陜西省延安市(shi)南溝門水利樞(shu)(shu)紐(niu)(niu)工(gong)程(cheng)由蘆河(he)南溝水庫樞(shu)(shu)紐(niu)(niu)、洛河(he)引洛入(ru)葫工(gong)程(cheng)兩部(bu)分組(zu)成,其中引洛入(ru)葫工(gong)程(cheng)包括(kuo)馬家河(he)低壩引水樞(shu)(shu)紐(niu)(niu)和輸水隧(sui)洞。
地理位置
南溝門水(shui)利樞紐(niu)工程位于陜西省延安市(shi)黃陵縣(xian)境內,水(shui)庫壩(ba)址位于葫蘆河河口上游(you)3公(gong)里處的南溝門附近,距黃陵城約25公(gong)里,距洛川(chuan)縣(xian)城約17公(gong)里,距延安市(shi)約120公(gong)里,距西安市(shi)約180 公(gong)里。
等級
南(nan)溝(gou)門水(shui)庫樞(shu)紐總(zong)庫容2.006億立方米,為Ⅱ等(deng)、大(2)型工程,樞(shu)紐主要建筑物(wu)由攔河壩(ba)(ba)(ba)、導流(liu)泄(xie)洪洞(dong)、溢洪道(dao)(dao)、引(yin)水(shui)發(fa)電洞(dong)、壩(ba)(ba)(ba)后電站(zhan)等(deng)五部分組(zu)成。其中大壩(ba)(ba)(ba)、導流(liu)泄(xie)洪洞(dong)、溢洪道(dao)(dao)為2級建筑物(wu);引(yin)水(shui)發(fa)電洞(dong)電因(yin)供(gong)水(shui)對象(xiang)的重要性也定為2級建筑物(wu),壩(ba)(ba)(ba)后電站(zhan)屬5級建筑物(wu)。
南溝門水庫攔(lan)河壩(ba)(ba)(ba)(ba)采用均(jun)質土(tu)壩(ba)(ba)(ba)(ba),大壩(ba)(ba)(ba)(ba)壩(ba)(ba)(ba)(ba)頂(ding)(ding)(ding)高程(cheng)為852.0米(mi)(mi)(mi)(mi),大壩(ba)(ba)(ba)(ba)的(de)壩(ba)(ba)(ba)(ba)頂(ding)(ding)(ding)寬度為10米(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)頂(ding)(ding)(ding)上(shang)游(you)側設(she)(she)置1.2米(mi)(mi)(mi)(mi)高的(de)混凝土(tu)防浪(lang)墻,墻頂(ding)(ding)(ding)高程(cheng)852.2米(mi)(mi)(mi)(mi),大壩(ba)(ba)(ba)(ba)最低點開挖(wa)高程(cheng)為789.0米(mi)(mi)(mi)(mi),最大壩(ba)(ba)(ba)(ba)頂(ding)(ding)(ding)高63.0米(mi)(mi)(mi)(mi),壩(ba)(ba)(ba)(ba)頂(ding)(ding)(ding)總長504.43米(mi)(mi)(mi)(mi);壩(ba)(ba)(ba)(ba)體上(shang)游(you)坡為1:2.75和(he)(he)1:3,在(zai)高程(cheng)830米(mi)(mi)(mi)(mi)處(chu)(chu)設(she)(she)寬3.0米(mi)(mi)(mi)(mi)馬道(dao)(dao);下(xia)游(you)壩(ba)(ba)(ba)(ba)坡為1:2.5,在(zai)高程(cheng)835 米(mi)(mi)(mi)(mi)和(he)(he)818 米(mi)(mi)(mi)(mi)處(chu)(chu)設(she)(she)寬2.0 米(mi)(mi)(mi)(mi)的(de)馬道(dao)(dao),在(zai)800.5 米(mi)(mi)(mi)(mi)處(chu)(chu)設(she)(she)棱體排水平(ping)臺,最大壩(ba)(ba)(ba)(ba)底寬為351 米(mi)(mi)(mi)(mi)。壩(ba)(ba)(ba)(ba)體上(shang)游(you)壩(ba)(ba)(ba)(ba)坡在(zai)高程(cheng)812.5 米(mi)(mi)(mi)(mi)以上(shang)采用厚0.4 米(mi)(mi)(mi)(mi)的(de)干砌石(shi)護坡,下(xia)游(you)壩(ba)(ba)(ba)(ba)坡采用漿砌石(shi)網(wang)格內植草皮護坡。
設計施工
