Construction method of steel-reinforced concrete secant pile and arc-shaped protective tool

Abstract

The invention relates to the technical field of foundation pit supporting in engineering construction, and particularly relates to a construction method of a steel-reinforced concrete secant pile andan arc-shaped protective tool. The steel-reinforced concrete secant pile comprises a secant pile body composed of a plurality of meat piles and plain piles, wherein the meat piles and the plain pilesare sequentially and alternately arranged and engaged with one another. The secant pile body is completed by repeatedly mounting and dismounting the arc-shaped protective tool in pile holes of the plain piles and inserting H-shaped steel ribs into pile holes of the meat piles and pile holes of the plain piles. By the adoption of the method of inserting the H-shaped steel ribs, the rigidity and strength of the secant pile body can be improved, the pile diameter of a supporting pile is reduced, and the excavation amount and the concrete pouring amount are reduced; the H-shaped steel ribs can bepulled out to be recycled, so that the material cost is reduced, the construction period is shortened, and meanwhile environmental protection is facilitated; and the arc-shaped protective tool is placed before plain pile concrete pouring, then in-mold concrete pouring is conducted, and thus materials can be further saved.

Description

technical field [0001] The invention relates to the technical field of foundation pit support for engineering construction, and more specifically relates to a construction method of a steel-reinforced concrete occlusal pile and an arc-shaped protective gear. Background technique [0002] At present, most of the deep foundation pit support adopts the form of occlusal pile + inner support or occlusal pile + anchor cable, because the concrete occlusal pile has the advantage that it is not only used as a support pile but also has a good water interception effect. Usually, a pile with a steel cage is called a pile, and a pile of plain concrete arranged between two piles is called a pile. When driving a pile, the pile and the pile are arranged at intervals. Meat piles, so that they bite together to form a concrete continuous wall, which can be used as support and can intercept water, but the price of the steel cage is relatively high, and the steel cage can not be taken out after ...

AI Technical Summary

Problems solved by technology

Usually, a pile with a steel cage is called a pile, and a pile of plain concrete arranged between two piles is called a pile. When driving a pile, the pile and the pile are arranged at intervals. Meat piles, so that they bite together to form a continuous concrete wall, which can be used as support and can intercept water, but the price of the steel cage is relatively high, and the steel cage cannot be taken out after being inserted into the pile, which leads to a higher project cost. high

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