水庫詳情
樞紐工程由攔河(he)壩(ba)、鋼(gang)(gang)管引水道(dao)和壩(ba)后(hou)廠房、兩岸(an)滑(hua)雪(xue)式溢洪(hong)(hong)道(dao)、一(yi)級(ji)(ji)放空(kong)(kong)(kong)兼泄(xie)洪(hong)(hong)隧(sui)洞(dong)(dong)、二級(ji)(ji)放空(kong)(kong)(kong)隧(sui)洞(dong)(dong)等(deng)建筑物組(zu)成。攔河(he)大壩(ba)為(wei)混(hun)凝(ning)土雙(shuang)曲拱壩(ba)、294米(mi)(mi)(mi)壩(ba)頂(ding)高(gao)(gao)(gao)程,最(zui)(zui)(zui)(zui)大壩(ba)高(gao)(gao)(gao)157米(mi)(mi)(mi),最(zui)(zui)(zui)(zui)大底(di)寬35米(mi)(mi)(mi),頂(ding)寬7米(mi)(mi)(mi),厚高(gao)(gao)(gao)比(bi)為(wei) 0.223,壩(ba)頂(ding)中心弧(hu)長(chang)(chang)438米(mi)(mi)(mi), 最(zui)(zui)(zui)(zui)大中心角(jiao)95°7",最(zui)(zui)(zui)(zui)大內半徑302.3米(mi)(mi)(mi);壩(ba)后(hou)式主(zhu)廠房長(chang)(chang)106米(mi)(mi)(mi),寬23米(mi)(mi)(mi),最(zui)(zui)(zui)(zui)大高(gao)(gao)(gao)度56. 3米(mi)(mi)(mi),安裝(zhuang)4臺單(dan)機(ji)(ji)容量(liang)12.5萬(wan)千(qian)(qian)瓦機(ji)(ji)組(zu),總容量(liang)50萬(wan)千(qian)(qian)瓦,由4條內徑5.2米(mi)(mi)(mi)、進(jin)口工作閘門門孔中心高(gao)(gao)(gao)程221.5米(mi)(mi)(mi)的鋼(gang)(gang)管引水道(dao)供(gong)水,單(dan)機(ji)(ji)引用流(liu)(liu)量(liang)123秒(miao)(miao)立(li)米(mi)(mi)(mi);右(you)岸(an)一(yi)孔、左(zuo)岸(an)兩孔滑(hua)雪(xue)式溢洪(hong)(hong)道(dao)順岸(an)邊(bian)地(di)形(xing)高(gao)(gao)(gao)低布置(zhi),堰頂(ding)高(gao)(gao)(gao)程266米(mi)(mi)(mi),弧(hu)門潛孔啟閉,尺(chi)寸為(wei)10×7.5米(mi)(mi)(mi),全長(chang)(chang)分別(bie)為(wei)117和147米(mi)(mi)(mi),采用挑流(liu)(liu)消(xiao)能(neng),設(she)計(ji)單(dan)孔流(liu)(liu)量(liang)1300秒(miao)(miao)立(li)米(mi)(mi)(mi),單(dan)寬流(liu)(liu)量(liang)130秒(miao)(miao)立(li)米(mi)(mi)(mi);一(yi)級(ji)(ji)放空(kong)(kong)(kong)兼泄(xie)洪(hong)(hong)隧(sui)洞(dong)(dong)布置(zhi)在(zai)左(zuo)岸(an),進(jin)口底(di)板高(gao)(gao)(gao)程222米(mi)(mi)(mi),全長(chang)(chang)527米(mi)(mi)(mi),最(zui)(zui)(zui)(zui)大泄(xie)量(liang)1942秒(miao)(miao)立(li)米(mi)(mi)(mi),遇百年(nian)一(yi)遇洪(hong)(hong)水時參(can)加(jia)泄(xie)洪(hong)(hong);二級(ji)(ji)放空(kong)(kong)(kong)隧(sui)洞(dong)(dong)布置(zhi)在(zai)右(you)岸(an),全長(chang)(chang) 671.35米(mi)(mi)(mi),進(jin)口底(di)板高(gao)(gao)(gao)程170米(mi)(mi)(mi),最(zui)(zui)(zui)(zui)大出流(liu)(liu)量(liang)1540秒(miao)(miao)立(li)米(mi)(mi)(mi),該洞(dong)(dong)在(zai)施工后(hou)期參(can)加(jia)導(dao)流(liu)(liu)。兩洞(dong)(dong)放空(kong)(kong)(kong)時間均為(wei)一(yi)個月(yue)。
