晋城矿区天然地基结构与勘察方法的选择

晋城矿区天然地基结构东西部较简单，仅分布Q3粉质黏土和Q2粉质黏土层，适合于钻探、坑探等各种勘察方法。而西区的天然地基结构发生了较大变化，除发育常规Q2、Q3粉质黏土外，还夹杂着砂土、砾石土、碎石土、卵石等河流堆积物，传统的钻探、坑探手段在这些砂砾石土地区显得无能为力，就必须采用新的勘探方法。

The Natural Ground Structure of Jincheng Mining Area and the Selection of Prospecting Methods

This paper briefly introduces the distribution of the natural ground structure of Jincheng Mining Area, and points out that the prospect drilling te chniques should be selected according to the different natural ground beds and s hould be helpful to the sampling and testing processes, and the suitable drillin g tools and techniques must be selected for the purpose of smooth drilling in th e sand and gravel layers and satisfying the requirements for accurate and reliab le prospecting results.