高密度电法在西气东输施工道路料场勘查中的应用

Application of the high-density resistivity method in the material field survey on the construction road for the west-to-east gas pipeline project,China

高密度电法是一种高效率、高精度的勘探技术,近年来在工程勘查领域中的应用越来越广泛。对高密度电法勘探的应用现状及应用领域进行了简要的总结,介绍了高密度电法勘探的基本原理及MN-B三极测量装置系统的工作方法。结合西气东输施工道路料场勘查,对MN-B三极测量装置系统的数据采集、数据处理、地质解释和存在的问题进行了详细的论述与探讨。结果显示,高密度电法在西气东输管道施工道路天然建筑料场的勘查中显示出了较多的优点,取得了较好的效果,对于快速料场勘查、确定料场有用层的厚度、准确地计算料场储量具有不可替代的作用。

The high-density resistivity method is a high-efficiency, high-precision exploration technique. In recent year it has been more and more widely applied in geotechnical engineering investigation. This paper briefly summarizes the status and areas of applica- tion of high-density resistivity exploration and introduces the basic principle of high-density resistivity exploration and procedures of the MN-B pole-dipole resistivity measurement instrument. The data gathering, data processing, geological interpretation and existing problems concerning the MN-B pole-dipole measurement instrument are dealt with in details according to the material field survey on the construction road for the west-to-east gas pipeline project. The survey results show that this high-density resistivity method has shown many advantages in the material field survey on the construction road for the west-to-east gas pipeline project and yielded good results. It plays an irreplaceable role in rapid material field survey, determination of the thickness of the useful layer of the material field and accurate calculation of the reserves of material fields.