芒果视频

基本介紹

成都至(zhi)貴(gui)(gui)陽(yang)高(gao)(gao)速(su)鐵(tie)路(lu)是(shi)我國(guo)西北、西南(nan)至(zhi)華(hua)南(nan)的(de)區(qu)(qu)際快速(su)鐵(tie)路(lu)新通道，全(quan)長(chang)(chang)515公里，總投資646億元，沿線多處于高(gao)(gao)山河(he)(he)谷(gu)(gu)(gu)地(di)(di)(di)(di)(di)帶，地(di)(di)(di)(di)(di)質情況差。整(zheng)(zheng)條鐵(tie)路(lu)將跨越(yue)大(da)(da)渡河(he)(he)、岷江、金沙江三(san)大(da)(da)河(he)(he)流，線路(lu)79%為(wei)(wei)(wei)(wei)(wei)(wei)橋(qiao)(qiao)(qiao)(qiao)隧，其中(zhong)(zhong)正(zheng)線橋(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)總計365座(zuo)(zuo)。因(yin)此，成貴(gui)(gui)鐵(tie)路(lu)被稱(cheng)為(wei)(wei)(wei)(wei)(wei)(wei)“世界第一(yi)條山區(qu)(qu)高(gao)(gao)速(su)鐵(tie)路(lu)”。建成后，貴(gui)(gui)陽(yang)至(zhi)成都的(de)火(huo)車時(shi)間(jian)將由現在的(de)12小時(shi)左(zuo)右縮短至(zhi)3小時(shi)。鴨池(chi)河(he)(he)特(te)大(da)(da)橋(qiao)(qiao)(qiao)(qiao)為(wei)(wei)(wei)(wei)(wei)(wei)成貴(gui)(gui)高(gao)(gao)鐵(tie)6座(zuo)(zuo)重點(dian)橋(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)之(zhi)(zhi)一(yi)，大(da)(da)橋(qiao)(qiao)(qiao)(qiao)全(quan)長(chang)(chang)971米(mi)，建造地(di)(di)(di)(di)(di)址構(gou)造復雜，為(wei)(wei)(wei)(wei)(wei)(wei)典型(xing)的(de)喀(ka)斯特(te)高(gao)(gao)原(yuan)、峽谷(gu)(gu)(gu)地(di)(di)(di)(di)(di)貌類型(xing)。全(quan)長(chang)(chang)971米(mi)的(de)成貴(gui)(gui)鐵(tie)路(lu)鴨池(chi)河(he)(he)特(te)大(da)(da)橋(qiao)(qiao)(qiao)(qiao)，拱(gong)(gong)(gong)(gong)肋采(cai)用(yong)(yong)鋼(gang)(gang)(gang)砼結(jie)合拱(gong)(gong)(gong)(gong)方案(an)，拱(gong)(gong)(gong)(gong)上部分為(wei)(wei)(wei)(wei)(wei)(wei)雙(shuang)(shuang)(shuang)柱式(shi)框架(jia)墩(dun)，主(zhu)梁(liang)(liang)為(wei)(wei)(wei)(wei)(wei)(wei)單箱(xiang)三(san)室(shi)預(yu)(yu)(yu)應(ying)(ying)力(li)(li)混凝(ning)(ning)土梁(liang)(liang)。拱(gong)(gong)(gong)(gong)座(zuo)(zuo)開(kai)挖深(shen)度44米(mi)，挖方量7.54萬(wan)立方米(mi)；單個(ge)拱(gong)(gong)(gong)(gong)座(zuo)(zuo)混凝(ning)(ning)土體(ti)積為(wei)(wei)(wei)(wei)(wei)(wei)2.31萬(wan)立方米(mi)，過(guo)渡橋(qiao)(qiao)(qiao)(qiao)墩(dun)墩(dun)身(shen)(shen)高(gao)(gao)度最高(gao)(gao)為(wei)(wei)(wei)(wei)(wei)(wei)67.52米(mi)，橋(qiao)(qiao)(qiao)(qiao)面(mian)(mian)至(zhi)水(shui)面(mian)(mian)244米(mi)。