簡介
水(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku)建(jian)設(she)工(gong)(gong)程(cheng)(cheng)(cheng)由原欽州地(di)區(qu)水(shui)(shui)(shui)(shui)(shui)(shui)利電(dian)(dian)力設(she)計(ji)隊(dui)勘測設(she)計(ji),報(bao)自治區(qu)水(shui)(shui)(shui)(shui)(shui)(shui)利電(dian)(dian)力廳審批后,由原防城縣負(fu)責組織實(shi)施(shi),于(yu)(yu)(yu)(yu)1978年(nian)(nian)(nian)動工(gong)(gong)興建(jian),1982年(nian)(nian)(nian)基本建(jian)成(cheng)(cheng)投(tou)入運行(xing)。至1990年(nian)(nian)(nian)底,水(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku)工(gong)(gong)程(cheng)(cheng)(cheng)完成(cheng)(cheng)總(zong)(zong)投(tou)資1301萬元(yuan)。建(jian)成(cheng)(cheng)水(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku)主(zhu)體工(gong)(gong)程(cheng)(cheng)(cheng)建(jian)筑物(wu)有(you):主(zhu)壩(ba)(ba)(ba)1座,為(wei)(wei)均(jun)質(zhi)土(tu)壩(ba)(ba)(ba),壩(ba)(ba)(ba)頂高程(cheng)(cheng)(cheng)186.50米(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)頂長378米(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)頂寬(kuan)7米(mi)(mi)(mi)(mi)(mi)(mi)~8米(mi)(mi)(mi)(mi)(mi)(mi),最(zui)大壩(ba)(ba)(ba)高42米(mi)(mi)(mi)(mi)(mi)(mi)。副(fu)壩(ba)(ba)(ba)3座,均(jun)位于(yu)(yu)(yu)(yu)水(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku)北面那(nei)勉(mian)溝的分水(shui)(shui)(shui)(shui)(shui)(shui)嶺(ling)處,為(wei)(wei)土(tu)壩(ba)(ba)(ba)工(gong)(gong)程(cheng)(cheng)(cheng)。其(qi)(qi)中(zhong)1號(hao)副(fu)壩(ba)(ba)(ba)最(zui)大壩(ba)(ba)(ba)高15.60米(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)頂寬(kuan)6米(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)頂長172米(mi)(mi)(mi)(mi)(mi)(mi);2號(hao)副(fu)壩(ba)(ba)(ba)最(zui)大壩(ba)(ba)(ba)高6.7米(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)頂寬(kuan)6米(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)頂長110米(mi)(mi)(mi)(mi)(mi)(mi);3號(hao)副(fu)壩(ba)(ba)(ba)最(zui)大壩(ba)(ba)(ba)高5.70米(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)頂寬(kuan)6米(mi)(mi)(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)頂長78米(mi)(mi)(mi)(mi)(mi)(mi)。溢(yi)洪道1座,位于(yu)(yu)(yu)(yu)主(zhu)壩(ba)(ba)(ba)右端,由進(jin)水(shui)(shui)(shui)(shui)(shui)(shui)段及閘室、陡坡(po)、消力池、尾(wei)水(shui)(shui)(shui)(shui)(shui)(shui)渠和護岸(an)等(deng)部分組成(cheng)(cheng)。溢(yi)流堰頂高程(cheng)(cheng)(cheng)176米(mi)(mi)(mi)(mi)(mi)(mi),設(she)有(you)9米(mi)(mi)(mi)(mi)(mi)(mi)×6米(mi)(mi)(mi)(mi)(mi)(mi)鋼板弧型(xing)閘門,陡坡(po)段寬(kuan)19.60米(mi)(mi)(mi)(mi)(mi)(mi)一(yi)30米(mi)(mi)(mi)(mi)(mi)(mi)。