極限火車
所屬欄目：見證·發現之旅
所屬頻道：CCTV-1綜合
年份：2010
展開全部
簡介：見證青藏鐵路建造者們克服凍土、高寒缺氧等重重困難，在高原腹地的風火山打通了世界海拔最高的隧道，在高聳入雲的唐古拉山修建了世界最高的火車站，在凍土冰層帶鋪設出550公里的鐵道線。青藏公路已經誕生55年，今年正在接受改造，新的凍土保護措施被利用。青藏公路上的凍土研究對與青藏鐵路有重要的研究價值，凍土學家們希望做出一種特殊材料保護路基。碎石能夠保護凍土的溫度，人們很早就發現亂石堆下的溫度要比普通地表溫度低很多，只是沒有被及時利用到凍土層上路基。而全球變暖又給凍土學家們提出了難題。塊石冷卻路基的方法讓專家們從中探測出有效的方法。據可可西裏保護區管理局工作人員多年考察見證，青藏鐵路並未阻礙藏羚羊的遷徙。青藏鐵路建設挑戰了人類建設史的極限。收起
![[em:1:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/1.gif)
![[em:3:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/3.gif)
![[em:4:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/4.gif)
![[em:5:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/5.gif)
![[em:6:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/6.gif)
![[em:7:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/7.gif)
![[em:8:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/8.gif)
![[em:9:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/9.gif)
![[em:10:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/10.gif)
![[em:11:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/11.gif)
![[em:12:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/12.gif)
![[em:13:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/13.gif)
![[em:14:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/14.gif)
![[em:15:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/15.gif)
![[em:16:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/16.gif)
![[em:17:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/17.gif)
![[em:18:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/18.gif)
![[em:19:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/19.gif)
![[em:20:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/20.gif)
![[em:21:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/21.gif)
![[em:22:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/22.gif)
![[em:23:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/23.gif)
![[em:24:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/24.gif)
![[em:25:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/25.gif)
![[em:26:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/26.gif)
![[em:27:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/27.gif)
![[em:28:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/28.gif)
![[em:29:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/29.gif)
![[em:30:]](https://big5.cctv.com/gate/big5/tv.cctv.com//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1406601454073701/30.gif)