全(quan)橋(qiao)(qiao)(qiao)(qiao)需用(yong)(yong)鋼(gang)(gang)(gang)筋(jin)9900噸，鋼(gang)(gang)(gang)材12000噸，預(yu)(yu)(yu)應(ying)(ying)力(li)(li)鋼(gang)(gang)(gang)索(suo)780噸。峽谷(gu)(gu)(gu)地(di)(di)(di)(di)(di)區(qu)(qu)（鴨池(chi)河(he)(he)河(he)(he)谷(gu)(gu)(gu)）基(ji)本(ben)為(wei)(wei)(wei)(wei)(wei)(wei)陡(dou)峻的(de)斜坡(po)及峭壁地(di)(di)(di)(di)(di)形(xing)(xing)，谷(gu)(gu)(gu)頂高(gao)(gao)程(cheng)(cheng)(cheng)大(da)(da)致(zhi)在1000～1100米(mi)左(zuo)右，其中(zhong)(zhong)1100～1000米(mi)為(wei)(wei)(wei)(wei)(wei)(wei)斜坡(po)地(di)(di)(di)(di)(di)形(xing)(xing)，為(wei)(wei)(wei)(wei)(wei)(wei)寬谷(gu)(gu)(gu)期地(di)(di)(di)(di)(di)貌。1000米(mi)高(gao)(gao)程(cheng)(cheng)(cheng)以(yi)下(xia)(xia)以(yi)陡(dou)壁地(di)(di)(di)(di)(di)形(xing)(xing)為(wei)(wei)(wei)(wei)(wei)(wei)主(zhu)，為(wei)(wei)(wei)(wei)(wei)(wei)峽谷(gu)(gu)(gu)期地(di)(di)(di)(di)(di)貌，切深(shen)達170～300米(mi)，河(he)(he)谷(gu)(gu)(gu)狹窄、岸坡(po)陡(dou)峻，巖(yan)(yan)溶(rong)形(xing)(xing)態(tai)以(yi)巖(yan)(yan)溶(rong)洞(dong)穴為(wei)(wei)(wei)(wei)(wei)(wei)主(zhu)，兩(liang)岸溶(rong)洞(dong)及巖(yan)(yan)溶(rong)地(di)(di)(di)(di)(di)下(xia)(xia)水(shui)具成層性分布特(te)點(dian)。大(da)(da)橋(qiao)(qiao)(qiao)(qiao)全(quan)長(chang)(chang)971米(mi)，跨徑布置為(wei)(wei)(wei)(wei)(wei)(wei)：8×32.7米(mi)簡支(zhi)箱(xiang)梁(liang)(liang)+（32.7+2×61.75）米(mi) T構(gou)梁(liang)(liang)+（1-436）米(mi)中(zhong)(zhong)承(cheng)式(shi)鋼(gang)(gang)(gang)-砼結(jie)合拱(gong)(gong)(gong)(gong)橋(qiao)(qiao)(qiao)(qiao)+（2×61.75+32.7）米(mi) T構(gou)梁(liang)(liang)+2×24.7 米(mi)簡支(zhi)箱(xiang)梁(liang)(liang)。主(zhu)橋(qiao)(qiao)(qiao)(qiao)為(wei)(wei)(wei)(wei)(wei)(wei)（1-436）米(mi)中(zhong)(zhong)承(cheng)式(shi)鋼(gang)(gang)(gang)-砼結(jie)合拱(gong)(gong)(gong)(gong)橋(qiao)(qiao)(qiao)(qiao),拱(gong)(gong)(gong)(gong)肋采(cai)用(yong)(yong)鋼(gang)(gang)(gang)-砼結(jie)合拱(gong)(gong)(gong)(gong)方案(an)，拱(gong)(gong)(gong)(gong)上立柱采(cai)用(yong)(yong)雙(shuang)(shuang)(shuang)柱式(shi)框架(jia)墩(dun)，主(zhu)梁(liang)(liang)采(cai)用(yong)(yong)單箱(xiang)三(san)室(shi)預(yu)(yu)(yu)應(ying)(ying)力(li)(li)混凝(ning)(ning)土梁(liang)(liang)。