于橋水(shui)庫位于天津市薊縣(xian)城東,是國家重點大型水(shui)庫之一,水(shui)庫壩址建于薊運河(he)左支(zhi)流(liu)州河(he)出(chu)口處。
控制流(liu)(liu)(liu)域(yu)面(mian)積(ji)2060 k㎡,占整個州(zhou)河流(liu)(liu)(liu)域(yu)面(mian)積(ji)的96%。州(zhou)河由沙河、淋河、黎(li)河三大(da)(da)(da)支(zhi)流(liu)(liu)(liu)匯(hui)合而(er)成,各支(zhi)流(liu)(liu)(liu)上(shang)游(you)(you)溝澗甚多(duo),支(zhi)流(liu)(liu)(liu)分散成輻射(she)狀匯(hui)集于(yu)(yu)州(zhou)河盆地,水(shui)庫(ku)(ku)庫(ku)(ku)區即(ji)位于(yu)(yu)該盆地,最大(da)(da)(da)回水(shui)長(chang)東西約(yue)30km,南北寬8km,最大(da)(da)(da)淹(yan)(yan)沒面(mian)積(ji)250k㎡(正常蓄水(shui)位時淹(yan)(yan)沒面(mian)積(ji)86.8 k㎡)。州(zhou)河流(liu)(liu)(liu)域(yu)境內雨量充(chong)沛,多(duo)年(nian)平均降雨750mm,多(duo)年(nian)平均徑流(liu)(liu)(liu)量5.06億m3。水(shui)庫(ku)(ku)運用初期,曾出(chu)現過壩(ba)下游(you)(you)大(da)(da)(da)面(mian)積(ji)沼澤化(hua)、管涌等現象,唐山(shan)大(da)(da)(da)地震后,主河床附(fu)近壩(ba)段壩(ba)坡腳產生裂縫,壩(ba)基出(chu)現砂層液化(hua)現象。
建立時間
該庫始建于1959年(nian)(nian),1960年(nian)(nian)7月完成(cheng)第—期(qi)工(gong)(gong)程(cheng)(cheng)(攔河壩(ba)(ba)、泄(xie)洪(hong)洞(dong))。1965年(nian)(nian)續建開挖溢洪(hong)道(實際只(zhi)開挖至(zhi)23.0米(mi)高(gao)程(cheng)(cheng))。水(shui)庫大(da)壩(ba)(ba)為(wei)一級建筑(zhu)物,按千年(nian)(nian)一遇(yu)洪(hong)水(shui)設(she)計(ji),最(zui)大(da)洪(hong)水(shui)校核,抗(kang)震(zhen)按8度設(she)防(fang)。水(shui)庫正(zheng)常蓄水(shui)位(wei)(wei)21.16米(mi),校核洪(hong)水(shui)位(wei)(wei)27.72米(mi)。“75.8”河南大(da)水(shui)后(hou),水(shui)庫被(bei)列為(wei)病險(xian)水(shui)庫,因此按千年(nian)(nian)一遇(yu)設(she)計(ji),最(zui)大(da)可能洪(hong)水(shui)校核標準對(dui)水(shui)庫進(jin)行(xing)除險(xian)加(jia)固(gu),設(she)計(ji)洪(hong)水(shui)位(wei)(wei)25.62米(mi),洪(hong)峰(feng)流量8327立方(fang)(fang)米(mi)/秒,校核洪(hong)水(shui)位(wei)(wei)27.72米(mi),洪(hong)峰(feng)流量17960立方(fang)(fang)米(mi)/秒。為(wei)保(bao)證引灤工(gong)(gong)程(cheng)(cheng)輸(shu)水(shui)1982至(zhi)1983年(nian)(nian)對(dui)大(da)壩(ba)(ba)實施(shi)了加(jia)高(gao)壩(ba)(ba)頂、加(jia)固(gu)壩(ba)(ba)坡及壩(ba)(ba)基截滲(shen)等工(gong)(gong)程(cheng)(cheng)措施(shi)。1995年(nian)(nian)1996年(nian)(nian)采用高(gao)噴(pen)防(fang)滲(shen)墻(qiang)結合壩(ba)(ba)后(hou)壓(ya)(ya)重的方(fang)(fang)法再(zai)(zai)次對(dui)大(da)壩(ba)(ba)進(jin)行(xing)了局部(bu)加(jia)固(gu)處(chu)理(li)。