干旱区生态环境知识资源中心(Arid): Comparison of the disturbance of soil physical quality indices between different underground mining stages in semi-arid regions of Western China

Arid

DOI	10.1007/s12665-022-10486-7
	Comparison of the disturbance of soil physical quality indices between different underground mining stages in semi-arid regions of Western China
	Yang, Dejun; Bian, Zhengfu
通讯作者	Yang, DJ
来源期刊	ENVIRONMENTAL EARTH SCIENCES
ISSN	1866-6280
EISSN	1866-6299
出版年	2022
卷号	81 期号:13
英文摘要	Based on soil sampling, lab experiment and support resistance monitoring, the disturbance of soil physical quality indices between different underground mining stages of No 52303 working face was studied in semi-arid region of western China. Soil sampling was conducted in same locations before and after mining in 2014. This study proved that soil water content, soil cohesion and soil porosity were greatly decreased, while bulk density and dry density were increased by coal mining. In comparison, coal mining had slight effect on organic matter, internal fraction angle, and D1 and D2 percent. Underground pressure monitoring showed that P1 during stage 2 was significantly greater than that during stage 1, indicating the large difference of pressure characteristics in tail areas of working face between two stages. Both soil water content and soil cohesion were decreased during two stages in two sites. Soil cohesion was strongly correlated to soil water content, and D1 and D2 percent in 2013 and 2014. Coal mining subsidence increased the cumulative probability to reach the same value of soil water content and soil cohesion. The cover depth produced different elastic and plastic zone widths between sites by theoretical model calculation, consistent with the support resistances in tail areas of working face. Higher pressure might cause a more serious destructive rock-soil body and a larger groundwater level decrease. The dryer and more serious erosive soil column induced by coal mining is a non negligible matter for the semi-arid region.
英文关键词	Cumulative probability Support resistance Soil cohesion Soil physical quality Soil water content Underground mining
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000819016600002
WOS关键词	ENZYME-ACTIVITIES ; SHEAR-STRENGTH ; LOESS PLATEAU ; LAND-USE ; COAL ; RECLAMATION ; SUBSIDENCE ; AREA ; MECHANISM ; DENSITY
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392450
推荐引用方式 GB/T 7714	Yang, Dejun,Bian, Zhengfu. Comparison of the disturbance of soil physical quality indices between different underground mining stages in semi-arid regions of Western China[J],2022,81(13).
APA	Yang, Dejun,&Bian, Zhengfu.(2022).Comparison of the disturbance of soil physical quality indices between different underground mining stages in semi-arid regions of Western China.ENVIRONMENTAL EARTH SCIENCES,81(13).
MLA	Yang, Dejun,et al."Comparison of the disturbance of soil physical quality indices between different underground mining stages in semi-arid regions of Western China".ENVIRONMENTAL EARTH SCIENCES 81.13(2022).