Self-clamping column type connector assembly type prefabricated underground continuous wall

Abstract

The invention discloses a self-clamping column type connector assembly type prefabricated underground continuous wall. The self-clamping column type connector assembly type prefabricated underground continuous wall comprises a plurality of wall plates which are in socket connection left and right, and the wall plates comprise wall bodies and upright posts which are integrally formed; tenons and clamping grooves which are completely matched are separately arranged on the side edges of the wall bodies and the upright posts; the bottom surfaces of the tenons are bevels of which the exteriors arelow and the interiors are high; the tenons and the clamping grooves of the adjacent wall plates are in seamless socket connection from top to bottom; seam grouting guide pipes are pre-embedded in thetenons; lightening cavities which do not penetrate through the bottoms are formed in the middle parts of the wall bodies; and wall bottom grouting guide pipes and hoisting rings are further pre-embedded in the wall bodies. According to the self-clamping column type connector assembly type prefabricated underground continuous wall, through optimization of connector design, the problem that strengthof left and right connecting connectors of a conventional prefabricated underground continuous wall is insufficient is solved; the clamping groove structure is simplified, and the problems that T-shaped clamping grooves are complex in structure, prefabrication time is long, groove reinforcement quantity is high and cost is high are solved; and the problem that grouting is difficult is solved, andthe direct affect of insufficient grouting on connector resistance is weakened.

Description

technical field [0001] The invention belongs to the technical field of construction, and in particular relates to a prefabricated underground continuous wall which can be assembled with self-clamping column type joints. Background technique [0002] With the acceleration of the urbanization process, the land for urban construction is becoming increasingly scarce, and the utilization of underground space has gradually become a key area of ​​civil engineering construction and development. With the development of urban underground space, foundation pit engineering has developed towards super-large and super-deep, and at the same time it is facing serious challenges from harsh hydrogeological conditions. The most commonly used underground space enclosure structure is the underground diaphragm wall. However, the currently used cast-in-place underground diaphragm wall technology has many problems in the process of forming and pouring, including the difficulty in controlling the q...

AI Technical Summary

Problems solved by technology

At present, the existing assembleable prefabricated underground diaphragm wall adopts the direct plug-in joint design of T-shaped card slot in the horizontal connection. The T-shaped section size of this card slot is only 1 / 3 of the wall thickness, plus the slot The mouth structure is relatively complex, and the joint grouting quality is difficult to control, so that the connection strength between the two wall panels is far from enough

The structural mechanical performance test shows that: the existing T-slot in-line joint is assembled with the underground diaphragm wall, and the joint part becomes the weakest area under stress, which greatly reduces the integrity of the diaphragm wall and makes the wall's enclosure function unable to be fully exerted.

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