November twenty second，《Tender Announcement for Lump Sum Contract for Construction of New Shenzhen-Nanning High-speed Railway Pearl River Delta Hub Airport to Provincial Boundary Section Project》Publish。The preliminary design of the project was approved on November 21，Bids will be opened on December 21.，Construction will officially start early next year.。At this point，The construction of Nanshen high-speed railway is about to start.。

Shenzhen-Nanning High-speed Railway Pearl River Delta Hub Airport to Provincial Boundary Section Project has been included《“Fourteen five”Railway Development Plan》（Development and reform foundation［2021］1948）And《Guangdong-Hong Kong-Macao Greater Bay Area Infrastructure Interconnection Plan》（Development and reform foundation（2020）No.830）。

Nanshen High-speed Railway is the No.1 infrastructure project of Guangxi's full integration into Guangdong, Hong Kong and Macao.，It's also Guangdong、Guangxi Jiji Guiguang、The third high-speed rail corridor after Nanguang and the first high-speed rail project with a design speed of 350 kilometers per hour。

This project connects Nanning to Yulin to Cenxi in Guangxi under construction.（Boundary between Guangxi and Guangdong provinces）Section and Zhuhai-Zhaoqing High-speed Railway Pearl River Delta Hub Airport in Guangdong to Jiangmen（Zhuhai）Section and Shenzhen-Jiangmen Railway，Together, they form a high-speed railway corridor from Nanning to Shenzhen.。The whole line is expected to open to traffic in 2027.。

Liujing Yujiang Bridge in Nanyu Section of Nanshen High-speed Railway under construction

The line is about 660 kilometers long.，Among them, the new section from Nanning to Jiangmen is about 544 kilometers.，The Shenzhen-Jiangmen Railway under construction is about 116 kilometers.，The long-term planning includes Zhuhai（Hok Chau）To Shenzhen（Celie）New high-speed rail corridor。

Nanning to Guangzhou at present、The fastest running time of Shenzhen high-speed railway is about 2.7 hours、3.5 hours，After the completion of the Nanshen High-speed Railway, it will only take about 2 hours and 2 hours at the fastest..5 hours。

《Tender notice》The main contents are as follows：

1、Construction scale

The new Shenzhen-Nanning high-speed railway line from the Pearl River Delta hub airport to the provincial boundary is drawn from the Pearl River Delta hub airport station.，Gaoming via Foshan，Zhaoqing Gaoyao，Yunfu Yuncheng、Yun An、Yu Nan、Luoding，End at the boundary between Guangdong and Guangxi。

Total line length 142.372 kilometers，There are 3 stations.，They are the Pearl River Delta Hub Airport Station.（Not included）、Yunfu station、Luoding North Station。

Total estimated investment of the project 283.3.6 billion yuan，The total construction period is 4 years.。

Main technical standards：Railway grade：High-speed railway；Design speed：350 kilometers/Hour。

2、Scope of bidding

（1）New Shenzhen-Nanning High-speed Railway Pearl River Delta Hub Airport to Provincial Boundary SectionDK307+156（Design starting point）～DK449+618.676（Design end point，Boundary mileage with Zhuhai-Zhaoqing High-speed Railway）In front of the station within the scope、All contents of construction drawings of post-station works（Excluding the airport tunnel earthwork entrusted to Guangzhan、Slope protection and tunnel roof backfilling），Excluding Cenxi East Work Area Reinforcement Project。

（2）Rozen RailwayCK4+258.76～CK10+511.64（Corresponding to Shennan High-speed RailwayDK331+215.53～DK337+468.795）Scope Simultaneous Implementation Project。

3、Division of bid sections

The whole line is divided into 4 bid sections.：

（1）SNSG-Bid 1

①DK307+156（Yunkai Dashan Tunnel）～DK368+640.02（Abutment at airport end of Shaziling Middle Bridge）、DK441+089.724（Abutment at airport end of Magang Bridge）～DK449+544.527（Airport tunnel）Works in front of the station（Excluding the airport tunnel earthwork entrusted to Guangzhan 、Slope protection and tunnel roof backfilling ），In addition, it includes Hedong Village SpanG324 National Highway Bridge（DK418+219.113）To Magang Bridge（DK 441+089.724 ）Prefabrication and erection of range box girder（Including embedded parts for beam fabrication），The whole line“Four electricity”Engineering、Track laying、Turnout laying and sleeper prefabrication，Excluding Cenxi East Work Area Reinforcement Project。

②Rozen RailwayCK4+258.76～CK10+511.64（Corresponding to Shennan High-speed RailwayDK331+215.53～DK337+468.795）Scope Simultaneous Implementation Project。

（2）SNSG-Mark 2

DK368+640.02（Entrance of Yuncheng Tunnel）～DK398+648.72（Exit of Yunshi Tunnel）Works in front of the station。

（3）SNSG-Mark 3

DK398+648.72（Exit of Yunshi Tunnel）～DK425+049.744（Entrance of Niujiaojing Tunnel）Works in front of the station，Station building of the whole line、Production and living houses and ancillary works in the station，It also includes Zhudong Village SpanG324 National Highway Bridge（DK383+445.3）To Xincun Bridge（DK395+573.99）Prefabrication and erection of range box girder（Including embedded parts for beam fabrication）。

（4）SNSG-Mark 4

DK425+049.744（Entrance of Niujiaojing Tunnel）～DK441+089.724（Abutment at airport end of Magang Bridge）Works in front of the station。

Introduction of Nanshen High-speed Railway to Shenzhen、Schematic Diagram of Zhuhai Area Scheme