消力池長30米(mi)(mi)(mi)(mi)(mi)(mi),寬(kuan)10米(mi)(mi)(mi)(mi)(mi)(mi)。尾(wei)水(shui)(shui)(shui)(shui)(shui)(shui)渠長240米(mi)(mi)(mi)(mi)(mi)(mi),寬(kuan)30米(mi)(mi)(mi)(mi)(mi)(mi),最(zui)大泄洪流量(liang)(liang)為(wei)(wei)1008立方米(mi)(mi)(mi)(mi)(mi)(mi)每秒。輸水(shui)(shui)(shui)(shui)(shui)(shui)隧洞(dong)1孔(kong),位于(yu)(yu)(yu)(yu)主(zhu)壩(ba)(ba)(ba)左岸(an),用于(yu)(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226.60米(mi)(mi)(mi)(mi)(mi)(mi),洞(dong)內直徑2米(mi)(mi)(mi)(mi)(mi)(mi),鋼筋混凝土(tu)結構。進(jin)水(shui)(shui)(shui)(shui)(shui)(shui)口底高程(cheng)(cheng)(cheng)155.5米(mi)(mi)(mi)(mi)(mi)(mi),輸水(shui)(shui)(shui)(shui)(shui)(shui)流量(liang)(liang)12立方米(mi)(mi)(mi)(mi)(mi)(mi)每秒。水(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku)建(jian)有(you)梯級電(dian)(dian)站(zhan)(zhan)2座,總(zong)(zong)裝(zhuang)機(ji)(ji)容量(liang)(liang)5350千(qian)瓦。其(qi)(qi)中(zhong),小(xiao)峰水(shui)(shui)(shui)(shui)(shui)(shui)電(dian)(dian)站(zhan)(zhan)(一(yi)級站(zhan)(zhan))位于(yu)(yu)(yu)(yu)小(xiao)峰水(shui)(shui)(shui)(shui)(shui)(shui)庫(ku)(ku)大壩(ba)(ba)(ba)下游左岸(an),1978年(nian)(nian)(nian)興建(jian),1982年(nian)(nian)(nian)投(tou)入運行(xing)。裝(zhuang)機(ji)(ji)2臺、單機(ji)(ji)容量(liang)(liang)800千(qian)瓦;江(jiang)口水(shui)(shui)(shui)(shui)(shui)(shui)電(dian)(dian)站(zhan)(zhan)(二級站(zhan)(zhan))位于(yu)(yu)(yu)(yu)扶隆鄉南江(jiang)村,1982年(nian)(nian)(nian)興建(jian),1985年(nian)(nian)(nian)建(jian)成(cheng)(cheng),是利用小(xiao)峰電(dian)(dian)站(zhan)(zhan)的尾(wei)水(shui)(shui)(shui)(shui)(shui)(shui)通過9.35公(gong)里長的沿(yan)山渠道作為(wei)(wei)水(shui)(shui)(shui)(shui)(shui)(shui)源,設(she)計(ji)引(yin)水(shui)(shui)(shui)(shui)(shui)(shui)流量(liang)(liang)6立方米(mi)(mi)(mi)(mi)(mi)(mi)每秒,設(she)計(ji)水(shui)(shui)(shui)(shui)(shui)(shui)頭落(luo)差74.84米(mi)(mi)(mi)(mi)(mi)(mi)。裝(zhuang)機(ji)(ji)3臺、單機(ji)(ji)容量(liang)(liang)1250千(qian)瓦, 2、3號(hao)機(ji)(ji)組于(yu)(yu)(yu)(yu)1985年(nian)(nian)(nian)安裝(zhuang)投(tou)入運行(xing);1號(hao)機(ji)(ji)組于(yu)(yu)(yu)(yu)1987年(nian)(nian)(nian)安裝(zhuang)發電(dian)(dian)。
小峰(feng)水(shui)庫建成后運行(xing)(xing)初期,由(you)于受(shou)經濟和技術(shu)條件的(de)限(xian)制,工(gong)程建設標準低,工(gong)程存在(zai)著質量較差(cha)、病險(xian)隱患(huan)多等工(gong)程安全(quan)問題,被迫降低水(shui)位(wei)進行(xing)(xing)運行(xing)(xing)。為了(le)確保人民生(sheng)命財產安全(quan),發揮水(shui)庫最(zui)大效益,自1992年開始,按設計要求對水(shui)庫主體工(gong)程已進行(xing)(xing)2次全(quan)面(mian)除(chu)險(xian)加(jia)(jia)固,累計投入(ru)除(chu)險(xian)加(jia)(jia)固資金6230萬元。 ? ? ? ? ? ? ? ?