主(zhu)橋(qiao)(qiao)(qiao)(qiao)拱(gong)(gong)(gong)(gong)座(zuo)(zuo)為(wei)(wei)(wei)(wei)(wei)(wei)整(zheng)(zheng)體(ti)嵌巖(yan)(yan)基(ji)礎，拱(gong)(gong)(gong)(gong)座(zuo)(zuo)基(ji)礎尺寸分別為(wei)(wei)(wei)(wei)(wei)(wei)60.0×28.5m×高(gao)(gao)30.2米(mi)(成都側(ce))、50.0×28.5m×高(gao)(gao)26.2米(mi)（貴(gui)(gui)陽(yang)側(ce)）。主(zhu)橋(qiao)(qiao)(qiao)(qiao)過(guo)渡墩(dun)直接支(zhi)承(cheng)在拱(gong)(gong)(gong)(gong)座(zuo)(zuo)基(ji)礎上，墩(dun)身(shen)(shen)采(cai)用(yong)(yong)薄壁空心墩(dun)，圓端形(xing)(xing)截(jie)面(mian)(mian)，四(si)向變坡(po)，坡(po)度1:40（橫(heng)向）、1:35（縱向），墩(dun)身(shen)(shen)高(gao)(gao)度67.526米(mi)。引橋(qiao)(qiao)(qiao)(qiao)結(jie)構(gou)形(xing)(xing)式(shi)采(cai)用(yong)(yong)（2×61.75+32.7）米(mi)預(yu)(yu)(yu)應(ying)(ying)力(li)(li)混凝(ning)(ning)土T構(gou)和32.7米(mi)、24.7米(mi)跨預(yu)(yu)(yu)應(ying)(ying)力(li)(li)混凝(ning)(ning)土簡支(zhi)箱(xiang)梁(liang)(liang)。如(ru)果(guo)只是(shi)橋(qiao)(qiao)(qiao)(qiao)長(chang)(chang)和跨度，無論說起來(lai)(lai)、聽起來(lai)(lai)、看起來(lai)(lai)，規模都算(suan)不上太大(da)(da)。之(zhi)(zhi)所以(yi)被冠(guan)以(yi)“特(te)大(da)(da)橋(qiao)(qiao)(qiao)(qiao)”之(zhi)(zhi)名，是(shi)因(yin)為(wei)(wei)(wei)(wei)(wei)(wei)它的(de)主(zhu)橋(qiao)(qiao)(qiao)(qiao)為(wei)(wei)(wei)(wei)(wei)(wei)跨徑436米(mi)的(de)中(zhong)(zhong)承(cheng)式(shi)鋼(gang)(gang)(gang)混結(jie)合拱(gong)(gong)(gong)(gong)橋(qiao)(qiao)(qiao)(qiao)，這種橋(qiao)(qiao)(qiao)(qiao)型(xing)和跨度，在中(zhong)(zhong)承(cheng)式(shi)雙(shuang)(shuang)(shuang)線鐵(tie)路(lu)橋(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)中(zhong)(zhong)是(shi)首(shou)例，讓它當之(zhi)(zhi)無愧地(di)(di)(di)(di)(di)成為(wei)(wei)(wei)(wei)(wei)(wei)了(le)成貴(gui)(gui)鐵(tie)路(lu)全(quan)線橋(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)工程(cheng)(cheng)(cheng)僅有的(de)兩(liang)個(ge)控制性工程(cheng)(cheng)(cheng)之(zhi)(zhi)一(yi)。

