導語：河道修復加固工程(cheng)防洪的影響(xiang)評價一文(wen)來源于網友上傳，不(bu)代表本站觀點，若(ruo)需要原創文(wen)章可咨詢客服老(lao)師，歡(huan)迎參考。

河道修復是水利工程中常見的工程措施，防洪影響評價也是進一步分析工程措施建設效果的有效方式。防洪評價主要采用水文分析計算推求設計洪水，根據防洪評價的工作內容和相關計算的數據結果，對河道修復工程建設的防洪安全影響進行綜合評價。萬家寨水利樞紐位于黃河北干流上段托克托至龍口峽谷河段內，是黃河中游規劃開發的8個梯級中的第一個工程，也是山西省引黃入晉工程的龍頭工程，其左岸為山西省偏關縣，右岸為內蒙古自治區準格爾旗。萬家寨水利樞紐中孔首次高水位單獨運用，完成了970m以上水位區間的階段性試驗工作，試驗過程中由于受下游河道淤積以及泄流流態影響，造成左岸下游防護局部損毀。根據此次大壩中孔泄流試驗觀測情況，中孔4孔全開時泄流量達到2920m3/s時，受下游河道淤積影響，下泄水流偏向左岸，受大青溝溝口地形頂托，大青溝溝口處水流折沖嚴重，大青溝溝口處水流已翻越防護擋墻904.5m高程，造成904.5m高程及以上護坡鉛絲石籠防護部分損壞，同時大青溝溝口混凝土防護底板基礎部分淘空，溝口下游側擋墻基礎淘刷嚴重，防護擋墻及護坡部分損毀，給下游護坡的安全運行及下游河道的行洪安全帶來極大隱患，需進行修復加固，同時需對萬家寨下游河道左岸修復加固工程項目進行防洪影響評價工作。

項目概況及防護措施

項目區概況

項目區下游(you)左(zuo)(zuo)岸尾水(shui)(shui)河道左(zuo)(zuo)岸防(fang)(fang)(fang)護(hu)從防(fang)(fang)(fang)沖(chong)(chong)(chong)板末(mo)端(duan)壩(ba)下0+148~0+351段(duan)為重力式擋土墻，根(gen)據業主提(ti)供的(de)運行過(guo)(guo)程中相關資料及(ji)現場勘查(cha)情況，此段(duan)防(fang)(fang)(fang)護(hu)在中孔(kong)泄(xie)(xie)流(liu)試驗(yan)(yan)中未(wei)發(fa)生損毀(hui)。壩(ba)下0+351~大青溝(gou)(gou)口(kou)上(shang)(shang)游(you)側(ce)(ce)0+567.56m段(duan)防(fang)(fang)(fang)護(hu)在中孔(kong)泄(xie)(xie)流(liu)試驗(yan)(yan)期間(jian)，下泄(xie)(xie)水(shui)(shui)流(liu)越過(guo)(guo)擋墻頂部(bu)，靠近大青溝(gou)(gou)溝(gou)(gou)口(kou)部(bu)位904.5m平臺及(ji)斜(xie)坡段(duan)鉛(qian)絲石籠防(fang)(fang)(fang)護(hu)局(ju)部(bu)發(fa)生損毀(hui)，部(bu)分(fen)鉛(qian)絲石籠被(bei)沖(chong)(chong)(chong)毀(hui)，護(hu)坡局(ju)部(bu)塌陷。大青溝(gou)(gou)溝(gou)(gou)口(kou)混凝(ning)(ning)(ning)土防(fang)(fang)(fang)護(hu)在中孔(kong)泄(xie)(xie)流(liu)試驗(yan)(yan)期間(jian)底部(bu)淘刷(shua)嚴重，混凝(ning)(ning)(ning)土防(fang)(fang)(fang)護(hu)底部(bu)脫空嚴重，混凝(ning)(ning)(ning)土防(fang)(fang)(fang)護(hu)面(mian)板開(kai)裂。同時混凝(ning)(ning)(ning)土板表(biao)面(mian)因(yin)長期沖(chong)(chong)(chong)刷(shua)磨蝕(shi)，表(biao)層鋼筋已出露并銹蝕(shi)嚴重。大青溝(gou)(gou)口(kou)下游(you)側(ce)(ce)至凈水(shui)(shui)廠上(shang)(shang)游(you)側(ce)(ce)防(fang)(fang)(fang)護(hu)在中孔(kong)泄(xie)(xie)流(liu)試驗(yan)(yan)期間(jian)，受河床淤積及(ji)折沖(chong)(chong)(chong)水(shui)(shui)流(liu)的(de)沖(chong)(chong)(chong)擊影響，原設計防(fang)(fang)(fang)護(hu)擋墻及(ji)護(hu)坡已部(bu)分(fen)損毀(hui)。

