1. Project Overview
Nanweiliu Road (between Nanjingshiyi Road and Nanjingshisi Road), located in the south of the government of Shannan New Area, Huainan City, is 1.404km long in total, and has built into a bi-directional 4-lane sub-arterial road, 36m in width. Under-crossing Tunnel on Nanweiliu Road, 1,135m in total length and located between Nanjingshiyi Road and NanjingshisiRoad, runs through the Central Park Landscape Lake in Shannan New Area.
2. Technical Features and Innovations
1. As an under-lake tunnel, it is equipped with complete and convenient drainage maintenance system and water supply inspection system through cleverly arranged cross-sections;
2. The deep foundation pit excavation of weak expansive clay ensures construction safety through complete designs of tunneling, drainage and a large platform;
3. Concrete placing for concealed buried section by steel formwork trolley ensures the self waterproofing quality of concrete, and complete waterproofing system and the seepage elimination with stainless water disposal pan can make sure the tunnel is not damp during the operation;
4. Rainwater and waste water are treated separately through two separate rainwater pumping stations and a wastewater pumping station constructed together with the tunnel, which realizes an intelligent drainage and no ponding in underpass section even in rainstorms;
5. Flexible pavement and tunnel plate decoration of good guidance and reflection effect ensure the comfort, together with the molding and sub-functional lighting design;
6. LED lights are used for lighting to create an energy-saving and environmentally friendly urban space.
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