南(nan)溝門(men)水(shui)(shui)利(li)樞紐導(dao)流(liu)(liu)建(jian)筑(zhu)物按(an)4級設計,圍(wei)堰(yan)導(dao)流(liu)(liu)標準按(an)20年一遇洪(hong)水(shui)(shui)考慮。設計采用(yong)河道一次斷(duan)(duan)流(liu)(liu)、圍(wei)堰(yan)擋水(shui)(shui)、隧(sui)(sui)洞(dong)(dong)(dong)過流(liu)(liu)的(de)(de)(de)導(dao)流(liu)(liu)方(fang)式。導(dao)流(liu)(liu)洞(dong)(dong)(dong)布(bu)置(zhi)(zhi)在(zai)(zai)右岸,施(shi)(shi)工(gong)期(qi)作(zuo)為導(dao)流(liu)(liu)洞(dong)(dong)(dong)使(shi)用(yong),工(gong)程(cheng)運用(yong)期(qi)經過改建(jian)作(zuo)為匯洪(hong)洞(dong)(dong)(dong),屬永(yong)臨結(jie)合(he)的(de)(de)(de)建(jian)筑(zhu)物。導(dao)流(liu)(liu)隧(sui)(sui)洞(dong)(dong)(dong)全長795米(mi)(mi)(mi)(mi)(mi),進口(kou)高(gao)程(cheng)803.00米(mi)(mi)(mi)(mi)(mi),出(chu)口(kou)高(gao)程(cheng)795.05米(mi)(mi)(mi)(mi)(mi),隧(sui)(sui)洞(dong)(dong)(dong)斷(duan)(duan)面型式為圓(yuan)拱直墻型,斷(duan)(duan)面尺寸6×8米(mi)(mi)(mi)(mi)(mi)。設計方(fang)案中,圍(wei)堰(yan)經土(tu)(tu)石(shi)方(fang)平(ping)衡計算采用(yong)土(tu)(tu)石(shi)圍(wei)堰(yan)。設計的(de)(de)(de)上游(you)(you)圍(wei)堰(yan)頂(ding)(ding)(ding)高(gao)813.50米(mi)(mi)(mi)(mi)(mi),頂(ding)(ding)(ding)寬6.0米(mi)(mi)(mi)(mi)(mi),堰(yan)頂(ding)(ding)(ding)總(zong)長236.0米(mi)(mi)(mi)(mi)(mi),最大(da)堰(yan)高(gao)21.5米(mi)(mi)(mi)(mi)(mi)。下游(you)(you)圍(wei)堰(yan)布(bu)置(zhi)(zhi)于導(dao)流(liu)(liu)洞(dong)(dong)(dong)出(chu)口(kou)上游(you)(you)約800米(mi)(mi)(mi)(mi)(mi),最大(da)堰(yan)高(gao)5.5米(mi)(mi)(mi)(mi)(mi),圍(wei)堰(yan)頂(ding)(ding)(ding)寬6.0 米(mi)(mi)(mi)(mi)(mi),堰(yan)頂(ding)(ding)(ding)總(zong)長62米(mi)(mi)(mi)(mi)(mi)。設計方(fang)案中將施(shi)(shi)工(gong)管(guan)理區和生(sheng)(sheng)產福利(li)區布(bu)置(zhi)(zhi)在(zai)(zai)壩軸線下游(you)(you)600 米(mi)(mi)(mi)(mi)(mi)至800米(mi)(mi)(mi)(mi)(mi)的(de)(de)(de)葫(hu)蘆河右岸,沿葫(hu)蘆河布(bu)置(zhi)(zhi);成品料(liao)堆料(liao)場、砼拌合(he)系統、機械修(xiu)配(pei)廠及倉庫儲運等系統布(bu)置(zhi)(zhi)在(zai)(zai)壩軸線下游(you)(you)泄洪(hong)洞(dong)(dong)(dong)出(chu)口(kou)附(fu)近(jin)的(de)(de)(de)河岸灘(tan)地上,沿葫(hu)蘆河兩岸布(bu)置(zhi)(zhi)。在(zai)(zai)溢洪(hong)道進口(kou)附(fu)近(jin)布(bu)設輔助生(sheng)(sheng)產企業,以滿足溢洪(hong)道的(de)(de)(de)施(shi)(shi)工(gong)要求。
南溝門水庫的棄(qi)渣(zha)(zha)場位(wei)于大(da)壩(ba)(ba)下(xia)(xia)游(you)的南溝內,共布置有Ⅰ、Ⅱ兩個棄(qi)渣(zha)(zha)壩(ba)(ba),棄(qi)渣(zha)(zha)壩(ba)(ba)壩(ba)(ba)型(xing)為碾壓土石壩(ba)(ba),攔渣(zha)(zha)壩(ba)(ba)設計防洪標(biao)準取用30年,根(gen)據棄(qi)渣(zha)(zha)高(gao)(gao)度和搓渣(zha)(zha)庫容,Ⅰ棄(qi)渣(zha)(zha)壩(ba)(ba)高(gao)(gao)度為15.0米,Ⅱ棄(qi)渣(zha)(zha)壩(ba)(ba)高(gao)(gao)度為18.50米,壩(ba)(ba)頂寬度均為3米,上游(you)坡率1:2.2,下(xia)(xia)游(you)坡率1:2.0。
南溝門水利(li)樞紐(niu)工程總工期約為44個月(yue)(yue),計劃于2014年(nian)6月(yue)(yue)完工。