深尾水河床式电站宽尾墩体型优化试验研究
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摘要
该文采用模型试验重点针对具有深尾水、低水头和大单宽流量的泄洪闸体型进行了研究。以某在建河床式水电站为研究对象,基于该水电站实际运行方式,以出闸水流衔接流态、消力池流态、出池流速和下游冲刷作为控制指标,分别比较了Y型宽尾墩、常规宽尾墩及常规宽尾墩+底部贴角等泄洪闸体型,最终确定常规宽尾墩+底部贴角方案相对较优。该方案通过采用底部贴角减小了宽尾墩下部过流面积,继而增大了泄洪表孔出口水深,使水体在消力池内的波动和流速都相对减小,消能率相对提高,进而满足工程泄洪消能要求。
In this paper, the model test was used to study flood discharge gate body types with deep tail water, low water thheea da catunadl loaprgere atsiionng lem owdied tohf ftlhoe wh. yTdarkoipnog wae rr isvteatriboend, thhyed frloopwo wpaetrt esrtnat ioof nt huen sdleuri cceo gnsattreu, ctthieo nf laos wt hpe artteesrena rcohf othbjee cstl uaincde bcaeslle,d tohne discharge velocity of the sluice pool and the erosion of the lower reaches were taken as control indexes. The Y type flaring gate pier, conventional flaring gate pier, conventional flaring gate pier and the bottom of the stick angle of sluice body were compared,and ultimately the conventional flaring gate pier and bottom corner scheme was relatively better. The program made use of the bottom corner reduced lower flaring pier flow area, and then increased the spillway outlet water depth, so that the fluctuation and velocity of the water body in the stilling pool were relatively reduced and the energy dissipation rate was relatively increased, and finally met the requirements of flood discharge and energy dissipation.
In this paper, the model test was used to study flood discharge gate body types with deep tail water, low water thheea da catunadl loaprgere atsiionng lem owdied tohf ftlhoe wh. yTdarkoipnog wae rr isvteatriboend, thhyed frloopwo wpaetrt esrtnat ioof nt huen sdleuri cceo gnsattreu, ctthieo nf laos wt hpe artteesrena rcohf othbjee cstl uaincde bcaeslle,d tohne discharge velocity of the sluice pool and the erosion of the lower reaches were taken as control indexes. The Y type flaring gate pier, conventional flaring gate pier, conventional flaring gate pier and the bottom of the stick angle of sluice body were compared,and ultimately the conventional flaring gate pier and bottom corner scheme was relatively better. The program made use of the bottom corner reduced lower flaring pier flow area, and then increased the spillway outlet water depth, so that the fluctuation and velocity of the water body in the stilling pool were relatively reduced and the energy dissipation rate was relatively increased, and finally met the requirements of flood discharge and energy dissipation.
引文
[1]胡明.低水头、大单宽流量泄洪消能形式试验研究[J].水力发电学报,2013,32(5):158-162.HU Ming.Experimental study on energy dissipation form of low head,large unit discharge flood discharge[J].Journal of Hydroelectric Engineering,2013,32(5):158-162.
[2]李中枢,潘艳华,韩连超,等.宽尾墩联合消能工体型选择及水力特性的研究[J].水科学进展,2000,11(1):82-87.LI Zhong-shu,PAN Yan-hua,HAN Lian-chao,et al.Hydraulics of stilling basin with flaring gate piers[J].Advances in Water Science,2000,11(1):82-87.
[3]梁宗祥,尹进步,刘韩生,等.宽尾墩与台阶坝面联合消能工的试验探索[J].长江科学院院报,2003,20(6):3-5.LIANG Zong-xiang,YIN Jin-bu,LIU Han-sheng,et al.Experimental study on united dissipator with stepped spillway dam surface and flaring gate piers[J].Journal of Yangtze River Scientific Research Institute,2003,20(6):3-5.
