甘肃西流水面板堆石坝应力变形分析研究  

Stress and deformation analysis of the Xiliushui Project in Gansu Province

作　　者：董红健 余春海 徐泽平[3] 邵宇[3] 

机构地区：[1]甘肃省九甸峡水利枢纽有限责任公司,甘肃兰州730000 [2]新疆维吾尔自治区水利水电勘测设计研究院,新疆乌鲁木齐830000 [3]中国水利水电科学研究院岩土工程研究所,北京100044

出　　处：《中国水利水电科学研究院学报》2006年第3期207-212,共6页Journal of China Institute of Water Resources and Hydropower Research

摘　　要：采用非线性有限元分析方法,对甘肃省龙首二级(西流水)水电站面板堆石坝的应力变形特性进行了分析,给出了坝体及面板在施工期和蓄水期的应力和位移分布,并分析了高趾墙的应力变形特性。计算结果表明,由于西流水面板堆石坝位于狭窄河谷,坝体的变形受岸坡约束影响较大,面板在蓄水期沿坝轴线方向和坝坡方向呈双向受压状态,高趾墙大部分区域承受拉应力,但拉应力数值不大。本文的计算分析结果除可以为西流水工程的设计、施工提供依据外,对其它类似工程也具有一定的参考价值。By using a numerical analysis metnod, the stress and deformation properties of the Xiliushui Project in Gansu Province a concrete face rockfill dam 146.5m high was analyzed. The stress and deformation properties of the high retaining wall were also presented. The computation results show that the narrow valley and steep abutments do have certain impacts on the deformation of the dam. After reservoir impoundment, the concrete face slabs will be subject to compression stress both in dam axis direction and upstream slope direction. The high retaining wall will be mainly subject to tensile stress during reservoir impoundment, but the stress value is not high. The analysis results presented by this paper can be the basic information for design and construction of the Project. In addition, they could betaken reference for other similar projects.

关 键 词：面板堆石坝 庇力变形 高趾墙 西流水 

分 类 号：TV641.4[水利工程—水利水电工程]