某水库坝址区工程地质条件及评价  

Engineering Geological Conditions and Evaluation of Dam Site of a Reservoir

作　　者：唐瑶 熊灿娟[1] 陈丽[1] 犹茜 董柏材 TANG Yao;XIONG Canjuan;CHEN Li;YOU Qian;DONG Baicai(Liupanshui Normal College,Liumanshui Guizhou 553004)

机构地区：[1]六盘水师范学院,贵州六盘水553004

出　　处：《河南科技》2020年第19期67-69,共3页Henan Science and Technology

基　　金：六盘水师范学院大学生科研项目(LPSSYDXS18112);六盘水师范学院教改项目(LPSSYjg201807)。

摘　　要：为准确评价某水库的工程地质条件,本文综合该水库现场踏勘、钻孔以及平硐等勘察资料及室内试验成果,对坝址区主要地质条件进行详细论证及评价。结果表明,该水库坝基工程地质条件较好,两岸山体较宽厚,库岸稳定,河流河床及岸坡覆盖层不厚,岩体风化不深,弱风化下部岩体作为大坝基础持力层可满足设计荷载要求。左右两岸T1yn1属弱岩溶地块,坝址区为强可溶岩,因此形成管道型及裂隙渗漏的可能性均较大,需要进行坝基和两岸防渗处理。In order to accurately evaluate the engineering geological conditions of a certain reservoir,the main geological conditions of the dam site were demonstrated and evaluated in detail based on the field survey,drilling and adit survey data and laboratory test results.The results show that the engineering geological conditions of the dam foundation of the reservoir are good,the mountains on both banks are relatively wide and thick,the reservoir bank is stable,the overburden layer of river bed and bank slope is not thick,the rock mass weathering is not deep,and the rock mass under the weak weathering can meet the design load requirements.T1yn1 on the left and right banks belongs to weak karst block,and the dam site area is strongly soluble rock.Therefore,it is possible to form pipeline type and crack leakage,so it is necessary to carry out anti-seepage treatment for dam foundation and both banks.

关 键 词：水库坝址区 工程地质条件 地形地貌 地层岩性 

分 类 号：TV221.2[水利工程—水工结构工程]