Large depth underground continuous wall water-stop joint device

Abstract

The invention relates to a water sealing joint device of a large-depth underground continuous wall. The water sealing joint device consists of a water sealing connector plate and a rubber water stop; the water sealing connector plate comprises connector side plates connected in sequence, two arc shape plates, an H-shaped groove plate, an upper end plate and a lower end plate; the two arc shape plates are oppositely arranged in the middle at intervals along the width of a connector side plate, and the H-shaped groove plate is arranged in the middle between the two arc shape plates; the H-shaped groove plate has two opening ends, one end is fixed and connected with the two arc shape plates, and the other end is fixed and connected with the connector side plate; and the upper end plate and the lower end plate are arranged at the end parts of the two arc shape plates and the H-shaped groove plate. An opening slot is arranged at the middle part of the upper end plate and the lower end plate, and the rubber water stop is embedded in a gap between the opening slot and the opening end of the H-shaped groove plate. The connector side plate adopts a long strip shape thick steel plate, the upper end plate and the lower end plate adopt semi-circular steel plates, and the composite cross section of the two arc shape plates is matched with the shape of the upper end plate and the lower end plate. The depth of the opening slot of the upper end plate and the lower end plate is approximately identical to half of the width of the rubber water stop. The invention can improve the prior construction process, reduce the construction cost, and effectively improve the water sealing performance of the structure of the underground continuous wall.

Description

technical field [0001] The invention belongs to the technical field of underground diaphragm wall engineering construction, and relates to auxiliary equipment for underground diaphragm wall engineering construction, in particular to a large-depth underground diaphragm wall water-stop joint device. Background technique [0002] With the rapid development of my country's construction industry, underground diaphragm wall engineering technology has been widely used in the field of foundation engineering. The underground diaphragm wall is to use a special trenching equipment on the ground to excavate a long and narrow deep trench in the case of mud retaining wall, place a steel cage in the trench, pour concrete, and build a reinforced concrete wall section. These wall sections are connected one by one for water interception, seepage prevention, soil retaining or load bearing. [0003] This kind of wall body constructed by connecting sections is often the enclosure body for water...

AI Technical Summary

Problems solved by technology

However, its deficiencies or defects are also fully revealed in engineering practice

[0009] On the one hand, because the cross-section of the waterproof joint plate is roughly two trapezoidal combinations arranged up and down, it is difficult to dismantle it as a whole in large-depth engineering construction

[0010] On the other hand, because the two ends and the middle part of the cross-section of the rubber waterstop are circular, its anchoring force in the concrete is small, and it may be pulled out of the concrete if it is accidentally operated during the demoulding operation , causing the waterstop to fail to bury and lose the effect of waterproofing

[0011] Therefore, there is the limitation of engineering construction depth in above-mentioned this waterproof joint device

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