建筑特色

鴨(ya)池河特大(da)橋之特，在于無(wu)先例可以(yi)參考(kao)，難在無(wu)經驗(yan)可以(yi)借鑒，難在桁架提籃(lan)拱(gong)拱(gong)肋結構(gou)復(fu)雜(za)，拱(gong)肋制造、拼裝精度要(yao)求(qiu)高(gao)，拱(gong)肋外(wai)包混凝(ning)土技術(shu)要(yao)求(qiu)高(gao)，線(xian)形(xing)控制難度大(da)。

由于(yu)技(ji)(ji)術(shu)含(han)量太(tai)高，相(xiang)關(guan)部門專門開(kai)展了(le)主(zhu)橋(qiao)抗風性能、鋼(gang)砼結合拱(gong)肋構(gou)(gou)造、拱(gong)座大(da)(da)體積混凝土施(shi)工技(ji)(ji)術(shu)、拱(gong)肋鋼(gang)結構(gou)(gou)預埋件安裝及定(ding)位(wei)(wei)施(shi)工技(ji)(ji)術(shu)、大(da)(da)跨大(da)(da)噸位(wei)(wei)纜索設計及扣掛(gua)施(shi)工技(ji)(ji)術(shu)、吊(diao)掛(gua)法現澆拱(gong)圈內主(zhu)梁(liang)施(shi)工技(ji)(ji)術(shu)、大(da)(da)跨度拱(gong)橋(qiao)吊(diao)桿安裝及張拉控制技(ji)(ji)術(shu)等多(duo)項專題研究，全方位(wei)(wei)確(que)保(bao)大(da)(da)橋(qiao)的順利施(shi)工。

鴨池河特(te)大(da)(da)橋的10號(hao)、11號(hao)橋墩是(shi)制約全橋工(gong)(gong)程進(jin)度的關(guan)鍵控制點。為確保全橋總體工(gong)(gong)程進(jin)度，負(fu)責施工(gong)(gong)的中鐵大(da)(da)橋局成(cheng)貴鐵路(lu)5標第三(san)項目分部，從今年(nian)3月(yue)14日開始(shi)，組織了大(da)(da)干100天(tian)暨“六比六創”大(da)(da)橋杯勞(lao)動(dong)競賽活動(dong)。擬通過勞(lao)動(dong)競賽的形式，全面調動(dong)干部職工(gong)(gong)的積極性，確保5月(yue)25日前完(wan)成(cheng)扣塔拼裝，6月(yue)25日前完(wan)成(cheng)纜塔拼裝。

據中鐵大橋(qiao)局(ju)施工負責人介(jie)紹，目(mu)前(qian)大橋(qiao)拱(gong)肋首節定位支架(jia)已經(jing)完(wan)成，預計5月(yue)25日(ri)(ri)完(wan)成拱(gong)座(zuo)預留槽及拱(gong)腳混凝土施工，6月(yue)17日(ri)(ri)前(qian)完(wan)成墩身(shen)工程。

活動及其他

這(zhe)是一個(ge)不一樣的地(di)方，山美(mei)，水美(mei)，人更美(mei)！山會讓(rang)(rang)你(ni)(ni)嘆(tan)，水會讓(rang)(rang)你(ni)(ni)醉(zui)，人會讓(rang)(rang)你(ni)(ni)戀(lian)！鴨池河(he)(he)的景致會讓(rang)(rang)你(ni)(ni)難忘(wang)：山勝(sheng)似三峽，水勝(sheng)似漓江！在索(suo)風營(ying)電站上游大(da)約8公(gong)里(li)的地(di)方，黔西縣鐵石(shi)鄉米(mi)新(xin)寨村與清鎮市暗流鎮沙男村隔河(he)(he)相望，陡(dou)峭的山勢和(he)深切的峽谷，既(ji)為(wei)兩岸帶來了(le)美(mei)麗的風光，也帶來了(le)諸多的不便，比如(ru)交通(tong)。

