Precise Detection and Modeling of Urban Underground Space Based on Integrated Geophysical Exploration
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摘要: 地下空间开发利用是解决城市诟病的有效途径，城市强干扰环境下地下空间精准探测已成为多学科交叉研究的热点，也是当前研究的难点。以大西安西咸新区为研究区，采用钻孔揭露、实验测试、多参数地球物理测井、地面地球物理勘探组合方法开展了地下空间精准探测与建模研究。通过综合地球物理勘探，获取了每层土体的多参数地球物理特征。结合钻孔揭露与实验测试资料，建立了基于钻孔资料的地面物探与测井校准与耦合，为地下空间地质结构模型赋予了物理属性。提出高密度电法、微动台阵观测和浅层地震勘探与多参数地球物理测井方法相结合，可作为城市强干扰环境下地下空间物探工作的最优方法组合。Abstract: Underground space development and utilization is an effective way to solve urban rickets. The precise detection of underground space under strong urban interference has become a hot topic in multidisciplinary research and also serves as the difficulty of current research. Taking Xi'an-Xianyang New District as the study area, the research on accurate detection and modeling of underground space has been carried out by using borehole exposure, experimental test, multi-parameter geophysical logging and ground geophysical exploration combined method. Multi-parameter geophysical characteristics of each layer of soil have been acquired through using integrated geophysical exploration. Based on the drilling exposure and experimental test data, the ground geophysical and logging calibration and coupling have been established based on drilling data, and then the physical properties have been assigned to the underground space geological structure model. It is proposed that high-density electrical method, micro-motion array observation and shallow seismic exploration combined with multi-parameter geophysical logging method can be used as the optimal combination method for underground space geophysical exploration under strong urban interference environment.
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