【摘要】 陷落柱是由于下伏可溶性碳酸盐岩地层强烈溶蚀成较大空间后,在各种因素作用下,空洞引起上覆岩层应力重分布,当其应力超过岩层强度极限时,上部岩层向溶蚀空间陷落而成的筒状柱体。这一继生地质现象在我国分布广、规模大,现象本身及其对生产建设的影响颇具独特性。更多还原

【Abstract】 Collapse-columns are columnar bodies collapsed from the overlying strata into the corroded hollow space in soluble carbonate rock forma tions under the action of various factors inducing the redistribution of stress in the overlying beds and finally leading to collapse when the stress exceeds the limit of the strength of the overlying strata.This kind of geologial phenomenon is widely spread in China, and has its own pecularities in the phenomenon itself and the impact on mine production.The authors made a discussion on geohydrological environment Providing the conditions for collapse-columns and groundwater transmission on the basis of relevant data available in Henan, Hebei, Shanxi and Jiangsu provinces, and came to a conclusion that mines near discharge areas of karst springs underlain by zones of strong groundwater flow tend to be subjected to outburst of water through collapse-columns. The conclusion is very helpful to prediction, exploration and Prevention of water outburst through collapse-columns.更多还原