| 查看: 516 | 回复: 3 | |||
sgh_119至尊木虫 (职业作家)
|
[交流]
【Pure water】Swiss Complete World’s Longest Tunnel
|
|
Swiss engineers drilling the world's longest tunnel broke through the last section of rock on Friday, crowning more than a decade of work. The 57.1-km (35.5-mile) rail tunnel under the Gotthard massif will enter service in 2017, taking some of the tens of thousands of tons of freight that crosses the Alps by road every day. Shown live on Swiss television, a 10-meter-wide drill ceremonially ground away the last few centimeters of rock. "Together we risked a lot. Together we achieved a lot, because we know the mountain is large but we are small," said Swiss Environment and Transport Minister Moritz Leuenberger. The project is costing more than 12 billion Swiss francs ($12.58 billion), and claimed the lives of eight workers. More than 200 trains traveling at speeds of up to 250 km per hour (150 mph) will be able to pass through the tunnel each day and the amount of freight transported will nearly double to about 40 million tons per year, according to Alp Transit Gotthard, which is building the tunnel. It will help reduce the travel time between from Zurich and Milan by an hour, to two hours and 40 minutes. About 13 million cubic meters of rock have been dug out of the mountain, equivalent to five times the volume of Egypt's Great Pyramid at Giza. Previously, the longest tunnel was the undersea Seikan rail link between the Japanese islands of Honshu and Hokkaido, at 53.85 km (33.46 miles), followed by the 50.45 km (31.35 mile) rail tunnel linking Britain with France under the Channel. |
回复此楼» 猜你喜欢
论文终于录用啦！满足毕业条件了
已经有27人回复
-
假如你的研究生提出不合理要求
已经有3人回复
-
所感
已经有3人回复
-
要不要辞职读博？
已经有7人回复
-
不自信的我
已经有11人回复
-
北核录用
已经有3人回复
-
实验室接单子
已经有3人回复
-
磺酰氟产物，毕不了业了！
已经有8人回复
-
求助:我三月中下旬出站，青基依托单位怎么办？
已经有10人回复
-
26申博（荧光探针方向，有机合成）
已经有4人回复
纯表无罪
木虫 (著名写手)
- ESEPI: 2
- 应助: 0 (幼儿园)
- 金币: 3649.5
- 散金: 763
- 红花: 4
- 沙发: 25
- 帖子: 1981
- 在线: 223.4小时
- 虫号: 1081280
- 注册: 2010-08-24
2楼2010-10-17 00:34:39
shuwenhe
版主 (文坛精英)
冷月大师
- 应助: 18 (小学生)
- 贵宾: 2.145
- 金币: 49584.9
- 散金: 12156
- 红花: 50
- 沙发: 602
- 帖子: 36472
- 在线: 1904.6小时
- 虫号: 314293
- 注册: 2007-02-25
- 性别: GG
- 专业: 生物化学
- 管辖: 金融投资
3楼2010-10-17 06:08:19
xia_chong
金虫 (文坛精英)
- ESEPI: 43
- 应助: 0 (幼儿园)
- 贵宾: 1.591
- 金币: 10270.8
- 散金: 2377
- 红花: 34
- 沙发: 160
- 帖子: 12455
- 在线: 1941.8小时
- 虫号: 804303
- 注册: 2009-07-06
- 性别: GG
- 专业: 粒子物理学和场论
- 管辖: English Cafe
4楼2010-10-17 09:15:43