Freezing pipe of inclined shaft under rapid tunneling condition of roadheader and arrangement method of freezing pipe

Abstract

The invention discloses a freezing pipe of an inclined shaft under the rapid tunneling condition of a roadheader and an arrangement method of the freezing pipe, and relates to the technical field of mine construction. A first freezing assembly comprises a first pipe body and a second pipe body, one end of the first pipe body is arranged in the second pipe body, the other end of the first pipe body is arranged outside the second pipe body, the first pipe body is provided with a first opening, the second pipe body is provided with a first closed cavity and a second closed cavity, the first closed cavity is provided with a second opening, and the second closed cavity is provided with a third opening; a second freezing assembly comprises a third pipe body and a fourth pipe body, one end of the third pipe body is arranged in the fourth pipe body, the other end of the third pipe body is arranged outside the fourth pipe body, the third pipe body is provided with a fourth opening, the fourth pipe body is provided with a third closed cavity, a fifth opening is formed in the third closed cavity, and a thermal insulation material is arranged in the third closed cavity. Therefore, the problems of low construction efficiency and potential safety hazards in an inclined shaft digging and building task in the prior art are solved.

Description

technical field [0001] The invention relates to the technical field of mine construction, and more specifically relates to a frozen pipe for an inclined shaft under the condition of rapid excavation by a fully mechanized excavator and an arrangement method thereof. Background technique [0002] In the process of coal mining, most of the mines with shallow topsoil depth and small coal seam burial depth adopt the inclined shaft development method. However, when the shaft of the inclined shaft passes through the water-bearing or unstable topsoil, it causes great difficulties in the excavation process of the inclined shaft, which makes it difficult for the excavation work to pass smoothly on schedule. [0003] At present, most of the traditional construction methods are constructed by rotary jetting or grouting. The excavation is carried out manually with small excavators. The excavation speed is less than 35 meters per month, and the well completion speed is slow. The overall c...

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Problems solved by technology

[0005] The purpose of the present invention is to provide the frozen pipe and its arrangement method for the inclined shaft under the condition of rapid excavation by fully mechanized excavator, so as to solve the technical problems of low construction efficiency and potential safety hazards in the prior art in the task of digging and laying the inclined shaft

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