Muncy, Geissler, Olds & Lowe, P.C.
Rapid construction method of pipe jacking for underground rescue tunnel with large section
A rapid construction method of pipe jacking for underground rescue tunnel with large section is disclosed. The present invention realizes rock breaking through the cutting head of a roadheader cutting unit, and pushes pipe jacking forward through a pushing thruster. During the process, a protecting bush fixedly connected with a stretchable part is adopted for circumferential support; and since the cutting head and the protecting bush occupy the rock breaking space, and the pushing thruster pushes pipe jacking forward to push the coal rock in the annular space to the circumferential direction, the effect of moving forward without slag discharge can be achieved. The present invention can establish a rescue tunnel quickly and effectively, which saves rescue time and greatly reduces the threat to the life safety of trapped people. The present invention can establish a fast and safe underground rescue tunnel with large section for the rescue of people.
DALIAN UNIVERSITY OF TECHNOLOGY
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E21D E21D E21F E21D
inventional inventional inventional inventional
Jiangtao Zhenggang Shuai Juan Deyue
Bi Guo Lv Wang Yu