2001年(nian)(nian)至(zhi)2003年(nian)(nian)再(zai)(zai)次對(dui)大(da)壩(ba)(ba)進(jin)行(xing)加(jia)固(gu)處(chu)理(li)(包括420米(mi)的防(fang)滲(shen)墻(qiang),高(gao)壓(ya)(ya)噴(pen)射灌漿(jiang)、補噴(pen)、接觸灌漿(jiang)、現(xian)澆砼(tong)防(fang)浪墻(qiang)、減壓(ya)(ya)溝回填、壩(ba)(ba)后(hou)壓(ya)(ya)重、迎水(shui)坡護(hu)砌)。
工程構造
水庫樞紐(niu)工程有攔(lan)河壩(ba)(ba)、放(fang)水洞、溢洪(hong)道、水電站。攔(lan)河壩(ba)(ba)為均質(zhi)土壩(ba)(ba),全(quan)長2222m,最大壩(ba)(ba)高24m,壩(ba)(ba)頂(ding)高程28.72m。放(fang)水洞(兼發電洞)洞徑5m,壩(ba)(ba)后電站設貫流式機組四(si)臺(tai),總(zong)裝機5000千瓦。溢洪(hong)道為開敞式堰閘,八孔閘門,凈寬80m,最大泄(xie)洪(hong)能力4138 m3/s。
水文特性
總(zong)庫(ku)容15.59億立方(fang)米,正常(chang)蓄水(shui)(shui)位21.16米(大沽(gu)(gu)),汛(xun)限(xian)水(shui)(shui)位19.87米,死水(shui)(shui)位15米。水(shui)(shui)庫(ku)下游直接影響范圍有薊縣、寶(bao)坻、寧河、玉田、漢沽(gu)(gu)等各(ge)縣(區)的低洼地區近百(bai)萬人口,300余(yu)萬畝(mu)耕(geng)地。
風光特產
風景秀麗、群山(shan)(shan)環(huan)繞的(de)于(yu)橋水庫坐落在薊(ji)(ji)縣(xian)城東,又名翠(cui)屏(ping)(ping)湖(hu),因南依翠(cui)屏(ping)(ping)山(shan)(shan)而得名。翠(cui)屏(ping)(ping)湖(hu)水面寬闊(kuo),東西(xi)(xi)長30公里(li),南北(bei)最寬處15公里(li)。登翠(cui)屏(ping)(ping)山(shan)(shan)俯瞰,煙波浩淼,水天一色;蕩舟(zhou)湖(hu)上(shang),鷗浮(fu)上(shang)下(xia),魚戲東西(xi)(xi)。南岸(an)(an)的(de)翠(cui)屏(ping)(ping)山(shan)(shan)綠樹成(cheng)蔭,花(hua)果滿園(yuan),葡萄壓(ya)枝。象一幅(fu)五彩(cai)斑斕的(de)畫卷。北(bei)岸(an)(an)山(shan)(shan)中(zhong)古松蒼勁挺拔(ba),建筑鱗次櫛比,層(ceng)次豐(feng)富多變(bian)(bian)。西(xi)(xi)岸(an)(an)大(da)堤橫(heng)臥,綠樹緣堤,遠山(shan)(shan)如黛,云煙飄浮(fu),極盡(jin)幻(huan)變(bian)(bian)幽(you)深之趣。翠(cui)屏(ping)(ping)湖(hu)盛(sheng)產魚蝦,尤以金翅(chi)鯉魚聞名天下(xia),據《薊(ji)(ji)縣(xian)志》載:“鯉魚產于(yu)薊(ji)(ji)運河者皆金鱗赭尾。”而今(jin)這種(zhong)曾(ceng)為皇帝(di)貢品的(de)“御膳鯉”巳成(cheng)為普通游人的(de)盤(pan)中(zhong)珍品。
翠(cui)(cui)屏湖(hu)夏(xia)季氣候涼爽(shuang)(shuang),是(shi)理(li)想的(de)(de)避暑勝地。盛夏(xia)炎炎,眺翠(cui)(cui)亭旁的(de)(de)平灘(tan)上,一群(qun)群(qun)穿著游(you)泳衣的(de)(de)游(you)人或(huo)坐或(huo)臥,悠然自(zi)得地沐浴(yu)著陽光,人們紛紛下水(shui)游(you)泳,任涼爽(shuang)(shuang)的(de)(de)湖(hu)水(shui)沖散暑熱。水(shui)中(zhong)魚蝦避開了暢(chang)游(you)的(de)(de)人群(qun),往來(lai)于紅蕖綠草之間,招來(lai)了萬釣千竿。冬天,這(zhe)里(li)是(shi)滑冰、賞雪(xue)的(de)(de)理(li)想場所。