Device for testing infiltration capacity of frozen soil side slope during raining

Abstract

A device for testing infiltration capacity of a frozen soil side slope during raining belongs to the field of civil engineering equipment, solves the problem that the traditional device for studying the rainfall infiltration capacity cannot be used for studying the infiltration capacity of frozen soil, and includes a refrigerator box, a soil sample box, a refrigerator box cover, a Markov bottle, a water temperature regulator, a raining device, sunshine simulation equipment, a slope surface water collecting tank, a box bottom water collector and a monitoring element, wherein a refrigerating fluid pipe is laid on the inner wall of the refrigerator box in a curved manner; an inlet and an outlet are arranged on the box wall of the refrigerator box and connected with a pipeline of a refrigerating machine outside the refrigerator box; the water temperature regulator is placed in the Markov bottle, and the water temperature of the Markov bottle is 5 DEG C to 30 DEG C; and the sunshine simulation equipment is installed above the soil sample box. The device is used for simulating the infiltration condition of the frozen soil side slope during raining, studying the influence degrees of all the influence factors on the rainfall infiltration capacity and providing the reference for the evaluation on the frozen soil slope stability, thereby being used for guiding the design and maintenanceof the side slope project for railways and highways in frozen soil areas.

Description

technical field [0001] The invention belongs to the field of civil engineering equipment, in particular to a device for testing the infiltration of frozen soil slopes during rainfall. Background technique [0002] The permafrost on the Qinghai-Tibet Plateau has the greatest seasonal thaw depth at the end of autumn, and under the induced effect of rainfall, permafrost slopes often become unstable during this period. Rainfall infiltration in the warm season increases the water content of the permafrost freeze-thaw interface, reduces the matrix suction, reduces the shear strength, and increases the melting depth, resulting in slope instability. [0003] With the development of construction projects in permafrost regions, the slope problems in this section are also increasing. Because temperature is an important factor affecting the performance of frozen soil, the infiltration of rainwater in frozen soil also affects the heat balance of frozen soil slope. At present, the tradi...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is the problem that the traditional device for studying the law of rainfall infiltration cannot conduct research on the amount of infiltration of frozen soil, and a device for testing the amount of infiltration of frozen soil slopes during the rainfall process is provided

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