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水庫范圍

壩(ba)址位于江西省萬安縣(xian)城芙蓉(rong)鎮上游(you)2千(qian)米(mi)(mi)處(chu)(chu)土橋頭，地處(chu)(chu)東經114°41′，北(bei)緯26°33′，上游(you)距贛州市(shi)(shi)、下游(you)距吉(ji)安市(shi)(shi)各90千(qian)米(mi)(mi)，控(kong)制流域面積36900平(ping)方千(qian)米(mi)(mi)。水(shui)庫回水(shui)長度90千(qian)米(mi)(mi)，回水(shui)涉及(ji)吉(ji)安市(shi)(shi)萬安縣(xian)、贛州市(shi)(shi)贛縣(xian)區和章貢(gong)區。

自然環境

地質地貌

水庫(ku)坐落在(zai)低山(shan)丘陵(ling)(ling)地(di)(di)(di)(di)(di)帶，庫(ku)周低山(shan)丘陵(ling)(ling)連綿(mian)起伏，壩址(zhi)地(di)(di)(di)(di)(di)處低山(shan)丘陵(ling)(ling)邊(bian)緣，河谷寬(kuan)闊，復式河槽(cao)左半部(bu)為(wei)河床段，寬(kuan)450米(mi)(mi)，右半部(bu)由漫灘和Ⅰ、Ⅱ級階地(di)(di)(di)(di)(di)組成(cheng)，寬(kuan)500米(mi)(mi)，覆蓋層(ceng)厚13米(mi)(mi)，左側山(shan)坡(po)35°～50°，右側山(shan)坡(po)25°。地(di)(di)(di)(di)(di)處華南地(di)(di)(di)(di)(di)層(ceng)區(qu)，構造單元為(wei)贛(gan)中(zhong)南褶隆，贛(gan)州(zhou)—吉安拗陷，大(da)湖(hu)山(shan)—芙蓉山(shan)隆斷(duan)束。地(di)(di)(di)(di)(di)質年代(dai)屬(shu)中(zhong)生代(dai)侏羅紀，新生代(dai)第四紀。巖層(ceng)分(fen)中(zhong)上統羅凹群(qun)，巖性為(wei)淺變質白(bai)色石英砂(sha)巖、粉砂(sha)巖和砂(sha)質頁巖，斷(duan)層(ceng)發育(yu)，較大(da)斷(duan)層(ceng)7條，斷(duan)距0.2米(mi)(mi)～8米(mi)(mi)。地(di)(di)(di)(di)(di)震烈度小于(yu)Ⅵ度。

主要支流

庫(ku)區水系(xi)發達，贛(gan)(gan)江在庫(ku)尾贛(gan)(gan)州市八境(jing)臺于左岸納(na)章(zhang)水后入(ru)庫(ku)，另有6條流(liu)域面積大于100平方千米(mi)的支(zhi)流(liu)入(ru)庫(ku)：左側長村河(he)(he)、攸(you)鎮河(he)(he)、皂(zao)口水，右側湖江河(he)(he)、良口水、武術水。

氣候水文

庫區(qu)屬(shu)中亞熱(re)帶季風濕潤氣候(hou)區(qu)，多年平(ping)均氣溫18.5攝氏度、年降(jiang)水量1560毫(hao)米（4～9月占68.7%）、年水面(mian)蒸發量893毫(hao)米。

水土流失治理

庫區森林曾遭受1958年(nian)大(da)煉鋼鐵、“文(wen)革”、1980年(nian)分(fen)山到(dao)戶(hu)3次較大(da)范圍(wei)砍伐。20世(shi)紀90年(nian)代起，采取封(feng)山育林、栽種經濟(ji)果林等措施加強治理，水(shui)(shui)土流失(shi)得到(dao)有(you)效(xiao)遏制(zhi)，植被覆蓋率(lv)88%。庫水(shui)(shui)清澈，2006年(nian)12月，水(shui)(shui)質達Ⅱ類地表水(shui)(shui)標(biao)準，已劃定水(shui)(shui)功能保留區2個(ge)，飲用(yong)水(shui)(shui)源區1個(ge)。

水庫來水來沙特征

徑(jing)流(liu)量(liang)(liang)多年(nian)平均年(nian)徑(jing)流(liu)量(liang)(liang)297億立方(fang)米(mi)，4～9月占(zhan)74.9%，歷(li)年(nian)最大年(nian)徑(jing)流(liu)量(liang)(liang)520億立方(fang)米(mi)（1973年(nian)），歷(li)年(nian)最小年(nian)徑(jing)流(liu)量(liang)(liang)104億立方(fang)米(mi)（1963年(nian)）。

