三九養(yǎng)生堂記者 鄧肯·蓋伊 報道
精彩| 項??(xiang)目??(mu)本??(ben)身??(shen)的??(de)巨??(ju)大??(da)進??(jin)出??(chu)口??(kou)高??(gao)差秘(cha)、所??(suo)處祝(chu)的??(de)高??(gao)寒??(han)高??(gao)海??(hai)拔??(ba)地?(di)理??(li)位??(wei)置??(zhi)以??(yi)及??(ji)穿??(chuan)越??(yue)多??(duo)個??(ge)斷??(duan)裂??(lie)帶??(dai)施??(shi)工??(gong)給?(gei)項??(xiang)目??(mu)建??(jian)設(shè)??(she)帶??(dai)來??(lai)巨?(ju)大??(da)挑??(tiao)戰(zhàn)??(zhan)??。??為??(wei)降?(jiang)低??(di)隧??(sui)道??(dao)坡??(po)度??(du)?，隧??(sui)道??(dao)采?(cai)取??(qu)雙??(shuang)洞??(dong)雙??(shuang)向??(xiang)分??(fen)離??(li)式??(shi)特??(te)長?(chang)“S”形??(xing)曲??(qu)線??(xian)設(shè)??(she)計??(ji)?，經(jīng)??(jing)歷??(li)3次??(ci)左??(zuo)右??(you)轉(zhuǎn)??(zhuan)向??(xiang)?，累??(lei)積??(ji)轉(zhuǎn)??(zhuan)向??(xiang)341度??(du)?，使?(shi)隧??(sui)道??(dao)縱??(zong)坡??(po)控??(kong)制?(zhi)在??(zai)極??(ji)限??(xian)值??(zhi)之??(zhi)內(nèi)??(nei)???！ ∨??(pao)馬??(ma)山??(shan)1號??(hao)隧??(sui)道?(dao)位??(wei)于??(yu)四?(si)川??(chuan)省??(sheng)甘??(gan)孜??(zi)州??(zhou)康??(kang)定??(ding)市??(shi)??，起??(qi)于??(yu)升?(sheng)航??(hang)村??(cun)??，止??(zhi)于??(yu)跑??(pao)馬??(ma)山??(shan)村??(cun)??，左??(zuo)洞??(dong)長??(chang)8865米??(mi)??，右??(you)洞?(dong)長??(chang)8780米??(mi)??，最??(zui)大??(da)埋??(mai)深祝(shen)1250米??(mi)??。??隧??(sui)道??(dao)進??(jin)出??(chu)口??(kou)海??(hai)拔?(ba)高??(gao)差??(cha)達??(da)220米??(mi)??，相??(xiang)當(dāng)??(dang)于??(yu)80層??(ceng)樓??(lou)高??(gao)??，較??(jiao)已??(yi)建??(jian)成??(cheng)的??(de)云??(yun)南??(nan)福??(fu)宜??(yi)高??(gao)速??(su)萬??(wan)溪??(xi)沖??(chong)隧??(sui)道??(dao)多??(duo)46.4米??(mi)??，屬?(shu)世??(shi)界??(jie)高??(gao)速??(su)公??(gong)路??(lu)單??(dan)體??(ti)隧??(sui)道?(dao)進?(jin)出??(chu)口??(kou)高?(gao)差?(cha)之??(zhi)最??(zui)??。
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責(zé)編：楊之光
審核：吉尼
責(zé)編：呂程平