Continuous wall anti-collapse pouring formwork suitable for soft soil area and construction method

Abstract

The invention relates to a continuous wall anti-collapse pouring formwork suitable for a soft soil area and a construction method, and belongs to the technical field of underground continuous wall construction. The continuous wall anti-collapse pouring formwork comprises a soil facing side supporting plate, a soil backing side supporting plate, an end plate, a bottom supporting plate and a mud discharging pipe, the soil facing side supporting plate, the soil backing side supporting plate, the end plates and the bottom supporting plate define a box-shaped structure with an open top, a mud discharging hole is formed in the bottom supporting plate, the bottom of the mud discharging pipe is inserted into the mud discharging hole, and the top of the mud discharging pipe exceeds the tops of thesoil facing side supporting plate and the soil backing side supporting plate and extends towards the outside of the underground continuous wall groove section. The formwork can effectively prevent wall protection mud from entering the formwork, it is guaranteed that an underground continuous wall is poured in a waterless environment, and mud inclusion during concrete pouring is prevented; a reinforcement cage cannot float upwards due to being lifted by mud when being lowered, so that the concrete pouring quality is ensured; and when underground continuous wall concrete is poured, a guide pipedoes not need to be inserted in advance, the concrete cannot disturb the groove wall, and the groove wall of a soft soil area is effectively prevented from collapsing.

Description

technical field [0001] The invention relates to the technical field of underground diaphragm wall construction, in particular to a diaphragm wall anti-collapse pouring template and a construction method suitable for soft soil areas. Background technique [0002] With the rapid development of the economy and the continuous improvement of the level of urbanization, the development of underground space is also increasing. The open cut method is the most commonly used construction method, and the underground diaphragm wall is one of the most commonly used foundation pit enclosure structures in the open cut method. one. [0003] However, at present, most of the underground diaphragm walls are constructed by on-site underwater pouring. When pouring concrete, it is necessary to continuously inject mud into the groove section, and there are the following problems: [0004] 1. It is not easy to guarantee the quality during pouring [0005] When the ground connection wall is poured ...

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Problems solved by technology

[0014] The purpose of the present invention is to provide a diaphragm wall anti-collapse pouring template and construction method suitable for soft soil areas, so as to solve the problem of difficulty in ensuring the quality of the diaphragm wall in the underwater pouring construction in the prior art and the flatness of the wall surface in weak strata. Difficult to control, the steel cage floats up, the pipe enters the mud when the concrete is poured, and the groove wall of the ground connection wall in the soft soil area is easy to collapse

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