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簡介

水(shui)(shui)(shui)(shui)(shui)庫(ku)建(jian)設(she)工(gong)程(cheng)由原欽州地區水(shui)(shui)(shui)(shui)(shui)利(li)電(dian)(dian)(dian)(dian)(dian)力設(she)計隊勘(kan)測設(she)計，報自(zi)治區水(shui)(shui)(shui)(shui)(shui)利(li)電(dian)(dian)(dian)(dian)(dian)力廳審批后，由原防城縣負責組織(zhi)實(shi)施，于(yu)(yu)(yu)(yu)1978年(nian)動工(gong)興(xing)建(jian)，1982年(nian)基本建(jian)成(cheng)(cheng)投入運(yun)(yun)行(xing)。至1990年(nian)底，水(shui)(shui)(shui)(shui)(shui)庫(ku)工(gong)程(cheng)完成(cheng)(cheng)總(zong)投資1301萬元。建(jian)成(cheng)(cheng)水(shui)(shui)(shui)(shui)(shui)庫(ku)主(zhu)體工(gong)程(cheng)建(jian)筑物有：主(zhu)壩(ba)(ba)(ba)(ba)1座(zuo)(zuo)，為(wei)均(jun)質土(tu)壩(ba)(ba)(ba)(ba)，壩(ba)(ba)(ba)(ba)頂(ding)(ding)高(gao)程(cheng)186.50米(mi)(mi)(mi)(mi)，壩(ba)(ba)(ba)(ba)頂(ding)(ding)長378米(mi)(mi)(mi)(mi)，壩(ba)(ba)(ba)(ba)頂(ding)(ding)寬(kuan)7米(mi)(mi)(mi)(mi)～8米(mi)(mi)(mi)(mi)，最(zui)(zui)大(da)壩(ba)(ba)(ba)(ba)高(gao)42米(mi)(mi)(mi)(mi)。副(fu)壩(ba)(ba)(ba)(ba)3座(zuo)(zuo)，均(jun)位(wei)于(yu)(yu)(yu)(yu)水(shui)(shui)(shui)(shui)(shui)庫(ku)北(bei)面那勉溝的分水(shui)(shui)(shui)(shui)(shui)嶺(ling)處，為(wei)土(tu)壩(ba)(ba)(ba)(ba)工(gong)程(cheng)。其中(zhong)1號(hao)(hao)(hao)副(fu)壩(ba)(ba)(ba)(ba)最(zui)(zui)大(da)壩(ba)(ba)(ba)(ba)高(gao)15.60米(mi)(mi)(mi)(mi)，壩(ba)(ba)(ba)(ba)頂(ding)(ding)寬(kuan)6米(mi)(mi)(mi)(mi)，壩(ba)(ba)(ba)(ba)頂(ding)(ding)長172米(mi)(mi)(mi)(mi)；2號(hao)(hao)(hao)副(fu)壩(ba)(ba)(ba)(ba)最(zui)(zui)大(da)壩(ba)(ba)(ba)(ba)高(gao)6.7米(mi)(mi)(mi)(mi)，壩(ba)(ba)(ba)(ba)頂(ding)(ding)寬(kuan)6米(mi)(mi)(mi)(mi)，壩(ba)(ba)(ba)(ba)頂(ding)(ding)長110米(mi)(mi)(mi)(mi)；3號(hao)(hao)(hao)副(fu)壩(ba)(ba)(ba)(ba)最(zui)(zui)大(da)壩(ba)(ba)(ba)(ba)高(gao)5.70米(mi)(mi)(mi)(mi)，壩(ba)(ba)(ba)(ba)頂(ding)(ding)寬(kuan)6米(mi)(mi)(mi)(mi)，壩(ba)(ba)(ba)(ba)頂(ding)(ding)長78米(mi)(mi)(mi)(mi)。溢(yi)洪道(dao)1座(zuo)(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)段(duan)及閘(zha)室、陡坡、消力池、尾水(shui)(shui)(shui)(shui)(shui)渠和護岸(an)等(deng)部(bu)分組成(cheng)(cheng)。溢(yi)流(liu)堰(yan)頂(ding)(ding)高(gao)程(cheng)176米(mi)(mi)(mi)(mi),設(she)有9米(mi)(mi)(mi)(mi)×6米(mi)(mi)(mi)(mi)鋼(gang)板弧型閘(zha)門(men)，陡坡段(duan)寬(kuan)19.60米(mi)(mi)(mi)(mi)一30米(mi)(mi)(mi)(mi)。