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引黄入晋工程利民堡段为厚覆盖区,原设计的洞线在该段红粘土层中穿过的宽度达500余米,洞线在红粘土层中穿过不利于隧洞的挖掘。为选取洞线在该区穿过的最佳位置和查明测区地质构造.开展了地震法和电测深法工作。勘查结果查明了测区地层分布和地下地质构造及赋水情况.为合理设计洞线和今后隧洞的挖掘提供了可靠的资料。
The Yellow River diversion project, Liminbao Section, is a thick covered area. The originally designed hole line passes through a width of more than 500 meters in the red clay layer. The cave line runs through the red clay layer which is not conducive to tunnel excavation. In order to select the best place for the hole line to pass in this area and to find out the geological structure of the survey area, the seismic method and electric sounding method were carried out. The results of the exploration have confirmed the stratigraphic distribution, underground geological structure and water supply in the survey area, and provided reliable data for the rational design of tunnels and the excavation of future tunnels.