當(dang)然，不(bu)便都是(shi)過去(qu)的(de)事。現在(zai)，因為(wei)成貴鐵(tie)路鴨池河特大(da)橋的(de)存在(zai)，這里的(de)風(feng)光(guang)更加瑰麗，交通(tong)狀(zhuang)況也正(zheng)在(zai)改變(bian)。

事實(shi)上，建(jian)設(she)(she)(she)者們燦(can)爛笑容的(de)背后，也意味(wei)著這(zhe)條拱橋的(de)修建(jian)克服了(le)(le)種種困難。一座承載高速鐵(tie)路(lu)的(de)山區拱橋，鋼拱肋(lei)的(de)架設(she)(she)(she)必須(xu)采用纜索(suo)吊(diao)機(ji)(ji)“斜拉扣掛”法施(shi)工，需要(yao)一邊安(an)裝(zhuang)拱橋的(de)拱肋(lei)，一邊建(jian)一座斜拉橋。這(zhe)種施(shi)工方法要(yao)求纜索(suo)吊(diao)機(ji)(ji)必須(xu)足夠大(da)(da)(da)，足夠高。“這(zhe)是(shi)我(wo)們中鐵(tie)大(da)(da)(da)橋局為大(da)(da)(da)橋建(jian)設(she)(she)(she)自主(zhu)研發(fa)、設(she)(she)(she)計的(de)大(da)(da)(da)型起重(zhong)(zhong)(zhong)裝(zhuang)備(bei)纜索(suo)吊(diao)，目前(qian)是(shi)我(wo)國(guo)同類(lei)型中最(zui)大(da)(da)(da)規模的(de)橫(heng)移式纜索(suo)吊(diao)，其(qi)單(dan)次吊(diao)重(zhong)(zhong)(zhong)最(zui)大(da)(da)(da)單(dan)件吊(diao)裝(zhuang)重(zhong)(zhong)(zhong)量270噸，也刷(shua)新了(le)(le)國(guo)內同類(lei)起重(zhong)(zhong)(zhong)設(she)(she)(she)備(bei)施(shi)工紀錄。”施(shi)工現(xian)場相關負責人(ren)介紹。

建設的難度和技術的先進，從另(ling)一組數據(ju)就可以看得出，纜索吊機跨(kua)徑(jing)460米(mi)、吊重(zhong)240噸(dun)，相(xiang)當于同時吊起70頭成年大象；吊機塔架(jia)184米(mi)，吊機頂(ding)距水面344米(mi)，相(xiang)當于115層(ceng)樓高(gao)。拱肋(lei)一節節越架(jia)越高(gao)，最(zui)后高(gao)度距水面270米(mi)。也就是(shi)說，施工面基本都在300米(mi)左右(you)的高(gao)空。

實際(ji)上，這(zhe)座(zuo)橋(qiao)(qiao)梁創(chuang)下的(de)紀錄遠(yuan)不止這(zhe)些。因(yin)為(wei)橋(qiao)(qiao)址處(chu)地質情(qing)況為(wei)典型的(de)喀斯特高原、峽谷(gu)地貌(mao)類型，河(he)道兩岸巖崖(ya)陡(dou)峭，地勢險(xian)峻(jun)，有部分巖崖(ya)與河(he)面夾(jia)角甚至達到(dao)90度。為(wei)了解決(jue)這(zhe)一難題，設計(ji)(ji)方(fang)(fang)經過科學計(ji)(ji)算和反復論(lun)證，創(chuang)新地提(ti)出了中(zhong)承式空腹鋼(gang)混結合提(ti)籃(lan)拱橋(qiao)(qiao)的(de)橋(qiao)(qiao)型方(fang)(fang)案，是世界上首座(zuo)用于雙(shuang)線高速鐵路上的(de)中(zhong)承式空腹鋼(gang)混結合提(ti)籃(lan)拱橋(qiao)(qiao)。