A kind of sampling tube detachable type loose accumulation structure analysis test equipment

Abstract

The invention discloses sampling tube detachable type analysis test equipment for a loose deposit structure. A sampling tube with a rectangular cross section comprises a left panel, a rear panel, a right panel and a front panel in an enclosing manner, and the front panel can slide vertically in vertical chutes of the left panel and the right panel; a sampling tube top connecting piece is connectedto the top of the sampling tube, and a tube seal and a rubber band are used for sealing a tube opening of the sampling tube after sampling; the tube seal is further equipped with an opening cooperating with the front panel for vertical sliding and passing; the equipment further comprises a top seal insert piece, a guide pulley, a connecting rod, connecting rod pulleys, a rectangular frame and other parts. The equipment fills up the blank in analysis of refined deposit structures of loose media in physical model experiments for slides in rugged topographical areas, and provides possibility forin-depth exploration of deposit mechanism for the loose media in the physical model experiments. Besides, the test equipment is simple in structure, convenient to assemble and disassemble and high inperformance cost ratio.

Description

technical field [0001] The invention relates to the technical field of tests related to landslide geological disasters, in particular to a structure analysis test device for loose accumulation bodies with detachable sampling tubes. Background technique [0002] Giant rock avalanche-debris flow is one of the landslide disasters. High and steep rock mass is induced by external factors such as earthquake, rainfall or artificial damage, and the rock mass is unstable and damaged, and it occurs during the downward high-speed movement under the action of gravity. Broken, forming a debris flow, and finally piled up at the foot of the mountain slope, it often poses a great threat to the safety of important downstream structures and personnel, causing catastrophic events. The accumulation process of high-speed debris flow has always been a research hotspot of scholars at home and abroad, and physical model tests are currently an important means to reveal the mechanism of debris accumu...

AI Technical Summary

Problems solved by technology

[0004] At present, in the indoor chute test, the analysis of the loose accumulation in the debris flow simulation is mainly to observe the surface of the accumulation with the naked eye, and to carry out rough sub-area and layered screening to obtain its particle size distribution, and it is impossible to directly observe the accumulation Internal real accumulation structure and vertical particle size distribution characteristics

Moreover, rough sub-area and layered screening cannot obtain the internal structural characteristics of the accumulation body, and cannot carry out fine sampling and particle size analysis of the debris at key positions, which is far from meeting the test requirements

In addition, there are certain difficulties in how to take out the granular samples in the sampling tube in layers for analysis, and this operation is extremely necessary

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