整(zheng)個翠(cui)(cui)屏湖(hu)雪(xue)蓋(gai)冰封,銀裝素裹,滑冰愛好(hao)者紛至沓來(lai)。翠(cui)(cui)屏湖(hu)南岸多(duo)(duo)農家院旅店及(ji)活(huo)魚館,是(shi)都市人周末(mo)節假的(de)(de)絕佳去(qu)處(chu)。水(shui)質優良(liang)的(de)(de)翠(cui)(cui)屏湖(hu)湖(hu)域內有(you)120多(duo)(duo)種(zhong)鳥(niao)類。每年(nian)4月初,水(shui)鳥(niao)多(duo)(duo)達(da)2萬多(duo)(duo)只(zhi),其中(zhong)有(you)被國(guo)家列(lie)為重點(dian)保護的(de)(de)大(da)天鵝、白鸛、白琵(pi)鷺(lu)等(deng)八種(zhong)珍禽。
生態特征
于橋水庫屬富營養型水體,冬季稍好,夏季處于營養化初級階段,主要超標物是被污染的(de)(de)(de)河流(liu)(liu)帶入大(da)量(liang)(liang)(liang)氮(dan)、磷(lin);流(liu)(liu)域內年均溫(wen)為(wei)(wei)10.4~11.5℃、最(zui)(zui)熱月均溫(wen)為(wei)(wei)25.4℃(7月),極端最(zui)(zui)高溫(wen)度(du)(du)為(wei)(wei)41.2℃,最(zui)(zui)冷(leng)月均溫(wen)為(wei)(wei)-6.88℃(1月)、極端最(zui)(zui)低溫(wen)為(wei)(wei)-28.6℃,無(wu)霜期170—195天,溫(wen)度(du)(du)晝夜差別(bie)及(ji)地(di)區分(fen)布差異也較大(da),總的(de)(de)(de)狀況是(shi)溫(wen)度(du)(du)從北向南遞升。浮(fu)游(you)植(zhi)(zhi)物(wu)(wu):藻(zao)(zao)(zao)(zao)類(lei)(lei)(lei)7門(men)58種(zhong)(zhong)(zhong)(zhong),硅藻(zao)(zao)(zao)(zao)20種(zhong)(zhong)(zhong)(zhong),綠藻(zao)(zao)(zao)(zao)18種(zhong)(zhong)(zhong)(zhong),藍(lan)藻(zao)(zao)(zao)(zao)15種(zhong)(zhong)(zhong)(zhong),金藻(zao)(zao)(zao)(zao)2種(zhong)(zhong)(zhong)(zhong),甲(jia)藻(zao)(zao)(zao)(zao)、裸(luo)藻(zao)(zao)(zao)(zao)、黃藻(zao)(zao)(zao)(zao)各1種(zhong)(zhong)(zhong)(zhong),于(yu)橋水(shui)(shui)(shui)庫(ku)藻(zao)(zao)(zao)(zao)類(lei)(lei)(lei)的(de)(de)(de)優勢(shi)種(zhong)(zhong)(zhong)(zhong)在1、4、5月為(wei)(wei)金藻(zao)(zao)(zao)(zao)、硅藻(zao)(zao)(zao)(zao);而6、7、10月為(wei)(wei)硅藻(zao)(zao)(zao)(zao)、藍(lan)藻(zao)(zao)(zao)(zao);8、9月為(wei)(wei)藍(lan)藻(zao)(zao)(zao)(zao),所以(yi)(yi),于(yu)橋水(shui)(shui)(shui)庫(ku)的(de)(de)(de)優勢(shi)種(zhong)(zhong)(zhong)(zhong)屬硅藻(zao)(zao)(zao)(zao)、藍(lan)藻(zao)(zao)(zao)(zao)型,主(zhu)要的(de)(de)(de)優勢(shi)種(zhong)(zhong)(zhong)(zhong)為(wei)(wei)惠(hui)氏(shi)微囊藻(zao)(zao)(zao)(zao)、克(ke)羅(luo)頓脆桿藻(zao)(zao)(zao)(zao)。