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在高风险岩溶地区隧道施工中,需要选择适宜的综合物探技术,并发挥其高效、经济等技术优势,提高地质勘查精度,为高风险岩溶地区隧道安全施工提供重要支撑。结合湖北省大广南高速公路紫荆山隧道施工过程,开展综合物探技术现场研究,依据不同地段地质情况,选择适宜的综合物探技术,清晰揭示了该隧道施工过程中的不良地质体,极大地降低了隧道建设中的事故隐患,对类似情况隧道工程具有重要示范和指导意义。
In the construction of tunnels in high-risk karst areas, it is necessary to select appropriate integrated geophysical prospecting techniques and to exert their technical advantages of high efficiency and economy to improve the geological prospecting accuracy and provide important support for tunnel safety construction in high-risk karst areas. Combined with the construction process of Zijin Mountain Tunnel in Da Guang Nan Expressway in Hubei Province, a field study of integrated geophysical techniques was conducted. Based on the geological conditions in different locations, the selection of appropriate integrated geophysical techniques clearly revealed the poor geological bodies in the construction of the tunnel and greatly reduced The hidden trouble in tunnel construction has important demonstration and guiding significance for tunnel construction under similar conditions.