An advanced laser drilling machine mounted on a tbm and its working method

A laser and drilling rig technology, applied in the field of advanced exploration, can solve the problems that the effect cannot meet the ideal expectation, and achieve the effect of increasing the rock breaking efficiency, high hole quality and low reliability

Active Publication Date: 2021-12-28
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Removing the molten matter on the hole wall can prevent the magma from sealing the existing cracks and causing groundwater misjudgment, and on the other hand, expose the original minerals of the rock, laying a foundation for exploring lithology and structure; the depth of the rock hole is consistent The regular hole shape provides conditions for scanning, camera and other equipment to enter and exit the borehole smoothly; however, in the existing technology, laser horizontal drilling and TBM cannot be effectively combined, resulting in the effect of advanced drilling not reaching ideal expectations

Method used

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  • An advanced laser drilling machine mounted on a tbm and its working method
  • An advanced laser drilling machine mounted on a tbm and its working method
  • An advanced laser drilling machine mounted on a tbm and its working method

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Effect test

Embodiment 1

[0067] Such as Figure 1-Figure 7 As shown, Embodiment 1 of the present disclosure provides an advanced laser drilling machine mounted on a TBM, including a laser drill bit 1, a laser drill rod 2, a drilling machine main body mechanism 3, a laser generating mechanism 5, a laser optical fiber 51, a multifunctional joint 37 and Slag removal device.

[0068] The laser generating mechanism 5 provides a laser source, and the laser light is delivered to the laser drill bit 12 through the laser fiber 51 through the laser drill rod 2 for release. The laser drill rod 2 continues to follow up to realize continuous and fast drilling. The water pump 6 provides a certain pressure fluid through the fluid pipeline 61 to flush out the cuttings in the drill hole and cool the laser drill bit.

[0069] The laser drill bit 1 includes a laser emitting terminal 121, a slag discharge fluid port 122, a mechanical hole cleaning drill bit 11 and a drilling tool connection part. The laser emitting term...

Embodiment 2

[0091] Embodiment 2 of the present disclosure provides a full-face hard rock tunnel boring machine, including the laser drilling machine provided in Embodiment 1. Specifically for the current TBM structure and construction characteristics, the laser drilling machine adopts the following loading scheme and usage method:

[0092] The main mechanism of the drilling rig is installed on the TBM main beam 72 on the rear side of the TBM cutter head drive 73, where there is a certain amount of available space, and it is the closest applicable area to the face 8; the main mechanism of the drilling rig 3 is installed here , The number of external auxiliary drill pipes required for drilling in the advance drilling process is the least, which is conducive to the rapid preparation of drilling and the recovery of drill pipes.

[0093] Open holes on the TBM main beam 72 between the face and the main body of the drilling rig, and correspondingly open holes on the TBM cutter head 71 as the work...

Embodiment 3

[0098] Embodiment 3 of the present disclosure provides a working method of the laser drilling machine described in Embodiment 1, using the full-section hard rock tunnel boring machine provided in Embodiment 1, including the following steps:

[0099] The TBM rotates the cutterhead 71 to a designated position, so that the opening on the cutterhead matches the work of the laser drill 2;

[0100] Install the laser drill rod 2 and the laser drill bit 1 between the face 8 and the main body mechanism 3 of the drilling rig;

[0101] The generated slag discharge fluid is ejected from the slag discharge fluid port 122, and the generated laser is released from the laser emission terminal 121

[0102] The laser drill rod 2 is continuously advanced to perform laser drilling, and at the same time, the outer drill rod drives the mechanical hole cleaning drill bit 11 to remove the molten material on the hole wall, exposing the original rock and cracks;

[0103] When a drilling construction s...

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Abstract

The present disclosure provides an advanced laser drilling machine mounted on a TBM and a working method, at least including a laser drill, a hole clearing drill, connecting parts and a laser drill; the laser drill includes a slag discharge fluid port and a laser emission terminal, and the connecting parts include a The inner cylinder and the outer cylinder sleeved by the first bearing; the laser drill rod includes the inner drill rod and the outer drill rod sleeved by the second bearing; the laser generating device passes through the inner drill rod and the inner cylinder through at least one continuous laser optical fiber After connecting with the laser emission terminal, the slag discharge fluid supply port communicates with the slag discharge fluid port through the continuous space of the inner drill pipe and the inner cylinder; this disclosure solves the problem of horizontal rapid drilling of the rock mass in front of the TBM drill It provides a fast and effective survey method for revealing the lithology, structure, groundwater, weak interlayer and other geological bodies and their properties in front of the tunnel face.

Description

technical field [0001] The present disclosure relates to the technical field of advanced exploration, in particular to an advanced laser drilling machine mounted on a TBM and a working method. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] At present, the rock tunnel boring machine (TBM, Tunnel Boring Machine) has been widely used in tunnel projects such as water conservancy and hydropower, railway highways, and municipal engineering. The geological conditions of tunnel engineering are extremely complex. TBM construction often encounters unfavorable geological conditions such as water and mud inrush, fault fracture zones, etc. To ensure construction safety and efficiency, it is very important to accurately survey the geology in front of the tunnel face. [0004] At present, advanced exploration is mainly divided into two categories: ge...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/10E21D9/11E21D9/12E21B10/00E21B7/15E21B17/04E21B17/00
CPCE21D9/1073E21D9/11E21D9/12E21B10/00E21B7/15E21B17/04E21B17/00
Inventor 刘斌胡蒙蒙李彪陈磊张波
Owner SHANDONG UNIV
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