浮(fu)游(you)動(dong)物(wu)(wu)45種(zhong)(zhong)(zhong)(zhong),其(qi)(qi)(qi)中(zhong)(zhong)輪蟲類(lei)(lei)(lei)種(zhong)(zhong)(zhong)(zhong)數(shu)(shu)最(zui)(zui)多(duo),輪足種(zhong)(zhong)(zhong)(zhong)數(shu)(shu)最(zui)(zui)少(shao)(shao),游(you)動(dong)物(wu)(wu)生(sheng)(sheng)物(wu)(wu)量(liang)(liang)(liang)有(you)明顯的(de)(de)(de)季節變化、總生(sheng)(sheng)物(wu)(wu)量(liang)(liang)(liang)在9月最(zui)(zui)高。底棲動(dong)物(wu)(wu)42種(zhong)(zhong)(zhong)(zhong)(部分(fen)種(zhong)(zhong)(zhong)(zhong)類(lei)(lei)(lei)只鑒定至科、屬,故實(shi)際數(shu)(shu)量(liang)(liang)(liang)超過(guo)此數(shu)(shu),隸屬8門(men)6綱38屬),種(zhong)(zhong)(zhong)(zhong)類(lei)(lei)(lei)最(zui)(zui)多(duo)的(de)(de)(de)是(shi)水(shui)(shui)(shui)生(sheng)(sheng)昆蟲23種(zhong)(zhong)(zhong)(zhong),其(qi)(qi)(qi)中(zhong)(zhong)又(you)以(yi)(yi)搖(yao)(yao)(yao)蚊(wen)(wen)幼(you)蟲居(ju)多(duo)(16種(zhong)(zhong)(zhong)(zhong)),其(qi)(qi)(qi)次(ci)是(shi)軟體動(dong)物(wu)(wu)11種(zhong)(zhong)(zhong)(zhong),環節動(dong)物(wu)(wu)共(gong)獲6種(zhong)(zhong)(zhong)(zhong),甲(jia)殼類(lei)(lei)(lei)僅獲2種(zhong)(zhong)(zhong)(zhong)蝦類(lei)(lei)(lei),優勢(shi)種(zhong)(zhong)(zhong)(zhong)為(wei)(wei)霍甫水(shui)(shui)(shui)絲蚓、蘇氏(shi)尾腮(sai)蚓、褐斑菱跗搖(yao)(yao)(yao)蚊(wen)(wen)、花紋前(qian)突搖(yao)(yao)(yao)蚊(wen)(wen)、紅德永搖(yao)(yao)(yao)蚊(wen)(wen)、離恩(en)菲(fei)搖(yao)(yao)(yao)蚊(wen)(wen)和羽搖(yao)(yao)(yao)蚊(wen)(wen);底棲動(dong)物(wu)(wu)生(sheng)(sheng)物(wu)(wu)量(liang)(liang)(liang)由5個主(zhu)要類(lei)(lei)(lei)群(qun)組(zu)成(cheng),軟體動(dong)物(wu)(wu)居(ju)首位,搖(yao)(yao)(yao)蚊(wen)(wen)幼(you)蟲次(ci)之,再次(ci)為(wei)(wei)環節動(dong)物(wu)(wu),除上述(shu)三(san)大(da)類(lei)(lei)(lei)群(qun)外(wai)、還包括甲(jia)介(jie)類(lei)(lei)(lei)及(ji)搖(yao)(yao)(yao)蚊(wen)(wen)以(yi)(yi)外(wai)的(de)(de)(de)其(qi)(qi)(qi)他水(shui)(shui)(shui)生(sheng)(sheng)昆蟲。水(shui)(shui)(shui)生(sheng)(sheng)維管植(zhi)(zhi)物(wu)(wu)31種(zhong)(zhong)(zhong)(zhong),分(fen)屬于(yu)16科20屬,屬世(shi)界廣播(bo)種(zhong)(zhong)(zhong)(zhong)淺水(shui)(shui)(shui)水(shui)(shui)(shui)生(sheng)(sheng)維管植(zhi)(zhi)物(wu)(wu),植(zhi)(zhi)物(wu)(wu)種(zhong)(zhong)(zhong)(zhong)類(lei)(lei)(lei)地(di)理成(cheng)分(fen)單純,種(zhong)(zhong)(zhong)(zhong)類(lei)(lei)(lei)少(