防護措施

對現狀(zhuang)(zhuang)904.5m高(gao)程(cheng)(cheng)(cheng)鉛絲石(shi)(shi)(shi)籠防(fang)(fang)(fang)護(hu)(hu)頂(ding)(ding)部找平(ping)后(hou)鋪設(she)(she)(she)(she)土(tu)(tu)工布并(bing)(bing)增(zeng)(zeng)加(jia)30cm厚(hou)度(du)(du)(du)C30鋼(gang)筋(jin)(jin)混(hun)(hun)(hun)(hun)凝(ning)土(tu)(tu)防(fang)(fang)(fang)護(hu)(hu)，混(hun)(hun)(hun)(hun)凝(ning)土(tu)(tu)分(fen)(fen)縫(feng)(feng)(feng)尺寸2.5×2.5m（長×寬(kuan)(kuan)(kuan)），縫(feng)(feng)(feng)間(jian)鋼(gang)筋(jin)(jin)不(bu)斷(duan)開(kai)，縫(feng)(feng)(feng)內(nei)(nei)回填閉孔泡(pao)沫板(ban)，平(ping)段與斜(xie)坡(po)(po)間(jian)設(she)(she)(she)(she)置(zhi)分(fen)(fen)縫(feng)(feng)(feng)，904.5m高(gao)程(cheng)(cheng)(cheng)至908.0m高(gao)程(cheng)(cheng)(cheng)間(jian)斜(xie)坡(po)(po)同樣(yang)采用(yong)30cm厚(hou)度(du)(du)(du)C30鋼(gang)筋(jin)(jin)混(hun)(hun)(hun)(hun)凝(ning)土(tu)(tu)進(jin)行(xing)(xing)防(fang)(fang)(fang)護(hu)(hu)，混(hun)(hun)(hun)(hun)凝(ning)土(tu)(tu)分(fen)(fen)縫(feng)(feng)(feng)尺寸2.5×3.1m（長×寬(kuan)(kuan)(kuan)）。現狀(zhuang)(zhuang)大青溝溝口由于水(shui)流沖(chong)(chong)刷，造成局(ju)部淘空(kong)，影響防(fang)(fang)(fang)護(hu)(hu)穩定(ding)(ding)。本次防(fang)(fang)(fang)護(hu)(hu)設(she)(she)(she)(she)計對原混(hun)(hun)(hun)(hun)凝(ning)土(tu)(tu)板(ban)表層(ceng)鑿毛并(bing)(bing)增(zeng)(zeng)加(jia)插(cha)筋(jin)(jin)后(hou)增(zeng)(zeng)設(she)(she)(she)(she)30cm厚(hou)度(du)(du)(du)鋼(gang)筋(jin)(jin)混(hun)(hun)(hun)(hun)凝(ning)土(tu)(tu)防(fang)(fang)(fang)護(hu)(hu)，并(bing)(bing)對底(di)(di)板(ban)原基(ji)礎(chu)進(jin)行(xing)(xing)鉆孔回填灌漿處理。對防(fang)(fang)(fang)護(hu)(hu)底(di)(di)板(ban)前端(duan)新增(zeng)(zeng)混(hun)(hun)(hun)(hun)凝(ning)土(tu)(tu)擋(dang)(dang)墻(qiang)(qiang)(qiang)，墻(qiang)(qiang)(qiang)后(hou)回填砂(sha)礫石(shi)(shi)(shi)表層(ceng)設(she)(she)(she)(she)置(zhi)混(hun)(hun)(hun)(hun)凝(ning)土(tu)(tu)防(fang)(fang)(fang)護(hu)(hu)板(ban)與原防(fang)(fang)(fang)護(hu)(hu)銜接(jie)。同時(shi)在(zai)(zai)新建(jian)擋(dang)(dang)墻(qiang)(qiang)(qiang)前端(duan)采用(yong)拋石(shi)(shi)(shi)進(jin)行(xing)(xing)防(fang)(fang)(fang)沖(chong)(chong)處理，拋填塊石(shi)(shi)(shi)粒徑不(bu)小于80cm。此段防(fang)(fang)(fang)護(hu)(hu)推(tui)薦采用(yong)混(hun)(hun)(hun)(hun)凝(ning)土(tu)(tu)墻(qiang)(qiang)(qiang)式(shi)護(hu)(hu)岸+坡(po)(po)式(shi)護(hu)(hu)岸的(de)組合防(fang)(fang)(fang)護(hu)(hu)型式(shi)，同時(shi)為增(zeng)(zeng)強護(hu)(hu)岸基(ji)礎(chu)穩定(ding)(ding)，混(hun)(hun)(hun)(hun)凝(ning)土(tu)(tu)擋(dang)(dang)墻(qiang)(qiang)(qiang)基(ji)礎(chu)需坐落在(zai)(zai)基(ji)巖(yan)上，并(bing)(bing)在(zai)(zai)擋(dang)(dang)墻(qiang)(qiang)(qiang)底(di)(di)部增(zeng)(zeng)設(she)(she)(she)(she)錨筋(jin)(jin)樁增(zeng)(zeng)強擋(dang)(dang)墻(qiang)(qiang)(qiang)穩定(ding)(ding)。擋(dang)(dang)墻(qiang)(qiang)(qiang)采用(yong)重力式(shi)擋(dang)(dang)墻(qiang)(qiang)(qiang)，墻(qiang)(qiang)(qiang)頂(ding)(ding)寬(kuan)(kuan)(kuan)度(du)(du)(du)0.6m，底(di)(di)寬(kuan)(kuan)(kuan)6.0m，擋(dang)(dang)墻(qiang)(qiang)(qiang)高(gao)度(du)(du)(du)9m（最終以實(shi)際巖(yan)石(shi)(shi)(shi)基(ji)礎(chu)面(mian)高(gao)度(du)(du)(du)為準），內(nei)(nei)側坡(po)(po)度(du)(du)(du)1：0.5，基(ji)礎(chu)部位設(she)(she)(she)(she)置(zhi)高(gao)度(du)(du)(du)1m基(ji)座。擋(dang)(dang)墻(qiang)(qiang)(qiang)每間(jian)隔10m設(she)(she)(she)(she)一分(fen)(fen)縫(feng)(feng)(feng)，縫(feng)(feng)(feng)寬(kuan)(kuan)(kuan)2cm，縫(feng)(feng)(feng)內(nei)(nei)填充高(gao)壓閉孔泡(pao)沫板(ban)并(bing)(bing)設(she)(she)(she)(she)置(zhi)橡膠止水(shui)。底(di)(di)部錨筋(jin)(jin)樁長度(du)(du)(du)L為6m，入巖(yan)深度(du)(du)(du)3m，錨筋(jin)(jin)采用(yong)4根(gen)Φ28鋼(gang)筋(jin)(jin)，間(jian)距1.5m，排距2m。高(gao)程(cheng)(cheng)(cheng)906.0m以上采用(yong)50cm混(hun)(hun)(hun)(hun)凝(ning)土(tu)(tu)護(hu)(hu)坡(po)(po)方式(shi)進(jin)行(xing)(xing)防(fang)(fang)(fang)護(hu)(hu)，護(hu)(hu)坡(po)(po)設(she)(she)(she)(she)置(zhi)排水(shui)孔，護(hu)(hu)坡(po)(po)坡(po)(po)度(du)(du)(du)為1：1.5，護(hu)(hu)坡(po)(po)頂(ding)(ding)高(gao)程(cheng)(cheng)(cheng)908.0m，護(hu)(hu)坡(po)(po)頂(ding)(ding)部設(she)(she)(she)(she)置(zhi)寬(kuan)(kuan)(kuan)度(du)(du)(du)1m壓頂(ding)(ding)板(ban)。對已損(sun)毀(hui)院落圍(wei)墻(qiang)(qiang)(qiang)進(jin)行(xing)(xing)重新砌筑。評(ping)(ping)價(jia)方法收集整理評(ping)(ping)價(jia)區域(yu)(yu)水(shui)利規(gui)(gui)劃(hua)，地(di)物、地(di)貌、水(shui)文、野外(wai)河道勘測等資料，并(bing)(bing)利用(yong)水(shui)文資料進(jin)行(xing)(xing)分(fen)(fen)析(xi)，在(zai)(zai)全(quan)面(mian)分(fen)(fen)析(xi)的(de)基(ji)礎(chu)上，從項(xiang)目(mu)建(jian)設(she)(she)(she)(she)對流域(yu)(yu)規(gui)(gui)劃(hua)、河道防(fang)(fang)(fang)洪、河勢演變等影響以及(ji)河道行(xing)(xing)洪沖(chong)(chong)刷對河岸安全(quan)影響的(de)角度(du)(du)(du)進(jin)行(xing)(xing)分(fen)(fen)析(xi)論證，確(que)保成果(guo)結論的(de)科學性(xing)和(he)嚴謹(jin)性(xing)。依(yi)據(ju)(ju)規(gui)(gui)范規(gui)(gui)定(ding)(ding)，參考有關(guan)的(de)技術文獻，并(bing)(bing)根(gen)據(ju)(ju)評(ping)(ping)價(jia)區的(de)流域(yu)(yu)特性(xing)、河道特征有針(zhen)對性(xing)地(di)選取計算參數、公式(shi)、采用(yong)合理的(de)計算成果(guo)。

