Energy-dissipating shock-absorbing anti-liquefaction rigid-flexible anti-slide pile and its construction method

Abstract

An energy dissipation, shock absorption and anti-liquefaction rigid and flexible slide-resistant pile and a construction method belong to the slope supporting technology field. The energy dissipation, shock absorption and anti-liquefaction rigid and flexible slide-resistant pile is composed of a hollow tubular pile, broken stones, anchor cables and air cushions, wherein the hollow tubular pile comprises first-type hollow tubular piles and second-type hollow tubular piles, which are all prefabricated with reinforcement concrete; crossed plates are embedded in an external barrel; water permeating holes are formed in the external barrel in a plum blossom shape; anchor cables penetrate through the hollow tubular piles and the air cushions are covered at the outer side; one first-type hollow tubular pile and many second-type hollow tubular piles are arranged in sequence in the pile holes of a slope body; the tops and the bottoms of the hollow tubular piles are embedded with one another; the hollow tubular pile is filled with the broken stones and a cover plate is arranged on the top; the anchor cables are anchored on the bottom plate and the cover plate through an anchorage device and the air cushions are full of gas. The slide-resistant pile is prefabricated, assembled and formed to be a rigid and flexible body, has high load-bearing capacity, plays a role in well dissipating energy under earthquake condition, has good drainage capacity and prevents soil around the pile from being liquefied; the construction method is simple and quick and the engineering cost is low.

Description

technical field [0001] The invention belongs to the technical field of slope supports, and in particular relates to an energy-consuming shock-absorbing anti-liquefaction rigid-flexible anti-slide pile and a construction method thereof, which are mainly applicable to slope engineering and landslide control engineering. Background technique [0002] Landslides are the main phenomenon of disasters in mountainous areas. Landslide disasters directly affect people's lives and property safety. Landslide control is a national disaster prevention and mitigation project with high technical difficulty, large investment, and huge destructiveness. Earthquakes are one of the main factors that induce landslides. Under the action of earthquakes, excess static pore water pressure is generated in sandy soil or unconsolidated rock and soil layers. When the pore water pressure reaches the total stress value, the effective stress is reduced to zero, and an earthquake occurs. liquefaction. Anti-...

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Problems solved by technology

[0004] The purpose of the present invention is to address the deficiencies in the prior art above, to provide an anti-slide pile with energy consumption, shock absorption and anti-liquefaction and its construction method, to solve the difficult problem that the anti-slide pile has poor anti-seismic performance and cannot prevent the liquefaction of the surrounding soil, and reduce the Disaster management cost

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