Multi-functional soil arching instrument

Abstract

The invention relates to a demonstrative experiment instrument for a slide-resistant pile supporting and retaining mechanism and an end bearing pile supporting and retaining mechanism, in particular to a multi-functional soil arching instrument which comprises a foundation base, a power system, a model pile system, transverse supporting boundaries, vertical supporting boundaries and a model pile cover plate. The model pile system is arranged on the foundation base. The transverse supporting boundaries are arranged at the front end and the rear end of the upper surface of the foundation base. The vertical supporting boundaries are arranged at the left end and the right end of the upper surface of the foundation base. The vertical supporting boundaries and the transverse supporting boundaries surround the model pile system to form a rectangle. The model pile system comprises a front load uniform distribution assembly, a rear load uniform distribution assembly, a left baffle, a right baffle and a model pile bottom plate. Deformation and pressure distribution of soil in the model pile system along a model pile are observed according to a force applied by a thruster, and the soil arching effect and a pile-soil interaction phenomenon under different stress condition, different conditions and different slopes can be observed intuitively.

Description

technical field [0001] The invention relates to a demonstration experiment instrument for the supporting mechanism of anti-sliding piles and the supporting mechanism of end-bearing piles, in particular to a multifunctional soil arch instrument. Background technique [0002] In the field of soil mechanics, soil arching is used to describe a phenomenon of stress transfer, which is realized by exerting the shear strength of soil. The soil arching effect refers to the phenomenon that the support rigidity is relatively large while the rigidity of the enclosure structure is small, and the earth pressure behind the wall increases locally. The local soil mass moves, while the rest remains in the original position. This relative movement in the soil Resisted by the shear strength of the soil, the pressure on the moving part of the soil decreases and the pressure on the stationary part increases. [0003] The arch effect in the soil layer is different from the arch structure. The arc...

AI Technical Summary

Problems solved by technology

[0004] Anti-slide piles have the advantages of high rigidity, good stability, and convenient construction. They are widely used in landslide control and protection. In terms of strength, it also has a very wide range of uses. Anti-slide piles and end-bearing piles use discrete construction to achieve continuous support, and then the soil arch effect plays a vital role in the process of discrete construction to achieve continuous support. Soil arching effect is an important part of the retaining mechanism of this type of structure, but the soil arching effect mainly forms a certain distance below the surface, and requires certain stress, geological conditions and slope conditions, but it cannot be realized in different stresses in the current existing technology. Realistic reproduction of soil arching effect and pile-soil interaction in different conditions, different conditions and different slope conditions

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