日批在线视频_内射毛片内射国产夫妻_亚洲三级小视频_在线观看亚洲大片短视频_女性向h片资源在线观看_亚洲最大网

USEUROPEAFRICAASIA 中文雙語Fran?ais
Business
Home / Business / Industries

Challenging times on 'high-speed Silk Road'

By Cui Jia | China Daily | Updated: 2013-07-12 07:38

Wind zones

In Xinjiang, strong winds are a major threat to the safety of the high-speed railway, according to Ma Xizhang of the project management department of Xinjiang Lanzhou-Urumqi Railway Co, which is responsible for construction of a 710-km stretch of railway in Xinjiang.

Challenging times on 'high-speed Silk Road'

China's first windproof railway tunnel, in the Shisanjianfang district of Hami, where the winds are fierce and gales occur on more than 250 days of the year. [Photo / China Daily]

The high-speed railway will pass through three of the region's most-feared areas, where winds traveling at speeds of up to 166 km per hour regularly disrupt operations on the old Lanzhou-Urumqi railway and have even been known to overturn trains.

"The nature of the high-speed railway means the threat posed by the wind is much higher than for a conventional railway, so windproofing projects are crucial to its success," said Ma.

Earlier this week, China's first windproof railway tunnel was completed in the Shisanjianfang district of Hami, where the winds are strongest and gales occur on more than 250 days of the year.

Without citing a specific figure, Ma said the construction costs were high but the 1-km-long tunnel is essential. "When the company's inspection team arrived in the area in 2010, the windows in their cars were smashed by stones carried on the sudden, strong winds. If that happened to a high-speed train, it would be a disaster."

More than 65 percent of the Lanzhou-Urumqi high-speed railway in Xinjiang will cross these wind zones. In addition to the tunnels, windbreaks are also being erected to further ensure the safety of the trains. The scale of windproofing is the largest of all the high-speed railways currently under construction in China.

Most Viewed in 24 Hours
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
主站蜘蛛池模板: 中文字幕一区不卡 | 亚洲欧洲在线播放 | 久久不卡区| 亚洲一级免费视频 | 亚洲一区二区三区在线视频 | 欧美日韩国产在线一区 | 91精品国产成人 | 日韩精品四区 | 91视频一区 | 国产小视频在线观看 | av一区二区三区四区 | 欧美久久久精品 | 日韩欧美在线看 | 日日燥夜夜燥 | 欧美成人精品 | 国产精品成人国产乱一区 | 成人网影 | 亚色图 | 国产探花 | 成人污视频在线观看 | 91在线日韩 | 欧美爱爱免费视频 | 国产午夜精品福利 | 欧美成人免费观看 | 久久久久久一区二区三区 | 中文字幕手机在线观看 | 99在线视频精品 | 国产女主播喷水高潮网红在线 | 中文字幕在线免费播放 | 日韩成人一区 | 久久色资源网 | 中文字幕永久在线视频 | 日本天天操 | 99热这里只有精品8 h片免费在线观看 | a级毛毛片| 九九热在线视频免费观看 | 欧美性猛交xxxx黑人猛交 | 九热在线 | 日韩欧美大片在线观看 | 国产高清精品在线 | 国产第1页 |