Permafrost slope sunshading refrigeration anchoring structure and construction method

Abstract

The invention provides a permafrost slope sunshading refrigeration anchoring structure and a construction method. The permafrost slope sunshading refrigeration anchoring structure comprises an anchoring system and a refrigeration system; the anchoring system comprises a frame, a hollow anchor pipe, an anchorage device and a backing plate; the hollow anchor pipe is formed by connecting a thick pipeand a thin pipe, and the anchorage device and the backing plate enables the front end of the anchor pipe to be anchored to the frame, and slurry anchors the rear end of the anchor pipe in a soil body. The refrigeration system includes a solar panel, a refrigeration sheet, a voltage controller, a temperature sensor, a temperature control switch and an unpowered ventilator; the solar panel is fixedto the frame, the refrigeration sheet is arranged in the thick pipe in a sleeved mode and the cold surface of the refrigeration sheet is tightly attached to the pipe wall of the thick pipe, and the unpowered ventilator sleeves the front end of the thick pipe; the temperature control switch controls the operation and disconnection of the refrigeration sheet, when the temperature of the soil body is higher than the working switching temperature of the switch, the stitch closes the refrigeration sheet to absorb heat, and the temperature of the surrounding soil body is reduced. The permafrost slope sunshading refrigeration anchoring structure is simple in structure, high in operability and good in cooling, anchoring and long-term service performance, and provides a new idea for solving the problems of slope freezing and thawing instability and upper limit degradation.

Description

technical field [0001] The invention belongs to the technical field of anchoring engineering in permafrost regions, and in particular relates to a permafrost slope shading refrigeration anchoring structure and a construction method. Background technique [0002] Frozen soil is a special rock and soil mass gradually formed by the exchange of air-to-air energy in a specific climate region. It usually contains subsurface ice. Its properties change greatly with the change of temperature and various phases of water. . With the continuous expansion of construction scale in permafrost areas, a large number of new slopes will appear. Under the combined action of human engineering construction and global warming, the original relative energy balance in the frozen soil has been destroyed, aggravating the temperature rise or thawing of the frozen soil, the upper limit of the permafrost has been degraded or even gradually disappeared, and the strength of the frozen soil has been reduce...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of thermal thawing slump induced by freezing and thawing in permafrost slopes, upper limit degradation and poor freezing and thawing effect of existing anchoring

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