吐香坝水库大坝坝址坝型比选及结构应力计算
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摘要
针对吐香坝水库建坝河段由于两岸地形不对称、坝坡山体连续性差且单薄、岩体破碎、卸荷裂隙高度发育等,给坝基、坝肩的受力和大坝稳定性带来不利影响的问题,结合现场勘探成果,综合考虑地形特征、地层岩性、地质构造、岩溶水文、坝基防渗及大坝抗滑稳定等因素,设计优选下坝址堆石混凝土重力坝方案。经大坝结构应力和抗滑稳定性分析论证,各荷载组合工况下大坝结构应力、基岩承载力和抗滑稳定性均满足规范要求,设计优选方案技术可行、经济合理。
On-site exploration results are combined,the rock-fill concrete gravity dam design plan is proposed after topographical features,stratigraphic lithology,geological structure,karst hydrology,dam foundation seepage prevention and dam anti-sliding stability and so on are considered aiming at problems of Tuxiangba Reservoir dam building river section such as the asymmetrical terrain,poor continuity and thin thickness for dam slope mountain,broken rock mass and fracture development in the river section of dam construction which may have adverse affect for the force of dam foundation and dam shoulder as well as dam stability. The dam structural stress,bedrock bearing capacity and anti-sliding stability can meet the requirements of the specification under various load combined conditions according to the dam structural stress and antisliding stability analyzing demonstration. The design plan is technically feasible and economically reasonable.
On-site exploration results are combined,the rock-fill concrete gravity dam design plan is proposed after topographical features,stratigraphic lithology,geological structure,karst hydrology,dam foundation seepage prevention and dam anti-sliding stability and so on are considered aiming at problems of Tuxiangba Reservoir dam building river section such as the asymmetrical terrain,poor continuity and thin thickness for dam slope mountain,broken rock mass and fracture development in the river section of dam construction which may have adverse affect for the force of dam foundation and dam shoulder as well as dam stability. The dam structural stress,bedrock bearing capacity and anti-sliding stability can meet the requirements of the specification under various load combined conditions according to the dam structural stress and antisliding stability analyzing demonstration. The design plan is technically feasible and economically reasonable.
引文
[1]马秉务.鸡鸠水库工程地质条件及坝址比选[J].水科学与工程技术,2015(1):76-78.
[2]郑群英.浙江嵊州市下王镇石舍水电站上下坝址变更的方案比较[J].中国水能及电气化,2011(3):52-55.
[3]苏轶.吊兰水库坝址优化选择及设计[J].水利科技与经济,2015,21(8):20-21.
[4]苏桐鳞.酒泉市洪水河水库坝址方案比选[J].水利规划与设计,2017(9):40-42,45.
[5]马英侠,黄红飞.重庆乌江白马航电枢纽坝址选择中的难点分析[J].水利建设与管理,2012,32(12):17-18.
[6]韩军.影响坝型比选的控制因素探讨[J].吉林水利,2015(8):5-7.
[7]杨文,陈洋.金平水电站坝型比选研究[J].水电与新能源,2017(5):47-50.
[8]李江.严寒地区“V”形河谷水利枢纽工程坝型比选研究[J].甘肃水利水电技术,2014,50(3):18-23.
[9]李风亮.堆石混凝土技术在长坑三级水库的应用[J].水科学与工程技术,2010(6):79-80.
[10]罗传雄.广东首座堆石混凝土重力坝———长坑水库[J].水利规划与设计,2013(1):58.
[2]郑群英.浙江嵊州市下王镇石舍水电站上下坝址变更的方案比较[J].中国水能及电气化,2011(3):52-55.
[3]苏轶.吊兰水库坝址优化选择及设计[J].水利科技与经济,2015,21(8):20-21.
[4]苏桐鳞.酒泉市洪水河水库坝址方案比选[J].水利规划与设计,2017(9):40-42,45.
[5]马英侠,黄红飞.重庆乌江白马航电枢纽坝址选择中的难点分析[J].水利建设与管理,2012,32(12):17-18.
[6]韩军.影响坝型比选的控制因素探讨[J].吉林水利,2015(8):5-7.
[7]杨文,陈洋.金平水电站坝型比选研究[J].水电与新能源,2017(5):47-50.
[8]李江.严寒地区“V”形河谷水利枢纽工程坝型比选研究[J].甘肃水利水电技术,2014,50(3):18-23.
[9]李风亮.堆石混凝土技术在长坑三级水库的应用[J].水科学与工程技术,2010(6):79-80.
[10]罗传雄.广东首座堆石混凝土重力坝———长坑水库[J].水利规划与设计,2013(1):58.