Self-cooling anchor rod system and construction method thereof

Abstract

The invention provides a self-cooling anchor rod system and a construction method thereof. The self-cooling anchor rod system comprises a cooling device, and an anchoring device which is obliquely inserted into a slope body; the anchoring device comprises an inner pipe, an outer pipe, a U-shaped pipe, a hollow anchoring pipe, an anchoring tool and a base plate; the cooling device comprises a compressor, a condensing pipe, a capillary tube, a temperature controlled switch, a connecting pipe and a temperature sensor; a solar cell panel and a control box are mounted outside the slope body, and the compressor is mounted in the control box; the compressor is connected with the condensing pipe, the capillary tube and a temperature meter, the connecting pipe is connected with the U-shaped pipe ofa cooling anchoring pipe and the compressor, and the temperature sensor is mounted in the middle of a slope body instable layer; and the temperature controlled switch controls the solar cell panel and the compressor to be connected and disconnected. Heat erosion of the warm season ambient temperature to a permafrost slope is avoided, the permafrost slope is prevented from being heat-molten and collapsed, the structure is simple, anchoring and cooling can be achieved simultaneously, the effect is good, construction is easy and convenient, and the construction cost is low.

Description

technical field [0001] The application relates to the technical field of frozen soil engineering, in particular to a self-cooling bolt system and construction method suitable for the reinforcement of frozen soil slope engineering. Background technique [0002] Frozen soil refers to the rock and soil mass containing ice below 0°C, and its mechanical properties have significant dependence on temperature and thermal instability. Under the action of periodic seasonal freezing and thawing of permafrost slopes, the surface soil of the slope freezes in the cold season, resulting in uneven frost heave, and the slope begins to melt in the warm season, and the pore water inside the soil cannot be discharged in time and becomes saturated or supersaturated Once the conditions are ripe, spring thaw landslides will occur under the action of its own gravity, which has become one of the important diseases of slope engineering in permafrost regions. With the continuous warming of global tem...

AI Technical Summary

Problems solved by technology

However, when the outside air temperature of this structure is higher than the temperature of the slope body in warm season, the heat exchange cycle of the heat anchor tube almost stops, and the thermal erosion of the slope in warm season is still very serious, which cannot meet the requirements of efficient protection of permafrost slope throughout the year.

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