Mechanism of Mining-induced Slope Movement for Gullies Overlaying Shallow Coal Seams

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2013 > Vol10 No.3

	Mechanism of Mining-induced Slope Movement for Gullies Overlaying Shallow Coal Seams
	WANG Xu-feng ; ZHANG Dong-sheng ; ZHANG Cheng-guo ; FAN Gang-wei
刊名	Journal of Mountain Science
	2013-06
卷号	10 期号:3 页码:388-397
关键词	Coal mine Shallow coal seam Gully slope Movement mechanism Roof control Mining method
通讯作者	ZHANG Dong-sheng
英文摘要	This paper provides an improved understanding of the movement mechanisms of both bed-rock gully and sandy soil gully when underground mining occurs underneath, followed by systematic analysis of the contributing factors such as mining advance direction, gully slope angle, gully erosion coefficient and mining height. This paper presents the results from monitoring, theoretical analyses and up to date modeling based on the geological features in the gully affected area, and the implications of these results to the success of roof support trial. It was observed that when mining occurred towards the gully, sliding of slope block along the fracture surface occurred, which resulted in unstable roof condition; when mining progressed away from the gully, polygon blocks developed in the gully slope and rotated in reversed direction forming hinged structure; within the bed-rock slope, the hinged structure was unstable due to shear failure of the polygon block; however, within the sandy soil slope, the structure was relatively stable due to the gradual rotating and subsiding of the polygon block. The increase of the value of slope angle and mining height lead to a faster and more intensive fracture development within the gully slope, which had a pronounced effect on gully slope stability and underground pressure. Various remediation approaches are hence proposed in this paper including introducing more powerful support and reasonable mining height, setting up working face along or away from gullies, using room and pillar, strip mining and backfill instead of longwall mining.
收录类别	SCI
语种	英语
公开日期	2013-06-14
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/5391]
专题	成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2013_Vol10 No.3
推荐引用方式 GB/T 7714	WANG Xu-feng,ZHANG Dong-sheng,ZHANG Cheng-guo,et al. Mechanism of Mining-induced Slope Movement for Gullies Overlaying Shallow Coal Seams[J]. Journal of Mountain Science,2013,10(3):388-397.
APA	WANG Xu-feng,ZHANG Dong-sheng,ZHANG Cheng-guo,&FAN Gang-wei.(2013).Mechanism of Mining-induced Slope Movement for Gullies Overlaying Shallow Coal Seams.Journal of Mountain Science,10(3),388-397.
MLA	WANG Xu-feng,et al."Mechanism of Mining-induced Slope Movement for Gullies Overlaying Shallow Coal Seams".Journal of Mountain Science 10.3(2013):388-397.