Model test method of collision disintegration effect of blocky landslide

Abstract

The invention provides a model test method of a collision disintegration effect of blocky landslide, aiming at studying the mechanism that in a high-speed long-distance movement process of the blocky rocky landslide, the distance and influence range of a landslide movement are increased by means of the kinetic energy which is transferred by the disintegrating of the landslide or the impact on the surrounding objects due to collision. The method comprises the following steps: placing a landslide body into a sliding groove, lifting the sliding groove by using an electric hoist device of the sliding groove according to a preset angle so as to enable the bottom of the sliding groove to form a certain inclination angle, turning on a hydraulic valve to enable the landslide body to slide down, enabling the landslide body to collide a body which is to be collided and is placed in front of the landslide body, and recording the instantaneous collision force between the landslide body and the body to be collided by using a force transducer arranged at the headmost edge of the landslide body. The invention aims at providing a model test method of a collision disintegration energy transfer effect of the blocky rocky landslide, thus obtaining the moving accumulation characteristics of the blocky rocky landslide during movement under the collision disintegration effect; the energy transfer effect of the landslide is proposed by comparing the motion characteristics of bodies which are to be impacted and are composed of different sizes of blocks.

Description

technical field [0001] The invention relates to a model test method for the impact and disintegration effect of massive landslides, in particular to a model test method for the energy transfer effect of the impact and disintegration of massive rock landslides. Background technique [0002] High-speed remote rock landslides usually have the characteristics of fast movement speed, long movement distance and great destructive force, especially the fluidized movement characteristics during the movement process, which are difficult to predict and prevent, and often cause huge losses to personnel and economy, such as Chongqing Wulong Jiwei Mountain rock mass high-speed long-distance landslide, the Jiwei Mountain landslide slide body often collides with the surrounding mountains during the movement, or disintegrates due to the difference in its own speed, and produces the transfer of motion energy, resulting in the slide body It can move for a longer distance, and it is almost impo...

AI Technical Summary

Problems solved by technology

[0002] High-speed remote rock landslides usually have the characteristics of fast movement speed, long movement distance and great destructive force, especially the fluidized movement characteristics during the movement process, which are difficult to predict and prevent, and often cause huge losses to personnel and economy, such as Chongqing Wulong Jiwei Mountain rock mass high-speed long-distance landslide, the Jiwei Mountain landslide slide body often collides with the surrounding mountains during the movement, or disintegrates due to the difference in its own speed, and produces the transfer of motion energy, resulting in the slide body It can move for a longer distance, and it is almost impossible to capture the energy transfer effect of collision disintegration at the landslide site. Therefore, a physical simulation method should be proposed to realize the collision effect. However, there are few existing landslide chute motion model tests. The existing test technology uses The chute test studies the high-speed collision test, scraping effect and accumulation reverse sequence effect during the movement of the landslide. The existing technology is mainly used to only obtain the movement characteristics of the slide body during the movement process, and the slide is not considered in the analysis of the movement of the landslide. The collision effect inside the body or in contact with surrounding objects and the movement characteristics after the impact is broken and disintegrated, and the existing chute motion model test does not adopt a suitable method of making and arranging the impacted body, three-dimensional imaging equipment, and the color difference of the impacted body. Therefore, it is necessary to propose a physical model test method to study the collision effect in the process of landslide movement, provide technical support for the analysis of landslide movement mechanism, and provide more information for the prediction and prevention of this type of landslide and the early identification of dangerous areas. scientific basis

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