簡介
水(shui)(shui)(shui)庫(ku)(ku)建(jian)設(she)(she)(she)工(gong)程(cheng)(cheng)(cheng)由原欽州地區水(shui)(shui)(shui)利電力設(she)(she)(she)計(ji)(ji)隊勘(kan)測設(she)(she)(she)計(ji)(ji),報自治區水(shui)(shui)(shui)利電力廳審批后,由原防(fang)城縣負(fu)責組織實施(shi),于1978年(nian)動工(gong)興建(jian),1982年(nian)基本建(jian)成投入運行(xing)(xing)。至(zhi)1990年(nian)底(di),水(shui)(shui)(shui)庫(ku)(ku)工(gong)程(cheng)(cheng)(cheng)完(wan)成總(zong)投資(zi)1301萬元。建(jian)成水(shui)(shui)(shui)庫(ku)(ku)主體工(gong)程(cheng)(cheng)(cheng)建(jian)筑物有(you):主壩(ba)(ba)(ba)(ba)(ba)1座(zuo),為(wei)(wei)均質土(tu)壩(ba)(ba)(ba)(ba)(ba),壩(ba)(ba)(ba)(ba)(ba)頂高程(cheng)(cheng)(cheng)186.50米(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)(ba)頂長(chang)378米(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)(ba)頂寬(kuan)(kuan)(kuan)7米(mi)(mi)(mi)(mi)(mi)(mi)~8米(mi)(mi)(mi)(mi)(mi)(mi),最(zui)(zui)大(da)壩(ba)(ba)(ba)(ba)(ba)高42米(mi)(mi)(mi)(mi)(mi)(mi)。副(fu)壩(ba)(ba)(ba)(ba)(ba)3座(zuo),均位于水(shui)(shui)(shui)庫(ku)(ku)北面那勉溝的分水(shui)(shui)(shui)嶺處(chu),為(wei)(wei)土(tu)壩(ba)(ba)(ba)(ba)(ba)工(gong)程(cheng)(cheng)(cheng)。其(qi)中(zhong)1號(hao)(hao)副(fu)壩(ba)(ba)(ba)(ba)(ba)最(zui)(zui)大(da)壩(ba)(ba)(ba)(ba)(ba)高15.60米(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)(ba)頂寬(kuan)(kuan)(kuan)6米(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)(ba)頂長(chang)172米(mi)(mi)(mi)(mi)(mi)(mi);2號(hao)(hao)副(fu)壩(ba)(ba)(ba)(ba)(ba)最(zui)(zui)大(da)壩(ba)(ba)(ba)(ba)(ba)高6.7米(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)(ba)頂寬(kuan)(kuan)(kuan)6米(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)(ba)頂長(chang)110米(mi)(mi)(mi)(mi)(mi)(mi);3號(hao)(hao)副(fu)壩(ba)(ba)(ba)(ba)(ba)最(zui)(zui)大(da)壩(ba)(ba)(ba)(ba)(ba)高5.70米(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)(ba)頂寬(kuan)(kuan)(kuan)6米(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)(ba)頂長(chang)78米(mi)(mi)(mi)(mi)(mi)(mi)。溢(yi)洪道1座(zuo),位于主壩(ba)(ba)(ba)(ba)(ba)右端,由進水(shui)(shui)(shui)段及閘室、陡(dou)坡(po)、消力池(chi)、尾水(shui)(shui)(shui)渠和護(hu)岸等部分組成。溢(yi)流(liu)(liu)堰頂高程(cheng)(cheng)(cheng)176米(mi)(mi)(mi)(mi)(mi)(mi),設(she)(she)(she)有(you)9米(mi)(mi)(mi)(mi)(mi)(mi)×6米(mi)(mi)(mi)(mi)(mi)(mi)鋼板弧(hu)型(xing)閘門,陡(dou)坡(po)段寬(kuan)(kuan)(kuan)19.60米(mi)(mi)(mi)(mi)(mi)(mi)一(yi)30米(mi)(mi)(mi)(mi)(mi)(mi)。