Underground diaphragm wall air bag type interface box and use method thereof

Abstract

The invention discloses an underground diaphragm wall air bag type interface box and a use method thereof. The underground diaphragm wall air bag type interface box comprises an air bag, a reinforcement cage and fixing buckles, wherein interface grooves are formed in the two sides of the reinforcement cage; multiple buckle fixing ribs are arranged on the outer sides of the interface grooves; the air bag is located inside the interface grooves; the section of the air bag is rectangular; a charging connector is arranged at the upper end of the air bag; pulling-out lifting handles are arranged on the two sides of the charging connector; the fixing buckles are located inside the buckle fixing ribs; and the air bag and the fixing buckles are fixed to one another in a mutual squeezing mode. The use method comprises the first step of machining of the air bag, the second step of machining of reinforcing steel bars, the third step of installation of the air bag, the fourth step of sinking of the reinforcement cage and pouring of concrete, and the fifth step of pulling out of the air bag.

Description

technical field [0001] The invention relates to the field of civil engineering construction, in particular to a method for using an airbag type interface box machine for an underground continuous wall. Background technique [0002] In the field of civil engineering construction, especially in the field of subway and building construction, the construction of underground diaphragm walls is often carried out. The underground diaphragm walls are constructed in sections, with interface grooves set between the two sections, and the end of one section is "concave". The adjacent panels are embedded in the "concave"-shaped interface in a "convex" shape to form a mutual fitting to ensure the integrity and water-tightness of the entire underground continuous wall. However, if the "concave"-shaped interface is not filled and closed, concrete will often flow in when pouring concrete, which will seriously affect the tightness of the interface and cause water leakage from the ground to th...

AI Technical Summary

Problems solved by technology

However, if the "concave"-shaped interface is not filled and closed, concrete will often flow in when pouring concrete, which will seriously affect the tightness of the interface and cause water leakage from the ground to the wall. Traditional construction uses foam boards to fill it, or Interface box made of steel

When using foam boards, it is necessary to manually install the foam boards into the interface slots one by one and fix them. After the concrete is poured, use an impact hammer to remove the foam boards. This method is not only cumbersome to operate, but also a large number of foam boards cannot be recycled and mixed into the mud. generate a lot of waste and pollution

Although the steel interface boxes can be reused, since the height of the ground and the wall is 20m or higher, if the weight of each interface box is nearly 10 tons according to the full length, the hoisting requires a large-tonnage crawler crane to operate, and the length is very long. It is inconvenient, and even the phenomenon that it cannot be pulled out often occurs

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