簡介
水(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku)建(jian)設工(gong)(gong)程(cheng)由原(yuan)欽州地(di)區水(shui)(shui)(shui)(shui)(shui)(shui)利電(dian)(dian)力(li)(li)設計(ji)隊勘測設計(ji),報自治(zhi)區水(shui)(shui)(shui)(shui)(shui)(shui)利電(dian)(dian)力(li)(li)廳審批后,由原(yuan)防城(cheng)縣負責(ze)組織實施(shi),于(yu)(yu)(yu)1978年動工(gong)(gong)興(xing)建(jian),1982年基本建(jian)成投(tou)入運(yun)(yun)行(xing)(xing)。至1990年底,水(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku)工(gong)(gong)程(cheng)完成總(zong)投(tou)資1301萬元。建(jian)成水(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku)主(zhu)(zhu)體(ti)工(gong)(gong)程(cheng)建(jian)筑物(wu)有(you):主(zhu)(zhu)壩(ba)(ba)(ba)(ba)(ba)1座,為均質土(tu)壩(ba)(ba)(ba)(ba)(ba),壩(ba)(ba)(ba)(ba)(ba)頂(ding)(ding)高(gao)程(cheng)186.50米(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)(ba)頂(ding)(ding)長(chang)(chang)378米(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)(ba)頂(ding)(ding)寬7米(mi)(mi)(mi)~8米(mi)(mi)(mi),最(zui)(zui)大壩(ba)(ba)(ba)(ba)(ba)高(gao)42米(mi)(mi)(mi)。副(fu)壩(ba)(ba)(ba)(ba)(ba)3座,均位于(yu)(yu)(yu)水(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku)北面那(nei)勉溝的分(fen)水(shui)(shui)(shui)(shui)(shui)(shui)嶺(ling)處,為土(tu)壩(ba)(ba)(ba)(ba)(ba)工(gong)(gong)程(cheng)。其中1號(hao)副(fu)壩(ba)(ba)(ba)(ba)(ba)最(zui)(zui)大壩(ba)(ba)(ba)(ba)(ba)高(gao)15.60米(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)(ba)頂(ding)(ding)寬6米(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)(ba)頂(ding)(ding)長(chang)(chang)172米(mi)(mi)(mi);2號(hao)副(fu)壩(ba)(ba)(ba)(ba)(ba)最(zui)(zui)大壩(ba)(ba)(ba)(ba)(ba)高(gao)6.7米(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)(ba)頂(ding)(ding)寬6米(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)(ba)頂(ding)(ding)長(chang)(chang)110米(mi)(mi)(mi);3號(hao)副(fu)壩(ba)(ba)(ba)(ba)(ba)最(zui)(zui)大壩(ba)(ba)(ba)(ba)(ba)高(gao)5.70米(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)(ba)頂(ding)(ding)寬6米(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)(ba)頂(ding)(ding)長(chang)(chang)78米(mi)(mi)(mi)。溢(yi)洪道(dao)1座,位于(yu)(yu)(yu)主(zhu)(zhu)壩(ba)(ba)(ba)(ba)(ba)右端(duan),由進水(shui)(shui)(shui)(shui)(shui)(shui)段及閘(zha)(zha)室、陡(dou)坡、消(xiao)力(li)(li)池、尾(wei)水(shui)(shui)(shui)(shui)(shui)(shui)渠(qu)和護岸(an)(an)等(deng)部分(fen)組成。溢(yi)流(liu)(liu)堰頂(ding)(ding)高(gao)程(cheng)176米(mi)(mi)(mi),設有(you)9米(mi)(mi)(mi)×6米(mi)(mi)(mi)鋼(gang)板弧型閘(zha)(zha)門,陡(dou)坡段寬19.60米(mi)(mi)(mi)一30米(mi)(mi)(mi)。