复杂地质条件下陡峭高边坡的设计及施工

Design and Construction of Steep High Slope Under Complex Geological Conditions

巴基斯坦Mohmand水电站项目地质条件复杂,岩石风化强度大、破碎程度较高,主河道两侧山体呈深“V”字形。工程师团队在保证安全的前提下,为节约业主投资,采用较为激进的设计理念,其边坡设计坡比大、支护手段简单,与国内相关规范及相关工程的施工经验形成了强烈对比。为研究该边坡设计理念,系统梳理了导流洞出口边坡的详细设计、施工手段等,以期为陡峭边坡设计及施工提供不同的视角和案例依据。

The geological conditions of Mohmand hydropower station project in Pakistan are complex,with strong weathering and high degree of rock fragmentation.The mountains on both sides of the main river channel are in deep"V"shape.In order to save the owner's investment under the premise of ensuring safety,the team of engineers adopts a more radical design concept,which has a large slope ratio and simple supporting means,in sharp contrast to the relevant domestic codes and construction experience of related projects.To study the slope design concept,the detailed design and construction means of the exit slope of the diversion tunnel are systematically sorted out,in order to provide different perspectives and case bases for the design and construction of the steep slope.