芒果视频下载

基本介紹

成(cheng)(cheng)(cheng)(cheng)都至(zhi)貴(gui)(gui)陽(yang)高(gao)速(su)(su)鐵(tie)(tie)路(lu)(lu)是(shi)(shi)(shi)我(wo)國西北、西南至(zhi)華南的(de)(de)區際(ji)快速(su)(su)鐵(tie)(tie)路(lu)(lu)新(xin)通(tong)道，全(quan)(quan)長(chang)515公里，總(zong)投資646億元(yuan)，沿線多(duo)處于高(gao)山河谷(gu)地(di)(di)(di)(di)帶，地(di)(di)(di)(di)質情(qing)況差。整條鐵(tie)(tie)路(lu)(lu)將(jiang)跨越大(da)(da)(da)渡(du)河、岷江、金沙(sha)江三大(da)(da)(da)河流(liu)，線路(lu)(lu)79%為(wei)(wei)(wei)橋(qiao)(qiao)(qiao)隧(sui)，其(qi)中(zhong)(zhong)(zhong)正線橋(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)總(zong)計365座(zuo)。因此，成(cheng)(cheng)(cheng)(cheng)貴(gui)(gui)鐵(tie)(tie)路(lu)(lu)被(bei)稱為(wei)(wei)(wei)“世界第一條山區高(gao)速(su)(su)鐵(tie)(tie)路(lu)(lu)”。建成(cheng)(cheng)(cheng)(cheng)后，貴(gui)(gui)陽(yang)至(zhi)成(cheng)(cheng)(cheng)(cheng)都的(de)(de)火車時(shi)間將(jiang)由(you)現(xian)在的(de)(de)12小時(shi)左(zuo)右縮短至(zhi)3小時(shi)。鴨池(chi)河特大(da)(da)(da)橋(qiao)(qiao)(qiao)為(wei)(wei)(wei)成(cheng)(cheng)(cheng)(cheng)貴(gui)(gui)高(gao)鐵(tie)(tie)6座(zuo)重點橋(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)之一，大(da)(da)(da)橋(qiao)(qiao)(qiao)全(quan)(quan)長(chang)971米(mi)(mi)(mi)(mi)，建造地(di)(di)(di)(di)址(zhi)構(gou)造復雜，為(wei)(wei)(wei)典(dian)型(xing)的(de)(de)喀斯(si)特高(gao)原、峽谷(gu)地(di)(di)(di)(di)貌(mao)類型(xing)。全(quan)(quan)長(chang)971米(mi)(mi)(mi)(mi)的(de)(de)成(cheng)(cheng)(cheng)(cheng)貴(gui)(gui)鐵(tie)(tie)路(lu)(lu)鴨池(chi)河特大(da)(da)(da)橋(qiao)(qiao)(qiao)，拱(gong)(gong)(gong)(gong)肋采用鋼(gang)砼結合(he)(he)拱(gong)(gong)(gong)(gong)方案(an)，拱(gong)(gong)(gong)(gong)上(shang)部分(fen)為(wei)(wei)(wei)雙(shuang)柱(zhu)式(shi)(shi)框架(jia)(jia)墩(dun)，主梁(liang)(liang)(liang)(liang)為(wei)(wei)(wei)單(dan)箱三室預應(ying)(ying)(ying)(ying)力混(hun)(hun)(hun)凝土(tu)梁(liang)(liang)(liang)(liang)。拱(gong)(gong)(gong)(gong)座(zuo)開挖(wa)深度44米(mi)(mi)(mi)(mi)，挖(wa)方量7.54萬立方米(mi)(mi)(mi)(mi)；單(dan)個拱(gong)(gong)(gong)(gong)座(zuo)混(hun)(hun)(hun)凝土(tu)體積為(wei)(wei)(wei)2.31萬立方米(mi)(mi)(mi)(mi)，過渡(du)橋(qiao)(qiao)(qiao)墩(dun)墩(dun)身(shen)高(gao)度最高(gao)為(wei)(wei)(wei)67.52米(mi)(mi)(mi)(mi)，橋(qiao)(qiao)(qiao)面至(zhi)水面244米(mi)(mi)(mi)(mi)。全(quan)(quan)橋(qiao)(qiao)(qiao)需用鋼(gang)筋9900噸(dun)，鋼(gang)材12000噸(dun)，預應(ying)(ying)(ying)(ying)力鋼(gang)索780噸(dun)。峽谷(gu)地(di)(di)(di)(di)區（鴨池(chi)河河谷(gu)）基(ji)(ji)(ji)本為(wei)(wei)(wei)陡峻(jun)的(de)(de)斜坡(po)及峭壁(bi)地(di)(di)(di)(di)形，谷(gu)頂高(gao)程(cheng)(cheng)(cheng)大(da)(da)(da)致在1000～1100米(mi)(mi)(mi)(mi)左(zuo)右，其(qi)中(zhong)(zhong)(zhong)1100～1000米(mi)(mi)(mi)(mi)為(wei)(wei)(wei)斜坡(po)地(di)(di)(di)(di)形，為(wei)(wei)(wei)寬谷(gu)期地(di)(di)(di)(di)貌(mao)。1000米(mi)(mi)(mi)(mi)高(gao)程(cheng)(cheng)(cheng)以(yi)下(xia)以(yi)陡壁(bi)地(di)(di)(di)(di)形為(wei)(wei)(wei)主，為(wei)(wei)(wei)峽谷(gu)期地(di)(di)(di)(di)貌(mao)，切深達170～300米(mi)(mi)(mi)(mi)，河谷(gu)狹窄、岸坡(po)陡峻(jun)，巖溶形態以(yi)巖溶洞(dong)穴(xue)為(wei)(wei)(wei)主，兩岸溶洞(dong)及巖溶地(di)(di)(di)(di)下(xia)水具成(cheng)(cheng)(cheng)(cheng)層性分(fen)布(bu)特點。