消力池(chi)長(chang)30米(mi)(mi)(mi)(mi)(mi)(mi),寬(kuan)(kuan)(kuan)10米(mi)(mi)(mi)(mi)(mi)(mi)。尾水(shui)(shui)(shui)渠長(chang)240米(mi)(mi)(mi)(mi)(mi)(mi),寬(kuan)(kuan)(kuan)30米(mi)(mi)(mi)(mi)(mi)(mi),最(zui)(zui)大(da)泄洪流(liu)(liu)量(liang)為(wei)(wei)1008立方(fang)(fang)米(mi)(mi)(mi)(mi)(mi)(mi)每(mei)(mei)秒(miao)。輸(shu)水(shui)(shui)(shui)隧洞1孔,位于主壩(ba)(ba)(ba)(ba)(ba)左(zuo)岸,用于灌(guan)溉、發電和水(shui)(shui)(shui)庫(ku)(ku)放空等,洞身長(chang)226.60米(mi)(mi)(mi)(mi)(mi)(mi),洞內(nei)直徑2米(mi)(mi)(mi)(mi)(mi)(mi),鋼筋(jin)混凝土(tu)結構。進水(shui)(shui)(shui)口(kou)底(di)高程(cheng)(cheng)(cheng)155.5米(mi)(mi)(mi)(mi)(mi)(mi),輸(shu)水(shui)(shui)(shui)流(liu)(liu)量(liang)12立方(fang)(fang)米(mi)(mi)(mi)(mi)(mi)(mi)每(mei)(mei)秒(miao)。水(shui)(shui)(shui)庫(ku)(ku)建(jian)有(you)梯級(ji)電站(zhan)(zhan)2座(zuo),總(zong)裝(zhuang)機(ji)容量(liang)5350千瓦。其(qi)中(zhong),小峰(feng)(feng)水(shui)(shui)(shui)電站(zhan)(zhan)(一(yi)級(ji)站(zhan)(zhan))位于小峰(feng)(feng)水(shui)(shui)(shui)庫(ku)(ku)大(da)壩(ba)(ba)(ba)(ba)(ba)下游左(zuo)岸,1978年(nian)興建(jian),1982年(nian)投入運行(xing)(xing)。裝(zhuang)機(ji)2臺(tai)、單(dan)機(ji)容量(liang)800千瓦;江(jiang)口(kou)水(shui)(shui)(shui)電站(zhan)(zhan)(二(er)級(ji)站(zhan)(zhan))位于扶(fu)隆鄉南江(jiang)村,1982年(nian)興建(jian),1985年(nian)建(jian)成,是利用小峰(feng)(feng)電站(zhan)(zhan)的尾水(shui)(shui)(shui)通過9.35公里長(chang)的沿山渠道作為(wei)(wei)水(shui)(shui)(shui)源,設(she)(she)(she)計(ji)(ji)引水(shui)(shui)(shui)流(liu)(liu)量(liang)6立方(fang)(fang)米(mi)(mi)(mi)(mi)(mi)(mi)每(mei)(mei)秒(miao),設(she)(she)(she)計(ji)(ji)水(shui)(shui)(shui)頭落(luo)差74.84米(mi)(mi)(mi)(mi)(mi)(mi)。裝(zhuang)機(ji)3臺(tai)、單(dan)機(ji)容量(liang)1250千瓦, 2、3號(hao)(hao)機(ji)組于1985年(nian)安裝(zhuang)投入運行(xing)(xing);1號(hao)(hao)機(ji)組于1987年(nian)安裝(zhuang)發電。
小(xiao)峰水(shui)(shui)庫建成后運(yun)行初期,由于受(shou)經濟和(he)技術條件(jian)的限制,工(gong)程(cheng)建設標準低,工(gong)程(cheng)存在著質量較差、病險(xian)隱患(huan)多等工(gong)程(cheng)安全問題,被迫(po)降低水(shui)(shui)位進(jin)行運(yun)行。為了(le)確保(bao)人民生命財產(chan)安全,發(fa)揮(hui)水(shui)(shui)庫最大效(xiao)益,自1992年(nian)開(kai)始,按設計(ji)要(yao)求對水(shui)(shui)庫主(zhu)體工(gong)程(cheng)已進(jin)行2次(ci)全面(mian)除(chu)險(xian)加(jia)固(gu),累計(ji)投入除(chu)險(xian)加(jia)固(gu)資金(jin)6230萬(wan)元(yuan)。 ? ? ? ? ? ? ? ?