shao)(shao),屬暖溫(wen)帶幼(you)年期人工水(shui)(shui)(shui)庫(ku)湖沼(zhao)水(shui)(shui)(shui)生(sheng)(sheng)植(zhi)(zhi)被,其(qi)(qi)(qi)中(zhong)(zhong)以(yi)(yi)微齒(chi)眼(yan)子菜(cai)、馬(ma)來眼(yan)子菜(cai)、荇菜(cai)、正(zheng)丘菱、菹(zu)草為(wei)(wei)優勢(shi)種(zhong)(zhong)(zhong)(zhong);按水(shui)(shui)(shui)生(sheng)(sheng)植(zhi)(zhi)物(wu)(wu)生(sheng)(sheng)態分(fen)類(lei)(lei)(lei)、有(you)沉(chen)水(shui)(shui)(shui)植(zhi)(zhi)物(wu)(wu)生(sheng)(sheng)態類(lei)(lei)(lei)型(14種(zhong)(zhong)(zhong)(zhong))、浮(fu)葉植(zhi)(zhi)物(wu)(wu)生(sheng)(sheng)態類(lei)(lei)(lei)型(4種(zhong)(zhong)(zhong)(zhong))漂浮(fu)植(zhi)(zhi)物(wu)(wu)生(sheng)(sheng)態類(lei)(lei)(lei)形(2種(zhong)(zhong)(zhong)(zhong))、挺(ting)水(shui)(shui)(shui)植(zhi)(zhi)物(wu)(wu)生(sheng)(sheng)態類(lei)(lei)(lei)型(11種(zhong)(zhong)(zhong)(zhong))。1987—1988年間共(gong)采到魚(yu)(yu)(yu)類(lei)(lei)(lei)34種(zhong)(zhong)(zhong)(zhong),種(zhong)(zhong)(zhong)(zhong)類(lei)(lei)(lei)的(de)(de)(de)組(zu)成(cheng)存在差異,1988年缺(que)少(shao)(shao)似(si)鱭及(ji)似(si)鳊、烏(wu)鱧(li)、黃顙(sang)魚(yu)(yu)(yu)產量(liang)(liang)(liang)上升、小雜魚(yu)(yu)(yu)中(zhong)(zhong)麥穗(sui)魚(yu)(yu)(yu)增加,鯉(li)魚(yu)(yu)(yu)基本一致,翹嘴紅鲌減(jian)少(shao)(shao)、白鰱、花鏈稍有(you)增加.與(yu)投(tou)放魚(yu)(yu)(yu)苗有(you)關;繁(fan)殖特(te)性(xing),性(xing)成(cheng)熟(shu)年齡(ling):1齡(ling)性(xing)成(cheng)熟(shu)的(de)(de)(de)有(you)鯽魚(yu)(yu)(yu)、麥穗(sui)魚(yu)(yu)(yu)、子棱櫛、鰕虎魚(yu)(yu)(yu)、圓尾斗魚(yu)(yu)(yu)共(gong)5種(zhong)(zhong)(zhong)(zhong),2齡(ling)性(xing)成(cheng)熟(shu)的(de)(de)(de)有(you)刺鰍、中(zhong)(zhong)華多(duo)刺魚(yu)(yu)(yu)、泥鰍、興凱鮈、中(zhong)(zhong)華鳑、棒花魚(yu)(yu)(yu)、黃顙(sang)魚(yu)(yu)(yu)共(gong)7種(zhong)(zhong)(zhong)(zhong);3齡(ling)性(xing)成(cheng)熟(shu)的(de)(de)(de)有(you)紅鰭鲌、鯉(li)、青梢(shao)紅鲌、翹嘴紅鲌、鯰魚(yu)(yu)(yu)、烏(wu)鱧(li)、鱖魚(yu)(yu)(yu)、黃鱔(shan)共(gong)8種(zhong)(zhong)(zhong)(zhong)種(zhong)(zhong)(zhong)(zhong);4齡(ling)性(xing)成(cheng)熟(shu)的(de)(de)(de)有(you)鰓魚(yu)(yu)(yu)1種(zhong)(zhong)(zhong)(zhong)魚(yu)(yu)(yu)類(lei)(lei)(lei)產卵(luan)期主(zhu)要集中(zhong)(zhong)在5—7月、秋、冬季無(wu)魚(yu)(yu)(yu)類(lei)(lei)(lei)產卵(luan)。