防洪評價計算

水文分析計算

萬家寨水(shui)(shui)(shui)(shui)利樞(shu)紐位于東徑111°26′，北(bei)緯(wei)39°34′，黃(huang)河(he)中游的上段(duan)。左岸為山西(xi)(xi)省(sheng)偏(pian)關(guan)縣，右(you)岸為內蒙古(gu)自(zi)治區(qu)(qu)準格爾旗。壩(ba)(ba)址以上流(liu)(liu)域(yu)(yu)面(mian)積(ji)394813km2。自(zi)拐上進入(ru)峽谷河(he)段(duan)，比降較(jiao)大，萬家寨河(he)段(duan)比降為1.24‰，河(he)寬(kuan)(kuan)300m到500m，呈(cheng)U形河(he)槽(cao)。萬家寨水(shui)(shui)(shui)(shui)利樞(shu)紐地處(chu)黃(huang)土高(gao)原區(qu)(qu)，該區(qu)(qu)高(gao)程一般在(zai)(zai)1000~2000m之(zhi)間，氣(qi)候干(gan)旱、降水(shui)(shui)(shui)(shui)量(liang)較(jiao)少(shao)(shao)、植被較(jiao)差，水(shui)(shui)(shui)(shui)土流(liu)(liu)失嚴(yan)重。壩(ba)(ba)址上游14km有支流(liu)(liu)楊家川匯(hui)入(ru)黃(huang)河(he)，流(liu)(liu)域(yu)(yu)面(mian)積(ji)1002km2；57km處(chu)有紅(hong)河(he)匯(hui)入(ru)，流(liu)(liu)域(yu)(yu)面(mian)積(ji)5533km2。壩(ba)(ba)址下游0.5km，有大青溝匯(hui)入(ru)，該溝道(dao)長(chang)9.7km，流(liu)(liu)域(yu)(yu)面(mian)積(ji)21.4km2，平(ping)均(jun)比降5%。溝道(dao)寬(kuan)(kuan)度(du)100m左右(you)，兩(liang)岸山崖陡峭(qiao)，河(he)床為大塊石(shi)及砂卵石(shi)覆蓋，間有基巖(yan)出(chu)露。萬家寨水(shui)(shui)(shui)(shui)利樞(shu)紐位于屬溫帶大陸性季風(feng)(feng)氣(qi)候的西(xi)(xi)北(bei)黃(huang)土高(gao)原區(qu)(qu)。冬季受蒙古(gu)冷(leng)高(gao)壓控制，多西(xi)(xi)北(bei)風(feng)(feng)，氣(qi)候寒冷(leng)干(gan)燥，雨(yu)雪稀少(shao)(shao)且多風(feng)(feng)沙。夏季因(yin)本區(qu)(qu)處(chu)于內陸深(shen)處(chu)，天氣(qi)干(gan)燥炎熱，降水(shui)(shui)(shui)(shui)多以短歷(li)時(shi)暴(bao)雨(yu)形式出(chu)現，大面(mian)積(ji)長(chang)歷(li)時(shi)的降水(shui)(shui)(shui)(shui)較(jiao)少(shao)(shao)。年(nian)降水(shui)(shui)(shui)(shui)量(liang)在(zai)(zai)300~500mm之(zhi)間，水(shui)(shui)(shui)(shui)面(mian)蒸(zheng)發(fa)(fa)量(liang)全年(nian)為2000mm，在(zai)(zai)干(gan)旱少(shao)(shao)雨(yu)的4~6月(yue)，蒸(zheng)發(fa)(fa)量(liang)約占(zhan)全年(nian)一半(ban)左右(you)。年(nian)平(ping)均(jun)氣(qi)溫在(zai)(zai)7℃左右(you)，溫差較(jiao)大。冬季時(shi)間長(chang)，春秋時(shi)間短，四季分明。

