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A composite full-face tunnel boring machine cutter head system with drilling and blasting assisted rock breaking

A tunnel excavation, full-section technology, applied in the field of composite full-section tunnel boring machine cutter head system, can solve the problems of easy damage to the hob, difficulty in cutting the cutter head, etc. The effect of the cutter head being difficult to excavate

Active Publication Date: 2021-06-08
WUHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of this application is to provide a composite full-face tunnel boring machine cutter head system with drilling and blasting assisted rock breaking, which can make full use of the drilling and blasting function in the rock breaking process to form a free surface to release ground stress and deteriorate rock strength. Improve the rock-breaking efficiency of the hob, reduce power consumption, and solve the problems of difficult excavation of the cutter head and easy damage of the hob

Method used

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  • A composite full-face tunnel boring machine cutter head system with drilling and blasting assisted rock breaking
  • A composite full-face tunnel boring machine cutter head system with drilling and blasting assisted rock breaking
  • A composite full-face tunnel boring machine cutter head system with drilling and blasting assisted rock breaking

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[0032] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0033] Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art w...

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Abstract

The utility model relates to a composite full-section tunnel boring machine cutter head system for drilling and blasting assisted rock breaking, and relates to the field of tunnel construction equipment. The composite full-face tunnel boring machine cutter head system for drilling and blasting assisted rock breaking includes a rotatable cutter head, a mechanical arm, a moving mechanism, a rock drilling device and a charging device. There are multiple hobs on one side of the cutter head. There are multiple reserved holes that can be opened and closed on the cutter head; the mechanical arm is configured to be retractable to pass through the reserved holes; the moving mechanism is used to drive the mechanical arm to move to align with each reserved hole; the rock drilling device is used It is used to drill holes in the rock formation after the mechanical arm passes through the reserved hole; the charge device is used to install explosives into the drill hole after the rock drilling device drills the hole. The drilling and blasting assisted rock breaking composite full-face tunnel boring machine cutter head system provided by this application can make full use of the drilling and blasting function to form the free surface in the rock breaking process to release the ground stress, degrade the rock strength, and improve the rock breaking efficiency of the hob , reduce power consumption, and solve problems such as difficult drilling of the cutter head and easy damage of the hob.

Description

technical field [0001] The present application relates to the field of tunnel construction equipment, in particular to a composite full-section tunnel boring machine cutter head system for drilling and blasting assisted rock breaking. Background technique [0002] In tunnel construction at home and abroad, the shield tunneling method has the advantages of good construction quality, environmental protection, and low cost. It can achieve a high degree of automation and mechanization. It is currently the most efficient tunnel construction method. many. At present, the research on the full-face roadheader mainly focuses on the force of the cutter head and the distribution of the cutters, and has achieved rich results. However, there is still no effective solution to the technical problems of the roadheader in the excavation of high ground stress hard rock areas. [0003] When the roadheader encounters a rock formation with high ground stress and high hardness, it will be more d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/11E21D9/10E21D9/00
CPCE21D9/006E21D9/1006E21D9/104E21D9/11
Inventor 叶阳韩科曾亚武
Owner WUHAN UNIV
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