功能作用
東江(jiang)水(shui)(shui)(shui)(shui)庫(ku)(ku)是一(yi)個以(yi)(yi)發電(dian)(dian)為(wei)主,兼有(you)防洪(hong)、航(hang)運、城鎮工業及生活用(yong)(yong)水(shui)(shui)(shui)(shui)等綜(zong)合利用(yong)(yong)的(de)大型水(shui)(shui)(shui)(shui)電(dian)(dian)工程。水(shui)(shui)(shui)(shui)庫(ku)(ku)壩高(gao)庫(ku)(ku)大,調(diao)節(jie)性能(neng)好。總(zong)庫(ku)(ku)容(rong)(rong)91.5億(yi)立(li)米,當正常高(gao)水(shui)(shui)(shui)(shui)位285 米時(shi)(shi),相應庫(ku)(ku)容(rong)(rong)有(you) 81.2億(yi)立(li)米(其中有(you)效庫(ku)(ku)容(rong)(rong)56.7億(yi)立(li)米)。庫(ku)(ku)容(rong)(rong)系數1.25,為(wei)多(duo)年調(diao)節(jie)水(shui)(shui)(shui)(shui)庫(ku)(ku)。電(dian)(dian)站(zhan)多(duo)年平均發電(dian)(dian)量(liang)13.2億(yi)千瓦小時(shi)(shi),在(zai)華中電(dian)(dian)力系統中主要(yao)擔負調(diao)峰任務;水(shui)(shui)(shui)(shui)庫(ku)(ku)建成(cheng)后可使耒水(shui)(shui)(shui)(shui)下(xia)(xia)游(you)1.07萬畝農田(tian)免除洪(hong)水(shui)(shui)(shui)(shui)危害,同時(shi)(shi)可以(yi)(yi)提高(gao)下(xia)(xia)游(you)已建白漁潭、遙田(tian)等水(shui)(shui)(shui)(shui)電(dian)(dian)站(zhan)的(de)保證出力和京廣(guang)鐵路的(de)防洪(hong)標(biao)準;水(shui)(shui)(shui)(shui)庫(ku)(ku)回水(shui)(shui)(shui)(shui)總(zong)長(chang) 150公里對改善上下(xia)(xia)游(you)航(hang)運都十(shi)分有(you)利。為(wei)避免機(ji)組(zu)停機(ji)或長(chang)時(shi)(shi)間低負荷運行影(ying)響下(xia)(xia)游(you)工農業用(yong)(yong)水(shui)(shui)(shui)(shui),在(zai)其下(xia)(xia)游(you)9 公里處修建一(yi)座小東江(jiang)水(shui)(shui)(shui)(shui)電(dian)(dian)站(zhan),進(jin)行反調(diao)節(jie)。
建設時間
東江水(shui)庫工(gong)程(cheng)曾(ceng)于1958年動(dong)工(gong),至1961年初停建。1978年4月(yue)(yue)復(fu)工(gong),1980年11月(yue)(yue)截流(liu)合龍(long),1986年8月(yue)(yue)下閘蓄水(shui),1987年11月(yue)(yue)第一臺機投(tou)產發(fa)電,1992年樞紐工(gong)程(cheng)全面竣工(gong)。