干旱区生态环境知识资源中心(Arid): 半干旱矿区地裂缝对土壤水分和地表剪切强度的影响

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	半干旱矿区地裂缝对土壤水分和地表剪切强度的影响
其他题名	Impacts of Cracks on Soil Moisture and Surface Shear Strength in Semi-Arid Mining Area
	杜国强; 陈秀琴; 郄晨龙; 杨德军
来源期刊	生态与农村环境学报
ISSN	1673-4831
出版年	2016
卷号	32 期号:2 页码:224-228
中文摘要	为研究矿区地裂缝对土壤水分及地表剪切强度的影响规律,针对井工煤矿采煤产生的沉陷裂缝,通过野外现场试验,对垂直裂缝方向上的土壤含水率和地表剪切强度进行测定并进行相关性分析。结果表明,在沿垂直裂缝的方向上土壤含水率与测点距裂缝的距离之间呈一定的正相关关系,相关性未达显著水平(P>0.05),初步得到土壤平均含水率随距地裂缝距离的增加而增大,地裂缝的出现一定程度上降低了裂缝及其周边土体含水率;地表剪切强度与距地裂缝距离之间呈一定的正相关关系,相关性未达显著水平(P>0.05),初步得到地裂缝对周围土体结构产生一定影响,即距地裂缝越近,剪切强度越低,地裂缝的出现降低了地裂缝及其周边土体的剪切强度。
英文摘要	To study impacts of cracks on soil moisture and surface shear strength in mining areas, especially cracks caused by mining-triggered subsidence, a field experiment was carried out determining changes in soil moisture content and surface shear strength along the direction perpendicular to a crack for correlation analysis. Results show that along the direction perpendicular to a crack, soil moisture was somewhat positively related to distance from the measurement point to the crack, though the correlation was not significant(P>0.05). It was found that the average soil moisture content increased with the distance from the measurement point to the crack. The appearance of cracks reduced soil moisture content in the cracks and their surroundings, to some extent. Surface shear strength was also positively related to the distance from the measurement point to the crack, though the correlation was not significant either (P>0.05). It was also found that land cracks had some impacts on soil structure of their surroundings, that is, the closer to the cracks, the lower the shear strength, which demonstrates that land cracks reduce the shear strength of the soil around them.
中文关键词	地裂缝 ; 土壤含水率 ; 地表剪切强度 ; 半干旱矿区
英文关键词	crack soil moisture content surface shear strength semi-arid mining area
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5683591
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234878
作者单位	(徐州)中国矿业大学环境与测绘学院, 徐州, 江苏 221116, 中国
推荐引用方式 GB/T 7714	杜国强,陈秀琴,郄晨龙,等. 半干旱矿区地裂缝对土壤水分和地表剪切强度的影响[J],2016,32(2):224-228.
APA	杜国强,陈秀琴,郄晨龙,&杨德军.(2016).半干旱矿区地裂缝对土壤水分和地表剪切强度的影响.生态与农村环境学报,32(2),224-228.
MLA	杜国强,et al."半干旱矿区地裂缝对土壤水分和地表剪切强度的影响".生态与农村环境学报 32.2(2016):224-228.