洪水設計標準

根(gen)據相關(guan)研(yan)究結果，工(gong)程所在河(he)段河(he)道平(ping)緩，灘(tan)寬200m左右，河(he)道比降約(yue)為(wei)1.7‰，河(he)道糙(cao)率主槽取0.02~0.025，灘(tan)地取0.035~0.045。采用(yong)(yong)曼寧(ning)公式(shi)(shi)可以推(tui)算(suan)出現(xian)(xian)狀(zhuang)水(shui)(shui)位—流(liu)(liu)(liu)(liu)(liu)量(liang)關(guan)系，萬(wan)家寨樞(shu)紐設(she)計(ji)(ji)(ji)(ji)(ji)(ji)防洪(hong)(hong)(hong)標(biao)準為(wei)1000年(nian)(nian)一(yi)(yi)遇(yu)(yu)，萬(wan)家寨大(da)(da)壩(ba)至(zhi)黃(huang)(huang)河(he)大(da)(da)橋(qiao)間(jian)河(he)段布置有大(da)(da)壩(ba)泄洪(hong)(hong)(hong)效能設(she)施、上(shang)壩(ba)道路及連接(jie)兩岸上(shang)壩(ba)道路的(de)黃(huang)(huang)河(he)大(da)(da)橋(qiao)，以上(shang)均屬于萬(wan)家寨樞(shu)紐工(gong)程的(de)一(yi)(yi)部分，因此(ci)，攔河(he)壩(ba)下(xia)游該段護坡工(gong)程采用(yong)(yong)正(zheng)(zheng)常(chang)運用(yong)(yong)（設(she)計(ji)(ji)(ji)(ji)(ji)(ji)）洪(hong)(hong)(hong)水(shui)(shui)標(biao)準洪(hong)(hong)(hong)水(shui)(shui)重(zhong)現(xian)(xian)期(qi)為(wei)1000年(nian)(nian)（千年(nian)(nian)一(yi)(yi)遇(yu)(yu)），相應(ying)入庫(ku)洪(hong)(hong)(hong)峰(feng)(feng)流(liu)(liu)(liu)(liu)(liu)量(liang)為(wei)16500m3/s，下(xia)泄流(liu)(liu)(liu)(liu)(liu)量(liang)為(wei)7899m3/s。洪(hong)(hong)(hong)水(shui)(shui)計(ji)(ji)(ji)(ji)(ji)(ji)算(suan)本次設(she)計(ji)(ji)(ji)(ji)(ji)(ji)洪(hong)(hong)(hong)水(shui)(shui)計(ji)(ji)(ji)(ji)(ji)(ji)算(suan)，因萬(wan)家寨大(da)(da)壩(ba)與(yu)大(da)(da)青溝(gou)口區(qu)間(jian)距(ju)離(li)較(jiao)短，攔河(he)壩(ba)正(zheng)(zheng)常(chang)運用(yong)(yong)（設(she)計(ji)(ji)(ji)(ji)(ji)(ji)）洪(hong)(hong)(hong)水(shui)(shui)標(biao)準洪(hong)(hong)(hong)水(shui)(shui)重(zhong)現(xian)(xian)期(qi)為(wei)1000年(nian)(nian)（千年(nian)(nian)一(yi)(yi)遇(yu)(yu)），相應(ying)入庫(ku)洪(hong)(hong)(hong)峰(feng)(feng)流(liu)(liu)(liu)(liu)(liu)量(liang)為(wei)16500m3/s，下(xia)泄流(liu)(liu)(liu)(liu)(liu)量(liang)為(wei)7899m3/s；大(da)(da)青溝(gou)流(liu)(liu)(liu)(liu)(liu)域(yu)內無水(shui)(shui)文站(zhan)，也無實測水(shui)(shui)文資(zi)料，本次采用(yong)(yong)《山(shan)西省(sheng)水(shui)(shui)文計(ji)(ji)(ji)(ji)(ji)(ji)算(suan)手(shou)冊(ce)(ce)》的(de)計(ji)(ji)(ji)(ji)(ji)(ji)算(suan)方法(fa)進行計(ji)(ji)(ji)(ji)(ji)(ji)算(suan)。工(gong)程控制流(liu)(liu)(liu)(liu)(liu)域(yu)特征參數(shu)見表1。流(liu)(liu)(liu)(liu)(liu)域(yu)內無水(shui)(shui)文測站(zhan)，屬無資(zi)料地區(qu)，設(she)計(ji)(ji)(ji)(ji)(ji)(ji)洪(hong)(hong)(hong)水(shui)(shui)計(ji)(ji)(ji)(ji)(ji)(ji)算(suan)采用(yong)(yong)《山(shan)西省(sheng)水(shui)(shui)文計(ji)(ji)(ji)(ji)(ji)(ji)算(suan)手(shou)冊(ce)(ce)》中(zhong)提(ti)供的(de)流(liu)(liu)(liu)(liu)(liu)域(yu)模型法(fa)和推(tui)理公式(shi)(shi)法(fa)進行計(ji)(ji)(ji)(ji)(ji)(ji)算(suan)。依(yi)據《手(shou)冊(ce)(ce)》附(fu)圖一(yi)(yi)，本工(gong)程所在范圍位于北區(qu)，流(liu)(liu)(liu)(liu)(liu)域(yu)暴(bao)雨計(ji)(ji)(ji)(ji)(ji)(ji)算(suan)選定(ding)一(yi)(yi)個定(ding)點，其各標(biao)準歷(li)時暴(bao)雨均值、Cv見表2，流(liu)(liu)(liu)(liu)(liu)域(yu)的(de)產(chan)、匯流(liu)(liu)(liu)(liu)(liu)地類參數(shu)見表3~5。根(gen)據以上(shang)數(shu)據與(yu)參數(shu)以及《手(shou)冊(ce)(ce)》提(ti)供的(de)計(ji)(ji)(ji)(ji)(ji)(ji)算(suan)方法(fa)計(ji)(ji)(ji)(ji)(ji)(ji)算(suan)得到洪(hong)(hong)(hong)水(shui)(shui)洪(hong)(hong)(hong)峰(feng)(feng)流(liu)(liu)(liu)(liu)(liu)量(liang)成果，見表6。

防洪綜合評價

防洪標準符(fu)合性分析(xi)

