论文部分内容阅读
用重庆奔腾数控技术研究所的WDZJ-3型高密度电法仪,采集了既有线沪昆铁路某段+000～+450的温纳装置视电阻率数据。对采集的资料用RES2DINV软件进行了反演,结合地质情况对既有线地下不良地质病害进行了解释推断,结果表明岩溶洞穴的电阻率与围岩的电阻率有明显差异,在视电阻率等值线断面图和反演成像图中表现为低阻异常区,据此圈定了地下溶洞的埋深、大小与规模,取得了良好的地质效果。高密度电阻率法具有工作效率高、采集数据稳定可靠,成像图件直观清晰等优点。理论和实践表明,高密度电法在既有线铁路路基地质病害探查有较大优点,可推广应用。
Using the WDZJ-3 high-density electrical conductivity meter from Chongqing Pentium Numerical Control Technology Institute, the apparent resistivity data of the Wenna device at a section of +000 ~ + 450 of the existing Shanghai-Kunming Railway was collected. The collected data were retrieved by software RES2DINV. Based on the geological conditions, the unfavorable underground geological conditions in the existing railway line were interpreted and inferred. The results show that the resistivity of karst caves is obviously different from the resistivity of surrounding rock. The low-resistivity anomalous zone is represented in the line and inversion images, which depict the depth, size and scale of the underground karst cave and achieve good geological results. High-density resistivity method has the advantages of high working efficiency, stable and reliable data collection, intuitive and clear imaging images. Theory and practice show that high-density electrical method in the existing railway subgrade geological exploration has greater advantages, can be extended and applied.