簡介
水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)建(jian)(jian)(jian)設(she)(she)工(gong)(gong)(gong)程(cheng)由原欽州地區水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)利電(dian)力設(she)(she)計(ji)隊勘(kan)測(ce)設(she)(she)計(ji),報(bao)自治區水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)利電(dian)力廳(ting)審批后,由原防城縣負責組織實(shi)施,于(yu)(yu)(yu)(yu)1978年(nian)(nian)動工(gong)(gong)(gong)興(xing)(xing)建(jian)(jian)(jian),1982年(nian)(nian)基本建(jian)(jian)(jian)成(cheng)投入(ru)運(yun)行。至1990年(nian)(nian)底(di),水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)工(gong)(gong)(gong)程(cheng)完成(cheng)總投資1301萬(wan)元。建(jian)(jian)(jian)成(cheng)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)主(zhu)體工(gong)(gong)(gong)程(cheng)建(jian)(jian)(jian)筑(zhu)物有:主(zhu)壩(ba)(ba)(ba)(ba)1座(zuo),為(wei)均質土(tu)壩(ba)(ba)(ba)(ba),壩(ba)(ba)(ba)(ba)頂(ding)(ding)高(gao)(gao)程(cheng)186.50米(mi)(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)頂(ding)(ding)長(chang)(chang)378米(mi)(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)頂(ding)(ding)寬(kuan)(kuan)(kuan)7米(mi)(mi)(mi)(mi)(mi)(mi)(mi)~8米(mi)(mi)(mi)(mi)(mi)(mi)(mi),最(zui)大(da)(da)壩(ba)(ba)(ba)(ba)高(gao)(gao)42米(mi)(mi)(mi)(mi)(mi)(mi)(mi)。副(fu)壩(ba)(ba)(ba)(ba)3座(zuo),均位(wei)于(yu)(yu)(yu)(yu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)北(bei)面那勉溝的分(fen)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)嶺處,為(wei)土(tu)壩(ba)(ba)(ba)(ba)工(gong)(gong)(gong)程(cheng)。其(qi)(qi)中(zhong)1號(hao)副(fu)壩(ba)(ba)(ba)(ba)最(zui)大(da)(da)壩(ba)(ba)(ba)(ba)高(gao)(gao)15.60米(mi)(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)頂(ding)(ding)寬(kuan)(kuan)(kuan)6米(mi)(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)頂(ding)(ding)長(chang)(chang)172米(mi)(mi)(mi)(mi)(mi)(mi)(mi);2號(hao)副(fu)壩(ba)(ba)(ba)(ba)最(zui)大(da)(da)壩(ba)(ba)(ba)(ba)高(gao)(gao)6.7米(mi)(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)頂(ding)(ding)寬(kuan)(kuan)(kuan)6米(mi)(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)頂(ding)(ding)長(chang)(chang)110米(mi)(mi)(mi)(mi)(mi)(mi)(mi);3號(hao)副(fu)壩(ba)(ba)(ba)(ba)最(zui)大(da)(da)壩(ba)(ba)(ba)(ba)高(gao)(gao)5.70米(mi)(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)頂(ding)(ding)寬(kuan)(kuan)(kuan)6米(mi)(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)頂(ding)(ding)長(chang)(chang)78米(mi)(mi)(mi)(mi)(mi)(mi)(mi)。溢洪道1座(zuo),位(wei)于(yu)(yu)(yu)(yu)主(zhu)壩(ba)(ba)(ba)(ba)右端(duan),由進(jin)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)段及閘(zha)(zha)室、陡(dou)坡、消力池(chi)、尾(wei)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)渠和護岸等部分(fen)組成(cheng)。溢流堰頂(ding)(ding)高(gao)(gao)程(cheng)176米(mi)(mi)(mi)(mi)(mi)(mi)(mi),設(she)(she)有9米(mi)(mi)(mi)(mi)(mi)(mi)(mi)×6米(mi)(mi)(mi)(mi)(mi)(mi)(mi)鋼板(ban)弧(hu)型閘(zha)(zha)門,陡(dou)坡段寬(kuan)(kuan)(kuan)19.60米(mi)(mi)(mi)(mi)(mi)(mi)(mi)一30米(mi)(mi)(mi)(mi)(mi)(mi)(mi)。