大(da)(da)(da)橋(qiao)(qiao)(qiao)全(quan)(quan)長(chang)971米(mi)(mi)(mi)(mi)，跨徑布(bu)置為(wei)(wei)(wei)：8×32.7米(mi)(mi)(mi)(mi)簡(jian)支箱梁(liang)(liang)(liang)(liang)+（32.7+2×61.75）米(mi)(mi)(mi)(mi) T構(gou)梁(liang)(liang)(liang)(liang)+（1-436）米(mi)(mi)(mi)(mi)中(zhong)(zhong)(zhong)承(cheng)(cheng)式(shi)(shi)鋼(gang)-砼結合(he)(he)拱(gong)(gong)(gong)(gong)橋(qiao)(qiao)(qiao)+（2×61.75+32.7）米(mi)(mi)(mi)(mi) T構(gou)梁(liang)(liang)(liang)(liang)+2×24.7 米(mi)(mi)(mi)(mi)簡(jian)支箱梁(liang)(liang)(liang)(liang)。主橋(qiao)(qiao)(qiao)為(wei)(wei)(wei)（1-436）米(mi)(mi)(mi)(mi)中(zhong)(zhong)(zhong)承(cheng)(cheng)式(shi)(shi)鋼(gang)-砼結合(he)(he)拱(gong)(gong)(gong)(gong)橋(qiao)(qiao)(qiao),拱(gong)(gong)(gong)(gong)肋采用鋼(gang)-砼結合(he)(he)拱(gong)(gong)(gong)(gong)方案(an)，拱(gong)(gong)(gong)(gong)上(shang)立柱(zhu)采用雙(shuang)柱(zhu)式(shi)(shi)框架(jia)(jia)墩(dun)，主梁(liang)(liang)(liang)(liang)采用單(dan)箱三室預應(ying)(ying)(ying)(ying)力混(hun)(hun)(hun)凝土(tu)梁(liang)(liang)(liang)(liang)。主橋(qiao)(qiao)(qiao)拱(gong)(gong)(gong)(gong)座(zuo)為(wei)(wei)(wei)整體嵌(qian)巖基(ji)(ji)(ji)礎(chu)(chu)，拱(gong)(gong)(gong)(gong)座(zuo)基(ji)(ji)(ji)礎(chu)(chu)尺寸分(fen)別為(wei)(wei)(wei)60.0×28.5m×高(gao)30.2米(mi)(mi)(mi)(mi)(成(cheng)(cheng)(cheng)(cheng)都側)、50.0×28.5m×高(gao)26.2米(mi)(mi)(mi)(mi)（貴(gui)(gui)陽(yang)側）。主橋(qiao)(qiao)(qiao)過渡(du)墩(dun)直接支承(cheng)(cheng)在拱(gong)(gong)(gong)(gong)座(zuo)基(ji)(ji)(ji)礎(chu)(chu)上(shang)，墩(dun)身(shen)采用薄(bo)壁(bi)空心墩(dun)，圓端形截(jie)面，四向變坡(po)，坡(po)度1:40（橫(heng)向）、1:35（縱向），墩(dun)身(shen)高(gao)度67.526米(mi)(mi)(mi)(mi)。引橋(qiao)(qiao)(qiao)結構(gou)形式(shi)(shi)采用（2×61.75+32.7）米(mi)(mi)(mi)(mi)預應(ying)(ying)(ying)(ying)力混(hun)(hun)(hun)凝土(tu)T構(gou)和(he)(he)32.7米(mi)(mi)(mi)(mi)、24.7米(mi)(mi)(mi)(mi)跨預應(ying)(ying)(ying)(ying)力混(hun)(hun)(hun)凝土(tu)簡(jian)支箱梁(liang)(liang)(liang)(liang)。如(ru)果只是(shi)(shi)(shi)橋(qiao)(qiao)(qiao)長(chang)和(he)(he)跨度，無(wu)論說起(qi)(qi)來(lai)(lai)、聽起(qi)(qi)來(lai)(lai)、看起(qi)(qi)來(lai)(lai)，規(gui)模都算不上(shang)太大(da)(da)(da)。之所以(yi)被(bei)冠以(yi)“特大(da)(da)(da)橋(qiao)(qiao)(qiao)”之名，是(shi)(shi)(shi)因為(wei)(wei)(wei)它的(de)(de)主橋(qiao)(qiao)(qiao)為(wei)(wei)(wei)跨徑436米(mi)(mi)(mi)(mi)的(de)(de)中(zhong)(zhong)(zhong)承(cheng)(cheng)式(shi)(shi)鋼(gang)混(hun)(hun)(hun)結合(he)(he)拱(gong)(gong)(gong)(gong)橋(qiao)(qiao)(qiao)，這種橋(qiao)(qiao)(qiao)型(xing)和(he)(he)跨度，在中(zhong)(zhong)(zhong)承(cheng)(cheng)式(shi)(shi)雙(shuang)線鐵(tie)(tie)路(lu)(lu)橋(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)中(zhong)(zhong)(zhong)是(shi)(shi)(shi)首例，讓它當之無(wu)愧地(di)(di)(di)(di)成(cheng)(cheng)(cheng)(cheng)為(wei)(wei)(wei)了成(cheng)(cheng)(cheng)(cheng)貴(gui)(gui)鐵(tie)(tie)路(lu)(lu)全(quan)(quan)線橋(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)工程(cheng)(cheng)(cheng)僅(jin)有的(de)(de)兩個控制性工程(cheng)(cheng)(cheng)之一。

