摘要
高密度电法具有测点密集,信息量大、精度高、结果可靠性强的优点,在探查地下水、采空区、岩溶发育带和地层划分方面具有其他物探方法难以比拟的优势。本文论述了其原理、技术及数据处理和结果解译方法。在此基础上,将该方法应用到了牛栏江特大桥桥基地层划分和缺陷探查中,根据已有地形地貌及钻孔地质资料,得出了布点依据、技术参数、勘察数据和解译结果。针对勘察结果与前期已探明资料存在的差异,文中从方法、技术、过程等多方面给出了可能导致差异产生的原因并提出了下一步需要改进的内容。
High-density Electrical Survey Method can offer more information, and its results are of high accuracy and high credibility. The method has incomparable advantages in detecting underground water, gob zones, Karst zones and dividing strata. This paper firstly discusses the theory, data processing method and explaining method of the High-density electrical survey method. On this basis, the method is applied to geological survey of the Niulan River Bridge for stratigraphic division and geologic flaw detection. By using the geographic and geomorphic conditions as well as drilling geological data, this paper has got the electrode＇s arranging method, technical parameters, survey data and geological interpretation. Finally, for the differences between the survey results and pre-existing geological data, the paper provides the element which may lead to the differences and proposes the contents needed to be improved from the viewpoints of methods, techniques and operational processes.
出处
《中国农村水利水电》
北大核心
2013年第10期75-77,共3页
China Rural Water and Hydropower
关键词
高密度电法
桥基勘察
地层划分
缺陷探查
High-density Electrical Method
bridge foundations survey
stratigraphic division
geologic flaw detection
