Hydraulic-lifting self-weight loading device for landslide physical model test

Abstract

The invention discloses a hydraulic-lifting self-weight loading device for a landslide physical model test. The hydraulic-lifting self-weight loading device for a landslide physical model test comprises a base, a lifting mechanism, an angle adjustment mechanism and a thrust loading mechanism. The lifting mechanism is arranged on the base. An upper end of the lifting mechanism is connected to the angle adjustment mechanism. The angle adjustment mechanism comprises a support plate, a sliding panel and an upper hydraulic expansion link. The support plate is connected to the upper end of the lifting mechanism. A front end of the support plate is hinged to a front end of the sliding panel by a rotation shaft. A lower end of the upper hydraulic expansion link is fixed to the support plate and an upper end of the upper hydraulic expansion link supports the bottom of the sliding panel. Through expansion of the upper hydraulic expansion link, an included angle between the support plate and the sliding panel can be elastically adjusted. The thrust loading mechanism comprises a loading platform for bearing heavy items. The bottom surface of the loading platform is in a slip fit relationship with the top surface of the sliding panel and the loading platform can slide forward or backward along the sliding panel. The hydraulic-lifting self-weight loading device for a landslide physical model test can conveniently and fast adjust a value and a direction of a thrust force on a trailing edge of a landslide physical model, makes a thrust force accord with actual edge conditions and provides a stable loading force.

Description

technical field [0001] The invention belongs to the field of geological disaster model tests, in particular to a hydraulic lifting self-weight loading device for physical model tests of landslides. Background technique [0002] The landslide physical model test belongs to the category of geomechanics model test. Its theory originated from the structural model test established in the early 20th century. At present, it has gradually developed and extended to landslide field model test, landslide bottom friction model test, landslide frame model test, There are many research directions such as landslide centrifugal model test and landslide comprehensive model test. Among them, the landslide frame model test means that in the usual gravity field, the model is made by using similar materials that meet the similarity criterion in the frame model groove, and the deformation and various mechanical properties of the model are measured under the condition that the main boundary condit...

AI Technical Summary

Problems solved by technology

[0005] (1) The thrust loading and control system of the trailing edge of the existing landslide physical model is often complex in structure and cumbersome in operation, and it is difficult to meet the requirements of fast, stable and continuous thrust loading on the trailing edge of the landslide;

[0006] (2) Although the existing artificial stacking method can apply a stable force on the trailing edge of the landslide, it is difficult to accurately control the magnitude and direction of the landslide thrust, and the boundary conditions of the applied external force do not match the actual situation

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