The Fuyou Tunnel of the Hangzhou Wenwan Railway smoothly penetrates smoothly

Correspondent Li Sulu Yubo Chen Orange Xin

On June 10, after 610 days of tension construction, with the last explosive loud noise, the Fuyou Tunnel of the Hang Wen Railway, built by a company in the 22nd Bureau of China Railway.

Fuyou Tunnel is located in Fuyou Village, Yongtan Town, Yongjia County, Wenzhou City, Zhejiang Province. It is the terrain of the mountains in the east of Zhejiang. The single hole and double -line tunnel has a total length of 1979 meters.

"The exit of the tunnel is close to the provincial highway 223, and the vertical high difference between the pavement and the provincial highway is about 60 meters. According to the introduction, in order to ensure the timely entry of material materials and large -scale machinery, the project department starts from road height differences, driving slope, protection on both sides, and rainy season drainage to further optimize the construction plan and open up a "green channel".

The entrance of Fuyou Tunnel is adjacent to the National AAAA -level tourist area -Nanxi River Scenic Area, with high environmental water protection requirements. "All production and domestic sewage, we need to go through three levels of precipitation and purification, and after the testing meets the emission standards, it is allowed to be discharged into the natural water system. For the blasting stone, we clean up in time, the transportation vehicles are strictly controlled, transported to the specified designated, and transported to the specified designated to designate to specify Store in the location and covering effective measures through the canopy cloth, sprinkling dust and other effective measures to avoid the falling and dust of the stone. The plan was renovated and green, and drainage facilities were strictly implemented to ensure that flood discharge was smooth and created conditions for subsequent reinstatement. "Ji Haifeng, deputy secretary of the Party Working Committee of the Hang Wenwen Railway Project, said.

In response to the characteristics of steep and exposed lone stone, in order to ensure the safety of operators in the construction of the cave and the safety of the train during operation, the project department organizes to participate in the construction of all parties to investigate, determine the treatment plan after investigation one by one, and further further investigate, and further further investigate, and further further investigate. Strengthen the protection of the side -slope, use artificial, mechanical and static blasting methods to clean up hazardous stones or use prestressed anchor cables to strengthen it to ensure stability of naked base rock surfaces. Considering the long time of the local rainfall, the project department surveyed the precipitation situation of nearly 10 years, and set up interception and drainage measures according to the historical rainfall to prevent the rainwater from scratching the entrance and timely elimination of hidden dangers and controlling risks.

The project department also strictly controls the amount of medicine for the optical explosion process, strengthen advanced forecasting and support, and uses scientific detection methods such as geological radar, advanced horizontal drilling, and TSP to master the geological situation in real time. Construction problems such as steep, partial pressure, burial depth, and siege fissure development of the ravioli, to ensure the smooth penetration of the Fuyou Tunnel.

After the completion, the Hang Wen Railway will be closely connected to the three major cities in Hangzhou, Jinyi, and Wenzhou to form a backbone intercity rail transit line that radiates from the core area of ​​the Yangtze River Delta. The hourly traffic circle ", promoting the development of urban agglomeration in the Yangtze River Delta is of great significance.

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