Affiliation:
1. Shandong University of Science and Technology
Abstract
The roof side broken brings serious security risks in the construction in coal mine. The geological structure of faults and folds that encountered in coal mine and the affect of abutment pressure in the goaf creat roof side broken. If in the way of reinforced support to control the surrounding rock, it is difficult to achieve the expected security. Especially if the roof side broken appears in the mining gateway, controlling the surrounding rock by the way of reinforced support causes waste of materials and the supporting effect is limited. So, combined with the distribution of abutment pressure of the surrounding rock in broken roadway, starting from the nature change of the surrounding rock, through injection of Malisan to change the broken condition of surrounding rock, the broken roadway is effectively.under control.
Publisher
Trans Tech Publications, Ltd.
Reference3 articles.
1. Song Zhen-qi, Jiang Yu-jing, Yang Zeng-fu, et al. Study on the Basic Information of Stratum Movement and Mechanics on Predicting and Controlling Heavy Accidents in Coal Mine[M]. Beijing: Coal Industry Press, 2003: 13-14. (In Chinese).
2. Zhang DS, Miao XX. Journal of China University of Mining Technology, 2003, 32(03): 232~235.
3. Litwiniszyn J. Int J Rock Mech Min Sci Geomech A bstr, 1985, 22(1): 39-46.
Cited by
1 articles.
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