Multi-spiral self-driven walking type tunneling device and method

Abstract

The invention discloses a multi-spiral self-driven walking type tunneling device and a method, belonging to the field of the construction of trenchless underground tunnels or pipelines. The device is formed by sequentially connecting more than one cylinder body; pairs of spiral propulsion units are arranged in the circumferential direction of the cylinder body used as a drive node; the spiral propulsion unit consists of a cylinder body or a rod body or a stick body and screw threads wrapped in the circumferential direction of the cylinder body or the rod body or the stick body, wherein the cylinder body or the rod body or the stick body is used as a rotating shaft and the cross section of the cylinder body or the rod body or the stick body is cylindrical or polygonal; and the axial line of the spiral propulsion unit is parallel with the axial line of the cylinder body. Through the rotation of the plurality of extended spiral propulsion units in the circumferential direction in the rock soil on the outer side of the tunneling device, the tunneling device is self-driven to move ahead without a counter force provided by background man-made structures under the axial counter force of the rock soil on the rotating screw threads of the spiral propulsion units. Through the tunneling technology and the device, a novel tunneling technology and the novel tunneling device with self-advancing and turning functions are provided for the construction technology of underground tunnels so as to provide technical support for more adequate exploitation and use of underground space.

Description

technical field [0001] The invention relates to a self-driven walking tunnel excavation device and method in underground rock and soil by using a plurality of barrel-type or rod-type screw propulsion devices arranged on the outside of the tunnel excavation device to promote and cooperate with the excavation in front of the excavation device. Dig underground tunnels or pipes in construction field. Background technique [0002] At present, the construction of underground engineering will encounter a large number of problems in the construction of tunnels between ground building foundations or underground buildings or structures. Currently widely used trenchless construction technologies, such as shield tunneling and pipe jacking, are difficult to meet the construction requirements of underground space due to their long distance and flexible turning and passing ability. The construction of urban underground pipe network and the development of underground space are greatly rest...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problem that existing excavation devices have to exert reaction pressure on the artificial structures behind the excavation devices during the soil construction process, the present invention proposes a multi-helix self-driven walking tunnel excavation device and method

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