河北省地质钻孔资料分析

Analysis of geological drilling data in Hebei Province

地质钻孔资料是工程地质、矿产勘察等报告中广泛使用的资料,具有重要的二次开发和使用价值,对于工程项目的启动如:规划、设计、施工等具有重要意义。搜集河北省现有地质钻孔资料,给出该省钻孔分布图、场地类别分布图、各市等厚线图;以钻孔资料中剪切波速作为液化判别指标,判断场地液化情况;以邯郸地区钻孔资料为例,进行三维地层划分,与磁县断裂结合分析,发现断裂在地下的分布状态直观可见,从而为断裂分析提供一种直观手段。

Geological drilling data is widely used in the reports of engineering geology and mineral exploration,and is of great value in the secondary development and reusing value.Drilling data is very significant for project planning,design,construction and so on.In this paper,the collected drilling data of Hebei Province are analyzed.The drilling distribution,site classification map,thick line graph of each city and liquefied sites distribution are provided.The shear wave velocity in borehole data is used as the liquefaction index to judge the liquefaction of the site.Taking the drilling data of Handan as an example,the three-dimensional strata are divided.Combined with the analysis of Cixian-Daming fracture,it is found that the fracture distribution in the subsurface is visible,which provides a visual means for fracture analysis.