城市地下障碍物精确定位综合探测方法应用研究

Application of Accurate Location and Comprehensive Detection of Urban Subsurface Obstacles

城市变迁过程中在地下遗留了大量障碍物,如建构筑物基础、混凝土管道等,为城市现代化建设带来了新挑战。根据城市空间结构独特、干扰源丰富等特征,分析地质雷达、高密度电法、地震映像等物探技术方法在城市地下障碍物探测中的优缺点。通过采用多种物探手段同触探与槽探相结合的综合探测方法,分别对规则和不规则障碍物进行精确定位和定界,为施工设计提供基础保障,解决工程问题。

In the process of urban development,a large number of obstacles have been left underground,such as building structure foundation and concrete pipeline,which has brought new challenges to urban modernization.According to the characteristics of unique urban spatial structure and rich interference sources,the advantages and disadvantages of geophysical exploration techniques in the detection of urban underground obstacles were analyzed,such as geological radar,high-density electrical method and seismic imaging.By using a variety of geophysical methods combined with penetration and trenching,the regular and irregular obstacles were located and delimited accurately,which provided a basic guarantee for construction design and effectively solves the problems encountered in the project.