陜西省延安市南溝門(men)水(shui)(shui)利樞紐(niu)(niu)工程(cheng)由蘆(lu)河南溝水(shui)(shui)庫(ku)樞紐(niu)(niu)、洛河引(yin)(yin)洛入(ru)葫工程(cheng)兩部分組成,其中引(yin)(yin)洛入(ru)葫工程(cheng)包括馬(ma)家河低(di)壩引(yin)(yin)水(shui)(shui)樞紐(niu)(niu)和輸水(shui)(shui)隧洞。
地理位置
南溝門水利(li)樞紐工程位(wei)于陜西省延安(an)市(shi)黃陵縣(xian)境內,水庫壩址位(wei)于葫(hu)蘆河河口(kou)上游3公(gong)(gong)里(li)處的南溝門附近,距(ju)黃陵城(cheng)約(yue)25公(gong)(gong)里(li),距(ju)洛川縣(xian)城(cheng)約(yue)17公(gong)(gong)里(li),距(ju)延安(an)市(shi)約(yue)120公(gong)(gong)里(li),距(ju)西安(an)市(shi)約(yue)180 公(gong)(gong)里(li)。
等級
南溝(gou)門水(shui)(shui)庫樞紐總庫容2.006億立(li)方米,為(wei)Ⅱ等(deng)、大(da)(2)型工程,樞紐主(zhu)要建(jian)(jian)筑(zhu)(zhu)物(wu)(wu)由攔河壩(ba)(ba)、導流(liu)泄洪(hong)洞、溢(yi)洪(hong)道、引水(shui)(shui)發電(dian)洞、壩(ba)(ba)后(hou)電(dian)站(zhan)等(deng)五(wu)部分組成。其中大(da)壩(ba)(ba)、導流(liu)泄洪(hong)洞、溢(yi)洪(hong)道為(wei)2級(ji)建(jian)(jian)筑(zhu)(zhu)物(wu)(wu);引水(shui)(shui)發電(dian)洞電(dian)因供水(shui)(shui)對象的重要性(xing)也(ye)定為(wei)2級(ji)建(jian)(jian)筑(zhu)(zhu)物(wu)(wu),壩(ba)(ba)后(hou)電(dian)站(zhan)屬5級(ji)建(jian)(jian)筑(zhu)(zhu)物(wu)(wu)。
南溝門水(shui)庫攔河壩采用(yong)均質土(tu)壩,大壩壩頂(ding)高程(cheng)(cheng)為(wei)(wei)852.0米(mi)(mi)(mi),大壩的(de)(de)壩頂(ding)寬(kuan)度(du)為(wei)(wei)10米(mi)(mi)(mi),壩頂(ding)上(shang)(shang)(shang)游(you)側設(she)置1.2米(mi)(mi)(mi)高的(de)(de)混凝土(tu)防浪墻(qiang),墻(qiang)頂(ding)高程(cheng)(cheng)852.2米(mi)(mi)(mi),大壩最低點開挖高程(cheng)(cheng)為(wei)(wei)789.0米(mi)(mi)(mi),最大壩頂(ding)高63.0米(mi)(mi)(mi),壩頂(ding)總(zong)長504.43米(mi)(mi)(mi);壩體(ti)(ti)上(shang)(shang)(shang)游(you)坡(po)(po)(po)為(wei)(wei)1:2.75和(he)1:3,在高程(cheng)(cheng)830米(mi)(mi)(mi)處設(she)寬(kuan)3.0米(mi)(mi)(mi)馬道(dao);下游(you)壩坡(po)(po)(po)為(wei)(wei)1:2.5,在高程(cheng)(cheng)835 米(mi)(mi)(mi)和(he)818 米(mi)(mi)(mi)處設(she)寬(kuan)2.0 米(mi)(mi)(mi)的(de)(de)馬道(dao),在800.5 米(mi)(mi)(mi)處設(she)棱體(ti)(ti)排水(shui)平臺,最大壩底(di)寬(kuan)為(wei)(wei)351 米(mi)(mi)(mi)。壩體(ti)(ti)上(shang)(shang)(shang)游(you)壩坡(po)(po)(po)在高程(cheng)(cheng)812.5 米(mi)(mi)(mi)以上(shang)(shang)(shang)采用(yong)厚(hou)0.4 米(mi)(mi)(mi)的(de)(de)干砌石(shi)護坡(po)(po)(po),下游(you)壩坡(po)(po)(po)采用(yong)漿砌石(shi)網格內植草皮護坡(po)(po)(po)。
設計施工
