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

A technology of infiltration and slope, applied in measurement devices, permeability/surface area analysis, suspension and porous material analysis, etc., can solve problems such as infiltration of unfrozen soils

Inactive Publication Date: 2012-06-20
BEIJING JIAOTONG UNIV
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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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  • Device for testing infiltration capacity of frozen soil side slope during raining
  • Device for testing infiltration capacity of frozen soil side slope during raining
  • Device for testing infiltration capacity of frozen soil side slope during raining

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Embodiment Construction

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] A device for testing permafrost slope infiltration during rainfall, such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 with Figure 7 shown.

[0035] A device for testing permafrost slope infiltration during rainfall includes: freezer 1, soil sample box 2, coolant pipe 3, freezer cover 4, second bracket 5, Martens bottle 6, water temperature regulator 7 , Rainfall device 8, simulated sunshine equipment 9, slope water collection tank 10, box bottom water collector 11, third support 12, box bottom outlet pipe 13, first support 14, thermistor 15, pore pressure gauge 16, tensiometer 17 , Soil sample box slope water collector 18, coolant pipe inlet (a), coolant pipe outlet (b).

[0036] Rainfall device 8 and simulated sunshine equipment 9 are installed on the first bracket 14, and simulated sunshine e...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08
Inventor 沈宇鹏王连俊刘建坤田亚护冯瑞玲金钰梅沈坚锋沈志刚赵久欢钟顺元李治卫韬
Owner BEIJING JIAOTONG UNIV
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