开挖高边坡预留岩埂技术  

Excavation Technology of Reserved Rock Ridge for High Slope

作　　者：刘炫灿 刘骞 LIU Xuan-can;LIU Qian

机构地区：[1]中国水利水电第十四工程局有限公司

出　　处：《云南水力发电》2019年第A01期14-17,共4页Yunnan Water Power

摘　　要：以国际水电项目斯里兰卡K坝项目为研究载体,针对不同的地质和岩层采用调整开挖坡比、分层、分区的不同支护方式,在开挖边坡上采用预留岩埂,形成整体网格岩梁达到稳定开挖边坡施工方案做研究,通过有限元或有限差分等数值分析方法对预留岩埂边坡稳定性计算和分析,选择最佳坡比进行分层、分区料场开采剥离,开采边坡稳定性分析,得出料场边坡稳定性满足要求。This Taking the Sri Lanka K dam project as the research carrier, this paper studies the construction scheme of stabilizing excavation slope by adjusting excavation slope ratio, layering and zoning for different geological and rock strata, using reserved rock ridges on excavation slope, forming integral grid rock beam, and using finite element or finite difference method. The stability of reserved rock ridge slope is calculated and analyzed by equal numerical analysis method. The optimum slope ratio is selected for delamination and subarea stripping, and the slope stability is analyzed. It is concluded that the slope stability of the material yard meets the requirements.

关 键 词：高边坡 预留岩埋 技术 网格岩梁 稳定性计算 

分 类 号：TV5[水利工程—水利水电工程]