簡介
該湖濱公園采用(yong)傳統(tong)造園手法,堆山砌(qi)石,建有(you)各(ge)式(shi)亭(ting)閣(ge),輔(fu)有(you)寬敞的草坪,種(zhong)植(zhi)各(ge)種(zhong)花草樹木,使其(qi)四(si)周(zhou)綠(lv)樹成蔭,小溪流水,鳥(niao)語花香。
該園(yuan)(yuan)現(xian)已建(jian)成4個(ge)功能(neng)區,即(ji)游樂園(yuan)(yuan)區、老(lao)年活動區、動物園(yuan)(yuan)區、管(guan)理區。園(yuan)(yuan)內(nei)有“激流勇進”;占地5000平(ping)方米的獅虎山以及占地1120平(ping)方米憩(qi)園(yuan)(yuan)。
改造工程的規劃設計
水系統現狀(zhuang)及問題(ti)
盤(pan)錦(jin)市(shi)(shi)(shi)是(shi)(shi)中國濕地(di)(di)(di)之都,位(wei)(wei)于渤(bo)海(hai)(hai)北部(bu)(bu),遼寧(ning)省西南部(bu)(bu),遼河(he)三角(jiao)洲中心(xin)地(di)(di)(di)帶(dai)。但是(shi)(shi)按照以往傳(chuan)統(tong)建城(cheng)(cheng)(cheng)(cheng)理(li)念,盤(pan)錦(jin)市(shi)(shi)(shi)開(kai)發(fa)強(qiang)度不合(he)理(li)等(deng)諸多(duo)因素,導(dao)致了很多(duo)“城(cheng)(cheng)(cheng)(cheng)市(shi)(shi)(shi)病”的產生(sheng)。主要(yao)表現在(zai)水(shui)(shui)(shui)資源量嚴重(zhong)不足,人(ren)均占有水(shui)(shui)(shui)資源量(不含入(ru)境(jing)水(shui)(shui)(shui)量)262 立方米,不足我國人(ren)均占有量的1 /8,是(shi)(shi)全國50多(duo)個嚴重(zhong)缺水(shui)(shui)(shui)城(cheng)(cheng)(cheng)(cheng)市(shi)(shi)(shi)之一(yi);地(di)(di)(di)下水(shui)(shui)(shui)開(kai)采接近(jin)極限,近(jin)二十幾年(nian)來的大(da)(da)(da)量開(kai)采,地(di)(di)(di)下水(shui)(shui)(shui)位(wei)(wei)呈區(qu)域性(xing)持(chi)續下降。每年(nian)下降1 m ~ 5.5 m,已形成多(duo)個地(di)(di)(di)下水(shui)(shui)(shui)開(kai)采漏斗; 再(zai)生(sheng)水(shui)(shui)(shui)利(li)用(yong)(yong)不足,城(cheng)(cheng)(cheng)(cheng)市(shi)(shi)(shi)再(zai)生(sheng)水(shui)(shui)(shui)利(li)用(yong)(yong)率不足14% ;另(ling)外,水(shui)(shui)(shui)環境(jing)方面主要(yao)是(shi)(shi)城(cheng)(cheng)(cheng)(cheng)市(shi)(shi)(shi)水(shui)(shui)(shui)體(ti)污(wu)染問題,城(cheng)(cheng)(cheng)(cheng)區(qu)大(da)(da)(da)部(bu)(bu)分(fen)為截流(liu)(liu)(liu)式合(he)流(liu)(liu)(liu)制,雨季徑(jing)流(liu)(liu)(liu)污(wu)染對河(he)流(liu)(liu)(liu)濕地(di)(di)(di)水(shui)(shui)(shui)質(zhi)造成較(jiao)大(da)(da)(da)沖擊。由于按照傳(chuan)統(tong)建城(cheng)(cheng)(cheng)(cheng)理(li)念進行開(kai)發(fa),城(cheng)(cheng)(cheng)(cheng)市(shi)(shi)(shi)土地(di)(di)(di)的利(li)用(yong)(yong)及變化(hua)加劇了地(di)(di)(di)表溢流(liu)(liu)(liu)污(wu)染,導(dao)致城(cheng)(cheng)(cheng)(cheng)市(shi)(shi)(shi)水(shui)(shui)(shui)體(ti)水(shui)(shui)(shui)質(zhi)惡(e)化(hua)。