簡介
皎口水(shui)(shui)(shui)庫所在河(he)流――樟溪(xi),是甬江(jiang)水(shui)(shui)(shui)系奉化江(jiang)上(shang)游的主要支流之(zhi)一(yi),發源(yuan)于四明山對(dui)崗嶺東(dong)部蓮花村,主流自(zi)西南向東(dong)北(bei)流經(jing)(jing)北(bei)溪(xi)、李家(jia)坑(keng)、周公(gong)宅、杜岙、大(da)(da)皎等(deng)地(di),與(yu)小皎溪(xi)匯合后出皎口水(shui)(shui)(shui)庫,并折向東(dong)南流經(jing)(jing)章水(shui)(shui)(shui)鎮和鄞(yin)江(jiang)鎮,再由(you)鄞(yin)江(jiang)向東(dong)入奉化江(jiang)、鄞(yin)江(jiang)鎮以(yi)上(shang)集水(shui)(shui)(shui)面積(ji)(ji)348.7平(ping)方(fang)公(gong)里(li),主流長58.4 Km,其中(zhong)已蓄水(shui)(shui)(shui)的周公(gong)宅水(shui)(shui)(shui)庫壩址集水(shui)(shui)(shui)面積(ji)(ji)132 平(ping)方(fang)公(gong)里(li),主流長27.75 Km,流域地(di)形主要為(wei)(wei)低山及(ji)丘陵(ling),山嶺高(gao)程一(yi)般在300~900之(zhi)間,最(zui)高(gao)峰(feng)為(wei)(wei)976米(mi)(mi),地(di)勢自(zi)西南向北(bei)傾(qing)斜,河(he)道落差(cha)較大(da)(da),源(yuan)短流急,流域植(zhi)被良好(hao),水(shui)(shui)(shui)土(tu)保持較好(hao)。土(tu)壤(rang)主要為(wei)(wei)紅壤(rang)及(ji)黃壤(rang),海拔200米(mi)(mi)以(yi)下為(wei)(wei)紅壤(rang),500米(mi)(mi)以(yi)上(shang)為(wei)(wei)黃壤(rang),其中(zhong)間為(wei)(wei)紅黃壤(rang)亞類土(tu)壤(rang)并與(yu)紅壤(rang)穿插。
氣候
本流域屬亞熱帶(dai)季(ji)(ji)(ji)(ji)(ji)風(feng)(feng)氣(qi)候區,總的(de)(de)(de)氣(qi)候特征是:冬(dong)夏季(ji)(ji)(ji)(ji)(ji)風(feng)(feng)交(jiao)替顯(xian)著(zhu),年(nian)(nian)(nian)(nian)溫(wen)適中,四季(ji)(ji)(ji)(ji)(ji)分明(ming),雨(yu)(yu)(yu)(yu)量(liang)(liang)豐沛(pei),日(ri)照(zhao)充(chong)足,流域多(duo)年(nian)(nian)(nian)(nian)平均降(jiang)(jiang)雨(yu)(yu)(yu)(yu)量(liang)(liang)1781mm,多(duo)年(nian)(nian)(nian)(nian)平均雨(yu)(yu)(yu)(yu)日(ri)157日(ri),最多(duo)185日(ri),最少(shao)年(nian)(nian)(nian)(nian)126日(ri),降(jiang)(jiang)雨(yu)(yu)(yu)(yu)量(liang)(liang)時空分布不均,年(nian)(nian)(nian)(nian)際、年(nian)(nian)(nian)(nian)內變化顯(xian)著(zhu),實測最豐年(nian)(nian)(nian)(nian)降(jiang)(jiang)雨(yu)(yu)(yu)(yu)量(liang)(liang)2225 mm(1981年(nian)(nian)(nian)(nian)),最枯年(nian)(nian)(nian)(nian)降(jiang)(jiang)雨(yu)(yu)(yu)(yu)量(liang)(liang)982.7 mm(1967年(nian)(nian)(nian)(nian)),豐枯年(nian)(nian)(nian)(nian)降(jiang)(jiang)雨(yu)(yu)(yu)(yu)量(liang)(liang)之(zhi)比(bi)為2.3倍。