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: 国产精品久久久国产盗摄 | 色综综| 亚洲特黄视频 | 日韩六区| 国产黄大片 | 中文区中文字幕免费看 | 精品国产自 | 欧美亚一区二区三区 | 国产精品第十页 | 国产啊v在线观看 | 国产黄视频在线观看 | 在线观看欧美精品 | 日韩av免费一区 | 黄色在线视频网站 | 伊人网伊人影院 | 麻豆国产91在线播放 | 免费黄色a | 男人av网 | 久久久999久久久 | 国产成人精品一区二区三区四区 | 色啪影院 | 国产欧美在线播放 | 四虎综合| 五月香婷婷 | 黄色a视频 | 国产一区二区三区高清视频 | 日本丰满少妇黄大片在线观看 | 亚洲色图欧美日韩 | 国产免费黄色片 | 欧美肥老妇视频 | 欧美日韩精品 | 亚州av网| 亚洲涩色| 五月婷婷六月丁香综合 | 国产香蕉9| 国产成人精品综合久久久久99 | 97av在线 | 另类欧美亚洲 | 成人免费毛片入口 | 香蕉视频在线免费 | 成人综合久久 |