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水庫概況

八河水(shui)庫(ku)位于(yu)山東省威海榮成(cheng)市，始建于(yu)1978年(nian)，是(shi)一(yi)座(zuo)大(da)型海灣(wan)水(shui)庫(ku)，地處王(wang)連河下游八河港灣(wan)處，控(kong)制流域面積256平方千米(mi)，原設計總庫(ku)容(rong)4570萬立方米(mi)，調節(jie)庫(ku)容(rong)890萬立方米(mi)，死庫(ku)容(rong)140萬立方米(mi)，工程標準為百年(nian)一(yi)遇(yu)洪(hong)(hong)水(shui)設計，五百年(nian)一(yi)遇(yu)洪(hong)(hong)水(shui)校核。

2000年水(shui)(shui)(shui)(shui)(shui)(shui)(shui)利部(bu)批準榮(rong)(rong)成市(shi)八河水(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)擴(kuo)建(jian)工(gong)程(cheng)(cheng)(cheng)(cheng)項(xiang)目建(jian)議(yi)書，2001年6月15日山東(dong)省(sheng)計(ji)(ji)委與山東(dong)省(sheng)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)利廳以魯水(shui)(shui)(shui)(shui)(shui)(shui)(shui)重點(dian)[2001]588號文批復了(le)榮(rong)(rong)成市(shi)八河水(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)擴(kuo)建(jian)工(gong)程(cheng)(cheng)(cheng)(cheng)初步(bu)設計(ji)(ji)，八河水(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)擴(kuo)建(jian)工(gong)程(cheng)(cheng)(cheng)(cheng)包括主壩、副壩、溢洪閘(zha)三(san)(san)個(ge)單(dan)位工(gong)程(cheng)(cheng)(cheng)(cheng)，工(gong)程(cheng)(cheng)(cheng)(cheng)等別為Ⅱ等，主要建(jian)筑(zhu)物級(ji)別為二(er)級(ji)。擴(kuo)建(jian)后的八河水(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)防洪標準為五十年一遇(yu)(yu)洪水(shui)(shui)(shui)(shui)(shui)(shui)(shui)設計(ji)(ji)，三(san)(san)百年一遇(yu)(yu)洪水(shui)(shui)(shui)(shui)(shui)(shui)(shui)校(xiao)核(he)；設計(ji)(ji)總(zong)庫(ku)容為1.06億立(li)方米(mi) ，校(xiao)核(he)洪水(shui)(shui)(shui)(shui)(shui)(shui)(shui)位7.05米(mi)（黃海高(gao)程(cheng)(cheng)(cheng)(cheng)，下同(tong)）；調節庫(ku)容7105.0萬(wan)(wan)立(li)方米(mi)，正常(chang)蓄(xu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)位6.10米(mi)；死庫(ku)容1145.0萬(wan)(wan)立(li)方米(mi)，死水(shui)(shui)(shui)(shui)(shui)(shui)(shui)位1.90米(mi)。城市(shi)供(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)規模為每日4.0萬(wan)(wan)噸，多年平均供(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)量1394.0萬(wan)(wan)立(li)方米(mi)，供(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)保(bao)證率(lv)95%；農業(ye)供(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)保(bao)證灌(guan)溉面(mian)積10.0萬(wan)(wan)畝，多年平均供(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)量1652.0萬(wan)(wan)立(li)方米(mi)，供(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)保(bao)證率(lv)50%。