第一次除(chu)(chu)險(xian)加固(gu)(gu)(gu)工(gong)程(cheng)(cheng)(cheng)于1992年(nian)動工(gong),1999年(nian)完(wan)工(gong)。工(gong)程(cheng)(cheng)(cheng)項(xiang)目(mu)主(zhu)要(yao)是加固(gu)(gu)(gu)主(zhu)壩(ba)(ba)基(ji)礎、溢(yi)(yi)洪道出口段及(ji)修建進庫公路,投資(zi)1853.00萬元(yuan);第二次除(chu)(chu)險(xian)加固(gu)(gu)(gu)工(gong)程(cheng)(cheng)(cheng)于2002年(nian)動工(gong),2004年(nian)1月(yue)完(wan)工(gong),工(gong)程(cheng)(cheng)(cheng)主(zhu)要(yao)項(xiang)目(mu)有(you)主(zhu)壩(ba)(ba)副壩(ba)(ba)壩(ba)(ba)體(ti)防(fang)(fang)滲,主(zhu)壩(ba)(ba)右壩(ba)(ba)肩(jian)培厚(hou),大壩(ba)(ba)安全監測,溢(yi)(yi)洪道、主(zhu)壩(ba)(ba)副壩(ba)(ba)壩(ba)(ba)體(ti)加固(gu)(gu)(gu),副壩(ba)(ba)防(fang)(fang)汛道路建設(she)等工(gong)程(cheng)(cheng)(cheng),完(wan)成(cheng)投資(zi)4252.00萬元(yuan)。經過2次維修加固(gu)(gu)(gu)后,已基(ji)本消除(chu)(chu)工(gong)程(cheng)(cheng)(cheng)隱患,大大提高了(le)水庫的防(fang)(fang)汛能(neng)力和蓄(xu)水能(neng)力。
小峰水(shui)庫建成(cheng)后(hou),發揮了水(shui)庫防洪、供水(shui)、灌溉和發電等多(duo)方(fang)面(mian)的(de)作用,具有顯著(zhu)的(de)經濟效益和社會(hui)效益。
洪(hong)(hong)方(fang)面。汛前騰(teng)空水庫,預留防洪(hong)(hong)庫容,發(fa)揮水庫蓄洪(hong)(hong)、調節洪(hong)(hong)峰(feng)的(de)功能,提(ti)高水庫下游防城江沿岸鄉鎮(zhen)的(de)防洪(hong)(hong)能力,把洪(hong)(hong)澇災害(hai)損失降到最低限度。
供(gong)水(shui)灌溉方面(mian)。由于防城(cheng)(cheng)江來水(shui)豐枯不均,且相差懸殊,利用水(shui)庫蓄水(shui)每年可(ke)(ke)增加7820萬(wan)立(li)方米(mi)的調節水(shui)量,以豐補(bu)枯進行調節,大(da)大(da)提高(gao)了防城(cheng)(cheng)港(gang)市城(cheng)(cheng)區工業和(he)生(sheng)活用水(shui)的供(gong)水(shui)能力;同時,可(ke)(ke)以擴大(da)和(he)改善農田灌溉面(mian)積18.38萬(wan)畝。
發(fa)(fa)電(dian)(dian)方面。已(yi)建(jian)成梯級水(shui)(shui)電(dian)(dian)站小(xiao)峰水(shui)(shui)電(dian)(dian)站和江口水(shui)(shui)電(dian)(dian)站2座,總裝機容(rong)量5350千(qian)瓦(wa),年(nian)均(jun)發(fa)(fa)電(dian)(dian)量2116萬千(qian)瓦(wa)小(xiao)時,水(shui)(shui)庫為多年(nian)調節水(shui)(shui)庫,水(shui)(shui)電(dian)(dian)站可承擔防城電(dian)(dian)網(wang)的部分(fen)調峰任務(wu),緩解電(dian)(dian)網(wang)峰谷(gu)矛盾和電(dian)(dian)力供需矛盾,為促進地方經濟發(fa)(fa)展發(fa)(fa)揮了積極作用。