百把寨水库坝址工程地质条件分析及坝型比选

Analysis of the Engineering Geological Conditions of Baibazhai Reservoir Dam Site and the Dam Type Selection

为降低百把寨水库工程建设风险和确保工程安全运行,充分发挥其经济与社会效益,针对水库工程可选坝址的地质构造、岩土性质、水文条件等,深入探究了上、下两处坝址的坝基、边坡和防渗条件等,推荐选择上坝址为宜;同时通过技术、经济、环境影响、运行管理等方面对重力坝、拱坝和面板堆石坝三种坝型进行工程适宜性分析,推荐采用砌石重力坝。该工程的分析论证可供类似中型水库工程坝址坝型比选参考。

In order to reduce the construction risks and ensure the safe operation of the Baibazhai Reservoir project,and maximize its economic and social benefits,an in-depth investigation is carried out on the geological conditions,geotechnical properties,and hydrological conditions of the optional dam sites.The dam foundation,slope and seepage control conditions of the upper and lower dam sites are explored.The upper dam site is recommended.Also,a suitability analysis of three dam types,including the gravity dam,arch dam and faced rockfill dam,is conducted from the aspects of technology,economy,environmental impacts and operation management.The masonry gravity dam is recommended.It can be useful reference for the site and dam type comparison and selection of similar medium-size reservoir projects.