Analysis of elastoplasticity and rheology due to mining subsidence

作者：Wu Xiong^*; Wang XiaoGang; Duan QingWei; Jia ZhiXin; Xu NengXiong; Sun YanDong

来源：Science in China - Series D: Earth Sciences , 2008, 51(6): 826-836.

DOI：10.1007/s11430-008-0060-1

• mining subsidence
• numerical simulation
• the elastoplasticity model
• rheological model
• the evaluation of embankment safety

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.

• 出版日期2008-6
• 单位中国水利水电科学研究院; 中国地质大学（北京）