[4]胡耀华,伍超,卢红,等.宽尾墩后接阶梯溢流坝面水工设施的研究[J].水力发电学报,2006,25(5):37-41.HU Yao-hua,WU Chao,LU Hong,et al.Study on hydraulic structure of flaring gate piers locating at the upstream of stepped spillway.[J].Journal of Hydroelectric Engineering,2006,25(5):37-41.
[5]姬春利,刘韩生,梁宗祥,等.沙沱水电站宽尾墩联合消能工的应用研究[J].中国农村水利水电,2008(7):106-109.JI Chun-li,LIU Han-sheng,LIANG Zong-xiang,et al.Research on combined energy dissipators of flaring gate piers of the shatuo hydropower station[J].China Rural Water&Hydropower,2008(7):106-109.
[6]牛坤,把多铎,梁宗祥.莲花台水电站宽尾墩联合消能工的应用研究[J].水力发电,2011,37(2):84-86.NIU Kun,BA Duo-duo,LIANG Zong-xiang.Research on combined energy dissipator with flaring pier for lianhuatai hydropower station[J].Water Power,2011,37(2):84-86.
[7]谢省宗,吴一红,陈文学.我国高坝泄洪消能新技术的研究和创新[J].水利学报,2016,47(3):324-336.XIE Sheng-zong,WU Yi-hong,CHEN Wen-xue.New technology and innovation on flood discharge and energy dissipation of high dams in China[J].Journal of Hydraulic Engineering,2016,47(3):324-336.
[8]李福田,刘沛清,许唯临,等.高拱坝表孔宽尾墩对泄洪能力影响的试验研究[J].水利学报,2003,34(11):0043-0047.LI Fu-tian,LIU Pei-qing,XU Wei-lin,et al.Experimental study on effect of flaring piers on weir discharge capacity in high arch dam[J].Journal of Hydraulic Engineering,2003,34(11):0043-0047.
[9]李乃稳,许唯临,刘超,等.高拱坝表孔宽尾墩水力特性试验研究[J].水力发电学报,2012,31(2):56-61.LI Nai-wen,XU Wei-lin,LIU Chao,et al.Experimental study on hydraulic characteristics of flaring gate piers of surface spillway in the high arch dam[J].Journal of Hydroelectric Engineering,2012,31(2):56-61.
[10]曾华.不同体型宽尾墩的水力特性比较研究[D].四川大学,成都,中国,2006.ZENG Hua.Research on hydraulic characteristics of different faring gate piers[D].Sichuan University,Chengdu,China,2006.
[11]田振华,杨具瑞,罗晶,等.X、Y型宽尾墩水力特性研究[J].人民长江,2009,40(24):48-51.TIAN Zhen-hua,YANG Ju-rui,LUO Jing,et al.Hydraulic characteristics of X-shape and Y-shape flaring gate piers[J].Yangtze River.2009,40(24):48-51.
[12]张挺,伍超,莫政宇,等.X型和Y型宽尾墩水力特性对比研究[J].水利学报,2007,38(10):1207-1213.ZHANG Ting,WU Chao,MO Zheng-yu,et al.Comparison on hydraulic characteristics of X-shape and Y-shape flaring gate piers[J].Journal of Hydraulic Engineering,2007,38(10):1207-1213.
[13]王波,伍平,陈云良.X型与Y型宽尾墩流道内水流特性研究[J].四川大学学报(工程科学版),2012,44(3):1-6.WANG Bo,WU Ping,CHEN Yun-liang.Hydraulics of flow in gate chamber with X-shaped and Y-shaped flaring gate piers[J].Journal of Sichuan University(Engineering Science Edition),2012,44(3):1-6.
[14]石昊,祝云宪,杨峰,等.齿坎式宽尾墩消能特性CFD模拟[J].水电能源科学,2017,35(10):108-111.SHI Hao,ZHU Yun-xian,YANG Feng,et al.CFDsimulation of dissipation characteristics for multiple Slit-type energy dissipater[J].Water Resources and Power,2017,35(10):108-111.
