**Tunnel Construction Escape Passage** -- **Henan Deyuan Company** UHMWPE Pipe - Committed to quality, offering competitive prices, and welcome to place orders! **Tunnel Construction Escape Passage** Connection Methods and Installation: 1. The pipes used for the **tunnel construction escape passage** are made of ultra-high molecular weight polyethylene (UHMWPE) pipes, with a length of 3m and a wall thickness of 30mm. The UHMWPE tunnel escape pipes can be connected using ring clamps, steel lap locking connectors, or U-shaped chain buckles, with each end fixed at 10mm. To ensure the pipes can withstand the pressure from potential collapses, the material must have sufficient pressure-bearing capacity and the joints must be secure. They can only be used in tunnels after specific laboratory testing. 2. The construction site should prepare sufficient pipes and connection materials based on the surrounding rock conditions of the tunnel and the excavation method. In addition to whole pipes, short pipes of 1m, 2m, and 3m, as well as transition joints, should also be prepared. 3. The UHMWPE tunnel escape pipes are processed for use, with processing done according to the material and actual site conditions. The connection is simple, secure, and tight, and temporary fixing measures should be implemented on the ground. During construction, temporary covers can be added to the pipe openings, which are easy to open and close. 4. The **tunnel construction escape passage** uses 800mm socket-type UHMWPE pipes, starting from the already constructed secondary lining end, with a distance from the secondary lining end not exceeding 5m. The pipes should be laid to an appropriate position within 20m from the excavation face, along one side of the initial support towards the face. Working ropes should be reserved inside the pipe for ease of escape, rescue, communication, and the transmission of various items. Longitudinal connections of the socket-type UHMWPE pipes can use chains or other measures to prevent the pipes from being dislodged during collapses. 5. During the movement and positioning of the secondary lining trolley, the tunnel escape pipes should be dismantled section by section temporarily; removing them all at once is strictly prohibited to ensure the escape pipes remain functional at all times. 6. When the tunnel escape pipes pass through the excavation steps, they should be arranged to follow the steps, installing 30° steel transition elbows accordingly. The height and length of the pipes should not interfere with construction and should facilitate the opening of escape windows. 7. The installed UHMWPE tunnel escape pipes should be flat, dry, and smooth, and must not be used for purposes other than emergency escape. 8. The length of the **tunnel construction escape passage** is 100m. Henan Deyuan Rubber and Plastic Products Co., Ltd. is a high-tech enterprise integrating R&D, production, and sales, specializing in the production of ultra-high molecular weight polyethylene pipes, **tunnel construction escape passages**, steel-reinforced polyethylene (HDPE) spiral corrugated pipes, HDPE pipes, internally and externally coated composite steel pipes, 3PE anti-corrosion pipes, lined pipes (steel-lined PO pipes, steel-lined PE pipes, steel-lined fluorine pipes), rubber-lined pipes, and a series of multi-specification pipe fittings and materials. The products are mainly used in industries such as chemical, electric power, mining, metallurgy, pharmaceuticals, water conservancy, municipal, construction, environmental protection, dredging, and coal washing. Interested customers are welcome to visit our company for inspection, and we look forward to your visit! Address: **Konggang Industrial Gathering Area, Chuangye Avenue, Luoyang City**