為(wei)有效(xiao)(xiao)緩(huan)解(jie)榮成(cheng)(cheng)(cheng)市(shi)水(shui)(shui)資源緊(jin)缺狀況的(de)(de)需(xu)要(yao)，同時滿(man)足現代化水(shui)(shui)網和水(shui)(shui)生態文明城(cheng)市(shi)建設的(de)(de)需(xu)要(yao)，榮成(cheng)(cheng)(cheng)計(ji)劃(hua)在(zai)保證(zheng)水(shui)(shui)庫(ku)安全(quan)的(de)(de)前(qian)提下(xia)，適(shi)度(du)抬(tai)高(gao)水(shui)(shui)庫(ku)蓄水(shui)(shui)位，擴(kuo)大庫(ku)容。目前(qian)八河水(shui)(shui)庫(ku)的(de)(de)警戒水(shui)(shui)位是(shi)2.5米(mi)，此次(ci)擴(kuo)容工(gong)(gong)(gong)程(cheng)采取抬(tai)田(tian)方(fang)式(shi)將蓄水(shui)(shui)位提高(gao)至(zhi)4.5米(mi)，大壩、溢(yi)洪閘(zha)等(deng)主體工(gong)(gong)(gong)程(cheng)無需(xu)改造(zao)。抬(tai)田(tian)工(gong)(gong)(gong)程(cheng)主要(yao)是(shi)將處于淹沒區(qu)的(de)(de)耕地普遍抬(tai)高(gao)，并開(kai)辟(pi)新的(de)(de)耕地，并配套(tao)完(wan)善(shan)的(de)(de)灌溉、排(pai)水(shui)(shui)設施(shi)，形成(cheng)(cheng)(cheng)“旱能灌、澇能排(pai)”的(de)(de)高(gao)標(biao)準農(nong)田(tian)。抬(tai)田(tian)工(gong)(gong)(gong)程(cheng)在(zai)許多水(shui)(shui)利樞(shu)紐地區(qu)已經取得成(cheng)(cheng)(cheng)功，有效(xiao)(xiao)減少了耕地淹沒。據介紹(shao)，待各項前(qian)期工(gong)(gong)(gong)作籌備好(hao)后，該工(gong)(gong)(gong)程(cheng)就(jiu)開(kai)工(gong)(gong)(gong)，預計(ji)工(gong)(gong)(gong)期為(wei)1年 ，將于2016年1月完(wan)工(gong)(gong)(gong)。

水庫效益

八(ba)河(he)水(shui)(shui)(shui)庫(ku)(ku)位(wei)于崖頭城區(qu)和石島城區(qu)之間，坐(zuo)落(luo)于小落(luo)河(he)、王(wang)連河(he)下游入(ru)海(hai)口，原(yuan)八(ba)河(he)港灣(wan)處。往(wang)返于兩(liang)城區(qu)時，市(shi)(shi)民會途(tu)經八(ba)河(he)港大(da)橋，橋下就是(shi)八(ba)河(he)水(shui)(shui)(shui)庫(ku)(ku)的(de)泄洪閘門。該水(shui)(shui)(shui)庫(ku)(ku)1975年12月動工(gong)(gong)興(xing)建(jian)(jian)，1978年建(jian)(jian)成中型水(shui)(shui)(shui)庫(ku)(ku)，2001年實施了擴建(jian)(jian)工(gong)(gong)程(cheng)，2006年5月省水(shui)(shui)(shui)利廳(ting)對八(ba)河(he)水(shui)(shui)(shui)庫(ku)(ku)擴建(jian)(jian)工(gong)(gong)程(cheng)進行了竣工(gong)(gong)驗收。八(ba)河(he)水(shui)(shui)(shui)庫(ku)(ku)目前(qian)是(shi)一座(zuo)集(ji)城市(shi)(shi)供水(shui)(shui)(shui)、灌(guan)溉、養殖等綜合(he)利用(yong)為(wei)一體的(de)大(da)型水(shui)(shui)(shui)庫(ku)(ku)，也是(shi)榮成目前(qian)唯(wei)一的(de)大(da)型水(shui)(shui)(shui)庫(ku)(ku)。如今(jin)的(de)八(ba)河(he)水(shui)(shui)(shui)庫(ku)(ku)是(shi)石島城區(qu)重要(yao)的(de)生產生活用(yong)水(shui)(shui)(shui)水(shui)(shui)(shui)源地，并為(wei)滕(teng)家鎮、嶗(lao)山街道(dao)、王(wang)連街道(dao)等鎮街提供農田灌(guan)溉用(yong)水(shui)(shui)(shui)。