摘要
近年来岩溶地面塌陷事件频发,已成为全国影响最大、危害性最大的地质灾害类型之一,严重影响了人民群众的生命财产安全和城市的运行秩序。因此,如何提高地下空间岩溶探测有效性及精确性显得尤为重要。本文将三维高密度电法应用于武汉某岩溶塌陷区探测,该方法是在塌陷区一次性完成布极,利用分布式串/并行采集方式,将地下空间剖分成大量的矩形棱柱,通过缩小实测电阻率与计算电阻率的差值差异,实现了模拟地下实际情况的过程。本次研究从空间角度进行数据处理解释,从而实现了岩溶探测成果的三维可视化,直观地展示了目标体的走向、空间位置及形态,大大地提升了反演解释的可靠性和精度,取得了较好的应用效果。
In recent years,karst ground collapse,a frequent occurrance,has become one of the most influential and most harmful types of geological disasters in the country,seriously affecting the safety of people′s lives,properties and the order of urban operations.Therefore,how to improve the effectiveness and accuracy of karst detection in underground space is particularly important.In this paper,an innovative three-dimensional high-density electrical method is applied to the detection of a karst collapse area in Wuhan.The method is to complete the pole deployment in the collapse area at one time,and use the distributed serial/parallel acquisition method to divide the underground space into a large number of rectangular prisms.By narrowing the difference between the measured resistivity and the calculated resistivity,the process of simulating the actual underground situation is realized.Data processing and interpretation are performed from a spatial perspective to realize three-dimensional visualization of karst exploration and intuitively display the orientation,spatial position and shape of the target body,which greatly improves the reliability and accuracy of inversion interpretation and achieves better application effects.
作者
王洁
Wang Jie(Hubei Coal Geological Exploration Team, Wuhan Hubei 430200, China)
出处
《工程地球物理学报》
2021年第1期107-112,共6页
Chinese Journal of Engineering Geophysics
基金
中国煤炭地质总局湖北煤炭地质局科技项目(编号:ZMHB-2019-Ⅲ-12)。
关键词
三维高密度电法
岩溶
塌陷
探测
three-dimensional high-density electrical method
karst
collapse
detection
