水庫概況
八河(he)水庫(ku)位于山東省(sheng)威海榮成市,始(shi)建于1978年,是(shi)一(yi)(yi)座大型海灣水庫(ku),地處(chu)王連(lian)河(he)下游八河(he)港灣處(chu),控制流域面積256平方千米(mi),原設計總庫(ku)容4570萬立(li)方米(mi),調(diao)節庫(ku)容890萬立(li)方米(mi),死(si)庫(ku)容140萬立(li)方米(mi),工程標準(zhun)為百年一(yi)(yi)遇洪(hong)水設計,五(wu)百年一(yi)(yi)遇洪(hong)水校(xiao)核。
2000年(nian)水(shui)(shui)(shui)(shui)利部批(pi)準榮(rong)成(cheng)市(shi)八(ba)(ba)河水(shui)(shui)(shui)(shui)庫(ku)(ku)(ku)擴建(jian)工(gong)程(cheng)項目建(jian)議書,2001年(nian)6月15日山(shan)東(dong)省(sheng)計委與山(shan)東(dong)省(sheng)水(shui)(shui)(shui)(shui)利廳以(yi)魯水(shui)(shui)(shui)(shui)重點[2001]588號文批(pi)復了榮(rong)成(cheng)市(shi)八(ba)(ba)河水(shui)(shui)(shui)(shui)庫(ku)(ku)(ku)擴建(jian)工(gong)程(cheng)初步設(she)計,八(ba)(ba)河水(shui)(shui)(shui)(shui)庫(ku)(ku)(ku)擴建(jian)工(gong)程(cheng)包(bao)括主(zhu)(zhu)壩(ba)、副壩(ba)、溢洪閘(zha)三個單(dan)位(wei)工(gong)程(cheng),工(gong)程(cheng)等別(bie)為(wei)Ⅱ等,主(zhu)(zhu)要建(jian)筑物(wu)級別(bie)為(wei)二級。擴建(jian)后的八(ba)(ba)河水(shui)(shui)(shui)(shui)庫(ku)(ku)(ku)防洪標準為(wei)五十年(nian)一遇(yu)(yu)洪水(shui)(shui)(shui)(shui)設(she)計,三百年(nian)一遇(yu)(yu)洪水(shui)(shui)(shui)(shui)校核;設(she)計總庫(ku)(ku)(ku)容為(wei)1.06億立方(fang)米(mi)(mi)(mi) ,校核洪水(shui)(shui)(shui)(shui)位(wei)7.05米(mi)(mi)(mi)(黃海高(gao)程(cheng),下同);調(diao)節(jie)庫(ku)(ku)(ku)容7105.0萬(wan)(wan)立方(fang)米(mi)(mi)(mi),正常蓄水(shui)(shui)(shui)(shui)位(wei)6.10米(mi)(mi)(mi);死(si)庫(ku)(ku)(ku)容1145.0萬(wan)(wan)立方(fang)米(mi)(mi)(mi),死(si)水(shui)(shui)(shui)(shui)位(wei)1.90米(mi)(mi)(mi)。城市(shi)供(gong)(gong)水(shui)(shui)(shui)(shui)規模為(wei)每日4.0萬(wan)(wan)噸,多年(nian)平(ping)均(jun)供(gong)(gong)水(shui)(shui)(shui)(shui)量1394.0萬(wan)(wan)立方(fang)米(mi)(mi)(mi),供(gong)(gong)水(shui)(shui)(shui)(shui)保(bao)證(zheng)率95%;農業供(gong)(gong)水(shui)(shui)(shui)(shui)保(bao)證(zheng)灌溉面積10.0萬(wan)(wan)畝,多年(nian)平(ping)均(jun)供(gong)(gong)水(shui)(shui)(shui)(shui)量1652.0萬(wan)(wan)立方(fang)米(mi)(mi)(mi),供(gong)(gong)水(shui)(shui)(shui)(shui)保(bao)證(zheng)率50%。
為有效緩解榮(rong)(rong)成(cheng)市水(shui)(shui)(shui)(shui)資源緊缺(que)狀況的需要,同時滿足(zu)現(xian)代化(hua)水(shui)(shui)(shui)(shui)網(wang)和水(shui)(shui)(shui)(shui)生態文明城市建設的需要,榮(rong)(rong)成(cheng)計(ji)劃(hua)在保(bao)證水(shui)(shui)(shui)(shui)庫(ku)(ku)安全的前提下,適度抬(tai)高(gao)(gao)水(shui)(shui)(shui)(shui)庫(ku)(ku)蓄水(shui)(shui)(shui)(shui)位(wei),擴大(da)庫(ku)(ku)容。