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The construction section of the unique shield structure of the central Yunnan water diversion project

Longquan inverse rainbow suction smoothly

On June 21, accompanied by the sword of the "Longxiang" shield machine slowly rotating and breaking the soil, the Central Yunnan Water Drivery Project in Central China Railway Five Bureau successfully opened up the rainbow, marking the national key water conservancy project in Yunnan. Significant progress has been made in the construction of water diversion projects.

Longquan inverted siphon is the only project in the urban area to use the shield method construction in the urban area. This is also the first time in the construction of the water conservancy project in Yunnan Province.

The water diversion project in Central Yunnan is the iconic project in the 172 water conservancy projects determined by the State Council. It is also the largest investment scale and the most difficult construction project in Southwest China. After the completion of the project, the dry flow of the Jinsha River with relatively abundant water volume to the water to the central Yunnan area, effectively alleviate the contradiction between urban production and living water in central Yunnan, improves the ecological and water environment of the river and plateau lakes in the area. sustainable development.

Zhaotong Dayong High Speed ​​Shuntian Tunnel runs through the entire line

On June 20, after more than 800 fighting and hard construction, Zhaotong Da Yong (Daguan County to Yongshan County) highway A3 standard section of the A3 bid section of the A3 bid section of the Special Vasian Tunnel of the Shuntian Tunnel on the left is smoothly connected. At this point, the Dayong Expressway Shuntian Tunnel, which was established by the A3 bidding section of the China Railway 19th Bureau Group Co., Ltd. to achieve dual -hole penetration, laying a solid foundation for the establishment of the Daong Expressway A3 and A4 bidding sections at the end of the year.

The 3nd standard section of the Dawong Expressway is located in Yongshan County, involving the two towns of Lianfeng and Huanghua. The left line of the Shuntian Tunnel is 3834 meters long and the right line is 3830 meters. It is a separate tunnel on the left and right lines. It is designed according to two -way four -lane lane. The design speed is 80 kilometers per hour. The maximum buried depth of the tunnel is 1125 meters, and the import and export of the import and export is used.

The Daong Expressway G85 G85 Yinkun Expressway and Xilian G4216 Chengdu to Lijiang Expressway are an important part of the Yunnan Provincial Expressway Network. Yuan. After completion, it will become a useful supplement to the national highway network, effectively improve the traffic conditions of regional traffic along the route, promote regional tourism and mineral resources development, and play an important role in the integration of the “Belt and Road” to integrate into the Chengdu -Chongqing Economic Circle.

The Shuangbai Tunnel of the Yuchu Expressway realizes dual -amplitude

After more than four years of hardships, a few days ago, the second long tunnel of the Yuchu high -speed speed was also the last large long tunnel Shuangbai tunnel to achieve dual -across the board, and the "acceleration key" was pressed for the construction of the Yuchu highway.

The Shuangbai Tunnel, which was built by the Sixth Bureau of China Railway, is located at the foot of Laohei Mountain, Pudian Town, Shuangbai County. The right length is 3575 meters. The tunnel crosses the ridge, the terrain is undulating, and the geological conditions in the tunnel hole are extremely complicated. The main layers of mud rocks and sandstones are the main layers. Many faults and crushing band bad geology, the construction difficulty and the risk of safety are extremely high.

The Yuchu Expressway is the Yuxi to Chuxiong section from the G8012 Highway Maitreya to the Chuxiong highway. It is an important part of the Guangkun Expression Link to the Chuxiong highway. Later, it will open up the rapid passage of Yuxi to Chuxiong to realize the interconnection of Yuxi and Chuxiong's surrounding cities and counties, which plays an important role in promoting the economic construction in central Yunnan.

The main line of the Duxiang High Speed ​​A8 standard is fully connected

Recently, as the last piece of prefabricated T beams on the left side of the Bayang Bridge set up safely and stable in the established position, the 10 -seater Bridge of the main line of the main line of the main line of the main line of 1281 prefabricated T beams was completed, marking the comprehensive main line of the Duxiang high -speed A8 standard to achieve the main line of the main line. Passing, the main project enters the countdown countdown.

The total length of the A8 labeling line of Duxiang High Speed ​​is 7.198 kilometers. There are 2 in the service area, with a total of 1389 prefabricated T beams, including 1281 main lines.

