Shading and refrigeration anchorage structure and construction method of permafrost slope

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 sunshade refrigeration anchorage structure and a construction method. Background technique [0002] Permafrost is a special rock-soil body gradually formed by the exchange of earth-air energy in a specific climate region, usually containing underground ice, its properties change greatly with temperature and water in various phases, and it has a significant dependence on temperature and thermal instability . As the scale of engineering construction in permafrost regions continues to expand, a large number of new slopes will appear. Under the joint effect of human engineering construction and global warming, the original relative energy balance in permafrost is destroyed, which intensifies the temperature rise or thawing of permafrost, the upper limit of permafrost continues to degrade or even gradually disappears,...

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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 technology, and to provide a system with power generation, sunshade, active cooling, anchoring and environmental protection. Energy-saving sun-shading and cooling anchorage structure and construction method for permafrost slopes

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