COAL ENGINEERING ›› 2018, Vol. 50 ›› Issue (3): 47-49.doi: 10.11799/ce201803012
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Abstract: According to the continued deformation problems of track roadway with broken surrounding rock under the high geostress conditions under 13-1 coal seam in Guqiao Coal mine. Based on site survey, the failure characteristics and the internal structure of surrounding rock were analyzed. Pre-stressed bolting and grouting technology based on bolt and anchor support was provided to repair roadway in this paper. Field experiment shows that the support scheme was effectively to prevent roadway deformation, and good supporting effect was achieved in application.
CLC Number:
TD353
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URL: http://www.coale.com.cn/EN/10.11799/ce201803012
http://www.coale.com.cn/EN/Y2018/V50/I3/47