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

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...

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

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