[15]董宗师,王均星,张文传,等.低Fr数非完全宽尾墩消能特性研究[J].四川大学学报(工程科学版),2016,48(5):9-15.DONG Zong-shi,WANG Jun-xing,ZHANGWen-chuan,et al.Study on dissipation characteristics of incomplete flaring gate pier with low froude number[J].Journal of Sichuan University(Engineering Science Edition),2016,48(5):9-15.
[16]周招,王均星,梁砚,等.深尾水消力池非完全宽尾墩消能实验研究[J].水科学进展,2017,28(5):729-737.ZHOU Zhao,WANG Jun-xing,LIANG Yan,et al.Study on incompletely flaring gate pier energy dissipation in deep tail water stilling basin[J].Advances in Water Science,2017,28(5):729-737.
[17]王海云,戴光清,杨庆,等.低水头、大单宽流量泄洪消能方式研究[J].水力发电,2006,32(8):25-26.WANG Hai-yun,DAI Guang-qing,YANG Qing,et al.Research and test for energy dissipation form of low head,large-unite discharge flood discharging[J].Water Power,2006,32(8):25-26.
[18]周喜德,殷彤,雷云华,等.低Fr数宽尾墩消力池流场3维数值模拟[J].四川大学学报(工程科学版),2010,42(6):17-24.ZHOU Xi-de,YIN Tong,LEI Yun-hua,et al.3Dnumerical simulation of turbulent flow with lower fr number in stilling basin with flaring gate pier[J].Journal of Sichuan University(Engineering Science Edition),2010,42(6):17-24.
[2]李中枢,潘艳华,韩连超,等.宽尾墩联合消能工体型选择及水力特性的研究[J].水科学进展,2000,11(1):82-87.LI Zhong-shu,PAN Yan-hua,HAN Lian-chao,et al.Hydraulics of stilling basin with flaring gate piers[J].Advances in Water Science,2000,11(1):82-87.
[3]梁宗祥,尹进步,刘韩生,等.宽尾墩与台阶坝面联合消能工的试验探索[J].长江科学院院报,2003,20(6):3-5.LIANG Zong-xiang,YIN Jin-bu,LIU Han-sheng,et al.Experimental study on united dissipator with stepped spillway dam surface and flaring gate piers[J].Journal of Yangtze River Scientific Research Institute,2003,20(6):3-5.
[4]胡耀华,伍超,卢红,等.宽尾墩后接阶梯溢流坝面水工设施的研究[J].水力发电学报,2006,25(5):37-41.HU Yao-hua,WU Chao,LU Hong,et al.Study on hydraulic structure of flaring gate piers locating at the upstream of stepped spillway.[J].Journal of Hydroelectric Engineering,2006,25(5):37-41.
[5]姬春利,刘韩生,梁宗祥,等.沙沱水电站宽尾墩联合消能工的应用研究[J].中国农村水利水电,2008(7):106-109.JI Chun-li,LIU Han-sheng,LIANG Zong-xiang,et al.Research on combined energy dissipators of flaring gate piers of the shatuo hydropower station[J].China Rural Water&Hydropower,2008(7):106-109.
[6]牛坤,把多铎,梁宗祥.莲花台水电站宽尾墩联合消能工的应用研究[J].水力发电,2011,37(2):84-86.NIU Kun,BA Duo-duo,LIANG Zong-xiang.Research on combined energy dissipator with flaring pier for lianhuatai hydropower station[J].Water Power,2011,37(2):84-86.
[7]谢省宗,吴一红,陈文学.我国高坝泄洪消能新技术的研究和创新[J].水利学报,2016,47(3):324-336.XIE Sheng-zong,WU Yi-hong,CHEN Wen-xue.New technology and innovation on flood discharge and energy dissipation of high dams in China[J].Journal of Hydraulic Engineering,2016,47(3):324-336.