南溝門(men)水(shui)利樞紐(niu)導流(liu)建筑物按4級設計(ji)(ji),圍(wei)堰(yan)(yan)導流(liu)標準按20年一遇(yu)洪水(shui)考慮。設計(ji)(ji)采用(yong)河(he)道(dao)一次斷流(liu)、圍(wei)堰(yan)(yan)擋(dang)水(shui)、隧(sui)洞(dong)(dong)(dong)過流(liu)的導流(liu)方(fang)式。導流(liu)洞(dong)(dong)(dong)布(bu)(bu)(bu)置(zhi)(zhi)在右岸,施工期作(zuo)為(wei)導流(liu)洞(dong)(dong)(dong)使用(yong),工程運用(yong)期經過改建作(zuo)為(wei)匯洪洞(dong)(dong)(dong),屬永臨結合的建筑物。導流(liu)隧(sui)洞(dong)(dong)(dong)全長(chang)795米(mi)(mi)(mi),進(jin)口(kou)(kou)高(gao)程803.00米(mi)(mi)(mi),出口(kou)(kou)高(gao)程795.05米(mi)(mi)(mi),隧(sui)洞(dong)(dong)(dong)斷面(mian)(mian)型式為(wei)圓(yuan)拱直墻型,斷面(mian)(mian)尺寸6×8米(mi)(mi)(mi)。設計(ji)(ji)方(fang)案中(zhong)(zhong),圍(wei)堰(yan)(yan)經土(tu)(tu)石方(fang)平(ping)衡(heng)計(ji)(ji)算(suan)采用(yong)土(tu)(tu)石圍(wei)堰(yan)(yan)。設計(ji)(ji)的上(shang)游(you)(you)圍(wei)堰(yan)(yan)頂(ding)(ding)高(gao)813.50米(mi)(mi)(mi),頂(ding)(ding)寬6.0米(mi)(mi)(mi),堰(yan)(yan)頂(ding)(ding)總(zong)長(chang)236.0米(mi)(mi)(mi),最大堰(yan)(yan)高(gao)21.5米(mi)(mi)(mi)。下(xia)(xia)游(you)(you)圍(wei)堰(yan)(yan)布(bu)(bu)(bu)置(zhi)(zhi)于導流(liu)洞(dong)(dong)(dong)出口(kou)(kou)上(shang)游(you)(you)約800米(mi)(mi)(mi),最大堰(yan)(yan)高(gao)5.5米(mi)(mi)(mi),圍(wei)堰(yan)(yan)頂(ding)(ding)寬6.0 米(mi)(mi)(mi),堰(yan)(yan)頂(ding)(ding)總(zong)長(chang)62米(mi)(mi)(mi)。設計(ji)(ji)方(fang)案中(zhong)(zhong)將施工管(guan)理區和生產福利區布(bu)(bu)(bu)置(zhi)(zhi)在壩(ba)軸線下(xia)(xia)游(you)(you)600 米(mi)(mi)(mi)至800米(mi)(mi)(mi)的葫(hu)(hu)蘆河(he)右岸,沿葫(hu)(hu)蘆河(he)布(bu)(bu)(bu)置(zhi)(zhi);成(cheng)品料(liao)堆料(liao)場(chang)、砼拌(ban)合系(xi)統、機械(xie)修配廠及倉庫儲運等系(xi)統布(bu)(bu)(bu)置(zhi)(zhi)在壩(ba)軸線下(xia)(xia)游(you)(you)泄洪洞(dong)(dong)(dong)出口(kou)(kou)附近(jin)的河(he)岸灘地上(shang),沿葫(hu)(hu)蘆河(he)兩岸布(bu)(bu)(bu)置(zhi)(zhi)。在溢洪道(dao)進(jin)口(kou)(kou)附近(jin)布(bu)(bu)(bu)設輔(fu)助生產企業(ye),以(yi)滿足溢洪道(dao)的施工要求。
南溝門水庫的(de)棄渣(zha)(zha)(zha)場位于大壩(ba)(ba)下游的(de)南溝內,共布置有(you)Ⅰ、Ⅱ兩個棄渣(zha)(zha)(zha)壩(ba)(ba),棄渣(zha)(zha)(zha)壩(ba)(ba)壩(ba)(ba)型為碾壓(ya)土(tu)石壩(ba)(ba),攔渣(zha)(zha)(zha)壩(ba)(ba)設計防(fang)洪標準取用30年(nian),根據棄渣(zha)(zha)(zha)高度(du)(du)和搓渣(zha)(zha)(zha)庫容,Ⅰ棄渣(zha)(zha)(zha)壩(ba)(ba)高度(du)(du)為15.0米,Ⅱ棄渣(zha)(zha)(zha)壩(ba)(ba)高度(du)(du)為18.50米,壩(ba)(ba)頂寬度(du)(du)均為3米,上游坡率1:2.2,下游坡率1:2.0。
南溝門水利樞紐(niu)工程總工期約為44個月,計劃于2014年6月完工。