Risk Evaluation of Water Disaster from Paleo-sinkholes
Paleo-sinkholes can be classified as three types as follow in term of substance features of fillings, degree of compaction and consolidation, permeability, and so on. Most of them are dryness and water barrier, those at modern Karstic runoff or discharge zones and under water table have potential risk of water inrush. The permeability of paleo-sinkholes the numerical modeling are used to evaluate risk of water inrush from paleo-sinkholes. Risk evaluation by numerical modeling shows that water inrush may occur from them under mining condition even for non-permeable paleo-sinkholes originally. So, if there is not water prevention work, it is necessary to set up water barrier pillars for paleo-sinkholes.
risk evaluation water inrush paleo-sinkholes numerical modeling.
ZHANG Bin YIN Shang-xian
Safety Engineering Department, Hebei Jinniu Energy Group Co.,LMT, Xingtai 054000, China Mine Water Prevention and Control Institute, North China Institute of Science and Technology, Yanjia
国际会议
The 2007 International Symposium on Safety Science and Technology(2007采矿科学与安全技术国际学术会议)
河南焦作
英文
19-23
2007-04-17（万方平台首次上网日期，不代表论文的发表时间）