【摘要】 随着高速公路建设的快速发展,岩溶作为一种典型的不良地质现象在施工建设中的危害越来越明显。该文简要介绍了高密度电阻率法所基于的静电场理论和工作特点,应用该方法在某高速公路建设中的岩溶勘察进行了探测,获得了测区部位的视电阻率二维成像图;通过对视电阻率二维成像图异常形态、高低阻等特征的分析,推断出地下岩溶、溶洞的分布范围、大小和埋深。经钻探资料证实,推断结果与实际情况相吻合。更多还原

【Abstract】 Along with the rapid development of expressways,the harmfulness of karst(It is a kind of typical bad geological phenomenon) in construction is more obvious.This article simply introduces the electrostatic field theory and the work characteristics of the high density resistivity method and how to use this method to investigate karst in a certain expressway construction to obtain the visual resistance ratio 2D imaging drawing of the surveyed area.It analyzes the abnormity,high and low resistance of the 2D imaging drawing,inferrs the distribution area,size and burial depth of the underground karst caves,and verifies that the result is the same as the that of the drilling data.更多还原