On-line surrounding rock strength identification method of hard rock heading equipment

An identification method and surrounding rock technology, which is applied in the field of automatic control of tunnel excavation, can solve the problems that the setting of auxiliary construction parameters does not make much sense, it is difficult to control geological adaptability, and it takes too long

Active Publication Date: 2017-01-11
ZHEJIANG UNIV
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Problems solved by technology

Construction personnel can predict the condition of the surrounding rock based on the test results, but this method of surrounding rock strength d

Method used

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  • On-line surrounding rock strength identification method of hard rock heading equipment
  • On-line surrounding rock strength identification method of hard rock heading equipment
  • On-line surrounding rock strength identification method of hard rock heading equipment

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Embodiment Construction

[0082] The present invention will be described in detail below according to the accompanying drawings, and the purpose and effect of the present invention will be more obvious.

[0083] The invention includes: pressure and speed sensing information of each propulsion hydraulic cylinder, torque and rotational speed sensing information of each main drive motor, hob cutting surrounding rock model, and surrounding rock strength identification technology. In the host computer monitoring system, the surrounding rock strength identification technology can realize the online analysis of the surrounding rock strength based on the surrounding rock cutting model and the least squares algorithm according to the real-time change of the pressure of the propulsion hydraulic cylinder and the real-time information of the torque of the main drive system. identify.

[0084] Such as figure 1 As shown, the online identification method of surrounding rock strength proposed by the present invention...

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Abstract

The invention discloses an on-line surrounding rock strength identification method of hard rock heading equipment. The strength of surrounding rock of the heading face is identified through an existing surrounding rock cutting model according to sensing information of the heading equipment. According to the method, the problems that the method for detecting the rock strength through surrounding rock sampling is high in cost and poor in real-time performance are solved, and the strength of the surrounding rock can be identified in real time according to the sensing information of the heading machine; the problem that in the actual construction process, constructors highly depend on individual experience to judge the strength condition of the surrounding rock is effectively processed, dependency of the constructors on experience can be reduced, and then it is guaranteed that construction is safer, more reliable and more efficient; signals are processed by adopting an interative least square method, the calculation amount is decreased, the identification precision is improved, and real-time identification on the strength of the surrounding rock of the heading face of the heading equipment is promoted.

Description

technical field [0001] The invention belongs to the technical field of automatic control of tunnel excavation, and relates to an online identification method for surrounding rock strength of hard rock excavation equipment. Background technique [0002] Hard rock excavation equipment is a technology-intensive major engineering equipment used for underground tunnel excavation. It has the advantages of fast excavation speed, high quality, low labor intensity, high safety, and small impact on surface settlement and environment. [0003] During the tunneling process of the hard rock roadheader, the hardness of the surrounding rock has an important influence on the tunneling performance. The environment with high hardness and complex and changeable surrounding rock will make the construction environment faced by the surrounding rock tunnel boring machine extremely complicated. The strength of the surrounding rock is an important index reflecting the geological condition of the su...

Claims

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Application Information

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IPC IPC(8): E21D9/00G01N3/24
CPCE21D9/003G01N3/24
Inventor 姚斌廖建峰朱笑丛陈正刘兴宜崔晓峰
Owner ZHEJIANG UNIV
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