建筑特色

鴨池河特(te)大橋(qiao)之特(te)，在于(yu)無先例可(ke)以參考，難在無經驗可(ke)以借鑒(jian)，難在桁(heng)架(jia)提(ti)籃拱(gong)拱(gong)肋(lei)結構復雜，拱(gong)肋(lei)制造、拼裝精(jing)度要(yao)求高，拱(gong)肋(lei)外包混(hun)凝土技術要(yao)求高，線形控(kong)制難度大。

由(you)于技術(shu)(shu)含量(liang)太(tai)高，相關部門專門開展了主橋(qiao)抗風性能、鋼砼(tong)結合拱肋構造、拱座大(da)體積混凝土施工(gong)(gong)技術(shu)(shu)、拱肋鋼結構預埋件安(an)裝及(ji)定位施工(gong)(gong)技術(shu)(shu)、大(da)跨(kua)大(da)噸位纜(lan)索設計及(ji)扣掛施工(gong)(gong)技術(shu)(shu)、吊掛法現澆拱圈內主梁施工(gong)(gong)技術(shu)(shu)、大(da)跨(kua)度拱橋(qiao)吊桿安(an)裝及(ji)張拉控(kong)制(zhi)技術(shu)(shu)等多(duo)項(xiang)專題研究，全方位確保(bao)大(da)橋(qiao)的順利施工(gong)(gong)。

鴨池河(he)特大橋(qiao)的(de)10號、11號橋(qiao)墩是制約(yue)全(quan)橋(qiao)工程進(jin)度的(de)關(guan)鍵(jian)控制點。為確保全(quan)橋(qiao)總(zong)體工程進(jin)度，負責施(shi)工的(de)中鐵大橋(qiao)局成(cheng)貴(gui)鐵路5標第三項目分部，從今年3月14日(ri)(ri)開(kai)始，組織了大干(gan)100天(tian)暨“六比六創(chuang)”大橋(qiao)杯(bei)勞動(dong)(dong)(dong)競賽活動(dong)(dong)(dong)。擬通過(guo)勞動(dong)(dong)(dong)競賽的(de)形式，全(quan)面調動(dong)(dong)(dong)干(gan)部職工的(de)積極性(xing)，確保5月25日(ri)(ri)前完(wan)成(cheng)扣塔(ta)拼裝(zhuang)，6月25日(ri)(ri)前完(wan)成(cheng)纜塔(ta)拼裝(zhuang)。

