Manual screw type self weight loading device for physical landslide model test

Abstract

The invention discloses a manual screw type self weight loading device for a physical landslide model test. The self weight loading device comprises a bottom plate, a sliding surface adjustment mechanism and a thrust loading mechanism, wherein the sliding surface adjustment mechanism is positioned on the bottom plate and comprises a sliding panel, upper connecting rods, lower connecting rods, a supporting plate, inserting blocks, inserting grooves, screw rods and hand wheels; the supporting plate is fixed to the bottom plate; the front part and the rear part of the supporting plate are hinged with the lower ends of a pair of the lower connecting rods respectively; the upper ends of the lower connecting rods are hinged with the upper connecting rods to form connecting rods; each pair of the upper connecting rods is hinged with one inserting block; each pair of the lower connecting rods is hinged with one inserting groove; the screw rods penetrate through the inserting grooves and are in threaded connection with the corresponding inserting blocks; the bottom ends of the screw rods are fixed with the hand wheels; the front end of the sliding panel is hinged with the tops of a pair of the upper connecting rods at the front part of the supporting plate; the rear end of the sliding panel is hinged with the tops of a pair of the upper connecting rods at the rear part of the supporting plate; the thrust loading mechanism comprises a loading platform; and the loading platform can slide frontwards and backwards along the sliding panel as the bottom surface of the loading platform is in sliding fit with the top surface of the sliding panel.

Description

technical field [0001] The invention belongs to the field of geological disaster model tests, in particular to a manual screw type 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 method of manual loading can exert a stable force on the trailing edge of the landslide, it is difficult to accurately control the magnitude and direction of the thrust of the landslide, and the boundary conditions of the applied external force do not match the actual situation

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