二维地震勘探在盐矿塌陷预测中的应用

The Application of 2D Seismic Exploration to the Salt Mine Collapse Prediction

水溶开采诱发地表塌陷是盐矿开采中常见的地质灾害现象。为了有效地预防地面塌陷而引起的安全事故和环境灾害的发生,必须查明塌陷原因,对可能的塌陷范围进行提前预警。因此,在盐矿开采区开展了系统性的二维地震勘查,在圈定的异常区发生地面塌陷,直接证明了地震勘探成果的准确性。从2012年1月1日预测到塌陷隐患至2012年4月12日塌陷发生,地震勘探预报塌陷整整提前了102天。因此,二维地震勘探可以准确地预测采卤溶腔的安全性,这为盐矿矿山企业的开采设计提供了依据。

Surface collapse induced by solution mining is common geological disaster in salt mining.In order to effectively prevent the occurrence of accidents and environmental disasters caused by surface collapse,the reasons for the collapse should be identified and the possible collapse area should be warned in advance.In this paper,2D seismic exploration in the salt mining area is applied.That the surface collapse happened in the delineated abnormal area is direct evidence of the accuracy of seismic exploration results.The collapse was forecasted in January 1,2012 and happened in April 12,2012,so seismic exploration forecast is 102 days in advance of the collapse.Therefore,the 2D seismic exploration can accurately predict the safety of brine cavern,which provides the basis for the mining design of salt mining enterprises.