消力池(chi)長(chang)(chang)30米(mi)(mi)(mi)(mi)(mi)(mi)(mi),寬(kuan)(kuan)(kuan)10米(mi)(mi)(mi)(mi)(mi)(mi)(mi)。尾(wei)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)渠長(chang)(chang)240米(mi)(mi)(mi)(mi)(mi)(mi)(mi),寬(kuan)(kuan)(kuan)30米(mi)(mi)(mi)(mi)(mi)(mi)(mi),最(zui)大(da)(da)泄洪流量(liang)為(wei)1008立(li)方米(mi)(mi)(mi)(mi)(mi)(mi)(mi)每秒(miao)。輸(shu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)隧洞(dong)1孔(kong),位(wei)于(yu)(yu)(yu)(yu)主(zhu)壩(ba)(ba)(ba)(ba)左(zuo)岸,用于(yu)(yu)(yu)(yu)灌(guan)溉、發電(dian)和水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)放空等,洞(dong)身長(chang)(chang)226.60米(mi)(mi)(mi)(mi)(mi)(mi)(mi),洞(dong)內直徑2米(mi)(mi)(mi)(mi)(mi)(mi)(mi),鋼筋混凝(ning)土(tu)結(jie)構(gou)。進(jin)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)口底(di)高(gao)(gao)程(cheng)155.5米(mi)(mi)(mi)(mi)(mi)(mi)(mi),輸(shu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)流量(liang)12立(li)方米(mi)(mi)(mi)(mi)(mi)(mi)(mi)每秒(miao)。水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)建(jian)(jian)(jian)有梯級電(dian)站2座(zuo),總裝(zhuang)(zhuang)機(ji)容量(liang)5350千(qian)瓦。其(qi)(qi)中(zhong),小(xiao)峰水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)電(dian)站(一級站)位(wei)于(yu)(yu)(yu)(yu)小(xiao)峰水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)大(da)(da)壩(ba)(ba)(ba)(ba)下(xia)游左(zuo)岸,1978年(nian)(nian)興(xing)(xing)建(jian)(jian)(jian),1982年(nian)(nian)投入(ru)運(yun)行。裝(zhuang)(zhuang)機(ji)2臺(tai)、單機(ji)容量(liang)800千(qian)瓦;江(jiang)口水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)電(dian)站(二級站)位(wei)于(yu)(yu)(yu)(yu)扶隆(long)鄉南(nan)江(jiang)村,1982年(nian)(nian)興(xing)(xing)建(jian)(jian)(jian),1985年(nian)(nian)建(jian)(jian)(jian)成(cheng),是利用小(xiao)峰電(dian)站的尾(wei)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)通(tong)過9.35公(gong)里長(chang)(chang)的沿山渠道作為(wei)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)源,設(she)(she)計(ji)引水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)流量(liang)6立(li)方米(mi)(mi)(mi)(mi)(mi)(mi)(mi)每秒(miao),設(she)(she)計(ji)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)頭(tou)落差74.84米(mi)(mi)(mi)(mi)(mi)(mi)(mi)。裝(zhuang)(zhuang)機(ji)3臺(tai)、單機(ji)容量(liang)1250千(qian)瓦, 2、3號(hao)機(ji)組于(yu)(yu)(yu)(yu)1985年(nian)(nian)安裝(zhuang)(zhuang)投入(ru)運(yun)行;1號(hao)機(ji)組于(yu)(yu)(yu)(yu)1987年(nian)(nian)安裝(zhuang)(zhuang)發電(dian)。
小峰水庫建(jian)成(cheng)后運行(xing)(xing)初期,由于受(shou)經濟和技術條件的限制(zhi),工(gong)(gong)程(cheng)建(jian)設標準低,工(gong)(gong)程(cheng)存在著質量較差、病(bing)險(xian)隱患多等(deng)工(gong)(gong)程(cheng)安全問(wen)題,被迫降(jiang)低水位進(jin)行(xing)(xing)運行(xing)(xing)。為了確保(bao)人(ren)民(min)生命財產安全,發揮水庫最大(da)效益,自1992年(nian)開始(shi),按設計要求對水庫主體工(gong)(gong)程(cheng)已進(jin)行(xing)(xing)2次(ci)全面(mian)除(chu)險(xian)加固,累計投入除(chu)險(xian)加固資金6230萬元。 ? ? ? ? ? ? ? ?