現有排(pai)水(shui)(shui)(shui)采用(yong)(yong)“快收快排(pai)”,雨水(shui)(shui)(shui)通(tong)過(guo)地(di)(di)(di)面徑(jing)流(liu)(liu)(liu)就近(jin)排(pai)往城(cheng)(cheng)(cheng)(cheng)市(shi)(shi)(shi)市(shi)(shi)(shi)政管道,后由泵(beng)站抽排(pai)至河(he)流(liu)(liu)(liu),大(da)(da)(da)面積的不透水(shui)(shui)(shui)地(di)(di)(di)面導(dao)致雨水(shui)(shui)(shui)匯(hui)流(liu)(liu)(liu)時間短(duan),匯(hui)流(liu)(liu)(liu)量大(da)(da)(da),綠化(hua)基(ji)本沒有滯留調蓄能力(li),導(dao)致下游排(pai)水(shui)(shui)(shui)壓(ya)力(li)大(da)(da)(da)。一(yi)方面,盤(pan)錦(jin)市(shi)(shi)(shi)整體(ti)地(di)(di)(di)勢較(jiao)低(di),常年(nian)受內澇和外洪(hong)的威脅,迫切需(xu)要(yao)通(tong)過(guo)海(hai)(hai)綿城(cheng)(cheng)(cheng)(cheng)市(shi)(shi)(shi)建設(she)提(ti)高防洪(hong)排(pai)澇能力(li)。另(ling)一(yi)方面,盤(pan)錦(jin)市(shi)(shi)(shi)的部(bu)(bu)分(fen)河(he)流(liu)(liu)(liu)、濕地(di)(di)(di)、湖泊等(deng)水(shui)(shui)(shui)體(ti)均不同程度的遭受污(wu)染,迫切需(xu)要(yao)通(tong)過(guo)海(hai)(hai)綿城(cheng)(cheng)(cheng)(cheng)市(shi)(shi)(shi)建設(she)改善城(cheng)(cheng)(cheng)(cheng)市(shi)(shi)(shi)水(shui)(shui)(shui)環境(jing);提(ti)升城(cheng)(cheng)(cheng)(cheng)市(shi)(shi)(shi)形象,促進生(sheng)態(tai)文明建設(she)。
兩大海綿體系統
為了解決(jue)如何(he)通過海(hai)綿(mian)(mian)城(cheng)市的(de)(de)技術措(cuo)施及合(he)理布(bu)(bu)局(ju),實現(xian)(xian)道路和綠地的(de)(de)滲水、蓄(xu)(xu)(xu)水、凈化功(gong)(gong)能(neng);對(dui)園(yuan)區的(de)(de)水系進行合(he)理的(de)(de)布(bu)(bu)局(ju)與處理,最(zui)終實現(xian)(xian)蓄(xu)(xu)(xu)水功(gong)(gong)能(neng); 將現(xian)(xian)狀的(de)(de)魚塘(tang)打(da)造為濕地,實現(xian)(xian)對(dui)水體(ti)(ti)的(de)(de)滯(zhi)留、凈化; 通過技術手段實現(xian)(xian)對(dui)湖泊的(de)(de)雨洪調蓄(xu)(xu)(xu)功(gong)(gong)能(neng)。針對(dui)以上(shang)問(wen)題,作出(chu)了海(hai)綿(mian)(mian)體(ti)(ti)解決(jue)的(de)(de)兩大策(ce)略,即(ji)通過對(dui)“自(zi)然海(hai)綿(mian)(mian)體(ti)(ti)”與“人造海(hai)綿(mian)(mian)體(ti)(ti)”相結合(he)的(de)(de)海(hai)綿(mian)(mian)景觀處理方(fang)式(shi)使(shi)水體(ti)(ti)有較強的(de)(de)調蓄(xu)(xu)(xu)功(gong)(gong)能(neng)并且使(shi)水資源得到(dao)彈性(xing)化利用(yong)。