Quick unfreezing device for freezing method construction of connecting channel and pump station

Abstract

The invention discloses a quick unfreezing device for freezing method construction of a connecting channel and a pump station. The quick unfreezing device for freezing method construction of the connecting channel and the pump station comprises a heater, a brine tank, a first pipeline, a second pipeline and at least one freezing pipe; the two ends of the first pipeline are connected to the brine tank and the freezing pipe respectively and communicate with the interior of the brine tank and the interior of the freezing pipe; the two ends of the second pipeline are connected to the brine tank and the freezing pipe respectively and communicate with the interior of the brine tank and the interior of the freezing pipe; a brine circulation loop is formed among the brine tank, the first pipeline, the freezing pipe and the second pipeline; and the heater is connected to the brine circulation loop and used for heating brine water in the brine circulation loop. The brine water in the brine circulation loop is circularly heated through the heater, and ice in a frozen soil body is rapidly melted, so that the frozen soil body is rapidly unfrozen, and the thaw settlement time is shortened.

Description

technical field [0001] The invention relates to a fast thawing device for the construction of a communication channel and a pump station by freezing method. Background technique [0002] Most of the subway tunnels are located in the bustling areas of the city. There are many buildings and facilities on the ground, and the pipelines in the ground are intricate. The volume will expand during the process, and the volume of the permafrost will decrease during the later thawing process, causing the tunnel and the ground to sink, which will have a certain impact on the tunnel, road pipelines and nearby buildings. After the communication channel and the pumping station structure are completed, if the conventional natural thawing and tracking grouting methods are adopted, it will generally take 4 to 6 months. Due to the long natural thawing time of the frozen wall, it is difficult to guarantee the thawing and grouting of the ground in the later stage, and the drainage and consolida...

AI Technical Summary

Problems solved by technology

Due to the long natural thawing time of the frozen wall, it is difficult to guarantee the thawing and grouting of the ground in the later stage. The drainage and consolidation of the soil will cause a large compaction settlement, which will inevitably cause excessive thawing on the ground surface, causing serious damage to the tunnel and the surrounding environment of the ground. Serious impact

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