Extension of the Liuzhou to Nanning Highway

Author:Karina Lumholt

The Guangxi Zhuang Autonomous Region is situated in South Central China and shares borders with Vietnam. Guangxi has a long history of trading with South East Asia, and the ASEAN countries are Guangxi’s major trading partners. Guangxi is promoted by China’s Central Government as a door opener to the ASEAN markets and connects with Southeast Asia through high-speed roads, railways, ports and airports, and highways have been built all over Guangxi to promote the region’s economic development.

Nanning and Liuzhou are two major cities in Guangxi. Nanning is an important transport and logistic hub for China’s south-western markets with an inland river port, hub for road and railway networks and an airport that connects to regional and international destinations. The193 kilometre highway在两个主要城市之间，将在2016年至2018年间重建并从四个车道延伸到八条车道。这将bring the travel time between the two cities down to 2.5 hours.

First time the Leica PaveSmart 3D is used in China

The two-way eight-lane highway between Liuzhou and Nanning.

广西路和桥梁工程集团，道路，桥梁，隧道，子级和市政工程建筑服务的提供商，已使用了两个Leica PaveSmart 3D solutionsand fouriCON robot 61在这个项目。这是第一次that the company uses 3D paving solutions, and it has completely changed the construction process.

“There is no need for manual setting and controlling of stringlines. Using the Leica Robot 61 total station to guide the precise digital construction work ensures that the paving construction is performed strictly according to the design and guarantees the smoothness and flatness of the spread,”Wei Jingguang, product manager at Guangxi Road and Bridge Engineering Group.

The two first Leica PaveSmart 3D solutions sold to the Chinese market.

The specifications in Guangxi Road and Bridge Engineering Group’s contract were awidth of 42 metres, 4 per cent cement stabilised macadam base with a thickness of 20 centimetres and 5 per cent cement stabilised macadam base with a thickness of 38 cm. The design data are imported into the 3D solution, and the construction process system is automatically controlled,without the need to measure the sample and the reference line. This reduces the influence of human factors on the construction quality and ensureseasier logistics on the job site.

“Working without excessive construction personnel and construction auxiliary personnel, greatly reduce the labour intensity. A clean and orderly construction site ensures the safety of both personnel and mechanical equipment,”says Wei.

Working 24/7

The construction work is implemented without traffic interruptions, and is being performed 24 hours a day.

"Compared to the traditional construction process, the use of Leica PaveSmart 3D solution is a real game-changer in the paving industry in China. We estimate that we have saved considerable project time and ensured consistent paving quality this by introducing the 3D technology to the Chinese market,”总结说，Leica Geosystems机器控制业务部中国地区销售经理Xing Lu。