Tunnel800Escape Pipe Length-Tunnel800Escape Pipe Category

On March 2, 2017, the Chinese government placed greater emphasis on economic structural adjustments, and the country introduced three major regional economic development policies, further deepening the "Belt and Road" initiative. At the same time, as spring arrives, various construction projects across the country gradually commence. Before starting work at each construction site, the primary task is to conduct safety inspections, especially during the tunneling process, where situations are likely to arise. Escape pipes and ventilation pipes have become necessary prerequisites for tunnel excavation. When choosing escape pipes, the primary consideration is the safety coefficient of the pipes. This requires escape pipes to be impact-resistant, collision-resistant, high-pressure resistant, and have good flexibility. Additionally, the diameter of the escape pipes should be large enough to accommodate human crawling.

In response to the frequent collapses in highway tunnel construction, Luoyang Guorun New Materials has adopted new materials for the first time (the new type of tunnel escape pipe is a linear structure thermoplastic engineering plastic formed by the polymerization of ethylene and butadiene monomers under the action of a catalyst, with an average molecular weight of over 2 million) for designing emergency rescue passages for highway tunnel construction.

Consultation Hotline--Manager Sun--13698887149--Luoyang Guorun New MaterialsTechnology Co., Ltd.

Tunnel Escape System Introduction:

A pipe escape system for tunnel construction accidents is set up at a certain distance from the excavation face of the construction tunnel, with a safety scaffold connected to one end of the escape pipe; typically, this distance is not more than 26 meters, and when using the step method for construction, it should not exceed 21 meters. The other end of the escape pipe is close to the secondary lining section of the construction tunnel.

Characteristics of the new tunnel escape pipe

1. The tunnel safety escape passage made from Luoyang Guorun New Materials has low material costs, saving procurement costs for engineering projects.

2. The tunnel safety escape passage has strong corrosion resistance, and the construction can be completed quickly, with a service life of up to 30-50 years.

3. The tunnel safety escape passage also exhibits good corrosion and impact resistance under low-temperature conditions.

4. The tunnel safety escape passage is made from our company's unique formulation, ensuring high corrosion reliability.

5. The design of the tunnel safety escape passage is reasonable and easy to install. The passage is equipped with connecting components and lifting rings at the ends, making installation and lifting convenient.

6. The bottom layer of the tunnel safety escape passage is in contact with an epoxy powder anti-corrosion coating, and the outer layer is coated with resin anti-rust paint. The inner wall of the tunnel safety escape passage is smooth, allowing for quick escape during an emergency and minimizing secondary abrasions.

7. Our company's tunnel safety escape passage is currently recognized for its effective performance and corrosion-resistant coating, leading to its application in various engineering projects.

Requirements for the setting of tunnel escape pipes:

1. The pipes used for the tunnel escape passage should be new type tunnel escape pipes with a diameter of φ800mm, with a pipe segment length of 3m and a wall thickness of 30mm. The segments can be connected using metallic banded clamps with a diameter greater than that of the escape pipe, 22mm wide, temporarily fixed with bolts. To ensure that the pipe can withstand the pressure of collapse debris, the material used must ensure pressure-bearing capacity and the firmness of the joints, and they must be tested in a laboratory before being used in the tunnel.

2. The construction site should prepare sufficient pipes and connecting materials based on the surrounding rock conditions and excavation methods, and in addition to complete pipe segments, should also prepare short segments of 1m, 2m, and 3m, as well as transition joints.

3. Tunnel escape pipes should be processed based on the material and actual site conditions, with simple, firm, and reliable connections, and temporary fixing measures should be taken on the ground. During construction, a temporary cover can be added to the pipe opening, which should be easy to open and close.

4. The tunnel escape pipe should use φ800mm socket type new tunnel escape pipes, with the starting point set at the end of the constructed secondary lining, and the distance from the secondary lining end should not exceed 5 meters. It should be arranged at an appropriate position within 20m from the excavation face, laid along one side of the initial support towards the excavation face, with a working rope reserved inside the pipe for easy escape, rescue, communication, and transportation of various items. The longitudinal connection of the socket type new tunnel escape pipe can use chains or other measures to prevent it from being displaced during a collapse.

5. During the movement of the secondary lining trolley, the tunnel escape pipes should be dismantled section by section during temporary removal; it is strictly prohibited to remove multiple sections at once to ensure the functionality of the tunnel escape pipes at all times.

6. When the tunnel escape pipe passes through the excavation steps, it should be arranged according to the step sequence, and the installation of 135° transition joints should follow the sequence. The height and length of the pipe should not interfere with construction and should facilitate the opening of the escape window.

7. The installed tunnel escape pipes should be flat, dry, and smooth, and should not be used for purposes other than emergency escape.

8. The laying length of the tunnel escape pipes should be 100m.

Participating units in the tunnel escape pipe research:

Yunnan Second Highway Bridge Engineering Co., Ltd. Φ800Tunnel Escape Pipe80meters

China Water Resources and Hydropower Eleventh Bureau Φ800Tunnel Escape Pipe75meters

China Railway Tunnel Bureau Ningbo Ninghai Expressway Φ800Tunnel Escape Pipe400meters

China Railway Fourteenth Bureau Yulin Expressway Φ800Tunnel Escape Pipe300meters

China Railway Sixth Bureau Group Shijiazhuang Railway Construction Co., Ltd. Φ800Tunnel Escape Pipe250meters

China Communications Second Engineering Bureau Fourth Company Φ800Tunnel Escape Pipe200meters

Yunnan Xiangli Expressway Second Project Department Φ800Tunnel Escape Pipe300meters

China Communications Second Navigation Engineering Bureau Co., Ltd. Φ800Tunnel Escape Pipe70meters

China Communications Second Public Bureau Liupanshui Weining Expressway Φ800Tunnel Escape Pipe500meters

Yunnan Second Highway Bridge Co., Ltd. Φ800Tunnel Escape Pipe150meters

Welcome to Luoyang Guorun New Materials Technology Co., Ltd. for factory visits!

Factory Address: China.Luoyang Airport Industrial Cluster Zone.Zhejiang Business Industrial Park