入(ru)庫沙量多年(nian)(nian)平均(jun)年(nian)(nian)入(ru)庫沙量742萬(wan)噸，4～9月(yue)占85.3%，歷年(nian)(nian)最大(da)年(nian)(nian)入(ru)庫沙量1410萬(wan)噸（1973年(nian)(nian)），歷年(nian)(nian)最小年(nian)(nian)入(ru)庫沙量196萬(wan)噸（1963年(nian)(nian)）。

開發目標和主要效益

開發目標萬安水(shui)庫(ku)是贛江(jiang)干流(liu)綜合利(li)用(yong)的水(shui)利(li)水(shui)電梯級工(gong)程，以發電為主，兼有防洪、航(hang)運(yun)、灌(guan)溉、養殖、旅游等效益(yi)。

發電(dian)(dian)效(xiao)益(yi)(yi)：水(shui)(shui)(shui)電(dian)(dian)站(zhan)總裝機53.3萬(wan)(wan)千瓦，年(nian)平(ping)均發電(dian)(dian)量15.16億(yi)千瓦時。防(fang)洪(hong)(hong)效(xiao)益(yi)(yi)：20世紀(ji)90年(nian)代以(yi)來(lai)，贛(gan)(gan)江(jiang)上(shang)游(you)多次(ci)發生洪(hong)(hong)峰(feng)(feng)流量超過(guo)(guo)1萬(wan)(wan)立(li)方米(mi)(mi)(mi)每(mei)秒的(de)洪(hong)(hong)水(shui)(shui)(shui)，水(shui)(shui)(shui)庫(ku)(ku)(ku)(ku)發揮(hui)(hui)調(diao)洪(hong)(hong)作用(yong)，平(ping)均削(xue)峰(feng)(feng)率達15%。尤(you)其1994年(nian)6月攔蓄洪(hong)(hong)水(shui)(shui)(shui)6.3億(yi)立(li)方米(mi)(mi)(mi)，削(xue)減(jian)(jian)洪(hong)(hong)峰(feng)(feng)21%，1995年(nian)6月攔蓄洪(hong)(hong)水(shui)(shui)(shui)4.8億(yi)立(li)方米(mi)(mi)(mi)，削(xue)減(jian)(jian)洪(hong)(hong)峰(feng)(feng)23.1%。通(tong)過(guo)(guo)水(shui)(shui)(shui)庫(ku)(ku)(ku)(ku)發揮(hui)(hui)蓄滯洪(hong)(hong)作用(yong)，可提高(gao)吉安至(zhi)南昌段防(fang)洪(hong)(hong)標準到50年(nian)一遇，降(jiang)低中下(xia)游(you)洪(hong)(hong)水(shui)(shui)(shui)位0.4～1.3米(mi)(mi)(mi)，減(jian)(jian)輕(qing)中下(xia)游(you)的(de)防(fang)洪(hong)(hong)壓力。水(shui)(shui)(shui)庫(ku)(ku)(ku)(ku)設(she)(she)計防(fang)洪(hong)(hong)庫(ku)(ku)(ku)(ku)容(rong)10.2億(yi)立(li)方米(mi)(mi)(mi)，但由(you)于(yu)移民問題(ti)未完全(quan)解決(jue)，防(fang)洪(hong)(hong)效(xiao)益(yi)(yi)未充分發揮(hui)(hui)。航(hang)運(yun)效(xiao)益(yi)(yi)：建(jian)庫(ku)(ku)(ku)(ku)前(qian)(qian)，萬(wan)(wan)安至(zhi)贛(gan)(gan)州(zhou)段“九(jiu)曲十八灘(tan)(tan)，船(chuan)(chuan)過(guo)(guo)十有九(jiu)艘翻”，建(jian)庫(ku)(ku)(ku)(ku)后，水(shui)(shui)(shui)庫(ku)(ku)(ku)(ku)上(shang)下(xia)游(you)航(hang)運(yun)條件大為改善。十八灘(tan)(tan)沉入(ru)水(shui)(shui)(shui)下(xia)，“高(gao)峽出平(ping)湖，四(si)季皆(jie)暢通(tong)”。經(jing)水(shui)(shui)(shui)庫(ku)(ku)(ku)(ku)調(diao)節，大壩下(xia)游(you)年(nian)平(ping)均流量由(you)建(jian)庫(ku)(ku)(ku)(ku)前(qian)(qian)的(de)150立(li)方米(mi)(mi)(mi)每(mei)秒加大到350立(li)方米(mi)(mi)(mi)每(mei)秒，平(ping)均水(shui)(shui)(shui)深由(you)0.7米(mi)(mi)(mi)提高(gao)到1.0米(mi)(mi)(mi)。大壩單級船(chuan)(chuan)閘(zha)可通(tong)過(guo)(guo)2艘500噸(dun)(dun)位駁船(chuan)(chuan)組成的(de)船(chuan)(chuan)隊。截止2001年(nian)底，累計開閘(zha)2.1萬(wan)(wan)次(ci)，過(guo)(guo)往船(chuan)(chuan)只14.4萬(wan)(wan)艘次(ci)，總貨運(yun)量818.3萬(wan)(wan)噸(dun)(dun)。灌(guan)溉效(xiao)益(yi)(yi)：設(she)(she)計灌(guan)溉面積(ji)1.35萬(wan)(wan)公頃(qing)(qing)(qing)(qing)：右岸灌(guan)區(qu)(qu)設(she)(she)計灌(guan)溉面積(ji)1.0萬(wan)(wan)公頃(qing)(qing)(qing)(qing)，尚未動工建(jian)設(she)(she)；左岸灌(guan)區(qu)(qu)實際灌(guan)溉面積(ji)3500公頃(qing)(qing)(qing)(qing)。養殖效(xiao)益(yi)(yi)：利用(yong)庫(ku)(ku)(ku)(ku)汊養魚(yu)(yu)(yu)，可養水(shui)(shui)(shui)面1.87萬(wan)(wan)公頃(qing)(qing)(qing)(qing)，主要養鳙魚(yu)(yu)(yu)，兼養鯉魚(yu)(yu)(yu)、鰱魚(yu)(yu)(yu)、草魚(yu)(yu)(yu)、長吻魚(yu)(yu)(yu)，2006年(nian)鮮(xian)魚(yu)(yu)(yu)產量15萬(wan)(wan)噸(dun)(dun)。旅游(you)效(xiao)益(yi)(yi)：水(shui)(shui)(shui)庫(ku)(ku)(ku)(ku)形成100平(ping)方千米(mi)(mi)(mi)水(shui)(shui)(shui)域的(de)萬(wan)(wan)安湖，水(shui)(shui)(shui)面碧波(bo)(bo)萬(wan)(wan)頃(qing)(qing)(qing)(qing)，煙波(bo)(bo)浩(hao)淼，湖周(zhou)眾多湖港半島，湖光山(shan)色，風景(jing)迷人，是千里贛(gan)(gan)江(jiang)風景(jing)秀麗的(de)一段。庫(ku)(ku)(ku)(ku)周(zhou)是國家級森林公園、省級風景(jing)名勝區(qu)(qu)。