護(hu)(hu)坡工程設(she)(she)(she)(she)(she)(she)計防(fang)洪(hong)(hong)(hong)(hong)標(biao)準(zhun)(zhun)達到30年一(yi)遇，符合《防(fang)洪(hong)(hong)(hong)(hong)標(biao)準(zhun)(zhun)》（GB50201-2014）的(de)(de)(de)要(yao)求，根據(ju)(ju)《黃河(he)(he)(he)(he)河(he)(he)(he)(he)道(dao)管理(li)(li)范(fan)(fan)圍(wei)內(nei)建(jian)(jian)(jian)設(she)(she)(she)(she)(she)(she)項(xiang)目技術審查標(biao)準(zhun)(zhun)》的(de)(de)(de)規(gui)定(ding)(ding)，設(she)(she)(she)(she)(she)(she)計洪(hong)(hong)(hong)(hong)水(shui)除滿足(zu)建(jian)(jian)(jian)設(she)(she)(she)(she)(she)(she)項(xiang)目自身防(fang)洪(hong)(hong)(hong)(hong)標(biao)準(zhun)(zhun)外(wai)，還應與建(jian)(jian)(jian)設(she)(she)(she)(she)(she)(she)項(xiang)目所在(zai)河(he)(he)(he)(he)段的(de)(de)(de)防(fang)洪(hong)(hong)(hong)(hong)及水(shui)電工程標(biao)準(zhun)(zhun)協調。經(jing)分(fen)析(xi)，建(jian)(jian)(jian)設(she)(she)(she)(she)(she)(she)項(xiang)目無法(fa)(fa)抵御超標(biao)準(zhun)(zhun)洪(hong)(hong)(hong)(hong)水(shui)。根據(ju)(ju)《中(zhong)華人(ren)民共和(he)國防(fang)洪(hong)(hong)(hong)(hong)法(fa)(fa)》《中(zhong)華人(ren)民共和(he)國河(he)(he)(he)(he)道(dao)管理(li)(li)條例》和(he)《河(he)(he)(he)(he)道(dao)管理(li)(li)范(fan)(fan)圍(wei)內(nei)建(jian)(jian)(jian)設(she)(she)(she)(she)(she)(she)項(xiang)目管理(li)(li)的(de)(de)(de)有(you)關規(gui)定(ding)(ding)》，對(dui)壅水(shui)、阻水(shui)嚴重的(de)(de)(de)橋梁、引道(dao)、碼頭(tou)和(he)其(qi)他跨河(he)(he)(he)(he)工程設(she)(she)(she)(she)(she)(she)施，根據(ju)(ju)國家規(gui)定(ding)(ding)的(de)(de)(de)防(fang)洪(hong)(hong)(hong)(hong)標(biao)準(zhun)(zhun)，由河(he)(he)(he)(he)道(dao)主管機關提(ti)出(chu)意見并報經(jing)人(ren)民政府批準(zhun)(zhun)，責成(cheng)原建(jian)(jian)(jian)設(she)(she)(she)(she)(she)(she)單位(wei)在(zai)規(gui)定(ding)(ding)的(de)(de)(de)期限內(nei)改建(jian)(jian)(jian)或者拆除。汛(xun)期影(ying)(ying)響(xiang)(xiang)防(fang)洪(hong)(hong)(hong)(hong)安(an)全的(de)(de)(de)，必須(xu)服(fu)從防(fang)汛(xun)指(zhi)揮(hui)部的(de)(de)(de)緊急處理(li)(li)決(jue)定(ding)(ding)。對(dui)行(xing)洪(hong)(hong)(hong)(hong)安(an)全的(de)(de)(de)影(ying)(ying)響(xiang)(xiang)分(fen)析(xi)建(jian)(jian)(jian)設(she)(she)(she)(she)(she)(she)項(xiang)目屬(shu)于(yu)護(hu)(hu)岸(an)(an)加固，對(dui)河(he)(he)(he)(he)道(dao)行(xing)洪(hong)(hong)(hong)(hong)的(de)(de)(de)影(ying)(ying)響(xiang)(xiang)體現在(zai)整個涉及河(he)(he)(he)(he)段的(de)(de)(de)區域，該項(xiang)目建(jian)(jian)(jian)設(she)(she)(she)(she)(she)(she)范(fan)(fan)圍(wei)均在(zai)1000年一(yi)遇洪(hong)(hong)(hong)(hong)水(shui)線以外(wai)區域，基本(ben)不(bu)影(ying)(ying)響(xiang)(xiang)河(he)(he)(he)(he)道(dao)正常(chang)行(xing)洪(hong)(hong)(hong)(hong)。當遭遇特大洪(hong)(hong)(hong)(hong)水(shui)時(shi)，擋墻(qiang)一(yi)定(ding)(ding)程度阻礙(ai)洪(hong)(hong)(hong)(hong)水(shui)通(tong)過(guo)，同(tong)時(shi)上(shang)游漂浮(fu)物可(ke)能懸浮(fu)、附著甚至形成(cheng)垃圾擁(yong)擠，造(zao)成(cheng)灘(tan)區行(xing)洪(hong)(hong)(hong)(hong)阻水(shui)和(he)壅水(shui)。工程建(jian)(jian)(jian)設(she)(she)(she)(she)(she)(she)應避免洪(hong)(hong)(hong)(hong)水(shui)期，同(tong)時(shi)減少運行(xing)管理(li)(li)對(dui)環境及河(he)(he)(he)(he)道(dao)行(xing)洪(hong)(hong)(hong)(hong)、水(shui)質等的(de)(de)(de)影(ying)(ying)響(xiang)(xiang)。本(ben)次評價范(fan)(fan)圍(wei)內(nei)左岸(an)(an)護(hu)(hu)坡擋墻(qiang)不(bu)會對(dui)河(he)(he)(he)(he)道(dao)行(xing)洪(hong)(hong)(hong)(hong)產生大的(de)(de)(de)影(ying)(ying)響(xiang)(xiang)。

對(dui)河勢穩定的影響

本(ben)建設(she)項目位于萬家寨下(xia)游河(he)道左岸，分別對壩下(xia)0+351~0+567.56m段(duan)(duan)904.5m-908.0m高程(cheng)平臺的現有鉛絲石(shi)籠(long)防(fang)護(hu)基礎表(biao)層上(shang)采(cai)取混凝(ning)(ning)土(tu)(tu)板防(fang)護(hu)；大(da)(da)青溝(gou)溝(gou)口混凝(ning)(ning)土(tu)(tu)防(fang)護(hu)底板前端增(zeng)設(she)混凝(ning)(ning)土(tu)(tu)擋(dang)墻(qiang)(qiang)(qiang)（擋(dang)墻(qiang)(qiang)(qiang)基礎坐落(luo)在(zai)(zai)基巖上(shang)），擋(dang)墻(qiang)(qiang)(qiang)后進(jin)行砂礫石(shi)回填，并對擋(dang)墻(qiang)(qiang)(qiang)底部前端增(zeng)設(she)拋石(shi)防(fang)護(hu)，對溝(gou)口表(biao)層混凝(ning)(ning)土(tu)(tu)防(fang)護(hu)板進(jin)行加固(gu)處理；大(da)(da)青溝(gou)溝(gou)口下(xia)游至(zhi)(zhi)凈(jing)水(shui)廠上(shang)游側(ce)損毀(hui)段(duan)(duan)采(cai)用混凝(ning)(ning)土(tu)(tu)擋(dang)墻(qiang)(qiang)(qiang)+貼坡混凝(ning)(ning)土(tu)(tu)護(hu)坡型式(shi)進(jin)行修復，混凝(ning)(ning)土(tu)(tu)擋(dang)墻(qiang)(qiang)(qiang)基礎坐落(luo)在(zai)(zai)巖基上(shang)；現狀凈(jing)水(shui)廠至(zhi)(zhi)黃河(he)大(da)(da)橋(qiao)段(duan)(duan)河(he)道混凝(ning)(ning)土(tu)(tu)貼坡防(fang)護(hu)頂高程(cheng)902.0m~905.0m采(cai)用混凝(ning)(ning)土(tu)(tu)板防(fang)護(hu)進(jin)行加固(gu)處理。上(shang)述(shu)修復加固(gu)工程(cheng)均(jun)是在(zai)(zai)原(yuan)址上(shang)進(jin)行，從而一(yi)般條件下(xia)不影響本(ben)河(he)段(duan)(duan)河(he)勢。

