塘坎上水库混凝土拱坝枢纽布置及结构计算  

Layout and Structure Calculation of Concrete Arch Dam for Tang-kanshang Reservoir

作　　者：周光臣 Zhou Guangchen

机构地区：[1]贵州春晓博浩工程技术咨询有限公司,贵州贵阳550001

出　　处：《吉林水利》2019年第10期27-31,34,共6页Jilin Water Resources

摘　　要：塘坎上水库建坝河段存在两岸多深切且呈不对称,冲沟密集发育,岩体整体均一性差,岩体溶蚀、溶洞发育等,可能给大坝结构受力和坝肩稳定带来不利影响。结合现场踏勘及地质钻探成果,综合考虑地形地质适应性、工程投资经济性和枢纽布置合理性等因素,设计优选上坝址碾压混凝土拱坝方案。经大坝应力和坝肩稳定性计算分析,各荷载组合工况下大坝应力、基岩承载力、径向变位和坝肩抗滑稳定等指标均满足规范,可为工程高效优质施工建设提供重要设计技术指导。The problems such as the mostly deep and asymmetrical terrain,densely developed of ditch,poor overall and uniformity and development dissolution and cave of rock mass at two banks of river which may have adversely affect for the dam structure stress and abutment stability has been introduced.Combined with on-site survey and geological exploration results,the upper dam site concrete arch dam design scheme has been proposed after considering the factors such as topographic geological adaptability,engineering investment economy and rationality of hub layout.According to the dam structural stress and anti-sliding stability analyzing results,the dam structural stress,bedrock bearing capacity,radial displacement and abutment stability and can meet the requirements of the specification under various load combined conditions.The prefer design scheme can provide important design and technical guidance for efficient and high-quality construction of the project.

关 键 词：碾压混凝土拱坝 建坝河段 坝肩稳定性 塘坎上水库 

分 类 号：TV642.4[水利工程—水利水电工程]