本地3、4月(yue)份是西北季(ji)(ji)(ji)(ji)(ji)風(feng)(feng)減退和(he)(he)東南季(ji)(ji)(ji)(ji)(ji)風(feng)(feng)開始增強期,冷(leng)暖空氣(qi)交(jiao)匯,形成綿綿春雨(yu)(yu)(yu)(yu),4月(yue)中旬至7月(yue)中旬,夏季(ji)(ji)(ji)(ji)(ji)風(feng)(feng)的(de)(de)(de)暖氣(qi)流與南下的(de)(de)(de)冷(leng)空氣(qi)相遇,本地有持(chi)續時間較長的(de)(de)(de)鋒(feng)面雨(yu)(yu)(yu)(yu)、陰(yin)雨(yu)(yu)(yu)(yu)連綿,降(jiang)(jiang)水集(ji)中,俗稱(cheng)梅(mei)雨(yu)(yu)(yu)(yu);夏秋季(ji)(ji)(ji)(ji)(ji)常受(shou)(shou)副(fu)高壓脊控(kong)制,降(jiang)(jiang)水主要為臺風(feng)(feng)暴雨(yu)(yu)(yu)(yu)和(he)(he)局部雷陣(zhen)雨(yu)(yu)(yu)(yu),若夏秋季(ji)(ji)(ji)(ji)(ji)受(shou)(shou)臺風(feng)(feng)和(he)(he)熱帶(dai)風(feng)(feng)暴影響(xiang)較少(shao),則(ze)易(yi)造(zao)成高溫(wen)干旱,11月(yue)至翌年(nian)(nian)(nian)(nian)2月(yue),受(shou)(shou)冷(leng)高壓控(kong)制,天氣(qi)以晴(qing)冷(leng)為主,雨(yu)(yu)(yu)(yu)量(liang)(liang)較少(shao)。
周邊環境
流(liu)域內現有水(shui)(shui)(shui)利工(gong)程(cheng)較(jiao)(jiao)少,總庫(ku)(ku)容(rong)(rong)在100萬立(li)方(fang)(fang)米(mi)以(yi)上(shang)的水(shui)(shui)(shui)庫(ku)(ku)有周公(gong)(gong)宅(zhai)(zhai)水(shui)(shui)(shui)庫(ku)(ku)和榧(fei)樹(shu)潭(tan)水(shui)(shui)(shui)庫(ku)(ku),周公(gong)(gong)宅(zhai)(zhai)水(shui)(shui)(shui)庫(ku)(ku)建(jian)于(yu)2003年(nian),總庫(ku)(ku)容(rong)(rong)11180萬立(li)方(fang)(fang)米(mi),正(zheng)常蓄水(shui)(shui)(shui)庫(ku)(ku)容(rong)(rong)9570萬立(li)方(fang)(fang)米(mi),榧(fei)樹(shu)潭(tan)水(shui)(shui)(shui)庫(ku)(ku)建(jian)于(yu)1991年(nian),總庫(ku)(ku)容(rong)(rong)514萬立(li)方(fang)(fang)米(mi),正(zheng)常庫(ku)(ku)容(rong)(rong)220萬立(li)方(fang)(fang)米(mi),上(shang)游河(he)道坡陡流(liu)急,下游河(he)道坡度較(jiao)(jiao)為平(ping)緩(huan),流(liu)域內植被較(jiao)(jiao)好,人類活動影響較(jiao)(jiao)小。
功用
皎(jiao)口(kou)水(shui)(shui)(shui)庫(ku)是一(yi)座以防洪(hong)、灌溉為主(zhu),結合發電(dian)、養魚(yu)、供水(shui)(shui)(shui)的綜(zong)合利(li)用的大(da)(二)型水(shui)(shui)(shui)利(li)工(gong)(gong)程(cheng)(cheng),水(shui)(shui)(shui)庫(ku)于(yu)1970年(nian)(nian)5月(yue)動(dong)工(gong)(gong)興(xing)建(jian),1973年(nian)(nian)5月(yue)封孔蓄(xu)水(shui)(shui)(shui),1975年(nian)(nian)1月(yue)主(zhu)體(ti)工(gong)(gong)程(cheng)(cheng)完工(gong)(gong),1980年(nian)(nian)6月(yue)電(dian)站(zhan)三臺機(ji)組全部投入運行,1980年(nian)(nian)12月(yue)省水(shui)(shui)(shui)利(li)廳組織對皎(jiao)口(kou)水(shui)(shui)(shui)庫(ku)進行竣工(gong)(gong)驗收,1998年(nian)(nian)機(ji)組容量(liang)從(cong)原來(lai)3×1250千瓦(wa)增至(zhi)3×1600千瓦(wa),保壩工(gong)(gong)程(cheng)(cheng)于(yu)1984年(nian)(nian)10月(yue)動(dong)工(gong)(gong),1988年(nian)(nian)10月(yue)底完工(gong)(gong),1990年(nian)(nian)11月(yue)通過保壩工(gong)(gong)程(cheng)(cheng)驗收,水(shui)(shui)(shui)庫(ku)集水(shui)(shui)(shui)面積259平方公里,總(zong)庫(ku)容1.198億立方米,樞紐(niu)工(gong)(gong)程(cheng)(cheng)由攔河(he)大(da)壩、壩體(ti)泄(xie)洪(hong)洞、壩頂溢(yi)洪(hong)道、發電(dian)輸水(shui)(shui)(shui)洞和壩后式電(dian)站(zhan)組成,皎(jiao)口(kou)水(shui)(shui)(shui)庫(ku)屬于(yu)Ⅱ等工(gong)(gong)程(cheng)(cheng),大(da)壩溢(yi)洪(hong)道、泄(xie)洪(hong)洞、發電(dian)輸水(shui)(shui)(shui)洞按(an)2級建(jian)筑(zhu)物(wu)(wu)設計(ji),電(dian)站(zhan)按(an)四級建(jian)筑(zhu)物(wu)(wu)設計(ji),設計(ji)洪(hong)水(shui)(shui)(shui)為百年(nian)(nian)一(yi)遇,校核洪(hong)水(shui)(shui)(shui)二千年(nian)(nian)一(yi)遇。
修繕
1984年至1988年根據(ju)水(shui)利部頒發的《水(shui)利水(shui)電樞紐工程等級劃分及設(she)(she)計(ji)標準》及省(sheng)水(shui)利廳下(xia)達(da)的浙水(shui)法(fa)(78)第(di)520號(hao)文要求,對皎(jiao)口水(shui)庫進行保壩(ba)(ba)工程,主(zhu)要項目壩(ba)(ba)體由原78.0米(mi)(mi)高程升至79.4米(mi)(mi),加高1.4米(mi)(mi),壩(ba)(ba)頂上游面(mian)設(she)(she)混凝土防浪墻,墻高1.2米(mi)(mi);壩(ba)(ba)頂加寬(kuan)5米(mi)(mi),達(da)到10米(mi)(mi);溢流壩(ba)(ba)段工作橋(qiao)(兼交(jiao)通橋(qiao))抬(tai)高0.6米(mi)(mi),橋(qiao)面(mian)增寬(kuan)3.2米(mi)(mi);新(xin)(xin)建(jian)改建(jian)啟(qi)閉機室;更新(xin)(xin)設(she)(she)計(ji)制作安裝6扇弧(hu)型閘門,并改制啟(qi)閉設(she)(she)備。經過保壩(ba)(ba)工程,最大壩(ba)(ba)高達(da)到67.4米(mi)(mi),總庫容達(da)到1.198億立方(fang)米(mi)(mi)。
浙江(jiang)省水(shui)(shui)(shui)(shui)(shui)利(li)(li)(li)廳浙水(shui)(shui)(shui)(shui)(shui)管52號(hao)文(wen)《關(guan)于下(xia)達牛(niu)頭山水(shui)(shui)(shui)(shui)(shui)庫等水(shui)(shui)(shui)(shui)(shui)庫大壩(ba)安(an)(an)(an)全鑒(jian)(jian)定工(gong)(gong)(gong)作的(de)通知》,皎(jiao)口(kou)(kou)(kou)水(shui)(shui)(shui)(shui)(shui)庫列入2003年(nian)(nian)安(an)(an)(an)鑒(jian)(jian)計(ji)劃,根(gen)據文(wen)件精(jing)神,鄞州(zhou)區水(shui)(shui)(shui)(shui)(shui)利(li)(li)(li)局(ju)成立(li)皎(jiao)口(kou)(kou)(kou)水(shui)(shui)(shui)(shui)(shui)庫大壩(ba)安(an)(an)(an)全鑒(jian)(jian)定領導小組,皎(jiao)口(kou)(kou)(kou)水(shui)(shui)(shui)(shui)(shui)庫成立(li)以局(ju)長為(wei)組長的(de)工(gong)(gong)(gong)作班子。