對現有防洪工程、河道整治工程及其它水利工程與設施影響分析

為(wei)(wei)(wei)(wei)保證下(xia)(xia)(xia)(xia)游(you)(you)左(zuo)(zuo)岸(an)進場道(dao)(dao)(dao)路、水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)廠(chang)(chang)及黃(huang)(huang)(huang)(huang)河(he)(he)大(da)(da)(da)橋(qiao)(qiao)安(an)(an)全(quan)，根(gen)(gen)據現(xian)狀下(xia)(xia)(xia)(xia)游(you)(you)河(he)(he)道(dao)(dao)(dao)沖(chong)淤情況及中孔泄流試驗觀察(cha)情況，對(dui)(dui)(dui)(dui)下(xia)(xia)(xia)(xia)游(you)(you)河(he)(he)道(dao)(dao)(dao)清渣深(shen)(shen)(shen)度(du)需達到原河(he)(he)道(dao)(dao)(dao)河(he)(he)底設(she)計(ji)(ji)(ji)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)位(wei)(wei)高(gao)(gao)(gao)(gao)(gao)(gao)程(cheng)(cheng)(cheng)(cheng)。黃(huang)(huang)(huang)(huang)河(he)(he)大(da)(da)(da)橋(qiao)(qiao)橋(qiao)(qiao)墩基礎(chu)(chu)埋深(shen)(shen)(shen)10m，灌注樁樁深(shen)(shen)(shen)45m，橋(qiao)(qiao)梁橋(qiao)(qiao)墩基礎(chu)(chu)埋深(shen)(shen)(shen)滿(man)足(zu)(zu)安(an)(an)全(quan)埋深(shen)(shen)(shen)的(de)要(yao)求(qiu)，改造(zao)后對(dui)(dui)(dui)(dui)大(da)(da)(da)橋(qiao)(qiao)沖(chong)刷(shua)(shua)無影(ying)(ying)響(xiang)(xiang)。對(dui)(dui)(dui)(dui)防(fang)汛(xun)(xun)搶(qiang)險(xian)(xian)的(de)影(ying)(ying)響(xiang)(xiang)分析坡(po)(po)面修復工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)頂(ding)(ding)高(gao)(gao)(gao)(gao)(gao)(gao)程(cheng)(cheng)(cheng)(cheng)為(wei)(wei)(wei)(wei)908m，該段(duan)(duan)(duan)河(he)(he)道(dao)(dao)(dao)壩(ba)下(xia)(xia)(xia)(xia)0+351~大(da)(da)(da)青(qing)溝(gou)口(kou)段(duan)(duan)(duan)設(she)計(ji)(ji)(ji)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)位(wei)(wei)904.24，安(an)(an)全(quan)超(chao)高(gao)(gao)(gao)(gao)(gao)(gao)為(wei)(wei)(wei)(wei)3.76m，滿(man)足(zu)(zu)防(fang)汛(xun)(xun)搶(qiang)險(xian)(xian)要(yao)求(qiu)；大(da)(da)(da)青(qing)溝(gou)溝(gou)口(kou)下(xia)(xia)(xia)(xia)游(you)(you)至(zhi)(zhi)凈(jing)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)廠(chang)(chang)設(she)計(ji)(ji)(ji)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)位(wei)(wei)904.27m，安(an)(an)全(quan)超(chao)高(gao)(gao)(gao)(gao)(gao)(gao)為(wei)(wei)(wei)(wei)高(gao)(gao)(gao)(gao)(gao)(gao)2.51m~2.73m，滿(man)足(zu)(zu)防(fang)汛(xun)(xun)搶(qiang)險(xian)(xian)要(yao)求(qiu)；凈(jing)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)廠(chang)(chang)至(zhi)(zhi)黃(huang)(huang)(huang)(huang)河(he)(he)大(da)(da)(da)橋(qiao)(qiao)段(duan)(duan)(duan)設(she)計(ji)(ji)(ji)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)位(wei)(wei)904.27m，此段(duan)(duan)(duan)僅有武警(jing)營地和黃(huang)(huang)(huang)(huang)河(he)(he)大(da)(da)(da)橋(qiao)(qiao)，安(an)(an)全(quan)超(chao)高(gao)(gao)(gao)(gao)(gao)(gao)為(wei)(wei)(wei)(wei)高(gao)(gao)(gao)(gao)(gao)(gao)2.23m~3.93m，水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)位(wei)(wei)對(dui)(dui)(dui)(dui)其(qi)(qi)無淹沒影(ying)(ying)響(xiang)(xiang)，同樣滿(man)足(zu)(zu)防(fang)汛(xun)(xun)搶(qiang)險(xian)(xian)要(yao)求(qiu)。對(dui)(dui)(dui)(dui)第三人合法水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)事權益的(de)影(ying)(ying)響(xiang)(xiang)分析萬家寨(zhai)電(dian)站(zhan)(zhan)下(xia)(xia)(xia)(xia)游(you)(you)河(he)(he)道(dao)(dao)(dao)左(zuo)(zuo)岸(an)大(da)(da)(da)青(qing)溝(gou)口(kou)段(duan)(duan)(duan)修復加固(gu)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)所在(zai)(zai)(zai)河(he)(he)段(duan)(duan)(duan)有凈(jing)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)廠(chang)(chang)取(qu)(qu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵站(zhan)(zhan)和凈(jing)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)廠(chang)(chang)餐(can)(can)廳(ting)各1座。凈(jing)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)廠(chang)(chang)取(qu)(qu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵站(zhan)(zhan)位(wei)(wei)于(yu)河(he)(he)道(dao)(dao)(dao)左(zuo)(zuo)岸(an)0+903岸(an)坡(po)(po)頂(ding)(ding)，為(wei)(wei)(wei)(wei)凈(jing)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)廠(chang)(chang)備用水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)源，高(gao)(gao)(gao)(gao)(gao)(gao)程(cheng)(cheng)(cheng)(cheng)為(wei)(wei)(wei)(wei)907.0m，根(gen)(gen)據壅(yong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)計(ji)(ji)(ji)算(suan)分析可知(zhi)(zhi)，該處(chu)設(she)計(ji)(ji)(ji)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)位(wei)(wei)為(wei)(wei)(wei)(wei)904.27m，不(bu)影(ying)(ying)響(xiang)(xiang)泵站(zhan)(zhan)取(qu)(qu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)。凈(jing)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)廠(chang)(chang)餐(can)(can)廳(ting)位(wei)(wei)于(yu)河(he)(he)道(dao)(dao)(dao)左(zuo)(zuo)岸(an)0+885處(chu)護(hu)坡(po)(po)上，底部(bu)(bu)為(wei)(wei)(wei)(wei)透(tou)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)立柱結(jie)構，餐(can)(can)廳(ting)樓板(ban)底部(bu)(bu)高(gao)(gao)(gao)(gao)(gao)(gao)程(cheng)(cheng)(cheng)(cheng)906.78m，根(gen)(gen)據壅(yong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)計(ji)(ji)(ji)算(suan)分析可知(zhi)(zhi)，該處(chu)設(she)計(ji)(ji)(ji)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)位(wei)(wei)為(wei)(wei)(wei)(wei)904.27m，透(tou)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)立柱基本不(bu)影(ying)(ying)響(xiang)(xiang)行(xing)洪(hong)(hong)(hong)(hong)(hong)，餐(can)(can)廳(ting)樓板(ban)底部(bu)(bu)高(gao)(gao)(gao)(gao)(gao)(gao)程(cheng)(cheng)(cheng)(cheng)高(gao)(gao)(gao)(gao)(gao)(gao)于(yu)設(she)計(ji)(ji)(ji)洪(hong)(hong)(hong)(hong)(hong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)位(wei)(wei)2.51m，洪(hong)(hong)(hong)(hong)(hong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)對(dui)(dui)(dui)(dui)餐(can)(can)廳(ting)不(bu)會(hui)造(zao)成(cheng)淹沒影(ying)(ying)響(xiang)(xiang)。