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Self-feeding continual tunneling device and method for rock tunnel

A self-propelled, rock-based technology, applied in tunnels, earthwork drilling, mining equipment, etc., can solve the problems of deteriorating engineering economic and social benefits, affecting the tunnel construction period, reducing the utilization rate of tunneling devices, etc.

Active Publication Date: 2015-01-07
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the utilization rate of the tunneling device is reduced, the construction period of the tunnel is affected, and the economic and social benefits of the project are deteriorated
[0003] In addition, the existing rock tunnel boring device adopts the method of tightening the support shoes to the tunnel wall to generate frictional force to provide the counter force for the forward movement of the tunneling device, which has high requirements on the rock properties of the tunnel wall and the numerical rationality of the tensioning force. , which restricts the application range of the tunneling device and the effectiveness of the tunneling device's forward construction
The tightening and release of the boots around the hole also disturbs the surrounding rock mass, affecting the stability of the surrounding sensitive rock mass

Method used

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  • Self-feeding continual tunneling device and method for rock tunnel
  • Self-feeding continual tunneling device and method for rock tunnel
  • Self-feeding continual tunneling device and method for rock tunnel

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] like figure 1 Shown: a kind of self-propelled rock tunnel continuous excavation device, it comprises advance drilling drill rod 5, is installed in the advance drilling drill bit 2 of advance drilling drill rod 5 front ends, is sleeved on the advance drilling drill rod 5 The rock tapping drill bit 6 behind the advanced drilling bit 2, the spiral tube 11 behind the rock tapping drill bit 6 set on the advanced drilling drill rod 5, and the end of the spiral tube fixedly connected with the outer cylinder body 19 of the excavation device The thrust plate 16 and the other end of the advance hole drill rod 5 are installed inside the outer cylinder body 19 of the tunneling device, and under the action of the drill rod driving torque 15, the advance drill hole 3 is drilled.

[0020] The non-spiral part of the helical tube 11 rear portion is cove...

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PUM

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Abstract

The invention discloses a self-feeding continual tunneling device and method for a rock tunnel, belonging to the construction field of underground excavating rock tunnels or pipelines. According to the invention, the method comprises the following steps of: firstly, drilling an advance borehole in a rock in front of the tunneling device; secondly, screwing in a tapping bit to the formed rock borehole to form inner threads of the rock; and finally, screwing in a helical tube to the threads of the rock, wherein the helical tube pulls the rear tunneling device which is connected with the helical tube by a thrust bearing to move forwards while screwing in to the threads, so that the tunneling device continually tunnels to achieve the continual tunneling of the rock tunnel while being cut by a cutter head in front of the tunneling device of the rock tunnel.

Description

technical field [0001] The invention relates to a rock tunnel excavation method, which adopts the method of firstly drilling an advanced drilling hole in the rock and soil body, then tapping the rock in the advanced drilling hole to form a spiral pattern, and then using a screw rod or a spiral tube to screw in along the spiral pattern. , so as to drive the cutter head at the rear end of the screw rod or helical tube to cut and ream the hole to form the tunneling device and tunneling method of the rock tunnel, which provides a new type of tunneling device and tunneling device that can continuously move forward in the rock for the underground tunnel construction technology. The method provides technical support for more fully developing and utilizing the underground space, and belongs to the construction field of excavating rock tunnels or pipelines underground. Background technique [0002] At present, the rock tunnel boring device (TBM-Tunnel Boring Method) used in the const...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/08
Inventor 卢清国
Owner BEIJING UNIV OF TECH
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