[8]李福田,刘沛清,许唯临,等.高拱坝表孔宽尾墩对泄洪能力影响的试验研究[J].水利学报,2003,34(11):0043-0047.LI Fu-tian,LIU Pei-qing,XU Wei-lin,et al.Experimental study on effect of flaring piers on weir discharge capacity in high arch dam[J].Journal of Hydraulic Engineering,2003,34(11):0043-0047.
[9]李乃稳,许唯临,刘超,等.高拱坝表孔宽尾墩水力特性试验研究[J].水力发电学报,2012,31(2):56-61.LI Nai-wen,XU Wei-lin,LIU Chao,et al.Experimental study on hydraulic characteristics of flaring gate piers of surface spillway in the high arch dam[J].Journal of Hydroelectric Engineering,2012,31(2):56-61.
[10]曾华.不同体型宽尾墩的水力特性比较研究[D].四川大学,成都,中国,2006.ZENG Hua.Research on hydraulic characteristics of different faring gate piers[D].Sichuan University,Chengdu,China,2006.
[11]田振华,杨具瑞,罗晶,等.X、Y型宽尾墩水力特性研究[J].人民长江,2009,40(24):48-51.TIAN Zhen-hua,YANG Ju-rui,LUO Jing,et al.Hydraulic characteristics of X-shape and Y-shape flaring gate piers[J].Yangtze River.2009,40(24):48-51.
[12]张挺,伍超,莫政宇,等.X型和Y型宽尾墩水力特性对比研究[J].水利学报,2007,38(10):1207-1213.ZHANG Ting,WU Chao,MO Zheng-yu,et al.Comparison on hydraulic characteristics of X-shape and Y-shape flaring gate piers[J].Journal of Hydraulic Engineering,2007,38(10):1207-1213.
[13]王波,伍平,陈云良.X型与Y型宽尾墩流道内水流特性研究[J].四川大学学报(工程科学版),2012,44(3):1-6.WANG Bo,WU Ping,CHEN Yun-liang.Hydraulics of flow in gate chamber with X-shaped and Y-shaped flaring gate piers[J].Journal of Sichuan University(Engineering Science Edition),2012,44(3):1-6.
[14]石昊,祝云宪,杨峰,等.齿坎式宽尾墩消能特性CFD模拟[J].水电能源科学,2017,35(10):108-111.SHI Hao,ZHU Yun-xian,YANG Feng,et al.CFDsimulation of dissipation characteristics for multiple Slit-type energy dissipater[J].Water Resources and Power,2017,35(10):108-111.
[15]董宗师,王均星,张文传,等.低Fr数非完全宽尾墩消能特性研究[J].四川大学学报(工程科学版),2016,48(5):9-15.DONG Zong-shi,WANG Jun-xing,ZHANGWen-chuan,et al.Study on dissipation characteristics of incomplete flaring gate pier with low froude number[J].Journal of Sichuan University(Engineering Science Edition),2016,48(5):9-15.
[16]周招,王均星,梁砚,等.深尾水消力池非完全宽尾墩消能实验研究[J].水科学进展,2017,28(5):729-737.ZHOU Zhao,WANG Jun-xing,LIANG Yan,et al.Study on incompletely flaring gate pier energy dissipation in deep tail water stilling basin[J].Advances in Water Science,2017,28(5):729-737.
[17]王海云,戴光清,杨庆,等.低水头、大单宽流量泄洪消能方式研究[J].水力发电,2006,32(8):25-26.WANG Hai-yun,DAI Guang-qing,YANG Qing,et al.Research and test for energy dissipation form of low head,large-unite discharge flood discharging[J].Water Power,2006,32(8):25-26.
[18]周喜德,殷彤,雷云华,等.低Fr数宽尾墩消力池流场3维数值模拟[J].四川大学学报(工程科学版),2010,42(6):17-24.ZHOU Xi-de,YIN Tong,LEI Yun-hua,et al.3Dnumerical simulation of turbulent flow with lower fr number in stilling basin with flaring gate pier[J].Journal of Sichuan University(Engineering Science Edition),2010,42(6):17-24.
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