第一(yi)次除(chu)險(xian)(xian)加(jia)固(gu)工(gong)程(cheng)(cheng)于(yu)1992年(nian)(nian)動(dong)工(gong),1999年(nian)(nian)完工(gong)。工(gong)程(cheng)(cheng)項目主(zhu)要(yao)(yao)是(shi)加(jia)固(gu)主(zhu)壩(ba)(ba)(ba)(ba)(ba)基(ji)礎、溢(yi)洪(hong)道(dao)出口(kou)段及修(xiu)建進庫公路,投(tou)資1853.00萬元(yuan);第二次除(chu)險(xian)(xian)加(jia)固(gu)工(gong)程(cheng)(cheng)于(yu)2002年(nian)(nian)動(dong)工(gong),2004年(nian)(nian)1月完工(gong),工(gong)程(cheng)(cheng)主(zhu)要(yao)(yao)項目有主(zhu)壩(ba)(ba)(ba)(ba)(ba)副壩(ba)(ba)(ba)(ba)(ba)壩(ba)(ba)(ba)(ba)(ba)體防滲,主(zhu)壩(ba)(ba)(ba)(ba)(ba)右壩(ba)(ba)(ba)(ba)(ba)肩培厚,大(da)壩(ba)(ba)(ba)(ba)(ba)安全(quan)監測,溢(yi)洪(hong)道(dao)、主(zhu)壩(ba)(ba)(ba)(ba)(ba)副壩(ba)(ba)(ba)(ba)(ba)壩(ba)(ba)(ba)(ba)(ba)體加(jia)固(gu),副壩(ba)(ba)(ba)(ba)(ba)防汛道(dao)路建設等工(gong)程(cheng)(cheng),完成投(tou)資4252.00萬元(yuan)。經過(guo)2次維修(xiu)加(jia)固(gu)后(hou),已基(ji)本消(xiao)除(chu)工(gong)程(cheng)(cheng)隱(yin)患,大(da)大(da)提高了(le)水(shui)庫的防汛能(neng)力和蓄(xu)水(shui)能(neng)力。
小峰水庫建成后,發揮了水庫防洪(hong)、供水、灌溉和(he)發電等多方面(mian)的(de)作用(yong),具有顯著的(de)經濟效(xiao)益和(he)社會效(xiao)益。
洪(hong)(hong)(hong)方(fang)面。汛前騰空水(shui)庫(ku),預留(liu)防洪(hong)(hong)(hong)庫(ku)容,發揮水(shui)庫(ku)蓄洪(hong)(hong)(hong)、調節洪(hong)(hong)(hong)峰的功能(neng),提高水(shui)庫(ku)下游(you)防城江沿(yan)岸鄉鎮的防洪(hong)(hong)(hong)能(neng)力,把洪(hong)(hong)(hong)澇(lao)災害損失降到最低限度。
供(gong)水(shui)(shui)灌溉(gai)方面。由于防(fang)(fang)城江來水(shui)(shui)豐(feng)枯不均,且相差懸殊,利用(yong)水(shui)(shui)庫(ku)蓄水(shui)(shui)每年可(ke)增加(jia)7820萬立方米的調(diao)節水(shui)(shui)量,以豐(feng)補枯進行調(diao)節,大大提高了(le)防(fang)(fang)城港市城區工(gong)業(ye)和生活(huo)用(yong)水(shui)(shui)的供(gong)水(shui)(shui)能力;同(tong)時,可(ke)以擴大和改(gai)善農田灌溉(gai)面積18.38萬畝。
發電(dian)(dian)方面。已建成(cheng)梯級(ji)水(shui)電(dian)(dian)站小峰(feng)水(shui)電(dian)(dian)站和江口水(shui)電(dian)(dian)站2座,總裝(zhuang)機容量5350千瓦,年(nian)均發電(dian)(dian)量2116萬千瓦小時(shi),水(shui)庫為多年(nian)調節水(shui)庫,水(shui)電(dian)(dian)站可承擔防城電(dian)(dian)網(wang)的部分(fen)調峰(feng)任務,緩解電(dian)(dian)網(wang)峰(feng)谷矛盾和電(dian)(dian)力供需(xu)矛盾,為促進地方經濟發展(zhan)發揮(hui)了積極作用。