Manual rack type dead-weight loading device for landslide physical model test

Abstract

The invention discloses a manual rack type dead-weight loading device for a landslide physical model test. The device comprises a bottom plate, a sliding surface adjusting mechanism and a thrust loading mechanism, wherein the sliding surface adjusting mechanism is located on the bottom plate and comprises a sliding panel, two groups of racks and gears which are mutually meshed, two transmission shafts, two groups of worm wheels and worms which are mutually meshed, two rocking handles and a guide holder; the guide holder is fixed on the bottom plate; vertical guide grooves are formed at the front part and the rear part of the guide holder respectively; one group of racks are located in the guide groove at the front part of the guide holder, while the other group of racks are located in the guide groove at the rear part of the guide holder; each group of racks and one of worm wheels are arranged on the guide holder through the transmission shafts; each worm is connected with one of the rocking handles; the front end of the sliding panel is hinged with the tops of the group of racks which are located at the front part of the guide holder, while the rear end of the sliding panel is arranged on the group of racks which are located at the rear part of the guide holder; the thrust loading mechanism comprises a loading platform; the bottom of the loading platform is in sliding fit with the top surface of the sliding panel; and the loading platform can slide along the sliding panel forth and back.

Description

technical field [0001] The invention belongs to the field of geological disaster model tests, in particular to a manual rack-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 conditi...

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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