高密度电法在建筑地基勘察中的应用和改进建议

Application and improvement suggestions of high density electrical method in building foundation reconnaissance

高密度电法是一种重要且成熟的电法勘探技术。本文论述了高密度电法的基本原理,以工程实例介绍了高密度电法在建筑地基基础勘察方面,对石灰岩基地中岩溶、裂隙的防范性探测和建筑地基处于采空区时的探测。总结了最近几年高密度电法的技术进展—三维高密度电法和超高密度电法技术,超高密度电法开发了新的采集形式,采集信息巨大,在工程地质领域取得了很好的效果;创新地提出了高密度电法仪器的改进思路,提升高密度电法的勘探深度和精度。

High-density electrical method is an important and mature electrical exploration technology.This paper discusses the basic principle of high-density electrical method,and uses the engineering example to introduce the application of high-density electrical method in the reconnaissance of building foundation,the preventive detection of karst and cracks in the limestone base,and the detection of building foundation in the goaf.This paper summarizes the technical progress of high-density electrical methods in recent years,three-dimensional high-density electrical methods,and Ultra-high-density electrical method technology;Ultra-high density electric method has developed a new collection form,collecting huge information,which has achieved good results in the field of engineering geology.The idea of the improvement of high density electric method is innovatively proposed to improve the exploration depth and precision by the high density electric method.