簡介
該湖濱公(gong)園(yuan)采(cai)用傳(chuan)統造園(yuan)手法,堆(dui)山砌石(shi),建(jian)有各(ge)式亭(ting)閣(ge),輔(fu)有寬敞的草(cao)坪(ping),種植各(ge)種花草(cao)樹木,使(shi)其四周綠(lv)樹成蔭,小溪流(liu)水,鳥(niao)語花香。
該園(yuan)現已建成4個功(gong)能區(qu),即游(you)樂園(yuan)區(qu)、老年活動區(qu)、動物園(yuan)區(qu)、管理區(qu)。園(yuan)內有“激流勇進”;占(zhan)地(di)(di)5000平方米的獅虎山(shan)以及(ji)占(zhan)地(di)(di)1120平方米憩園(yuan)。
改造工程的規劃設計
水系統現狀及問題
盤(pan)(pan)錦(jin)市(shi)(shi)(shi)(shi)(shi)是(shi)(shi)(shi)中國(guo)濕(shi)地(di)(di)(di)之都,位(wei)于渤海(hai)北部,遼寧省西南部,遼河(he)(he)(he)三角(jiao)洲中心(xin)地(di)(di)(di)帶。但是(shi)(shi)(shi)按照(zhao)以往傳(chuan)統建(jian)城(cheng)(cheng)理念,盤(pan)(pan)錦(jin)市(shi)(shi)(shi)(shi)(shi)開發強度不(bu)(bu)合理等諸多(duo)因(yin)素,導(dao)致(zhi)了很多(duo)“城(cheng)(cheng)市(shi)(shi)(shi)(shi)(shi)病”的(de)(de)產生(sheng)。主(zhu)要(yao)表現在(zai)水(shui)(shui)(shui)(shui)資源量(liang)嚴重不(bu)(bu)足(zu),人均(jun)占(zhan)有(you)(you)(you)水(shui)(shui)(shui)(shui)資源量(liang)(不(bu)(bu)含入境水(shui)(shui)(shui)(shui)量(liang))262 立方米,不(bu)(bu)足(zu)我國(guo)人均(jun)占(zhan)有(you)(you)(you)量(liang)的(de)(de)1 /8,是(shi)(shi)(shi)全國(guo)50多(duo)個嚴重缺(que)水(shui)(shui)(shui)(shui)城(cheng)(cheng)市(shi)(shi)(shi)(shi)(shi)之一(yi);地(di)(di)(di)下(xia)水(shui)(shui)(shui)(shui)開采接近極限,近二十(shi)幾年(nian)來的(de)(de)大量(liang)開采,地(di)(di)(di)下(xia)水(shui)(shui)(shui)(shui)位(wei)呈區域性(xing)持續下(xia)降(jiang)。每年(nian)下(xia)降(jiang)1 m ~ 5.5 m,已形成多(duo)個地(di)(di)(di)下(xia)水(shui)(shui)(shui)(shui)開采漏(lou)斗; 再生(sheng)水(shui)(shui)(shui)(shui)利用(yong)(yong)不(bu)(bu)足(zu),城(cheng)(cheng)市(shi)(shi)(shi)(shi)(shi)再生(sheng)水(shui)(shui)(shui)(shui)利用(yong)(yong)率不(bu)(bu)足(zu)14% ;另外(wai),水(shui)(shui)(shui)(shui)環境方面(mian)主(zhu)要(yao)是(shi)(shi)(shi)城(cheng)(cheng)市(shi)(shi)(shi)(shi)(shi)水(shui)(shui)(shui)(shui)體(ti)污染(ran)問題,城(cheng)(cheng)區大部分(fen)為截流(liu)(liu)式合流(liu)(liu)制(zhi),雨季徑流(liu)(liu)污染(ran)對河(he)(he)(he)流(liu)(liu)濕(shi)地(di)(di)(di)水(shui)(shui)(shui)(shui)質造(zao)成較大沖擊。