第一次(ci)除(chu)險(xian)加(jia)固工(gong)(gong)程于1992年(nian)動(dong)工(gong)(gong),1999年(nian)完工(gong)(gong)。工(gong)(gong)程項目主(zhu)要是加(jia)固主(zhu)壩(ba)(ba)基礎、溢(yi)洪(hong)(hong)道(dao)出口段及(ji)修(xiu)建(jian)進(jin)庫(ku)公路(lu),投資1853.00萬元;第二(er)次(ci)除(chu)險(xian)加(jia)固工(gong)(gong)程于2002年(nian)動(dong)工(gong)(gong),2004年(nian)1月完工(gong)(gong),工(gong)(gong)程主(zhu)要項目有(you)主(zhu)壩(ba)(ba)副壩(ba)(ba)壩(ba)(ba)體(ti)防(fang)(fang)滲(shen),主(zhu)壩(ba)(ba)右壩(ba)(ba)肩培(pei)厚(hou),大(da)壩(ba)(ba)安全監測,溢(yi)洪(hong)(hong)道(dao)、主(zhu)壩(ba)(ba)副壩(ba)(ba)壩(ba)(ba)體(ti)加(jia)固,副壩(ba)(ba)防(fang)(fang)汛道(dao)路(lu)建(jian)設等工(gong)(gong)程,完成(cheng)投資4252.00萬元。經過2次(ci)維修(xiu)加(jia)固后,已基本(ben)消除(chu)工(gong)(gong)程隱(yin)患,大(da)大(da)提(ti)高了水(shui)庫(ku)的防(fang)(fang)汛能(neng)力(li)和蓄(xu)水(shui)能(neng)力(li)。
小峰水庫建成后,發揮了水庫防(fang)洪、供(gong)水、灌溉(gai)和發電等多方(fang)面的作(zuo)用,具有顯著(zhu)的經濟效益(yi)和社會(hui)效益(yi)。
洪(hong)(hong)方面。汛(xun)前騰空水(shui)庫,預留防(fang)(fang)洪(hong)(hong)庫容,發揮水(shui)庫蓄(xu)洪(hong)(hong)、調節洪(hong)(hong)峰的功(gong)能,提高水(shui)庫下(xia)游防(fang)(fang)城(cheng)江沿岸(an)鄉鎮的防(fang)(fang)洪(hong)(hong)能力,把洪(hong)(hong)澇災害(hai)損失降到最低限度(du)。
供水(shui)灌溉方面。由(you)于防城(cheng)江來水(shui)豐枯不均,且相差懸殊(shu),利(li)用水(shui)庫蓄水(shui)每年可增加7820萬立方米(mi)的調節(jie)(jie)水(shui)量,以(yi)豐補枯進行調節(jie)(jie),大(da)(da)大(da)(da)提高了防城(cheng)港(gang)市(shi)城(cheng)區工業和生活用水(shui)的供水(shui)能(neng)力;同時,可以(yi)擴大(da)(da)和改善(shan)農田灌溉面積18.38萬畝。
發(fa)(fa)電(dian)方面。已建成梯(ti)級水(shui)電(dian)站(zhan)(zhan)小峰水(shui)電(dian)站(zhan)(zhan)和(he)江(jiang)口(kou)水(shui)電(dian)站(zhan)(zhan)2座(zuo),總裝機(ji)容(rong)量5350千(qian)瓦(wa),年均發(fa)(fa)電(dian)量2116萬千(qian)瓦(wa)小時(shi),水(shui)庫為(wei)(wei)多年調節水(shui)庫,水(shui)電(dian)站(zhan)(zhan)可(ke)承擔防城電(dian)網的部分調峰任務,緩解電(dian)網峰谷(gu)矛盾(dun)和(he)電(dian)力供(gong)需矛盾(dun),為(wei)(wei)促(cu)進(jin)地方經濟發(fa)(fa)展發(fa)(fa)揮了積極作用。