80,000㎡ Daguan Expressway (Guangdong Section) S31 Section Mingzhu Tunnel Used Haobang HDPE Waterproof Membrane

Project Introduction

The S31 section of the Lianping (Jiangxi Guangdong border) to Conghua Highway Project is located in the outskirts of Conghua City, Guangdong Province. The route starts from K168+000 and ends at K180+921.588, with a total length of 12.926 kilometers. The Mingzhu Tunnel is designed for full open cut construction, with a total length of 1220 meters and an open U-shaped groove at the entrance and exit, DK169+980+DK170+680 section is a micro arch buried frame structure.

Main materials

HDPE Waterproofing Membrane

Waterproofing of underground tunnels

Traditional mining tunnels are mainly made of plastic sheets (EVA, PVC, ECB, etc.) for waterproof protection. Under the existing construction conditions and organizational forms in China, leakage is common, seriously affecting driving safety and structural life, and bringing a heavy burden to later maintenance.
Haobang's underground tunnel system solution, based on the concept of "integrated waterproofing", adopts a polymer self-adhesive film pre laid waterproofing membrane, which can effectively integrate with the subsequently poured concrete structure and prevent water from flowing between the two. In recent years, this roll material has also been used in tunnel projects and has attracted attention from multiple railway construction departments.