日韩精品久久一区二区三区_亚洲色图p_亚洲综合在线最大成人_国产中出在线观看_日韩免费_亚洲综合在线一区

USEUROPEAFRICAASIA 中文雙語Fran?ais
Lifestyle
Home / Lifestyle / News

Experts redirect water to curb post-quake tragedies

By Erik Nilsson and Huang Zhiling | China Daily | Updated: 2013-05-23 17:56

The 2008 Wenchuan earthquake rattled and crumbled the peaks that smatter Sichuan province's Longmen fault line, creating a recipe for later disasters. Just add water, and you get landslides.

So, the Wenjia Valley's landslip-prevention formula is to subtract the water from the loose soil and stones.

Experts constructed two dams and one diversion channel past the water source that fed six avalanches from the 2008 tremor until 2011. No landslides were recorded there before the quake.

The temblor jostled loose nearly 80 million cubic meters of Wenjia's mountains. Sichuan Provincial Geo-engineering Corp chief engineer Yang Quanzhong says about 30 million cubic meters are stable, while 50 million teetering cubic meters fan out over about a kilometer.

"This concentrated volume makes it a globally unprecedented problem," Yang says.

The wobbly earth splashes from 1,300 meters above sea level to the valley's trough.

Wenjia's mouth is Qingping township's only flat expanse. It's where a 2010 landslide raked 6 million cubic meters over the downtown that's home to more than 4,000 people - more than 90 percent of its population.

There haven't been any landslides since in Qingping.

"The diversion channel redirects water from the loose rocks and earth to prevent mud, while the dams block upriver tides of sludge and stones," says Sichuan Provincial Geology and Mineral Resource Exploration and Development Bureau deputy chief engineer Li Qianyin. Li worked with Yang to develop solutions.

Another consequence of the duo's labor is that metal-rod grids cage in many of the crushed slopes.

The 200 million yuan ($32 million) project began after roads, bridges, hospitals and urban and rural houses were rebuilt in Qingping.

Before the water diversion, people dreaded landslides every downpour.

Sichuan's governor Wei Hong explains: "Post-quake reconstruction achievements must be protected."

Experts redirect water to curb post-quake tragedies

Experts redirect water to curb post-quake tragedies


Time heals but does not erase memories

Wenchuan Earthquake Memorial Museum officially opens to public 

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: 草久在线观看视频 | 久久人人爽人人爽 | 色125综合网| 男进女内免费视频无遮挡 | 91网站入口| 亚洲国产午夜精品乱码 | 一区二区三区四区免费看 | 日韩av不卡在线 | a免费国产一级特黄aa大 | 免费播放欧美一级特黄 | 欧美片网站免费 | 精品国产理论在线观看不卡 | 亚洲乱码在线卡一卡二卡新区 | 亚洲国产片高清在线观看 | 伊人国产精品 | 国产日韩欧美 | 国产日韩一区二区三区在线观看 | www.av88| 免费一级毛片在线播放视频 | 久久小视频 | 国产美女自卫慰视频福利 | 成人性视频免费网站 | 国产在线精品一区 | 黄色毛片免费看 | 国产精品久久久久久久免费大片 | 精品在线一区二区三区 | 成人午夜久久 | 一区二区国产在线播放 | 国产亚洲蜜芽精品久久 | 成熟人妻AV无码专区A片 | 视频成人永久免费视频 | 欧美日韩精品一区 | 夜色成人性y | 多男操一女视频 | 色婷婷网 | 成人日韩视频 | 亚洲成人精品久久久 | 激情婷婷六月天 | 欧美成人做性视频在线播放 | jizz18免费视频| 亚洲网站在线观看 |