消(xiao)力(li)(li)池長(chang)(chang)30米(mi)(mi)(mi),寬10米(mi)(mi)(mi)。尾(wei)水(shui)(shui)(shui)(shui)(shui)(shui)渠(qu)長(chang)(chang)240米(mi)(mi)(mi),寬30米(mi)(mi)(mi),最(zui)(zui)大泄洪流(liu)(liu)量為1008立方米(mi)(mi)(mi)每秒。輸水(shui)(shui)(shui)(shui)(shui)(shui)隧(sui)洞(dong)1孔,位于(yu)(yu)(yu)主(zhu)(zhu)壩(ba)(ba)(ba)(ba)(ba)左(zuo)岸(an)(an),用(yong)于(yu)(yu)(yu)灌溉、發電(dian)(dian)和水(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku)放空等(deng),洞(dong)身長(chang)(chang)226.60米(mi)(mi)(mi),洞(dong)內直徑2米(mi)(mi)(mi),鋼(gang)筋混凝土(tu)結構(gou)。進水(shui)(shui)(shui)(shui)(shui)(shui)口(kou)底高(gao)程(cheng)155.5米(mi)(mi)(mi),輸水(shui)(shui)(shui)(shui)(shui)(shui)流(liu)(liu)量12立方米(mi)(mi)(mi)每秒。水(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku)建(jian)有(you)梯級(ji)電(dian)(dian)站(zhan)(zhan)2座,總(zong)裝(zhuang)(zhuang)機(ji)容量5350千(qian)(qian)瓦(wa)。其中,小(xiao)峰水(shui)(shui)(shui)(shui)(shui)(shui)電(dian)(dian)站(zhan)(zhan)(一級(ji)站(zhan)(zhan))位于(yu)(yu)(yu)小(xiao)峰水(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku)大壩(ba)(ba)(ba)(ba)(ba)下(xia)游左(zuo)岸(an)(an),1978年興(xing)建(jian),1982年投(tou)入運(yun)(yun)行(xing)(xing)。裝(zhuang)(zhuang)機(ji)2臺(tai)、單(dan)機(ji)容量800千(qian)(qian)瓦(wa);江口(kou)水(shui)(shui)(shui)(shui)(shui)(shui)電(dian)(dian)站(zhan)(zhan)(二級(ji)站(zhan)(zhan))位于(yu)(yu)(yu)扶隆鄉南江村,1982年興(xing)建(jian),1985年建(jian)成,是利用(yong)小(xiao)峰電(dian)(dian)站(zhan)(zhan)的尾(wei)水(shui)(shui)(shui)(shui)(shui)(shui)通過(guo)9.35公里(li)長(chang)(chang)的沿山渠(qu)道(dao)作(zuo)為水(shui)(shui)(shui)(shui)(shui)(shui)源,設計(ji)引水(shui)(shui)(shui)(shui)(shui)(shui)流(liu)(liu)量6立方米(mi)(mi)(mi)每秒,設計(ji)水(shui)(shui)(shui)(shui)(shui)(shui)頭落(luo)差74.84米(mi)(mi)(mi)。裝(zhuang)(zhuang)機(ji)3臺(tai)、單(dan)機(ji)容量1250千(qian)(qian)瓦(wa), 2、3號(hao)機(ji)組于(yu)(yu)(yu)1985年安裝(zhuang)(zhuang)投(tou)入運(yun)(yun)行(xing)(xing);1號(hao)機(ji)組于(yu)(yu)(yu)1987年安裝(zhuang)(zhuang)發電(dian)(dian)。
小峰水(shui)庫建成后(hou)運(yun)行初期,由(you)于受經濟和(he)技術條件(jian)的(de)限制(zhi),工(gong)程(cheng)建設標準低(di),工(gong)程(cheng)存在著質量較差、病險隱患多等工(gong)程(cheng)安(an)全(quan)(quan)問題,被(bei)迫降(jiang)低(di)水(shui)位(wei)進(jin)行運(yun)行。為了確保人(ren)民生命財產安(an)全(quan)(quan),發(fa)揮水(shui)庫最大效益(yi),自1992年開始,按設計要求對水(shui)庫主(zhu)體工(gong)程(cheng)已進(jin)行2次全(quan)(quan)面(mian)除險加固,累計投入除險加固資(zi)金(jin)6230萬元(yuan)。 ? ? ? ? ? ? ? ?