水庫特征

日調節水(shui)(shui)庫(ku)(ku)(ku)，設計(ji)(ji)正(zheng)常蓄水(shui)(shui)位(wei)100米(mi)(mi)(mi)(mi)，由(you)于移民問題(ti)未完全解決而(er)未達(da)設計(ji)(ji)標準(zhun)，至(zhi)2006年仍為初期(qi)運行。實際正(zheng)常蓄水(shui)(shui)位(wei)96米(mi)(mi)(mi)(mi)（黃(huang)海(hai)基面(mian)(mian)(mian)），4～6月防(fang)(fang)洪(hong)(hong)限制(zhi)水(shui)(shui)位(wei)85米(mi)(mi)(mi)(mi)～87米(mi)(mi)(mi)(mi)，50年一(yi)遇(yu)洪(hong)(hong)水(shui)(shui)不(bu)超過(guo)93.6米(mi)(mi)(mi)(mi)，7～9月防(fang)(fang)洪(hong)(hong)限制(zhi)水(shui)(shui)位(wei)94.5～96米(mi)(mi)(mi)(mi)，汛后(hou)蓄水(shui)(shui)位(wei)96米(mi)(mi)(mi)(mi)，死水(shui)(shui)位(wei)85米(mi)(mi)(mi)(mi)；設計(ji)(ji)洪(hong)(hong)水(shui)(shui)位(wei)（千(qian)年一(yi)遇(yu)洪(hong)(hong)水(shui)(shui)設計(ji)(ji)）100.0米(mi)(mi)(mi)(mi)，校(xiao)核洪(hong)(hong)水(shui)(shui)位(wei)(萬年一(yi)遇(yu)洪(hong)(hong)水(shui)(shui)校(xiao)核)100.7米(mi)(mi)(mi)(mi)，可能最(zui)大(da)（PMP）洪(hong)(hong)水(shui)(shui)位(wei)103.6米(mi)(mi)(mi)(mi)，總庫(ku)(ku)(ku)容(rong)(rong)22.16億立方米(mi)(mi)(mi)(mi)。正(zheng)常蓄水(shui)(shui)位(wei)（96.0米(mi)(mi)(mi)(mi)）相(xiang)應(ying)庫(ku)(ku)(ku)容(rong)(rong)11.16億立方米(mi)(mi)(mi)(mi)、相(xiang)應(ying)庫(ku)(ku)(ku)面(mian)(mian)(mian)面(mian)(mian)(mian)積107.5平方千(qian)米(mi)(mi)(mi)(mi)；興(xing)利庫(ku)(ku)(ku)容(rong)(rong)7.97億立方米(mi)(mi)(mi)(mi)，死庫(ku)(ku)(ku)容(rong)(rong)3.19億立方米(mi)(mi)(mi)(mi)，設計(ji)(ji)防(fang)(fang)洪(hong)(hong)庫(ku)(ku)(ku)容(rong)(rong)10.2億立方米(mi)(mi)(mi)(mi)。河道型水(shui)(shui)庫(ku)(ku)(ku)，平均庫(ku)(ku)(ku)面(mian)(mian)(mian)寬2千(qian)米(mi)(mi)(mi)(mi)，沿程(cheng)變(bian)化不(bu)大(da)。庫(ku)(ku)(ku)區呈(cheng)帶狀淤(yu)積，兼(jian)有三角(jiao)洲淤(yu)積及錐體淤(yu)積性(xing)質，三角(jiao)洲頂(ding)點在良口，主要淤(yu)積部位(wei)在小(xiao)湖洲～良口段，水(shui)(shui)庫(ku)(ku)(ku)多年平均泥沙淤(yu)積量400萬噸。