目前八(ba)河水(shui)(shui)(shui)(shui)庫(ku)(ku)的警戒水(shui)(shui)(shui)(shui)位(wei)是2.5米,此次擴容工(gong)(gong)(gong)程(cheng)采取(qu)抬(tai)田(tian)方式將(jiang)蓄水(shui)(shui)(shui)(shui)位(wei)提高(gao)(gao)至4.5米,大(da)壩、溢洪閘等(deng)主體(ti)工(gong)(gong)(gong)程(cheng)無需改造(zao)。抬(tai)田(tian)工(gong)(gong)(gong)程(cheng)主要是將(jiang)處于(yu)淹(yan)沒(mei)(mei)區(qu)(qu)的耕(geng)(geng)(geng)地普遍抬(tai)高(gao)(gao),并開辟(pi)新的耕(geng)(geng)(geng)地,并配套完善的灌溉、排水(shui)(shui)(shui)(shui)設施,形成(cheng)“旱(han)能灌、澇能排”的高(gao)(gao)標(biao)準農田(tian)。抬(tai)田(tian)工(gong)(gong)(gong)程(cheng)在許(xu)多水(shui)(shui)(shui)(shui)利樞(shu)紐地區(qu)(qu)已經取(qu)得成(cheng)功,有效減(jian)少(shao)了耕(geng)(geng)(geng)地淹(yan)沒(mei)(mei)。據介紹,待各(ge)項前期工(gong)(gong)(gong)作籌備好后,該工(gong)(gong)(gong)程(cheng)就開工(gong)(gong)(gong),預(yu)計(ji)工(gong)(gong)(gong)期為1年 ,將(jiang)于(yu)2016年1月完工(gong)(gong)(gong)。
水庫效益
八(ba)(ba)河(he)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku)位于(yu)崖(ya)頭城區和石(shi)島(dao)城區之間(jian),坐(zuo)落于(yu)小落河(he)、王連(lian)河(he)下(xia)(xia)游入(ru)海口,原八(ba)(ba)河(he)港灣處。往(wang)返于(yu)兩城區時,市民(min)會途(tu)經(jing)八(ba)(ba)河(he)港大橋,橋下(xia)(xia)就是(shi)八(ba)(ba)河(he)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku)的(de)泄(xie)洪閘門。該水(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku)1975年(nian)12月(yue)動工(gong)興建(jian),1978年(nian)建(jian)成中(zhong)型(xing)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku),2001年(nian)實施(shi)了擴建(jian)工(gong)程,2006年(nian)5月(yue)省水(shui)(shui)(shui)(shui)(shui)(shui)(shui)利廳(ting)對八(ba)(ba)河(he)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku)擴建(jian)工(gong)程進行了竣(jun)工(gong)驗收。八(ba)(ba)河(he)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku)目(mu)前是(shi)一座集城市供(gong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)、灌(guan)溉、養殖(zhi)等綜合利用(yong)為一體的(de)大型(xing)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku),也是(shi)榮成目(mu)前唯一的(de)大型(xing)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku)。如今的(de)八(ba)(ba)河(he)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku)是(shi)石(shi)島(dao)城區重要的(de)生(sheng)產生(sheng)活(huo)用(yong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)源地,并為滕家鎮(zhen)、嶗山(shan)街(jie)道(dao)、王連(lian)街(jie)道(dao)等鎮(zhen)街(jie)提(ti)供(gong)農田灌(guan)溉用(yong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)。