摘要
为探讨综合物探方法在石膏矿采空区探测应用的适宜性和局限性,本文以荆门市石膏矿采空区为研究对象,选用高密度电法、激电中梯法以及地震映射法等综合物探方法开展石膏矿采空区探测工作,辅以钻探工作加以验证,对以上三种物探方法在石膏矿采空区探测的适用性和优缺点进行了对比分析.分析结果表明:高密度电法高效便捷,但其精度有限,可以用于圈定采空区的大致分布和范围;激电中梯法能简单直观地查明采空区充水现状,其勘查结果对石膏矿采空区稳定性分析及发展趋势预测十分重要;地震映射法精度高,探测效果好,可用于石膏矿采空区治理靶区的详细勘查,但其工作效率低,且无法查清采空区的充水特征.综上可知,在石膏矿采空区勘查实际应用中,应根据不同的地质条件以及勘查目的,合理选用物探方法组合及试验参数,对各方法的成果要相互验证,取长补短,才能有效提高勘查成果准确性和可靠性.
In order to explore the suitability and limitations of integrated geophysical exploration techniques to gypsum mine gob,This paper take Jingmen gypsum mine gob as the research object,and chose integrated geophysical exploration techniques which included the high density resistivity method,IP sounding method and seismic imaging method to carry out detection work of gypsum mine gob. The analysis showed that the high density electrical method that is efficient and convenient,but limited by precision,can be used for delineating roughly the distribution and scope of gob. The IP sounding method can be simple and intuitive to find out water filling conditions of gob,whose exploration result is very important for stability analysis and prediction of development trend of gypsum mine gob. The seismic imaging method because of high precision and good detection effect can be used for the detailed exploration of management target area of gypsum mine gob.However,the seismic imaging method also has some shortcomings whose disadvantages are mainly that the efficiency of is low,and result of exploration can＇t find out water filling characteristics of gob.therefore,The seismic imaging method can＇t be application with large scale areas. In summary, in the practical application of exploration of gypsum mine gob,we should choose combination of geophysical exploration methods and test parameters according to different geological conditions and purposes of exploration.Meanwhile, in order to effectively improve the accuracy and reliability of the exploration results,we should verify the results of each method to each other,complement each other.
作者
陈江军
刘波
王鹏来
殷科
李业
何培
CHEN Jiang-jun;LIU Bo;WANG Peng-lai;YIN Ke;LI Ye;HE Pei(Hubei Institute of Hydrogeology and Engineering Geology, Hubei Jingzhou 434020, China;Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China)
出处
《地球物理学进展》
CSCD
北大核心
2018年第2期783-789,共7页
Progress in Geophysics
关键词
综合物探
高密度电法
激电中梯法
地震映射法
石膏矿采空区探测
geophysical exploration
high density electrical method
IP sounding method
seismic imaging method
exploration of gypsum mine gob
