眾(zhong)興水庫(ku)位于肥東(dong)縣(xian)城北(bei)15千米(mi),東(dong)經117度(du)26秒(miao),北(bei)緯32度(du)01秒(miao),店埠河(he)上游,屬巢湖(hu)水系(xi)南淝河(he)支流,是淠史杭(hang)灌(guan)區滁(chu)河(he)干(gan)渠(qu)上的反(fan)調節水庫(ku),控制流域面積114平方千米(mi),總庫(ku)容9948萬(wan)立方米(mi)。樞紐工程由攔河(he)壩,進(jin)水閘、節制閘、泄(xie)洪涵洞、非常溢洪道組成。
水(shui)(shui)(shui)庫樞紐設計灌溉(gai)(gai)面積為上游(you)提水(shui)(shui)(shui)灌溉(gai)(gai)的(de)(de)眾(zhong)(zhong)興站、高塘站31.44萬(wan)(wan)畝,滁(chu)河干(gan)渠自流灌溉(gai)(gai)4萬(wan)(wan)畝。年均農業(ye)灌溉(gai)(gai)水(shui)(shui)(shui)量(liang)達1937萬(wan)(wan)立方(fang)米。同時,眾(zhong)(zhong)興水(shui)(shui)(shui)庫又承擔著肥(fei)東(dong)縣城(cheng)和合(he)肥(fei)市龍崗工業(ye)區20萬(wan)(wan)居民(min)的(de)(de)生活用(yong)(yong)水(shui)(shui)(shui)和合(he)肥(fei)二電廠,合(he)肥(fei)鐵路樞紐等工業(ye)企業(ye)供(gong)水(shui)(shui)(shui)任(ren)務,年均供(gong)水(shui)(shui)(shui)量(liang)達1344萬(wan)(wan)立方(fang)米。下游(you)保護(hu)肥(fei)東(dong)縣城(cheng),撮鎮(zhen)鎮(zhen)等人口30萬(wan)(wan)人,百余家(jia)工業(ye)企業(ye)。淮南鐵路、寧西(xi)鐵路2.2千米,合(he)寧、合(he)徐(xu)、合(he)巢蕪(wu)高速公路2千米,對肥(fei)東(dong)縣和合(he)肥(fei)市的(de)(de)社(she)會經濟發展(zhan),起著舉足輕重的(de)(de)作用(yong)(yong)。
水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku)建(jian)于1958年(nian)(nian),竣(jun)工(gong)于1972年(nian)(nian);庫(ku)(ku)區(qu)多年(nian)(nian)均降水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)量(liang)900毫米(mi)(mi)(mi)(mi)(mi)(mi),設計洪水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)為(wei)(wei)(wei)(wei)百(bai)年(nian)(nian)一(yi)(yi)(yi)遇(yu),洪水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)位為(wei)(wei)(wei)(wei)46.38米(mi)(mi)(mi)(mi)(mi)(mi);校(xiao)(xiao)核(he)洪水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)為(wei)(wei)(wei)(wei)五千年(nian)(nian)一(yi)(yi)(yi)遇(yu),洪水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)位47.27米(mi)(mi)(mi)(mi)(mi)(mi),興(xing)(xing)利(li)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)位為(wei)(wei)(wei)(wei)45.6米(mi)(mi)(mi)(mi)(mi)(mi),興(xing)(xing)利(li)庫(ku)(ku)容6850萬立方米(mi)(mi)(mi)(mi)(mi)(mi),死水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)位為(wei)(wei)(wei)(wei)39.0米(mi)(mi)(mi)(mi)(mi)(mi),庫(ku)(ku)容為(wei)(wei)(wei)(wei)660萬立方米(mi)(mi)(mi)(mi)(mi)(mi)。攔河壩(ba)(ba)為(wei)(wei)(wei)(wei)均質土壩(ba)(ba),壩(ba)(ba)長3180米(mi)(mi)(mi)(mi)(mi)(mi),最大(da)壩(ba)(ba)高(gao)(gao)(gao)(gao)26米(mi)(mi)(mi)(mi)(mi)(mi),平均壩(ba)(ba)高(gao)(gao)(gao)(gao)14米(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)頂寬(kuan)5.5米(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)頂高(gao)(gao)(gao)(gao)程(cheng)(cheng)49.2米(mi)(mi)(mi)(mi)(mi)(mi),大(da)壩(ba)(ba)迎(ying)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)坡1:3,背(bei)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)坡1:2.5~4,防(fang)浪(lang)墻高(gao)(gao)(gao)(gao)1.1米(mi)(mi)(mi)(mi)(mi)(mi),墻頂高(gao)(gao)(gao)(gao)程(cheng)(cheng)50.3米(mi)(mi)(mi)(mi)(mi)(mi)。