該段(duan)(duan)(duan)護(hu)岸(an)采(cai)用0.3m厚混(hun)凝土(tu)護(hu)坡(po)(po)，其(qi)(qi)在(zai)(zai)(zai)現(xian)狀邊坡(po)(po)底部(bu)(bu)鋪設(she)土(tu)工(gong)(gong)(gong)布基礎(chu)(chu)上直接(jie)鋪設(she)，不(bu)會(hui)影(ying)(ying)響(xiang)(xiang)餐(can)(can)廳(ting)立柱及其(qi)(qi)基礎(chu)(chu)，對(dui)(dui)(dui)(dui)餐(can)(can)廳(ting)一(yi)層框架結(jie)構不(bu)會(hui)造(zao)成(cheng)影(ying)(ying)響(xiang)(xiang)。技術總(zong)結(jie)修復加固(gu)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)對(dui)(dui)(dui)(dui)萬家寨(zhai)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫下(xia)(xia)(xia)(xia)游(you)(you)1.25km范圍內改善保障行(xing)洪(hong)(hong)(hong)(hong)(hong)安(an)(an)全(quan)，提高(gao)(gao)(gao)(gao)(gao)(gao)了護(hu)岸(an)在(zai)(zai)(zai)極端工(gong)(gong)(gong)況下(xia)(xia)(xia)(xia)的(de)抗沖(chong)刷(shua)(shua)能力，不(bu)僅有利(li)于(yu)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)安(an)(an)全(quan)運(yun)行(xing)及河(he)(he)道(dao)(dao)(dao)防(fang)洪(hong)(hong)(hong)(hong)(hong)安(an)(an)全(quan)，更有利(li)于(yu)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)效益的(de)發揮(hui)，因此，修復工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)是十分必要(yao)的(de)。該工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)設(she)計(ji)(ji)(ji)防(fang)洪(hong)(hong)(hong)(hong)(hong)標準為(wei)(wei)(wei)(wei)30年(nian)一(yi)遇(yu)(yu)，大(da)(da)(da)壩(ba)至(zhi)(zhi)黃(huang)(huang)(huang)(huang)河(he)(he)大(da)(da)(da)橋(qiao)(qiao)間河(he)(he)段(duan)(duan)(duan)的(de)影(ying)(ying)響(xiang)(xiang)范圍按照1000年(nian)計(ji)(ji)(ji)算(suan)最(zui)大(da)(da)(da)壅(yong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)高(gao)(gao)(gao)(gao)(gao)(gao)度(du)在(zai)(zai)(zai)0.04m，由于(yu)左(zuo)(zuo)岸(an)護(hu)坡(po)(po)加高(gao)(gao)(gao)(gao)(gao)(gao)，其(qi)(qi)產生的(de)壅(yong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)高(gao)(gao)(gao)(gao)(gao)(gao)度(du)不(bu)影(ying)(ying)響(xiang)(xiang)正常行(xing)洪(hong)(hong)(hong)(hong)(hong)。在(zai)(zai)(zai)30年(nian)一(yi)遇(yu)(yu)洪(hong)(hong)(hong)(hong)(hong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)條件下(xia)(xia)(xia)(xia)，一(yi)般沖(chong)刷(shua)(shua)后水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)深(shen)(shen)(shen)1.25m，在(zai)(zai)(zai)1000年(nian)一(yi)遇(yu)(yu)洪(hong)(hong)(hong)(hong)(hong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)條件下(xia)(xia)(xia)(xia)，一(yi)般沖(chong)刷(shua)(shua)后水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)深(shen)(shen)(shen)1.89m；在(zai)(zai)(zai)30年(nian)一(yi)遇(yu)(yu)洪(hong)(hong)(hong)(hong)(hong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)條件下(xia)(xia)(xia)(xia)，局(ju)部(bu)(bu)最(zui)大(da)(da)(da)沖(chong)刷(shua)(shua)深(shen)(shen)(shen)度(du)為(wei)(wei)(wei)(wei)0.98m，在(zai)(zai)(zai)1000年(nian)一(yi)遇(yu)(yu)洪(hong)(hong)(hong)(hong)(hong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)條件下(xia)(xia)(xia)(xia)，局(ju)部(bu)(bu)最(zui)大(da)(da)(da)沖(chong)刷(shua)(shua)深(shen)(shen)(shen)度(du)為(wei)(wei)(wei)(wei)1.34m。坡(po)(po)面修復工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)頂(ding)(ding)高(gao)(gao)(gao)(gao)(gao)(gao)程(cheng)(cheng)(cheng)(cheng)為(wei)(wei)(wei)(wei)908m，該段(duan)(duan)(duan)河(he)(he)道(dao)(dao)(dao)下(xia)(xia)(xia)(xia)0+351~大(da)(da)(da)青(qing)溝(gou)口(kou)上游(you)(you)側0+567.56m段(duan)(duan)(duan)設(she)計(ji)(ji)(ji)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)位(wei)(wei)904.24，超(chao)高(gao)(gao)(gao)(gao)(gao)(gao)為(wei)(wei)(wei)(wei)3.76m，水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)位(wei)(wei)對(dui)(dui)(dui)(dui)路面無淹沒影(ying)(ying)響(xiang)(xiang)，滿(man)足(zu)(zu)防(fang)汛(xun)(xun)搶(qiang)險(xian)(xian)要(yao)求(qiu)；大(da)(da)(da)青(qing)溝(gou)溝(gou)口(kou)下(xia)(xia)(xia)(xia)游(you)(you)至(zhi)(zhi)凈(jing)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)廠(chang)(chang)上游(you)(you)側防(fang)護(hu)段(duan)(duan)(duan)設(she)計(ji)(ji)(ji)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)位(wei)(wei)904.27m，安(an)(an)全(quan)超(chao)高(gao)(gao)(gao)(gao)(gao)(gao)為(wei)(wei)(wei)(wei)2.51m~2.73mm，水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)位(wei)(wei)對(dui)(dui)(dui)(dui)路面無淹沒影(ying)(ying)響(xiang)(xiang)，滿(man)足(zu)(zu)防(fang)汛(xun)(xun)搶(qiang)險(xian)(xian)要(yao)求(qiu)。凈(jing)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)廠(chang)(chang)至(zhi)(zhi)黃(huang)(huang)(huang)(huang)河(he)(he)大(da)(da)(da)橋(qiao)(qiao)段(duan)(duan)(duan)設(she)計(ji)(ji)(ji)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)位(wei)(wei)904.27m，此段(duan)(duan)(duan)僅有武警(jing)營地和黃(huang)(huang)(huang)(huang)河(he)(he)大(da)(da)(da)橋(qiao)(qiao)，安(an)(an)全(quan)超(chao)高(gao)(gao)(gao)(gao)(gao)(gao)為(wei)(wei)(wei)(wei)2.23m~3.93m，水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)位(wei)(wei)對(dui)(dui)(dui)(dui)路面無淹沒影(ying)(ying)響(xiang)(xiang)，滿(man)足(zu)(zu)防(fang)汛(xun)(xun)搶(qiang)險(xian)(xian)要(yao)求(qiu)。

