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黑山峡河段两个开发方式的勘测设计工作进行了50多年,一级开发大柳树高坝枢纽布置设计以土质斜心墙堆石坝为推荐方案,混凝土面板堆石坝为备用方案。南京水利科学研究院对一级开发大柳树粘土斜心墙堆石坝和混凝土面板堆石坝进行了三维非线性有限元静、动力计算;西安理工大学对一级开发大柳树高土石坝洞群围岩稳定性、高边坡进行了分析研究。一级开发大柳树高土石坝存在地下洞室的施工风险、高边坡的稳定风险、建筑物地震风险及工程投资风险。
The exploration and design work of two development modes of Heishan Gorge has been carried out for more than 50 years. The first-level development of Daliushu high dam layout design is based on the design proposal of soil inclined core rockfill dam, and the concrete faced rockfill dam is the backup plan. Nanjing Hydraulic Research Institute conducted a three-dimensional nonlinear finite element analysis of static and dynamic loads for the first-stage development of the Daliushu clay inclined core rockfill dam and the concrete faced rockfill dam. Xi’an Polytechnic University also carried out the first-stage development of the Daliushu high- Surrounding rock stability and high slope are analyzed and studied. For the first-stage development of Daliushu high earth-rockfill dam, there is risk of construction of underground caverns, stable risk of high slope, earthquake risk of buildings and investment risk of the project.