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基于前期钻孔地质调查得到的数据资料,利用物探手段对济南绕城高速济南连接线工程老虎山隧道入口所在场区进行深度探测,借助可控源音频大地电磁法(CSAMT)获得整个区域岩体电阻率图,通过对数据进一步解译,进而了解场区的地质环境条件,查明了隧址区围岩构造走向、倾向、宽度以及不良地质体情况,包括岩性接触带、侵入接触带、断裂带和有地下隐伏构造,并对电阻率异常及变化较大区域给予合理解释,为隧道施工提供科学依据。
Based on the data obtained from the previous drilling geological survey, geophysical methods were used to detect the depth of the site of Laohushan tunnel entrance of Jinan Ring Expressway Jinan Tunnel Project. By means of CSAMT, Resistivity map, further interpretation of the data, and then understand the geology and environmental conditions of the field area to identify the tunnel surrounding rock structure trends, trends, width and adverse geological conditions, including the lithology contact zone, intrusion zone, Fault zone and underground concealed structure, and provide reasonable explanation for the areas with abnormal resistivity and large changes, providing a scientific basis for tunnel construction.