软岩筑坝技术在某面板堆石坝的应用研究  

Study on the Application of Soft Rock Dam Construction Technology in a Faced Rockfill Dam

作　　者：龚欣傲 叶澜涛[1] 孙书洪[1] 李淼 Gong Xinao;Ye Lantao;Sun Shuhong;Li Miao(Tianjin Agricultural University,Tianjin,China;China Water Resources Beifang Investigation Design and Research Co.,Ltd.,Tianjin,China)

机构地区：[1]天津农学院,天津 [2]中国北方勘测设计研究有限责任公司,天津

出　　处：《科学技术创新》2024年第21期187-190,共4页Scientific and Technological Innovation

基　　金：天津市人社局“项目+团队”项目(XB202016);天津市教委科研计划项目(2021KJ116)。

摘　　要：本文采用邓肯张e-b模型,使用通用岩土分析软件MIDAS GTS NX软件对大坝建立了三维模型,设计四种不同分区使用软岩的方案,分别为主体、主堆石区、次堆石区以及次堆石区510~610 m高程部分使用软岩,并对四种方案下面板堆石坝的应力与变形进行了分析。得到以下结论:采用软岩的大坝应力与变形分布规律与传统堆石料类似,在次堆石区部分部位使用软岩可以大大降低大坝的应力与变形,软岩用于高面板坝坝体填筑是安全可行的。分析结果对工程设计优化、类似工程借鉴、保证工程安全具有一定的参考价值。In this paper,Duncan Chang's e-b model and MIDAS GTS NX software-a general geotechnical analysis program-are employed to construct a three-dimensional model of the dam.Four distinct zoning schemes of soft rock are designed:soft rock is utilized in the main body,main rockfill area,secondary rockfill area,and 510 ~610 m elevation part of the secondary rockfill area.The stress and deformation of faced rockfill DAMS under these four schemes is then examined.It is concluded that the distribution of dam stress and deformation with soft rock is similar to that with traditional rockfill.The use of soft rock in some parts of the secondary rockfill area can greatly reduce the stress and deformation of the dam,and it is safe and feasible to fill the dam body with high face.The analysis results have certain reference value for engineering design optimization,similar engineering reference and engineering safety assurance.

关 键 词：高面板堆石坝 软岩 有限元分析 应力变形分析 邓肯张e-b模型 

分 类 号：TV641.4[水利工程—水利水电工程]