应用综合物探方法进行公路路基塌陷调查

Investigation of Highway Foundation's Subsidence by Applying Comprehensive Geophysical Exploration

随着公路建设发展,路基塌陷作为一种典型的地质灾害对公路对建设和运营安全的影响越来越明显。本文以京珠国道K299+320^+480路基塌陷物探勘察为例,介绍了采用地质雷达法和高密度电法探测公路路基塌陷的方法及原理,并对该两种方法勘察成果进行了分析,达到了探测路基塌陷的目的。探测结果表明综合物探方法在探测路基塌陷时有不可替代的优越性,而且具有方便、经济、快捷和成果直观的特点。

Along with the development of highway construction, road subsidence as one of the typical geohazards has more obvious influences to highway construction and operation safety. Given the example of highway foundation＇s subsidence at K299＋320-＋480 on the expressway from Beijing to Zhuhai by applying geophysical exploration, this paper introduces the technique and principle of geology radar exploration and high density resistivity exploration. The paper further analyzes the exploration results of the above two methods and finally meets the demands of the investigation of highway foundation＇ s subsidence. The results show that the comprehensive geophysical exploration has incommensurable advantages and also has many characteristics of convenience, economy, shortcut and intuition.