Analysis of elastoplasticity and rheology due to mining subsidence  

作　　者：WU Xiong WANG XiaoGang DUAN QingWei JIA ZhiXin XU NengXiong SUN YanDong 

机构地区：[1]School of Water Resources and Environment,China University of Geosciences,Beijing 100083,China [2]China Institute of Water Resources and Hydropower Research,Beijing 100044,China

出　　处：《Science China Earth Sciences》2008年第6期826-836,共11页中国科学（地球科学英文版）

基　　金：Technology Innovation Fund of the Ministry of Water Resources (Grant No. Scxc2005-11)

摘　　要：At present, as the easily mining resources are being increasingly depleted, the exploitation of coal under buildings, water-bodies and railways is imminent for the sustainable production. Probability in-tegral method is a general method for mining subsidence in the coal system. Because of poor under-standing of mining subsidence for other sections, the authors suggest probability integral method for the study of coal mining under buildings, water-bodies and railways. Moreover, the calculation result of probability integral method should be corrected by numerical simulation method. Based on practical projects, the impact has been evaluated on the security of Xifeihe left embankment under coal mining. Combining with the results of probability integral method, we propose that the 600 m far from em-bankment is a good rationality. This article provides the basis for the rational exploitation of coal re-source which is a major practical problem under the premise of Water Infrastructure Security. Fur-thermore, it also can be served as a reference for the similar projects, such as mining Xiaolangdi res-ervoir area, mining Yuecheng reservoir and mining the major channels of Middle Route South to North Water Transfer.At present, as the easily mining resources are being increasingly depleted, the exploitation of coal under buildings, water-bodies and railways is imminent for the sustainable production. Probability integral method is a general method for mining subsidence in the coal system. Because of poor understanding of mining subsidence for other sections, the authors suggest probability integral method for the study of coal mining under buildings, water-bodies and railways. Moreover, the calculation result of probability integral method should be corrected by numerical simulation method. Based on practical projects, the impact has been evaluated on the security of Xifeihe left embankment under coal mining. Combining with the results of probability integral method, we propose that the 600 m far from embankment is a good rationality. This article provides the basis for the rational exploitation of coal resource which is a major practical problem under the premise of Water Infrastructure Security. Furthermore, it also can be served as a reference for the similar projects, such as mining Xiaolangdi reservoir area, mining Yuecheng reservoir and mining the major channels of Middle Route South to North Water Transfer.

关 键 词：MINING SUBSIDENCE numerical simulation the elastoplasticity MODEL RHEOLOGICAL MODEL the evaluation of EMBANKMENT safety 

分 类 号：P613[天文地球—矿床学]