At present, Zhonghua Road Interchange, Zhenlian Road interchange and national highway 201 interchange have been mobilized for construction
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Only the top of the pipe section under the water surface could be vaguely seen
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Different from the first two batches, the third batch of pipe joints are prefabricated for curved sections, which will have higher requirements for technology
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Guangming Road Tunnel starts from Dongfang Road Interchange in the South and Zhonghua Road Interchange in the north, and a separate tunnel of East and West lines is designed
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It is expected that the East dock will be watered out in late September 2021
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The prefabrication of the second batch of pipe joints in the East dock chamber is also coming to an end
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The third batch of pipe joints in Xiwu is planned to be formally prefabricated in early August
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From south to north, it passes through Barracuda Bay No
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After completing the tugboat formation, floating, mooring, installation and other processes, the docking with E5 pipe joint was successfully completed at 20:26 on the same day, taking nearly 14.5 hours
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Shen Changzhou: after the second batch of immersed pipes in Dongwu and Xiwu are undocked, the prefabrication of the third batch of curved section pipe joints will be carried out in an all-round way
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The prefabrication of the immersed pipes of the entire Dalian Bay Subsea Tunnel will be completed
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Liu Zhouli, deputy manager of Guangming Road Project Department of the third company of CCCC first navigation bureau, introduced that Guangming Road extension project is composed of Guangming Road Tunnel, Dongfang Road Interchange, Zhonghua Road Interchange, Zhenlian Road interchange and national highway 201 interchange, which is divided into three bid sections
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In the East and West lines of the North portal, large equipment such as cantilever tunnel excavator and large oil hammer are constructed at the same time, advancing about 1.5m every day
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The E6 pipe joint installed this time is a standard pipe joint, 180 meters long, 33.4 meters wide, 9.7 meters high and weighs about 60000 tons
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Time: 11:00 on July 16 location: the second batch of immersed pipes in the West dock of the north bank immersed pipe prefabrication yard began to irrigate
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Time: 20:00 on July 16 location: E6 pipe joint was successfully installed at the docking site of offshore immersed pipe, and the total length exceeded the kilometer mark
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On the morning of July 16, at the construction site of beidongkou, the roar of large machinery and equipment came one after another
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At this time, the West dock room was already vast, and the second batch of three section immersed pipes were “submerged” by the sea
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The floating installation was officially started at 6:00 on the 16th
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At 20:26 on July 16, after 14.5 hours of work, E6 pipe joint, the first “climbing pipe joint” of Dalian Bay Subsea Tunnel construction project undertaken by CCCC first navigation bureau, was successfully installed
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The total length of the tunnel is 1498m
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Dongfang Road Interchange Cross Ganjingzi railway station and connect with golden triangle, old Ganjingzi District, Paoya residential area and ecological technology city; Enter the underground tunnel with separated structure to the north and pass through Dalian Petrochemical organic synthesis plant; Zhonghua Road Interchange Contact South China Business District, ecological technology city and spring area; Zhenlian Road Interchange Contact Quanshui residential area, development zone, Dayaowan Expressway and Heda expressway; National Highway 201 interchange Connecting Jinzhou City can also be connected with the expressway network through Houyan interchange
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In the long term, it can be extended to the north to connect National Highway 202
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It is the first “Climbing” pipe joint, and the water depth at the sinking position is about 30 meters
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Ma Zonghao, deputy general manager of Dalian Bay Subsea Tunnel Co., Ltd., said that after the completion of immersed pipe installation, outfitting removal, locking, covering and backfilling will continue
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Shen Changzhou, chief engineer of Dalian Bay project Department of the second company of China Communications fourth Navigation Bureau, introduced that after the prefabrication of the second batch of three section immersed pipes in Xiwu is completed, it is expected to be out of the dock on July 26
As of July 15, 2021, the footage of the East and West lines of the North portal of the tunnel are 247m and 245m respectively, accounting for 27% and 26.9% of the total
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The irrigation operation is under way in the West dock room of the north bank immersed pipe prefabrication yard
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Liu Zhouli: according to the project plan, Guangming Road Tunnel is expected to be completed by the end of 2022 and open to traffic by the end of June 2023
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Foundation pit excavation is under way at the South portal of the tunnel, and 56900 cubic meters have been completed, accounting for 53% of the total
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So far, 1035 meters of the subsea section of the Dalian Bay Subsea Tunnel has been completed, more than one third of the total length of the immersed section
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On July 16, good news came from several front construction sites: √ the footage of the East and West lines of the North portal of Guangming Road Tunnel exceeded one fifth of the total! √ the prefabrication of three sections of immersed pipes in the West dock room is completed and water filling is started! √ E6 pipe joint was successfully installed, and the total length exceeded the kilometer mark! What are these three scenes like now? Come on! Follow “big cloth” to have a look! Time: 9:00, July 16 location: Guangming Road Tunnel North portal Guangming Road Tunnel is expected to run through Guangming Road Tunnel by the end of 2022
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The smooth docking of E6 pipe joints marks the official start of the construction task of Dalian Bay Subsea Tunnel in the second half of the year and enters the “sprint” stage of the installation of 6 immersed pipes in the second half of the year
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Since the installation of the first section of immersed pipe on December 9, 2020, relying on professional construction team and ship machinery equipment, Dalian Bay Subsea Tunnel has overcome many difficulties and created a number of records
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Overview of Guangming Road Extension Project Guangming Road extension project is connected to the undersea tunnel in the south, with a total length of 6.95 km, a two-way six lane design, a main line design speed of 60 km per hour, and a main structure design service life of 100 years
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The interchange location of national highway 201 also reserves an interface to continue to the north
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According to the plan, the last three immersed pipes in the West dock are expected to be undocked in late February next year, and the three immersed pipes in the East dock are expected to be undocked in mid May next year
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This wechat is edited and produced by “Dalian release”
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In the second half of this year, all processes of Dalian Bay Subsea Tunnel entered the key stage of sprinting the annual task
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▲ renderings of Dongfang Road Interchange ▲ renderings of Zhonghua Road Interchange ▲ renderings of Zhenlian Road Interchange ▲ renderings of national highway 201 interchange
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The North portal of Guangming Road Tunnel is located at the intersection of Zhonghua Road and Dayan Road, Ganjingzi District
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Ma Zonghao: it is expected that by the end of October this year, we will complete half of the whole immersed pipe butt joint installation, and strive to complete the butt joint installation of the first 12 pipe joints by the end of this year
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20 road ramp, Dongfang Road Interchange, Zhonghua Road Interchange, Zhenlian Road interchange and national highway 201 interchange to realize the orderly connection with the main east-west trunk roads of the city
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