據中鐵大橋局施(shi)工負責人介紹(shao)，目(mu)前(qian)大橋拱(gong)肋(lei)首節定位支(zhi)架已(yi)經完(wan)成(cheng)，預(yu)(yu)計5月25日完(wan)成(cheng)拱(gong)座預(yu)(yu)留(liu)槽及拱(gong)腳混凝土施(shi)工，6月17日前(qian)完(wan)成(cheng)墩身工程。

活動及其他

這是(shi)一個不一樣的(de)(de)地(di)方，山(shan)美(mei)，水美(mei)，人更美(mei)！山(shan)會讓你(ni)(ni)嘆，水會讓你(ni)(ni)醉，人會讓你(ni)(ni)戀！鴨池河(he)的(de)(de)景致會讓你(ni)(ni)難忘：山(shan)勝似(si)三峽，水勝似(si)漓江！在(zai)索風營電站上游(you)大(da)約8公里的(de)(de)地(di)方，黔(qian)西縣鐵石鄉米(mi)新寨村與(yu)清鎮市(shi)暗流鎮沙男村隔河(he)相望，陡峭的(de)(de)山(shan)勢和(he)深切的(de)(de)峽谷，既為兩(liang)岸帶(dai)(dai)來了美(mei)麗的(de)(de)風光，也帶(dai)(dai)來了諸多的(de)(de)不便，比如交通(tong)。

當然(ran)，不便都(dou)是過去的事。現在，因(yin)為(wei)成(cheng)貴(gui)鐵路(lu)鴨池河(he)特大橋的存(cun)在，這(zhe)里的風(feng)光更加瑰麗，交(jiao)通狀況也正在改變。

事實上，建設(she)者們(men)燦爛笑(xiao)容的背后(hou)，也意味著這條拱橋(qiao)(qiao)的修建克(ke)服了種種困(kun)難(nan)。一座承(cheng)載高(gao)速鐵路的山(shan)區(qu)拱橋(qiao)(qiao)，鋼拱肋的架設(she)必(bi)須采用纜索吊(diao)(diao)機(ji)“斜拉(la)(la)扣掛”法(fa)(fa)施工(gong)，需要一邊安裝拱橋(qiao)(qiao)的拱肋，一邊建一座斜拉(la)(la)橋(qiao)(qiao)。這種施工(gong)方法(fa)(fa)要求纜索吊(diao)(diao)機(ji)必(bi)須足夠(gou)(gou)大，足夠(gou)(gou)高(gao)。“這是我(wo)們(men)中鐵大橋(qiao)(qiao)局(ju)為大橋(qiao)(qiao)建設(she)自(zi)主研發、設(she)計的大型(xing)起(qi)重(zhong)裝備纜索吊(diao)(diao)，目前是我(wo)國(guo)同類(lei)型(xing)中最大規模的橫移式纜索吊(diao)(diao)，其單次吊(diao)(diao)重(zhong)最大單件吊(diao)(diao)裝重(zhong)量270噸，也刷新了國(guo)內(nei)同類(lei)起(qi)重(zhong)設(she)備施工(gong)紀錄。”施工(gong)現場相關負責人介(jie)紹。

建設的(de)難度和技(ji)術(shu)的(de)先(xian)進，從另一組數據就(jiu)可以看得出，纜索吊(diao)機(ji)跨徑460米(mi)、吊(diao)重240噸，相(xiang)當于(yu)同時(shi)吊(diao)起70頭成年大象；吊(diao)機(ji)塔架184米(mi)，吊(diao)機(ji)頂距(ju)水(shui)面344米(mi)，相(xiang)當于(yu)115層樓高。拱肋一節節越(yue)架越(yue)高，最后高度距(ju)水(shui)面270米(mi)。也(ye)就(jiu)是說，施工面基本都在300米(mi)左右(you)的(de)高空。

實際(ji)上(shang)，這(zhe)座(zuo)橋(qiao)(qiao)梁創(chuang)下(xia)的紀錄遠(yuan)不止這(zhe)些。因(yin)為橋(qiao)(qiao)址處地(di)質情況為典型的喀斯特高(gao)原、峽谷地(di)貌類型，河道兩岸(an)巖崖陡峭，地(di)勢險(xian)峻，有部分巖崖與河面夾角甚至(zhi)達(da)到90度。為了(le)解決這(zhe)一難題，設計方經過科學計算和反(fan)復論證(zheng)，創(chuang)新地(di)提(ti)出了(le)中承(cheng)式空腹(fu)鋼混(hun)結合(he)提(ti)籃拱(gong)橋(qiao)(qiao)的橋(qiao)(qiao)型方案，是世界上(shang)首(shou)座(zuo)用(yong)于雙線高(gao)速鐵路上(shang)的中承(cheng)式空腹(fu)鋼混(hun)結合(he)提(ti)籃拱(gong)橋(qiao)(qiao)。