消力池長30米(mi)(mi)(mi)(mi)，寬(kuan)10米(mi)(mi)(mi)(mi)。尾水(shui)(shui)(shui)(shui)(shui)渠長240米(mi)(mi)(mi)(mi)，寬(kuan)30米(mi)(mi)(mi)(mi)，最(zui)(zui)大(da)泄(xie)洪流(liu)量(liang)為(wei)1008立方米(mi)(mi)(mi)(mi)每(mei)秒(miao)。輸水(shui)(shui)(shui)(shui)(shui)隧洞1孔(kong)，位(wei)于(yu)(yu)(yu)(yu)主(zhu)壩(ba)(ba)(ba)(ba)左(zuo)岸(an)，用于(yu)(yu)(yu)(yu)灌溉、發電(dian)(dian)(dian)(dian)(dian)和水(shui)(shui)(shui)(shui)(shui)庫(ku)放空等(deng)，洞身長226.60米(mi)(mi)(mi)(mi)，洞內直徑2米(mi)(mi)(mi)(mi)，鋼(gang)筋混凝土(tu)結構。進(jin)水(shui)(shui)(shui)(shui)(shui)口底高(gao)程(cheng)155.5米(mi)(mi)(mi)(mi)，輸水(shui)(shui)(shui)(shui)(shui)流(liu)量(liang)12立方米(mi)(mi)(mi)(mi)每(mei)秒(miao)。水(shui)(shui)(shui)(shui)(shui)庫(ku)建(jian)有梯級(ji)電(dian)(dian)(dian)(dian)(dian)站(zhan)(zhan)2座(zuo)(zuo)，總(zong)裝(zhuang)(zhuang)機(ji)(ji)(ji)容量(liang)5350千(qian)瓦(wa)(wa)(wa)。其中(zhong)，小峰水(shui)(shui)(shui)(shui)(shui)電(dian)(dian)(dian)(dian)(dian)站(zhan)(zhan)（一級(ji)站(zhan)(zhan)）位(wei)于(yu)(yu)(yu)(yu)小峰水(shui)(shui)(shui)(shui)(shui)庫(ku)大(da)壩(ba)(ba)(ba)(ba)下游左(zuo)岸(an)，1978年(nian)興(xing)建(jian)，1982年(nian)投入運(yun)(yun)行(xing)。裝(zhuang)(zhuang)機(ji)(ji)(ji)2臺(tai)(tai)、單(dan)機(ji)(ji)(ji)容量(liang)800千(qian)瓦(wa)(wa)(wa)；江口水(shui)(shui)(shui)(shui)(shui)電(dian)(dian)(dian)(dian)(dian)站(zhan)(zhan)（二級(ji)站(zhan)(zhan)）位(wei)于(yu)(yu)(yu)(yu)扶隆鄉南江村，1982年(nian)興(xing)建(jian)，1985年(nian)建(jian)成(cheng)(cheng)，是利(li)用小峰電(dian)(dian)(dian)(dian)(dian)站(zhan)(zhan)的尾水(shui)(shui)(shui)(shui)(shui)通過9.35公里(li)長的沿山渠道(dao)作(zuo)為(wei)水(shui)(shui)(shui)(shui)(shui)源，設(she)計引水(shui)(shui)(shui)(shui)(shui)流(liu)量(liang)6立方米(mi)(mi)(mi)(mi)每(mei)秒(miao)，設(she)計水(shui)(shui)(shui)(shui)(shui)頭落差(cha)74.84米(mi)(mi)(mi)(mi)。裝(zhuang)(zhuang)機(ji)(ji)(ji)3臺(tai)(tai)、單(dan)機(ji)(ji)(ji)容量(liang)1250千(qian)瓦(wa)(wa)(wa)， 2、3號(hao)(hao)(hao)機(ji)(ji)(ji)組于(yu)(yu)(yu)(yu)1985年(nian)安(an)裝(zhuang)(zhuang)投入運(yun)(yun)行(xing)；1號(hao)(hao)(hao)機(ji)(ji)(ji)組于(yu)(yu)(yu)(yu)1987年(nian)安(an)裝(zhuang)(zhuang)發電(dian)(dian)(dian)(dian)(dian)。

