Tianjin UHMWPE escape pipeline

  Why should the tunnel be closed at night? It is reported that the tunnel is closed at night, not just sweeping the floor
Different from ordinary ground roads, the tunnel section of North-South Expressway has a large number of electromechanical facilities such as power supply, lighting, ventilation, communication, fire alarm, equipment monitoring, signal lamp and video
During the closure period every day, professional patrol inspection, test maintenance and cleaning maintenance of various equipment systems are required, so that the equipment can operate normally during the operation of the tunnel
The inspection of a fire protection system often takes one hour
At the same time, professional engineers should also check the safety conditions, such as whether there is water seepage, whether the wall is cracked, whether the lighting and power supply lines are damaged, etc
In order to ensure the safety of vehicles and tunnel operators, these tunnel maintenance work can only be arranged at night
It is understood that many cities with tunnels in China adopt the method of closing at night for tunnel maintenance
During the closure period, the traffic flow of urban roads is greatly reduced, and vehicles can pass through the ground roads parallel to the tunnel Ultra high molecular weight polyethylene is used as the material of ultra-high molecular weight escape pipeline, which has reasonable product design, reflective identification and convenient application and construction
The quality has reached the national safety inspection standard, which is a necessary safety in tunnel engineering
It is strongly recommended by the tunnel project department to lay a & ldquo; foundation for the safety of tunnel engineering; Meritorious service & rdquo The diameter of the pipe is 800mm, the length of the pipe joint is 3 / 6m, and the wall thickness is 30mm
The pipe joints can be connected with hoops with a diameter greater than the diameter of the escape pipe, and each end can be connected with 10mm for fixation
In order to ensure that the pipeline bears the pressure of the collapsed body, the adopted material pipe must ensure its bearing capacity and the firmness of the connector, and can be used in the tunnel only after specific tests in the laboratory
The construction site shall prepare enough pipes and connecting materials according to the surrounding rock of the tunnel and the excavation method
In addition to the whole section of pipes, 1M, 2M and 3M short-section pipes and adapters shall be prepared at the same time The ultra-high polymer escape pipeline provides a reliable guarantee for the emergency rescue of highway tunnel construction; The pipeline ring has high stiffness, good pressure resistance and is not easy to deform
In case of collapse in tunnel construction, the pressure bearing capacity and anti environmental damage capacity are far higher than those of ordinary pipelines We constantly analyze, expand and discuss tunnel safety construction technology and communicate construction safety strategies with relevant departments
Teach and share safe construction skills with the majority of tunnel construction projects
According to the case analysis for many years, the application of escape pipeline will become a well deserved & ldquo; Tunnel safety guard & rdquo;
The use of 800 special escape pipe manufacturers for tunnel construction solves some safety problems in engineering construction
It is processed and made of ultra-high molecular weight polyethylene
The installation of escape pipe during construction helps the construction party to complete the project progress better, faster and safer
It has the advantages of simple installation, convenient disassembly, long use time, safety and environmental protection, and can be exposed to the sun for a long time, It also has good low temperature resistance
This product is suitable for tunnel excavation construction
During tunnel construction, escape passages and life-saving pipelines must be set in advance in surrounding rock sections of grade III, IV, V and above, so as to ensure the personal safety of constructors during tunnel excavation
During the excavation of tunnel face, shotcrete and anchor, support, excavation of inverted arch and concrete pouring, it is necessary to ensure that the escape passage is intact, the life-saving pipeline is set in place and moves forward with the continuous excavation of tunnel face Material and setting requirements of the manufacturer of 800 escape pipes for tunnel construction: according to the results of repeated experiments and relevant theoretical data, the size of the tunnel escape pipe is not easy to be too small, which is easy to be damaged in case of collapse, which is not conducive to transportation in construction
Combined with Hertz research results, the size of tunnel escape pipe is determined as 800mm outer diameter and 30mm wall thickness
& phi; 800*30/φ For 860 * 30 ultra-high molecular escape pipe, the length of the pipe joint can be determined according to the site conditions
3M, 6m long pipe joints with a wall thickness of 30mm can be selected
The pipe joints can be connected with metal band hoops with a diameter greater than the diameter of the escape pipe or temporarily fixed with bolts
In order to ensure that the pipeline bears the pressure of the collapsed body, the pressure bearing capacity and the firmness of the connector of the adopted material pipes must be ensured, and can be used in the tunnel only after specific tests in the laboratory
The construction site shall prepare enough pipes and connecting materials according to the surrounding rock of the tunnel and the excavation method
In addition to the whole section of pipes, 1M, 2M and 3M short-section pipes and adapters shall be prepared at the same time
Advantages of manufacturers of 800 escape pipes for tunnel construction (1) extremely high wear resistance, ultra-high molecular weight of more than 2
5 million, small wear index and wear resistance 6
6 times higher than that of general alloy steel
The service life of the pipeline is greatly improved
(2) High impact resistance
This product meets the standard of GB1843
In the existing engineering plastics, the impact toughness value of this product is very high
(3) Corrosion resistance this product can resist the erosion of strong chemicals, (4) good self-lubricating, good self-lubricating
Low friction coefficient
No adhesion and scaling on the surface
(5) Unique low temperature resistance this product has excellent low temperature resistance and can work at - 269 ℃ to 80 ℃ for a long time
(6) The installation is simple, and the specific gravity is only one eighth of the weight of the steel pipe, which is convenient for disassembly and handling Guorun new material is a manufacturer specializing in the production of ultra-high polymer escape pipes
We advocate & ldquo; There is no trivial matter between product quality and construction safety;, Especially related to the safety of tunnel engineering, only by solving the problems of design and construction quality and product quality, and analyzing the Countermeasures under different construction environments, can we find more effective construction methods and ways, so as to ensure the safety of construction personnel
Service details: Sun Zong 185-3886-9025 , 0379-65227507 more details: http://www
ffgdw
com/ ， http://www
lynmgd
com  ; Service address: North District of Airport Industrial Park, Luoyang City, Henan Province