由于按照(zhao)傳(chuan)統建(jian)城(cheng)(cheng)理念進行開發,城(cheng)(cheng)市(shi)(shi)(shi)(shi)(shi)土地(di)(di)(di)的(de)(de)利用(yong)(yong)及(ji)變(bian)化加劇了地(di)(di)(di)表溢流(liu)(liu)污染(ran),導(dao)致(zhi)城(cheng)(cheng)市(shi)(shi)(shi)(shi)(shi)水(shui)(shui)(shui)(shui)體(ti)水(shui)(shui)(shui)(shui)質惡化。現有(you)(you)(you)排(pai)(pai)水(shui)(shui)(shui)(shui)采用(yong)(yong)“快收快排(pai)(pai)”,雨水(shui)(shui)(shui)(shui)通過地(di)(di)(di)面(mian)徑流(liu)(liu)就近排(pai)(pai)往城(cheng)(cheng)市(shi)(shi)(shi)(shi)(shi)市(shi)(shi)(shi)(shi)(shi)政(zheng)管(guan)道(dao),后由泵站抽排(pai)(pai)至河(he)(he)(he)流(liu)(liu),大面(mian)積(ji)的(de)(de)不(bu)(bu)透水(shui)(shui)(shui)(shui)地(di)(di)(di)面(mian)導(dao)致(zhi)雨水(shui)(shui)(shui)(shui)匯(hui)流(liu)(liu)時間短(duan),匯(hui)流(liu)(liu)量(liang)大,綠化基本沒(mei)有(you)(you)(you)滯留調蓄能力,導(dao)致(zhi)下(xia)游排(pai)(pai)水(shui)(shui)(shui)(shui)壓(ya)力大。一(yi)方面(mian),盤(pan)(pan)錦(jin)市(shi)(shi)(shi)(shi)(shi)整體(ti)地(di)(di)(di)勢較低,常年(nian)受(shou)(shou)內澇和外(wai)洪的(de)(de)威(wei)脅,迫切(qie)需要(yao)通過海(hai)綿城(cheng)(cheng)市(shi)(shi)(shi)(shi)(shi)建(jian)設(she)提(ti)高防(fang)洪排(pai)(pai)澇能力。另一(yi)方面(mian),盤(pan)(pan)錦(jin)市(shi)(shi)(shi)(shi)(shi)的(de)(de)部分(fen)河(he)(he)(he)流(liu)(liu)、濕(shi)地(di)(di)(di)、湖泊(bo)等水(shui)(shui)(shui)(shui)體(ti)均(jun)不(bu)(bu)同程度的(de)(de)遭受(shou)(shou)污染(ran),迫切(qie)需要(yao)通過海(hai)綿城(cheng)(cheng)市(shi)(shi)(shi)(shi)(shi)建(jian)設(she)改善城(cheng)(cheng)市(shi)(shi)(shi)(shi)(shi)水(shui)(shui)(shui)(shui)環境;提(ti)升(sheng)城(cheng)(cheng)市(shi)(shi)(shi)(shi)(shi)形象,促進生(sheng)態文(wen)明建(jian)設(she)。
兩大海綿體系統
為了(le)解決如何通過海綿城(cheng)市的技術措(cuo)施(shi)及合理布(bu)局,實(shi)現道(dao)路和綠地(di)的滲水(shui)、蓄(xu)(xu)水(shui)、凈化(hua)功(gong)能(neng)(neng);對(dui)園區的水(shui)系進行合理的布(bu)局與處理,最終(zhong)實(shi)現蓄(xu)(xu)水(shui)功(gong)能(neng)(neng); 將現狀的魚塘打造(zao)為濕地(di),實(shi)現對(dui)水(shui)體(ti)的滯留、凈化(hua); 通過技術手(shou)段實(shi)現對(dui)湖泊的雨洪調蓄(xu)(xu)功(gong)能(neng)(neng)。針對(dui)以上問題,作出了(le)海綿體(ti)解決的兩大策(ce)略,即通過對(dui)“自然海綿體(ti)”與“人(ren)造(zao)海綿體(ti)”相結合的海綿景(jing)觀處理方式使水(shui)體(ti)有較(jiao)強的調蓄(xu)(xu)功(gong)能(neng)(neng)并且使水(shui)資源得到(dao)彈性化(hua)利用。