小峰(feng)水(shui)庫建成(cheng)后運行(xing)(xing)初期(qi)，由(you)于受(shou)經(jing)濟和技術條件的(de)限制，工(gong)(gong)程(cheng)(cheng)建設標準(zhun)低，工(gong)(gong)程(cheng)(cheng)存(cun)在著(zhu)質量較(jiao)差、病險隱患多等工(gong)(gong)程(cheng)(cheng)安全問題，被迫降低水(shui)位進行(xing)(xing)運行(xing)(xing)。為了確(que)保人民生命財產安全，發揮水(shui)庫最大效益(yi)，自1992年開(kai)始，按(an)設計要(yao)求對水(shui)庫主體工(gong)(gong)程(cheng)(cheng)已進行(xing)(xing)2次全面除險加(jia)固(gu)，累(lei)計投入除險加(jia)固(gu)資金(jin)6230萬元。 ? ? ? ? ? ? ? ?

第一(yi)次除險(xian)加固(gu)工(gong)(gong)(gong)(gong)程(cheng)于(yu)1992年(nian)動(dong)工(gong)(gong)(gong)(gong)，1999年(nian)完(wan)(wan)(wan)工(gong)(gong)(gong)(gong)。工(gong)(gong)(gong)(gong)程(cheng)項目主(zhu)(zhu)要是加固(gu)主(zhu)(zhu)壩(ba)(ba)(ba)基礎、溢(yi)洪道出口段及(ji)修建進庫(ku)公路，投資(zi)(zi)1853.00萬(wan)元(yuan)(yuan)；第二次除險(xian)加固(gu)工(gong)(gong)(gong)(gong)程(cheng)于(yu)2002年(nian)動(dong)工(gong)(gong)(gong)(gong)，2004年(nian)1月(yue)完(wan)(wan)(wan)工(gong)(gong)(gong)(gong)，工(gong)(gong)(gong)(gong)程(cheng)主(zhu)(zhu)要項目有主(zhu)(zhu)壩(ba)(ba)(ba)副(fu)壩(ba)(ba)(ba)壩(ba)(ba)(ba)體防(fang)滲，主(zhu)(zhu)壩(ba)(ba)(ba)右壩(ba)(ba)(ba)肩培(pei)厚(hou)，大(da)壩(ba)(ba)(ba)安全監測，溢(yi)洪道、主(zhu)(zhu)壩(ba)(ba)(ba)副(fu)壩(ba)(ba)(ba)壩(ba)(ba)(ba)體加固(gu)，副(fu)壩(ba)(ba)(ba)防(fang)汛道路建設等工(gong)(gong)(gong)(gong)程(cheng)，完(wan)(wan)(wan)成投資(zi)(zi)4252.00萬(wan)元(yuan)(yuan)。經過2次維(wei)修加固(gu)后，已基本消(xiao)除工(gong)(gong)(gong)(gong)程(cheng)隱患，大(da)大(da)提高了水庫(ku)的防(fang)汛能(neng)力和蓄水能(neng)力。

小(xiao)峰水庫(ku)(ku)建(jian)成后(hou)，發(fa)揮了水庫(ku)(ku)防洪、供水、灌(guan)溉和發(fa)電等(deng)多方面的(de)作用，具有顯著(zhu)的(de)經濟效(xiao)益和社(she)會效(xiao)益。

洪(hong)方面。汛前騰空水庫(ku)，預留防(fang)(fang)(fang)洪(hong)庫(ku)容，發揮水庫(ku)蓄洪(hong)、調節(jie)洪(hong)峰(feng)的功能，提高水庫(ku)下游(you)防(fang)(fang)(fang)城(cheng)江(jiang)沿(yan)岸鄉鎮(zhen)的防(fang)(fang)(fang)洪(hong)能力，把洪(hong)澇災害損失降到最低限度。

供水(shui)灌溉方面。由于防城江(jiang)來水(shui)豐(feng)枯(ku)不均，且相(xiang)差懸(xuan)殊，利用水(shui)庫蓄水(shui)每(mei)年可增加7820萬立方米的調節水(shui)量，以豐(feng)補枯(ku)進行調節，大(da)(da)大(da)(da)提高(gao)了防城港(gang)市城區工業和生活用水(shui)的供水(shui)能力(li)；同時，可以擴(kuo)大(da)(da)和改善(shan)農田灌溉面積18.38萬畝。

發(fa)電(dian)(dian)(dian)方面(mian)。已建成梯級水電(dian)(dian)(dian)站(zhan)小峰水電(dian)(dian)(dian)站(zhan)和江口水電(dian)(dian)(dian)站(zhan)2座，總裝機容量5350千(qian)瓦(wa)，年均發(fa)電(dian)(dian)(dian)量2116萬千(qian)瓦(wa)小時(shi)，水庫(ku)為多年調節水庫(ku)，水電(dian)(dian)(dian)站(zhan)可承(cheng)擔防城(cheng)電(dian)(dian)(dian)網的(de)部分調峰任務(wu)，緩解電(dian)(dian)(dian)網峰谷矛盾和電(dian)(dian)(dian)力供需(xu)矛盾，為促進地方經濟發(fa)展發(fa)揮(hui)了(le)積極作用。