Hazard development mechanism and deformation estimation of water solution mining area

来源期刊：中南大学学报(英文版)2006年第6期

论文作者：贺跃光 李志伟 杨小礼

文章页码：738 - 742

Key words：water solution mining；hazard；ground surface deformation and movement;probability integral method

Abstract: Based on the hazard development mechanism,a water solution area is closely related to the supporting effect of pressure-bearing water,the relaxing and collapsing effect of orebody interlayer,the collapsing effect of thawless material in orebody,filling effect caused by cubical expansibility of hydrate crystallization and uplifting effect of hard rock layer over cranny belt.The movement and deformation of ground surface caused by underground water solution mining is believed to be much weaker than that caused by well lane mining,which can be predicted by the stochastic medium theory method.On the basis of analysis on the engineering practice of water solution mining,its corresponding parameters can be obtained from the in-site data of the belt water and sand filling mining in engineering analog approach.