There are new progress through the high -speed railway of 4 provinces and cities!

September 23

Yiliang Tunnel of Chongqing to Kunming High -speed Railway

No. 2 oblique well is successfully completed

The longest speed of the world under construction is 350 kilometers per hour

Enter the construction stage

Chongqing to Kunming High -speed Railway (referred to as the Chongqing high -speed rail) is 699 kilometers in length, starting from Chongqing West Station, passing through Chongqing, Sichuan Province, Guizhou, and Yunnan Province. 350 kilometers.

The Yiliang Tunnel is a controlled project of the Chongqing -Kunming high -speed railway, with a total length of about 24.8 kilometers. It is currently the world's longest speed of 350 kilometers per hour under construction.

The environmental geological structure of the Yiliang Tunnel is complex, the terrain is ups and downs, and the regional environment is sensitive. In this regard, the construction staff adopts the "multi -point flowering" method, and the construction of multiple machinery and equipment at the same time ensures that the 2nd diagonal well enters the positive cave stage as scheduled as scheduled. Essence

Faced with the complex construction problems and intense construction requirements of the Yiliang Tunnel, the participating units use the tunnel to mechanize and efficiently build a set of techniques to ensure construction quality and construction safety. At the same time, the No. 2 diagonal well implemented a light -faced blasting process, and promptly publicized the dynamic publicity of new risks, and further accelerated the excavation speed.

The Chongqing -Kunming high -speed rail is an important part of the Beijing -Kunming Channel of the main channel of the "Eight Eights and Eight Heng" high -speed railway in my country. After completion, it will further strengthen the connection between the Shuangcheng Economic Circle and the urban agglomeration of the Central Yunnan area. Significantly compress the running time from Chongqing to Kunming, and promote the high -quality development of the economy and society along the route.

Let's look forward to

The world's longest speed of 350 kilometers per hour was born

Material: "People's Railway" Newspaper Co., Ltd. Sichuan and Yunnan Journalists Station (Chengdu, Kunming Bureau Group Company Rong Media Center)

Wen Tu: Hu Zhiqiang Yue Rui Wang Ping Zhou Tao Xu Zhangzhi

Edit: Han Han

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