Analysis of elastoplasticity and rheology due to mining subsidence

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.