進(jin)(放)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)閘兩孔(kong),尺(chi)寸為(wei)(wei)(wei)(wei)2.5*3.0,底板(ban)高(gao)(gao)(gao)(gao)程(cheng)(cheng)42.5米(mi)(mi)(mi)(mi)(mi)(mi),最大(da)放水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)流(liu)量(liang)25秒(miao)立方米(mi)(mi)(mi)(mi)(mi)(mi);泄洪涵洞(dong)(dong)為(wei)(wei)(wei)(wei)穿壩(ba)(ba)建(jian)筑物,2孔(kong)尺(chi)寸為(wei)(wei)(wei)(wei)2.5*2.75米(mi)(mi)(mi)(mi)(mi)(mi),底板(ban)高(gao)(gao)(gao)(gao)程(cheng)(cheng)33米(mi)(mi)(mi)(mi)(mi)(mi),校(xiao)(xiao)核(he)泄洪流(liu)量(liang)169秒(miao)立方米(mi)(mi)(mi)(mi)(mi)(mi);非(fei)(fei)常溢(yi)洪道為(wei)(wei)(wei)(wei)實用堰,堰頂高(gao)(gao)(gao)(gao)程(cheng)(cheng)46.7米(mi)(mi)(mi)(mi)(mi)(mi),寬(kuan)200米(mi)(mi)(mi)(mi)(mi)(mi),校(xiao)(xiao)核(he)泄洪流(liu)量(liang)138秒(miao)立方米(mi)(mi)(mi)(mi)(mi)(mi)。水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku)工(gong)程(cheng)(cheng)建(jian)成于特(te)殊年(nian)(nian)代不免遺留質量(liang)隱患。1975年(nian)(nian)8月河南大(da)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)后,在(zai)大(da)壩(ba)(ba)東側(ce)開挖200米(mi)(mi)(mi)(mi)(mi)(mi),臨時非(fei)(fei)常溢(yi)洪道。1980年(nian)(nian)蓄水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)位達45.50米(mi)(mi)(mi)(mi)(mi)(mi),發(fa)現大(da)壩(ba)(ba)下(xia)游坡明顯滲(shen)漏(lou);1980年(nian)(nian)7月和1981年(nian)(nian)元月兩次對(dui)眾興(xing)(xing)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku)上下(xia)壩(ba)(ba)進(jin)行錐探(tan)灌(guan)漿(jiang)后滲(shen)漏(lou)現象有所(suo)減少;1980年(nian)(nian)7月,1987年(nian)(nian)7月,1989年(nian)(nian)7月先后在(zai)上壩(ba)(ba)背(bei)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)坡發(fa)生滑坡,后經治理(li)恢復(fu)(fu)正常運行;1990年(nian)(nian)4月在(zai)泄洪涵洞(dong)(dong)東側(ce)壩(ba)(ba)腳發(fa)現滲(shen)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)孔(kong),最大(da)滲(shen)漏(lou)量(liang)0.33升(sheng)/秒(miao),后該段做導滲(shen)排水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)體(ti)。2001年(nian)(nian)4月安全鑒定時發(fa)現泄洪涵洞(dong)(dong)左側(ce)第一(yi)(yi)(yi)級(ji)平臺高(gao)(gao)(gao)(gao)程(cheng)(cheng)在(zai)40.50米(mi)(mi)(mi)(mi)(mi)(mi),右側(ce)在(zai)第三(san)級(ji)平臺高(gao)(gao)(gao)(gao)程(cheng)(cheng)39米(mi)(mi)(mi)(mi)(mi)(mi),有漏(lou)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)孔(kong)出露,涵洞(dong)(dong)拱涵沉降縫(feng)多處有白(bai)色(se)或黃色(se)流(liu)巖體(ti)沉積及滲(shen)漏(lou)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)溢(yi)出,特(te)別是豎(shu)井段與涵洞(dong)(dong)身沉降縫(feng)高(gao)(gao)(gao)(gao)程(cheng)(cheng)33.00-38.00米(mi)(mi)(mi)(mi)(mi)(mi)處發(fa)現明顯的黃泥(ni)巴滲(shen)出。2001年(nian)(nian)9月水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)利(li)部大(da)壩(ba)(ba)安全管理(li)中心以(yi)壩(ba)(ba)函[2001]1236號(hao)文對(dui)經專家(jia)復(fu)(fu)核(he)的“三(san)類壩(ba)(ba)”確認,2002年(nian)(nian)省水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)利(li)廳(ting)以(yi)皖水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)基[2002]176號(hao)文批(pi)復(fu)(fu)對(dui)眾興(xing)(xing)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku)進(jin)行除險加固,批(pi)復(fu)(fu)投(tou)資2960萬元,加固工(gong)程(cheng)(cheng)已于2002年(nian)(nian)11月14日(ri)開工(gong),于2004年(nian)(nian)5月竣(jun)工(gong)。