主要建筑物

樞紐(niu)工程由大壩、船閘、電站(zhan)廠房、灌溉(gai)渠系組(zu)成。

大(da)(da)壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)全長(chang)(chang)(chang)(chang)1104米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，共(gong)分(fen)8個壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)段，自右至左(zuo)(zuo)依次為：①右側臺地土(tu)(tu)(tu)壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)長(chang)(chang)(chang)(chang)430米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)頂(ding)(ding)高(gao)(gao)程(cheng)105米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，最(zui)(zui)(zui)大(da)(da)壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)高(gao)(gao)37米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)、壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)頂(ding)(ding)寬(kuan)8.5米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)；②混(hun)(hun)(hun)凝(ning)(ning)(ning)土(tu)(tu)(tu)船閘(zha)壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)長(chang)(chang)(chang)(chang)51米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，單(dan)級船閘(zha)閘(zha)室有效(xiao)尺(chi)寸175米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)×14米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)×2.5米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)；③船閘(zha)與電(dian)站廠(chang)(chang)房(fang)(fang)(fang)之間混(hun)(hun)(hun)凝(ning)(ning)(ning)土(tu)(tu)(tu)非溢(yi)流(liu)(liu)(liu)壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)長(chang)(chang)(chang)(chang)18米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)頂(ding)(ding)高(gao)(gao)程(cheng)104米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，最(zui)(zui)(zui)大(da)(da)壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)高(gao)(gao)44米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)頂(ding)(ding)寬(kuan)19米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)；④電(dian)站廠(chang)(chang)房(fang)(fang)(fang)混(hun)(hun)(hun)凝(ning)(ning)(ning)土(tu)(tu)(tu)壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)長(chang)(chang)(chang)(chang)197米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)頂(ding)(ding)高(gao)(gao)程(cheng)104米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，最(zui)(zui)(zui)大(da)(da)壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)高(gao)(gao)68.1米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，河床(chuang)式電(dian)站發(fa)電(dian)廠(chang)(chang)房(fang)(fang)(fang)，安裝5臺機組，單(dan)機最(zui)(zui)(zui)大(da)(da)引(yin)用流(liu)(liu)(liu)量(liang)(liang)580立方米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)每秒，位(wei)于右河床(chuang)，包括(kuo)主廠(chang)(chang)房(fang)(fang)(fang)、安裝場、操作管理(li)大(da)(da)樓、上游進(jin)水渠(qu)及攔沙坎(kan)、下(xia)游尾水渠(qu)和擋土(tu)(tu)(tu)墻及護岸(an)工程(cheng)、進(jin)庫公路、廠(chang)(chang)外油(you)庫及油(you)處理(li)室；⑤混(hun)(hun)(hun)凝(ning)(ning)(ning)土(tu)(tu)(tu)底孔壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)長(chang)(chang)(chang)(chang)150米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)頂(ding)(ding)高(gao)(gao)程(cheng)104米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，最(zui)(zui)(zui)大(da)(da)壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)高(gao)(gao)58米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)頂(ding)(ding)寬(kuan)21米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)內(nei)設(she)10個7米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)×9米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)泄流(liu)(liu)(liu)孔，以(yi)弧形閘(zha)門(men)控制，最(zui)(zui)(zui)大(da)(da)泄流(liu)(liu)(liu)量(liang)(liang)1.38萬立方米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)每秒；⑥混(hun)(hun)(hun)凝(ning)(ning)(ning)土(tu)(tu)(tu)導墻長(chang)(chang)(chang)(chang)14米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)；⑦混(hun)(hun)(hun)凝(ning)(ning)(ning)土(tu)(tu)(tu)溢(yi)流(liu)(liu)(liu)壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)長(chang)(chang)(chang)(chang)164米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)頂(ding)(ding)高(gao)(gao)程(cheng)104米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，最(zui)(zui)(zui)大(da)(da)壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)高(gao)(gao)49米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)頂(ding)(ding)寬(kuan)21.5米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，堰頂(ding)(ding)高(gao)(gao)程(cheng)84米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，堰寬(kuan)126米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，分(fen)9孔，每孔14米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，弧形閘(zha)門(men)14米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)×16.5米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，最(zui)(zui)(zui)大(da)(da)下(xia)泄流(liu)(liu)(liu)量(liang)(liang)2.26萬立方米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)每秒；⑧左(zuo)(zuo)側混(hun)(hun)(hun)凝(ning)(ning)(ning)土(tu)(tu)(tu)非溢(yi)流(liu)(liu)(liu)壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)長(chang)(chang)(chang)(chang)80米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)頂(ding)(ding)高(gao)(gao)程(cheng)104米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，最(zui)(zui)(zui)大(da)(da)壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)高(gao)(gao)44米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)頂(ding)(ding)寬(kuan)22.8米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，壩(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)(ba)體內(nei)設(she)灌溉涵管內(nei)徑1.1米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，引(yin)用流(liu)(liu)(liu)量(liang)(liang)4立方米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)每秒。灌溉渠(qu)系(xi)分(fen)左(zuo)(zuo)右岸(an)灌區，左(zuo)(zuo)岸(an)灌區主干渠(qu)全長(chang)(chang)(chang)(chang)13.59千(qian)米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)，支(zhi)渠(qu)6條總長(chang)(chang)(chang)(chang)25.7千(qian)米(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)；右岸(an)灌區未建。

