河边水库坝基溶蚀泥化夹层发育特征及处置措施

Development Characteristics and Disposal Measures of Dissolution Muddy Interlayer in Dam Foundation of Hebian Resevoir

河边水库坝基开挖过程中,揭露了溶蚀泥化夹层、风化破碎带、溶蚀裂隙等不良地质结构面。在分析钻孔、声波测试、钻孔成像等资料的基础上,总结了溶蚀泥化夹层空间分布规律,从岩性、地质构造、地下水活动等方面初步分析了溶蚀泥化夹层的工程地质成因,并提出相应的工程处置措施。研究具有重要的工程意义。

During the excavation of dam foundation in Hebian Resevoir,the bad geological structural planes such as dissolution muddy interlayer,weathered fracture zone and dissolute fissure are exposed.Based on the analysis of drilling,acoustic test,borehole imaging and other data,this paper summarizes the spatial distribution law of dissolution muddy interlayer,preliminarily analyzes the engineering geological causes of dissolution muddy interlayer from lithology,geological structure,groundwater activities and other aspects,and puts forward corresponding engineering disposal measures.The research is of great engineering significance.