相關建議

項(xiang)目(mu)(mu)施(shi)(shi)(shi)工(gong)(gong)過程(cheng)(cheng)中如損(sun)壞原河(he)(he)道(dao)護(hu)(hu)岸，施(shi)(shi)(shi)工(gong)(gong)完成后需及時按設(she)(she)(she)計斷面恢復，并使護(hu)(hu)岸上下(xia)游(you)平順銜接。由(you)于汛期(qi)(qi)可能發生(sheng)坍塌、漫溢等(deng)險情，工(gong)(gong)程(cheng)(cheng)運行管理部門應(ying)(ying)密切(qie)關(guan)注(zhu)河(he)(he)岸沖(chong)刷(shua)、塌岸、邊(bian)坡穩定性等(deng)問(wen)題(ti)，做好(hao)重點防護(hu)(hu)，做好(hao)防洪(hong)應(ying)(ying)急預案(an)以(yi)(yi)及項(xiang)目(mu)(mu)區內(nei)工(gong)(gong)程(cheng)(cheng)被(bei)破壞后的(de)應(ying)(ying)急方案(an)。對(dui)于護(hu)(hu)岸修(xiu)復工(gong)(gong)程(cheng)(cheng)的(de)影響(xiang)(xiang)需進一步觀測。若(ruo)對(dui)河(he)(he)道(dao)整(zheng)治工(gong)(gong)程(cheng)(cheng)、堤岸防護(hu)(hu)工(gong)(gong)程(cheng)(cheng)產生(sheng)影響(xiang)(xiang)，需進行相關(guan)分析(xi)，并采(cai)取一定的(de)補救措施(shi)(shi)(shi)。護(hu)(hu)坡工(gong)(gong)程(cheng)(cheng)實施(shi)(shi)(shi)期(qi)(qi)間，應(ying)(ying)加(jia)強水(shui)(shui)環境保(bao)護(hu)(hu)，規劃施(shi)(shi)(shi)工(gong)(gong)物料堆(dui)放區域，明(ming)確物料存放位(wei)置，避免(mian)和減(jian)運行期(qi)(qi)間的(de)產生(sheng)的(de)廢物對(dui)環境及河(he)(he)道(dao)行洪(hong)、水(shui)(shui)質等(deng)的(de)影響(xiang)(xiang)，嚴(yan)禁向(xiang)河(he)(he)道(dao)內(nei)棄渣、排污(wu)。施(shi)(shi)(shi)工(gong)(gong)期(qi)(qi)要(yao)與河(he)(he)道(dao)主管部門、水(shui)(shui)情部門根據(ju)洪(hong)水(shui)(shui)預報(bao)合(he)理安排施(shi)(shi)(shi)工(gong)(gong)導(dao)流及施(shi)(shi)(shi)工(gong)(gong)工(gong)(gong)期(qi)(qi)，以(yi)(yi)確保(bao)順利施(shi)(shi)(shi)工(gong)(gong)。因工(gong)(gong)程(cheng)(cheng)建(jian)設(she)(she)(she)需要(yao)在河(he)(he)道(dao)管理范(fan)圍內(nei)施(shi)(shi)(shi)工(gong)(gong)，建(jian)設(she)(she)(she)單(dan)位(wei)應(ying)(ying)與河(he)(he)道(dao)管理部門保(bao)持聯(lian)系，協商河(he)(he)道(dao)管理范(fan)圍內(nei)的(de)土地征、占、用等(deng)問(wen)題(ti)以(yi)(yi)及管理范(fan)圍內(nei)地貌、護(hu)(hu)岸等(deng)水(shui)(shui)利設(she)(she)(she)施(shi)(shi)(shi)的(de)損(sun)毀和恢復問(wen)題(ti)。

作者(zhe)：谷瓊瓊 王璞如