大采高碎裂煤巷软弱围岩控制优化研究

doi:10.16285/j.rsm.2016.S2.074

›› 2016, Vol. 37 ›› Issue (S2): 589-596.doi: 10.16285/j.rsm.2016.S2.074

• Geotechnical Engineering • Previous Articles Next Articles

Optimization research on weak rock control in coal roadway of large mining height

ZHAO Ming¹, HUANG Kan¹, LIN Jia², ZHANG Peng¹, ZHAO Jian¹, CHEN Lei¹, GE Yong-yong³

1. School of Resources and Safety Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China; 2. China Coal Xi 'an Design Engineering Co., Ltd., Xi′an, Shannxi 710054, China; 3. National Natural Science Foundation of China, Beijing 100085, China

Received:2016-03-14 Online:2016-11-11 Published:2018-06-09
Supported by:
This work was supported by Specialized Research Fund for the Doctoral Program of Higher Education (20120023110023) and the Fundamental Research Funds for the Central Universities (2014QZ03).

Abstract

Abstract: To solve the problems about the technology and economic rationality of the surrounding rock control in the air-return gate of 1232(3) face in Xieqiao coal mine, it is concluded that bolt diameter and row spacing are the main sensitive factors that affect the surrounding rock control results of the air-return gate by using orthogonal experiment method to analyze the experiment data of different factors in different levels with the roadway’s sides and roof-to-floor convergence as indexes. Meanwhile, two locally optimization schemes are obtained by analyzing the key factors that affect the surrounding rock control results after taking the techno-economic indicators into consideration. The final optimization scheme is reached by comprehensive analysis and decision-making of the two schemes according to the method of grey correlation analysis. The actual application shows that the deformation of surrounding rock of roadway is controlled effectively and the techno-economic benefit is remarkable after the optimization of the support parameters.

Key words: anchor bolt / anchor cable, surrounding rock control, optimization, grey correlation analysis

CLC Number:

TD 353

ZHAO Ming , HUANG Kan , LIN Jia , ZHANG Peng , ZHAO Jian , CHEN Lei , GE Yong-yong,. Optimization research on weak rock control in coal roadway of large mining height[J]., 2016, 37(S2): 589-596.

References

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