大(da)河(he)口(kou)水(shui)電(dian)站位于(yu)重慶市酉陽縣境(jing)內阿蓬(peng)江(jiang)大(da)灘(tan)河(he)段,是(shi)(shi)阿蓬(peng)江(jiang)梯級開(kai)發(fa)的(de)第八個梯級水(shui)利樞紐工程,是(shi)(shi)流(liu)域內九個梯級開(kai)發(fa)最 大(da)的(de)一個。壩(ba)址控制流(liu)域面積4619km2,總庫容1.15億m3,總裝機7.5萬KW, 年發(fa)電(dian)量3.75億KW·h。是(shi)(shi)一座(zuo)以發(fa)電(dian)為(wei)主,兼有防洪、灌(guan)溉、養殖(zhi)、旅游開(kai)發(fa)等綜合效益(yi)的(de)水(shui)電(dian)工程。
電站(zhan)樞紐工(gong)程由攔河壩(ba)(ba)、發電廠(chang)房、戶內式(shi)開關(guan)站(zhan)等組成(cheng)。攔河壩(ba)(ba)為(wei)混凝土空腹(fu)重力壩(ba)(ba),壩(ba)(ba)頂泄(xie)洪,壩(ba)(ba)高84.5m,壩(ba)(ba)頂長(chang)393.3m。左右岸非(fei)溢(yi)(yi)流(liu)重力壩(ba)(ba)長(chang)分別為(wei)35.5m、15.5m,空腹(fu)溢(yi)(yi)流(liu)重力壩(ba)(ba)長(chang)86m,溢(yi)(yi)流(liu)前緣總長(chang)55m,設(she)有(you)開 敞式(shi)溢(yi)(yi)流(liu)壩(ba)(ba)5孔,每孔寬11m,堰頂設(she)弧形工(gong)作門和平(ping)板檢修(xiu)門,分別由懸吊(diao)式(shi)液壓 啟閉機(ji)和壩(ba)(ba)頂雙向門機(ji)控制。主廠(chang)房為(wei)壩(ba)(ba)內式(shi)廠(chang)房,位(wei)于空腹(fu)溢(yi)(yi)流(liu)壩(ba)(ba)內,長(chang)80m,寬 22m,高32.59m,安裝3臺(tai)單(dan)機(ji)容(rong)量(liang)為(wei)2.5萬KW的水(shui)輪發電機(ji)組。
電(dian)站(zhan)工(gong)(gong)(gong)程(cheng)(cheng)于(yu)1993年4月經國家計委批準立項,由(you)(you)香港中貫集團和(he)黔江區(qu)烏江電(dian)力集團合資建(jian)(jian)設(she)。工(gong)(gong)(gong)程(cheng)(cheng)建(jian)(jian)設(she)管理(li)實行業主負責(ze)制(zhi),由(you)(you)大河(he)口(kou)(kou)(kou)水電(dian)工(gong)(gong)(gong)程(cheng)(cheng)指(zhi) 揮部負責(ze)工(gong)(gong)(gong)程(cheng)(cheng)建(jian)(jian)設(she)管理(li)。1992年通過(guo)議標(biao)方式,由(you)(you)八局承擔施(shi)(shi)工(gong)(gong)(gong)導流洞(dong)開挖和(he)人工(gong)(gong)(gong)砂石系統 工(gong)(gong)(gong)程(cheng)(cheng)。1993年7月主體(ti)工(gong)(gong)(gong)程(cheng)(cheng)及安裝工(gong)(gong)(gong)程(cheng)(cheng),經評標(biao)推薦,并經決標(biao)領導小組批準確定,亦由(you)(you)八局承建(jian)(jian),并與大河(he)口(kou)(kou)(kou)水電(dian)工(gong)(gong)(gong)程(cheng)(cheng)指(zhi)揮部簽定《四川(chuan)省(sheng)黔江地區(qu)大河(he)口(kou)(kou)(kou)水電(dian)站(zhan) 第三標(biao)主體(ti)工(gong)(gong)(gong)程(cheng)(cheng)土(tu)建(jian)(jian)及安裝工(gong)(gong)(gong)程(cheng)(cheng)合同協議書》,由(you)(you)大河(he)口(kou)(kou)(kou)施(shi)(shi)工(gong)(gong)(gong)局負責(ze)施(shi)(shi)工(gong)(gong)(gong)。?
該工程實物工程總量:土石方開挖(wa)53萬(wan)(wan)m3、土石方回(hui)填7萬(wan)(wan)m3、混凝土35.23萬(wan)(wan)m3、 漿(jiang)砌(qi)石2.4萬(wan)(wan)m3、帷幕灌漿(jiang)43658m、固結灌漿(jiang)2256m、金屬(shu)結構制(zhi)作安裝(zhuang)1147.5t。199 3年(nian)11月(yue)開工,1994年(nian)1月(yue)河(he)床截流(liu),導流(liu)洞通水,1996年(nian)12月(yue)首臺(tai)機(ji)組發(fa)電,1998年(nian)竣工。