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工程概況

擴建(jian)后(hou)，水(shui)庫總(zong)庫容量由2360萬(wan)m3擴建(jian)至14960萬(wan)m3（大二型水(shui)庫）。灌(guan)溉(gai)面積(ji)為(wei)32.84萬(wan)畝（其中改善灌(guan)溉(gai)面積(ji)18.27萬(wan)畝，新(xin)增灌(guan)溉(gai)面積(ji)14.57萬(wan)畝）。供水(shui)人口59.1萬(wan)人，按95%的保證率供生活和工業用水(shui)6118萬(wan)m3。擴建(jian)后(hou)玉灘水(shui)庫正常(chang)蓄水(shui)位(wei)(wei)351.60m，相(xiang)應庫容1.321億(yi)m3，校核(he)洪(hong)(hong)(hong)(hong)水(shui)位(wei)(wei)353.31m，總(zong)庫容1.496億(yi)m3。水(shui)庫設計洪(hong)(hong)(hong)(hong)水(shui)標(biao)準(zhun)為(wei)100年一遇(yu)洪(hong)(hong)(hong)(hong)水(shui)，洪(hong)(hong)(hong)(hong)峰(feng)流量為(wei)2230 m3/s；校核(he)洪(hong)(hong)(hong)(hong)水(shui)標(biao)準(zhun)為(wei)2000年一遇(yu)洪(hong)(hong)(hong)(hong)水(shui)，洪(hong)(hong)(hong)(hong)峰(feng)流量為(wei)4270 m3/s。

工程結構

玉灘水(shui)(shui)庫(ku)樞(shu)紐(niu)建(jian)(jian)(jian)筑(zhu)物(wu)(wu)(wu)(wu)主(zhu)要(yao)由主(zhu)壩(ba)(ba)、副(fu)壩(ba)(ba)、溢(yi)洪道及(ji)左(zuo)(zuo)、右(you)(you)岸灌溉(gai)引(yin)水(shui)(shui)隧洞(dong)(dong)組成。水(shui)(shui)庫(ku)工程主(zhu)壩(ba)(ba)推薦(jian)壩(ba)(ba)型為(wei)瀝青心墻石渣壩(ba)(ba)，泄洪建(jian)(jian)(jian)筑(zhu)物(wu)(wu)(wu)(wu)布(bu)置(zhi)于左(zuo)(zuo)岸香爐石山左(zuo)(zuo)側埡(wu)口處，灌溉(gai)引(yin)水(shui)(shui)隧洞(dong)(dong)分別(bie)布(bu)置(zhi)在(zai)主(zhu)壩(ba)(ba)左(zuo)(zuo)、右(you)(you)兩(liang)岸，主(zhu)壩(ba)(ba)壩(ba)(ba)址右(you)(you)岸埡(wu)口處布(bu)置(zhi)7座(zuo)漿砌(qi)石副(fu)壩(ba)(ba)。樞(shu)紐(niu)主(zhu)要(yao)建(jian)(jian)(jian)筑(zhu)物(wu)(wu)(wu)(wu)主(zhu)壩(ba)(ba)、副(fu)壩(ba)(ba)、溢(yi)洪道、右(you)(you)岸灌溉(gai)引(yin)水(shui)(shui)隧洞(dong)(dong)為(wei)2級(ji)(ji)建(jian)(jian)(jian)筑(zhu)物(wu)(wu)(wu)(wu)，其他次要(yao)建(jian)(jian)(jian)筑(zhu)物(wu)(wu)(wu)(wu)為(wei)3級(ji)(ji)，左(zuo)(zuo)岸灌溉(gai)引(yin)水(shui)(shui)隧洞(dong)(dong)及(ji)其進水(shui)(shui)口按3級(ji)(ji)建(jian)(jian)(jian)筑(zhu)物(wu)(wu)(wu)(wu)設(she)計，泵站工程等(deng)別(bie)為(wei)Ⅳ等(deng)，建(jian)(jian)(jian)筑(zhu)物(wu)(wu)(wu)(wu)級(ji)(ji)別(bie)為(wei)4級(ji)(ji)。

玉灘水庫灌區劃分為(wei)左干渠(qu)、右干渠(qu)和朱家廟提(ti)灌干渠(qu)、巖洞提(ti)灌區及庫內零星小型提(ti)灌站(zhan)灌區，共5個灌區。渠(qu)道(dao)干渠(qu)長度共計96.85km，其(qi)中(zhong)：明渠(qu)（含(han)暗渠(qu)、泵站(zhan)水平管(guan)線）68.03km、渡槽69座(zuo)7808.9m，隧洞74座(zuo)20631.9m，倒虹(hong)管(guan)1處(chu)375m、管(guan)道(dao)1處(chu)3353.8m，電力(li)提(ti)灌6處(chu)總裝機4292kW。灌溉(gai)面積萬畝以上支渠(qu)3條7.64km，其(qi)中(zhong)：明渠(qu)（含(han)暗渠(qu)、泵站(zhan)水平管(guan)線）5.325km、隧洞4座(zuo)1259.2m、渡槽1座(zuo)133.0m、倒虹(hong)管(guan)3處(chu)923.0m。

工程作用

供(gong)給大(da)足區的珠溪、龍水、三驅(qu)、郵亭，雙橋區的雙路，榮(rong)昌縣(xian)(xian)的路孔、雙河、昌元(yuan)、廣順(shun)、安(an)富等16個(ge)(ge)鎮(zhen)(zhen)，灌(guan)溉面積(ji)32.84萬畝(mu)；同時每年還(huan)供(gong)給大(da)足縣(xian)(xian)城龍崗鎮(zhen)(zhen)、龍水鎮(zhen)(zhen)、雙橋區、榮(rong)昌縣(xian)(xian)城昌元(yuan)鎮(zhen)(zhen)等16個(ge)(ge)鎮(zhen)(zhen)59.1萬人的生活用(yong)水及(ji)工業用(yong)水。

獲獎情況

2011年，玉灘水庫(ku)工(gong)(gong)(gong)程(cheng)(cheng)實現下(xia)閘(zha)蓄(xu)水；2012年9月(yue)，樞紐工(gong)(gong)(gong)程(cheng)(cheng)以優(you)良的(de)評(ping)價完成竣工(gong)(gong)(gong)及水保、檔案(an)等(deng)全(quan)部單(dan)項(xiang)驗收；11月(yue)，獲得(de)了(le)中(zhong)(zhong)國(guo)水利工(gong)(gong)(gong)程(cheng)(cheng)優(you)質獎（大禹(yu)獎），玉灘工(gong)(gong)(gong)程(cheng)(cheng)交出了(le)一(yi)(yi)(yi)份合格答卷。11月(yue)17日，由住(zhu)建(jian)部、中(zhong)(zhong)國(guo)建(jian)設(she)業協會舉辦的(de)2014-2015年度“中(zhong)(zhong)國(guo)建(jian)設(she)工(gong)(gong)(gong)程(cheng)(cheng)魯班(ban)獎”獲獎名單(dan)在(zai)北京公布，我市玉灘水庫(ku)擴建(jian)工(gong)(gong)(gong)程(cheng)(cheng)獲得(de)中(zhong)(zhong)國(guo)建(jian)設(she)工(gong)(gong)(gong)程(cheng)(cheng)魯班(ban)獎。這是今年全(quan)國(guo)水利工(gong)(gong)(gong)程(cheng)(cheng)建(jian)設(she)唯一(yi)(yi)(yi)一(yi)(yi)(yi)個魯班(ban)獎，也是我市水利工(gong)(gong)(gong)程(cheng)(cheng)建(jian)設(she)首次獲此殊榮。