第(di)(di)一(yi)次(ci)除(chu)險(xian)加固工(gong)(gong)(gong)程于1992年動工(gong)(gong)(gong),1999年完(wan)工(gong)(gong)(gong)。工(gong)(gong)(gong)程項(xiang)(xiang)目主(zhu)要是加固主(zhu)壩(ba)(ba)(ba)(ba)(ba)(ba)基礎、溢(yi)洪道(dao)出(chu)口段(duan)及(ji)修建進(jin)庫(ku)公(gong)路,投資1853.00萬元;第(di)(di)二(er)次(ci)除(chu)險(xian)加固工(gong)(gong)(gong)程于2002年動工(gong)(gong)(gong),2004年1月完(wan)工(gong)(gong)(gong),工(gong)(gong)(gong)程主(zhu)要項(xiang)(xiang)目有(you)主(zhu)壩(ba)(ba)(ba)(ba)(ba)(ba)副壩(ba)(ba)(ba)(ba)(ba)(ba)壩(ba)(ba)(ba)(ba)(ba)(ba)體防滲,主(zhu)壩(ba)(ba)(ba)(ba)(ba)(ba)右壩(ba)(ba)(ba)(ba)(ba)(ba)肩(jian)培厚,大壩(ba)(ba)(ba)(ba)(ba)(ba)安(an)全(quan)監測,溢(yi)洪道(dao)、主(zhu)壩(ba)(ba)(ba)(ba)(ba)(ba)副壩(ba)(ba)(ba)(ba)(ba)(ba)壩(ba)(ba)(ba)(ba)(ba)(ba)體加固,副壩(ba)(ba)(ba)(ba)(ba)(ba)防汛道(dao)路建設等工(gong)(gong)(gong)程,完(wan)成投資4252.00萬元。經(jing)過(guo)2次(ci)維修加固后,已(yi)基本消除(chu)工(gong)(gong)(gong)程隱患,大大提高了水(shui)庫(ku)的防汛能力和蓄水(shui)能力。
小峰水庫建成后,發(fa)揮了水庫防洪、供水、灌溉和發(fa)電等多方面的作用,具(ju)有顯著的經濟效益和社會效益。
洪(hong)方面。汛(xun)前騰空水(shui)庫,預留防(fang)洪(hong)庫容,發(fa)揮水(shui)庫蓄(xu)洪(hong)、調節洪(hong)峰的功(gong)能(neng),提高(gao)水(shui)庫下(xia)游防(fang)城江沿岸鄉鎮的防(fang)洪(hong)能(neng)力,把洪(hong)澇災害損(sun)失降(jiang)到最低限度(du)。
供水(shui)灌溉方面(mian)。由于防(fang)城江(jiang)來水(shui)豐(feng)枯不均(jun),且(qie)相(xiang)差懸殊,利用(yong)(yong)水(shui)庫蓄水(shui)每年(nian)可(ke)(ke)增加(jia)7820萬立方米的調節水(shui)量(liang),以(yi)豐(feng)補枯進行(xing)調節,大(da)大(da)提高了防(fang)城港市(shi)城區工業和(he)生活用(yong)(yong)水(shui)的供水(shui)能力;同時,可(ke)(ke)以(yi)擴大(da)和(he)改善農田(tian)灌溉面(mian)積18.38萬畝。
發(fa)(fa)電(dian)方(fang)面。已建成梯級(ji)水(shui)(shui)電(dian)站小峰(feng)水(shui)(shui)電(dian)站和江(jiang)口水(shui)(shui)電(dian)站2座(zuo),總裝機容量5350千(qian)瓦,年均發(fa)(fa)電(dian)量2116萬千(qian)瓦小時,水(shui)(shui)庫(ku)為多年調(diao)節水(shui)(shui)庫(ku),水(shui)(shui)電(dian)站可承擔防城電(dian)網(wang)的部(bu)分調(diao)峰(feng)任務(wu),緩解(jie)電(dian)網(wang)峰(feng)谷矛盾(dun)和電(dian)力供需矛盾(dun),為促進地方(fang)經濟發(fa)(fa)展(zhan)發(fa)(fa)揮了積極作用。