按照大綱要求,皎(jiao)口(kou)(kou)(kou)水(shui)(shui)(shui)(shui)(shui)庫管理(li)局(ju)委托(tuo)水(shui)(shui)(shui)(shui)(shui)利(li)(li)(li)部水(shui)(shui)(shui)(shui)(shui)工(gong)(gong)(gong)金屬結(jie)構(gou)質量檢(jian)驗(yan)測試中心(xin)、省水(shui)(shui)(shui)(shui)(shui)利(li)(li)(li)水(shui)(shui)(shui)(shui)(shui)電勘測設計(ji)院、省水(shui)(shui)(shui)(shui)(shui)利(li)(li)(li)河口(kou)(kou)(kou)研究院等設計(ji),科研單位,開展《閘門(men)及啟閉(bi)機安(an)(an)(an)全檢(jian)測報(bao)(bao)(bao)(bao)告(gao)(gao)(gao)》、《泄水(shui)(shui)(shui)(shui)(shui)、輸水(shui)(shui)(shui)(shui)(shui)建筑物安(an)(an)(an)全復核報(bao)(bao)(bao)(bao)告(gao)(gao)(gao)》、《大壩(ba)穩定分(fen)析報(bao)(bao)(bao)(bao)告(gao)(gao)(gao)》、《洪水(shui)(shui)(shui)(shui)(shui)復核報(bao)(bao)(bao)(bao)告(gao)(gao)(gao)》、《大壩(ba)滲流(liu)安(an)(an)(an)全評(ping)價報(bao)(bao)(bao)(bao)告(gao)(gao)(gao)》、《大壩(ba)工(gong)(gong)(gong)程(cheng)質量評(ping)價報(bao)(bao)(bao)(bao)告(gao)(gao)(gao)》、《大壩(ba)應力復核及變形觀(guan)測資料分(fen)析報(bao)(bao)(bao)(bao)告(gao)(gao)(gao)》、《電站機組機電檢(jian)測報(bao)(bao)(bao)(bao)告(gao)(gao)(gao)》、《大壩(ba)安(an)(an)(an)全鑒(jian)(jian)定綜合報(bao)(bao)(bao)(bao)告(gao)(gao)(gao)》等9項(xiang)專(zhuan)題(ti)報(bao)(bao)(bao)(bao)告(gao)(gao)(gao)的(de)檢(jian)測編定工(gong)(gong)(gong)作,至2003年(nian)(nian)底各項(xiang)檢(jian)測及報(bao)(bao)(bao)(bao)告(gao)(gao)(gao)編定工(gong)(gong)(gong)作結(jie)束,2003年(nian)(nian)12月(yue)(yue)下(xia)旬,省水(shui)(shui)(shui)(shui)(shui)利(li)(li)(li)廳組織有部門(men)專(zhuan)家(jia)對(dui)皎(jiao)口(kou)(kou)(kou)水(shui)(shui)(shui)(shui)(shui)庫大壩(ba)進行(xing)安(an)(an)(an)全鑒(jian)(jian)定,2004年(nian)(nian)11月(yue)(yue),經(jing)過專(zhuan)家(jia)組第(di)二(er)會(hui)議,通過《大壩(ba)安(an)(an)(an)全鑒(jian)(jian)定報(bao)(bao)(bao)(bao)告(gao)(gao)(gao)書(shu)》安(an)(an)(an)全鑒(jian)(jian)定結(jie)論,水(shui)(shui)(shui)(shui)(shui)庫安(an)(an)(an)全等級為(wei)二(er)類壩(ba),(具體(ti)內容見附錄大壩(ba)安(an)(an)(an)全鑒(jian)(jian)定報(bao)(bao)(bao)(bao)告(gao)(gao)(gao)書(shu))2005年(nian)(nian)9月(yue)(yue)省水(shui)(shui)(shui)(shui)(shui)利(li)(li)(li)水(shui)(shui)(shui)(shui)(shui)電勘測設計(ji)院完(wan)成《皎(jiao)口(kou)(kou)(kou)水(shui)(shui)(shui)(shui)(shui)庫加(jia)固(gu)(gu)改(gai)(gai)造(zao)初步設計(ji)報(bao)(bao)(bao)(bao)告(gao)(gao)(gao)》2005年(nian)(nian)12月(yue)(yue)經(jing)寧(ning)波市發展和(he)改(gai)(gai)革委員會(hui)批復立(li)項(xiang),區府(fu)已把皎(jiao)口(kou)(kou)(kou)水(shui)(shui)(shui)(shui)(shui)庫加(jia)固(gu)(gu)改(gai)(gai)造(zao)工(gong)(gong)(gong)程(cheng)列入2007年(nian)(nian)水(shui)(shui)(shui)(shui)(shui)利(li)(li)(li)工(gong)(gong)(gong)程(cheng)計(ji)劃。