior art comprises a circular locking port pipe joint, an I-steel joint, a cross steel plate joint, a milling joint and the like, and is mainly used for transmitting shearing force and bending moment between groove sections, so that the groove sections form an integral structure of the underground diaphragm wall, and meanwhile, underground water or slurry is prevented from leaking through the joints between the groove sections. However, existing joint designs often have difficulty completely preventing groundwater or mud from penetrating into the interior of the wall from the joint location, resulting in poor waterproof performance of the underground diaphragm wall. Disclosure of utility model The utility model aims to provide an underground diaphragm wall joint structure which solves the problem that the joint parts of two adjacent groove sections are poor in waterproof performance. To achieve the purpose, the utility model adopts the following technical scheme: underground diaphragm wall joint structure, wherein includes: A first groove section, wherein one end of the first groove section is provided with a first end connection part; A second groove section, wherein one end of the second groove section is provided with a second termination part, and the second termination part is connected with the first termination part; the first connecting piece comprises a supporting part and an inserting part which are connected with each other, the supporting part is arranged on the first groove section, and the inserting part is positioned at one end of the supporting part, which faces the second groove section; The second connecting piece, the second connecting piece set up in the second termination portion, the second connecting piece is provided with the spread groove, cartridge portion cartridge in the spread groove, the outer wall of cartridge portion and/or the inner wall of spread groove is provided with the stagnant water spare. Optionally, the length of the water stop is not smaller than the height of the first groove section and the second groove section. Optionally, the first connecting pieces and the second connecting pieces are in one-to-one correspondence and are respectively provided with at least two, and the at least two first connecting pieces are sequentially arranged along the thickness direction of the first groove section. Optionally, the second terminating portion is the cross plate, including interconnect's first plate and second plate, first plate connect set up in second slot section orientation first slot section's one end, the second plate is protruding to be located first plate orientation one side of first slot section, the second connecting piece is provided with two, the second plate sets up in two between the second connecting piece. Optionally, the first connector is a T-shaped plate, the supporting portion is a web of the T-shaped plate, and the inserting portion is a flange of the T-shaped plate. Optionally, the first groove section further comprises a reinforcement structure, and the support part is fixedly connected with the reinforcement structure. Optionally, the connecting groove has a first opening and a second opening along the two ends of the height direction of the second groove section and a third opening facing the first groove section, and the width of the third opening is smaller than the width of the bottom of the connecting groove. Optionally, the water stop member is an ethylene propylene diene monomer rubber sealing member. Optionally, a grouting channel is arranged at the connection part of the first end connection part and the second end connection part, and the grouting channel is used for injecting waterproof slurry after the first end connection part and the second end connection part are connected. Optionally, the surfaces of the first end portion, the first connector and the second connector are each provided with a corrosion resistant coating. The utility model has the beneficial effects that: The utility model provides an underground continuous wa