Detailed Survey of K27-K44+180 Section of Chongqing Xiushan to Guizhou Yinjiang Expressway (Chongqing Section)
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survey
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Detailed Description
Geological drilling refers to the use of certain drilling machinery and techniques to obtain rock and mineral cores below the surface, and to make reliable evaluations of geological and mineral resource parameters. Drilling is an important technical means in geological exploration work. Use a drilling rig to drill down from the surface, forming cylindrical boreholes in the formation to identify and divide the formation. Rock cores, ore samples, and soil samples can be obtained from different depths in the borehole for analysis and research, to determine the physical and mechanical properties and indicators of rocks and soil layers, and to provide design needs. The drilling rigs used are mainly divided into rotary and impact types.
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