高密度电法在某地铁工程孤石勘察中的应用

Application of High Density Resistivity Method in Boulder Detecting in a Metro Engineering

高密度电法具有勘探精度高,信息量大等优点,它已成为工程勘察中的主要物探手段之一。在地铁工程建设中常因地下孤石而导致盾构施工困难、耽误工期。该文通过工程实例,介绍了高密度电法在东莞R2线地铁工程孤石勘察中的应用效果,分析了不同装置形式下的探测效果以及在沥青路面实施探测的方法和数据解释。实例分析表明,高密度电法在孤石勘察中具有较好的效果。该文为孤石勘察工程提供了有益的参考。

The high density resistivity method has the advantages of high exploration precision,large amount of information,and it has become one of the main geophysical prospecting methods in engineering exploration. Because of the underground boulder in metro construction,the shield construction is difficulty,the construction period is delayed. In this paper,through the engineering example,the application effect of high density resistivity method in boulder exploration in R2 line metro engineering in Dongguan city is introduced. The detecting effect by different forms of devices and the detection method and data interpretation in asphalt pavement are analysed. The example shows that the high density resistivity method has good effect in the boulder investigation. This paper provides useful reference for boulder prospecting engineering.