西南山地区采煤塌陷地破坏水田土壤水分特征分析  

Soil Water Characteristic Analysis of Rice Field Destroyed by Coal Mining in South-west Mountain Area

作　　者：李晓静[1] 胡振琪[1] 张国强[1] 王方[1] 高明杰[1] 彭猛 

机构地区：[1]中国矿业大学(北京)地球科学与测绘工程学院,北京100083

出　　处：《煤矿开采》2011年第6期48-50,共3页Coal Mining Technology

基　　金：国土资源部公益性行业科研专项资助项目(200911015-04)

摘　　要：以现场和室内试验为手段,研究了西南山地区采煤塌陷地土壤的含水量和土壤渗透率。研究结果表明:塌陷地破坏水田的含水量较高,且较为均匀。塌陷地破坏水田的渗透规律为直线型,部分点渗透率远大于正常水平,推测为采煤塌陷造成地表裂缝导致。经过采后长期稳定,土壤裂隙弥合,破坏水田的土壤环境相对稳定。通过分析,可以看出采煤塌陷地破坏水田目前的土壤性质已经稳定,通过引进土壤重构的方法,可恢复水田生产。This paper researched soil water content and its permeability in mining subsidence land in south-west mountain area by on the-spot test and indoor experiment. Results showed that water content of rice field in mining subsidence land was higher and evener. Soil permeable rule was linear and part points permeability were much larger than natural level which might result from surface cracks induced by mining subsidence. After long-time stability, soil cracks closed and soil environment in the rice filed became stable. Then, soil restructure might be used in r^t~ovor rlt~ G^IA

关 键 词：采煤塌陷 水田 土壤含水量 土壤渗透率 

分 类 号：TD88[矿业工程—矿山开采]