水庫淹沒與移民安置

設計(ji)正(zheng)常蓄(xu)水(shui)位(wei)100米，水(shui)庫(ku)淹(yan)沒萬(wan)安(an)縣(xian)、贛縣(xian)區、章貢(gong)區3縣(xian)區的(de)309個(ge)(ge)自然村(cun)，耕地(di)4710公(gong)(gong)頃，山(shan)林2.3萬(wan)公(gong)(gong)頃，鄉級公(gong)(gong)路(lu)109.5千米，小型(xing)水(shui)利(li)和火力發(fa)電站43座，應遷(qian)移(yi)人(ren)(ren)(ren)口(kou)12.94萬(wan)人(ren)(ren)(ren)。由于移(yi)民(min)問(wen)題未得到完全解(jie)決，水(shui)庫(ku)未達到設計(ji)標準(zhun)，按(an)初期(qi)標準(zhun)正(zheng)常蓄(xu)水(shui)位(wei)96米運(yun)行(xing)，淹(yan)沒耕地(di)3130公(gong)(gong)頃，共需遷(qian)出14個(ge)(ge)鄉的(de)72個(ge)(ge)村(cun)8125戶計(ji)4.59萬(wan)人(ren)(ren)(ren)。至1990年底，共遷(qian)移(yi)4.27萬(wan)人(ren)(ren)(ren)，已(yi)建(jian)圩鎮8個(ge)(ge)，新建(jian)房(fang)(fang)屋(wu)14.8萬(wan)平方米，新建(jian)農房(fang)(fang)70萬(wan)平方米、雜房(fang)(fang)9萬(wan)平方米，為移(yi)民(min)劃撥耕地(di)2720公(gong)(gong)頃、山(shan)地(di)5670公(gong)(gong)頃。萬(wan)安(an)縣(xian)移(yi)民(min)均安(an)置在本(ben)縣(xian)，贛縣(xian)區移(yi)民(min)大部分安(an)置在本(ben)縣(xian)或就(jiu)地(di)后靠，20戶100人(ren)(ren)(ren)安(an)置在萬(wan)安(an)縣(xian)。