Joint device of underground diaphragm wall and construction method thereof

Abstract

The invention relates to a joint device of an underground continuous wall and a construction method of the joint device. The joint device comprises a baffle which allows to be arranged in a pouring space of the underground continuous wall in an inserted mode and serves as a side formwork of the underground continuous wall, a protruding structure which is fixedly arranged at the position, close tothe inner side face of the pouring space of the underground continuous wall, of the baffle, and a dead shore structure arranged at the position, away from the outer side face of the pouring space of the underground continuous wall, of the baffle in a dead shore mode; and the protruding structure is provided with a mounting groove used for fixing of water stop pieces, the dead shore structure is adjusted in a retractable mode, and the baffle tightly abuts against the end side of the poured underground continuous wall in a vertical shape by retractably adjusting the length of the dead shore structure. The pouring quality is ensured, a joint groove is reserved and formed in the underground continuous wall by using the protruding structure, butt-joint mounting and positioning are facilitated,tight connection is endured, and water leakage is prevented.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a joint device for an underground continuous wall and a construction method thereof. Background technique [0002] The underground diaphragm wall is composed of many wall sections. In order to maintain the continuous construction between the wall sections, the joints in the prior art adopt the locking pipe technology, that is, before pouring the concrete of the groove section, a The steel pipe with the same diameter and groove width, that is, the lock pipe, is slowly pulled out after the initial setting of the concrete, so that the end forms a semi-tenon-shaped structure. Then the protrusion of the reinforcement cage of the lower sub-ground wall is lowered to connect, and then the two wall sections are poured with concrete to form a whole. [0003] The general practice is to fill stone chips or sandbags to fix the position of the lock pipe after inserting the prefabricated j...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of the prior art, to provide a joint device for an underground diaphragm wall and its construction method, and to solve the problem in the prior art that the joints of the diaphragm wall are not compact and have hidden dangers of water leakage

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