Wantang Bridge 0#Qiaotai is near the entrance of Heishi No. 2 tunnel, and the construction of the last span of T beam frame is difficult and the safety requirements are high. The comprehensive connection of the main line of the A8 standard project not only won valuable time for the subsequent bridge surface and other processes construction, but also provided a strong guarantee for the comprehensive opening of the traffic at the Duxiang High Speed.

Kunming Chai Shitan Reservoir Irrigation District Project

Xiganqu No. 8 Tunnel Pore

A few days ago, the Kunming Chai Shutan Reservoir Irrigation Zone project undertaken by Yunnan Jianchu Group First Water Conservancy and Hydropower Company was connected. At this point, all 35 tunnels in the irrigation district projects have all been connected, laying a solid foundation for achieving the target tasks this year.

The Chai Shitan Reservoir irrigation zone project is one of the 172 major water conservancy construction projects in the country's "Thirteenth Five -Year Plan" period determined by the State Council. It is the key project of "Five Networks" construction in Yunnan Province and the largest farmland water conservancy construction project in Kunming. Among them, the total length of the No. 8 tunnel of Xiganqu is 4458.55 meters, the tunnel design flow of 2.38 cubic meters per second, and the cross -arched straight wall type with a horizontal section of 2.5 meters × 2.5 meters.

Ruimeng Expressway

Never fall to the right of the tunnel at the right range

Recently, the Ruimeng Expressway, undertaken by Yunling Group Yunling Group Yunnan Group Yunling Group, never settled in the right side of the tunnel No. 1. The tunnel of the No. 1 is never a small -distance separation short tunnel with a length of 343 meters in the left and 351 meters on the right. Since the start of construction, Yunling Construction Co., Ltd. has ensured that each process meets the design requirements, and the entire tunnel construction has achieved the expected goals of "zero defects" and "zero accidents" for safety. After 352 days of fighting, under the work and sincere cooperation of all participants, they will never go to the right side of the tunnel from the right.

Qinglongzui to Mizutan New District Qingshui Expressway is about to be opened to traffic

A few days ago, Zhaotong to Leshan Expressway Qinglongzui to Mizuka New Division (referred to as Qingshui Expressway) civilian bids and passed work and electromechanical standards with testing conditions, which also marked that the project is about to be officially opened to traffic.

Zhaotong to Leshan Expressway Qinglong Tsui to a new section of Mizuka. The starting point is located in Qinglongzui, Yanjin County. km. At present, the project has entered the preparatory stage of the traffic. The projects of the project, electromechanical, and traffic security are installed and commissioned to install the final bridge drainage pipes, tunnel electromechanical, etc.

Qingshui Expressway is a provincial highway project planned and constructed during the "Thirteenth Five -Year Plan" period of Yunnan Province. One of the liaison lines in the highway network with two horizontal four verticals and three verticals and three verticals.

Kun Ruo highway civil construction 4 standard

Successfully complete the task of all T beam standing

Recently, the Civil Construction 4 of the Kun Highway 4 in the China Railway Fifth Bureau successfully completed the construction tasks of all prefabricated T beam frame facilities, becoming the first bidding section of the construction task of the construction task of the entire T -beam frame.

China Railway Fifth Bureau undertakes the 4 tabs of the Kunruo Highway, 6.13 kilometers in length, 5 main bridges. 713.

It is understood that after the line is repaired, the route from Kunming to Dongcun, Dongcun to Ruomian, and Ruomian to Xialishan is about 110 kilometers, and the distance can be controlled at about 80 minutes. It is expected to save about 40 minutes than the original 250 -kilometer -150 kilometer -150 kilometer -150 kilometer -150 kilometer. It is of great significance to accelerate the people and the integration of Kunming's one -hour economic circle and effectively open the northern link between the northern part of the northern Kunming and central Yunnan urban circle to improve the function of the northern region of Kunming.

Part of the article/Photography: Hu Xiaorong Xie Yongbin Jiang Liping He Zengwang Hu Rundong Xie Yi Dynasty Han Shijiang

Data: Chu Xiong State Committee Propaganda Department of the Propaganda Department of the Zhaotong Municipal Committee of Yunnan Province

Information officer: Zhang Zhiping Baojian Yang Fen

Edit: Li Nan

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