Xiangshanling Tunnel of Hang Wenwen Railway runs through the entire line

Correspondent Pan Shuyu Wu Ji Dingming

On June 9th, the two -line Xiangshanling Tunnel of the Hang Wen Railway of China Railway 11th Bureau successfully opened up. This is the longest tunnel that runs in Yiwu City, Zhejiang Province.

The Xiangshanling Tunnel is located in Yiwu City, Zhejiang Province, with a total length of 3310 meters. It is a dual -line tunnel. The main line design is 250 kilometers per hour, and the maximum burial depth is 170 meters. Tunnel construction faces construction geological disaster risks such as groundwater development, large rocky changes, and tunnel import and export slopes. It is a key high -risk project in the standard section.

The section of the Xiangshanling Tunnel on the left side of the Shanghai -Kunming High -speed Railway Mashan Tunnel was worn, with a minimum net distance of 12 meters. The construction interference was large and the safety risk was high. In order to ensure the safety and operation safety of the existing tunnel, the project uses a micro -vibration blasting technology on the tunnel excavation, and according to the requirements of the China Railway Shanghai Bureau Group on the blasting vibration speed of no more than 1 cm per second, blasting the blasting before the blasting blasting Tests, constantly adjusted dynamically until the optimal blasting design parameters are obtained; during the construction process, the project uses an L20-N-type network vibration meter to perform online monitoring of the existing Massama Tunnel for 24 hours. The amount of drugs has been performed accurately, so that the blasting vibration speed of the Shanghai -Kunming high -speed rail Mountain Tunnel has not exceeded the control indicators during the entire blasting construction process, effectively ensuring the safety of existing cable driving.

The tunnel penetrates the scene

During the construction, the project adopts wet spray robotics, hydraulic Yangcong trestle bridge, semi -automatic waterproof board pavement hanging car, two -line digital trolley and small workmanship. At the same time, the project department strictly implements the safety production responsibility system, conducts standardized safety and quality management with high starting points and high standards, and conducts construction in accordance with the technical specifications of tunnel engineering construction, and strengthens initial support and other measures to ensure zero production safety accidents.

The Hang Wen Railway is the first domestic "dual demonstration" private holding high -speed rail project with the pilot reform pilot of the State Council's mixed ownership reform and the National Development and Reform Commission's Social Capital Investment Demonstration. Iconic engineering. As a supporting project in Zhejiang Province to build a "1 hour traffic circle", after the completion of the Hangzhou -Wenwen Railway, it will effectively improve the national high -speed railway transportation network, enhance the regional trunk high -speed railway network, and closely connect the Yangtze River Delta region, Hangzhou, Jinyi, Wenzhou The three major metropolitan areas are of great significance to meet the transportation of transportation along the route, accelerate the development of tourism resources, and promote social and economic development.

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