Shanghai escape pipeline is compression resistant and durable

  According to the relevant person in charge of Taihu tunnel project department, after the pouring of the side wall of the first section of the buried section of the tunnel is completed, the & ldquo; Cotton padded jacket & rdquo; Put into practical application& ldquo; The material is composed of thermal insulation layer, moisturizing layer and self-adhesive layer, which has the four characteristics of thermal insulation, moisturizing, self-adhesive and fire prevention& rdquo; When removing the side wall formwork, the construction personnel laid 120 square meters of maintenance materials, and sprinkled water on the moisturizing layer before pasting
Then, it is directly attached to the facade of the tunnel side wall by using its self-adhesive characteristics
The heat generated by the hydration of the concrete will maintain the concrete surface temperature above 20 ℃ during the curing period
In this way, the Taihu tunnel is like wearing a cotton padded jacket, through thick green special & ldquo; Cotton padded jacket & rdquo; Lock the heat and moisture in the insulation layer to achieve the purpose of heat preservation and moisture retention
The escape passage is a very practical safety protection equipment in the past two years
The appearance of the product is orange and straight
The commonly used models 800 * 30 (outer diameter: 800mm, wall thickness: 30mm) and 860 * 30 (outer diameter: 800mm, wall thickness: 30mm) have a length of 3M, and the weight of one meter is about 69kg, so it is also called light escape pipe
Due to frequent accidents in tunnel construction and the state's attention to the protection of safety, escape pipes are widely used

Material: the ultra-high molecular weight escape passage is made of ultra-high molecular weight polyethylene with a molecular weight of more than 2
5 million
The color of the pipe is orange, with a length of 3 meters and 6 meters
The weight of one meter is 69kg, the density is 0
930, the density is small, the hardness is large, and the density is small
It is not easy to deform

Superior performance of tunnel life-saving pipeline
The tunnel life-saving pipeline has excellent comprehensive performance, mainly including the following points:
1
Light weight, only about 1 / 3 of the weight of steel pipe, convenient disassembly and handling

2
The pipeline has good toughness and high impact strength
It deforms instantly when impacted by strong external force, absorbs a large amount of impact energy, and then quickly returns to its original shape, which provides an extremely safe and reliable guarantee for escape and emergency rescue in tunnel construction

3
The pipeline ring has high stiffness, good pressure resistance and is not easy to deform
In case of collapse in highway tunnel construction, the pressure bearing capacity and anti environmental damage capacity are far higher than those of ordinary pipelines

4
The installation is convenient, and the tunnel life-saving pipe is connected by pipe hoop, which is convenient for disassembly and assembly

5
It can be reused
Because the life-saving pipeline is made of ultra-high molecular weight polyethylene, which has good anti-aging performance and slow embrittlement performance, the theoretical service life of the pipeline is more than 100 years

Physical parameters of tunnel life-saving pipeline
Project unit: ultra high molecular material model other engineering plastics
Sll-2 sll-3 nylon 66 polycarbonate polyoxymethylene polytetrafluoroethylene
Density g / cm & sup3; 0
935 0
930 1
14 1
2 1
4 2
16
Average molecular weight GB / t1841-1980 2
5 million 3 million ----
Yield point stress kg / cm & sup2; 220 220 - - - -
Tensile strength kg / cm & sup2; 400 500 750 640 700 200
Elongation at break% 350 300 200 110 75 300
Impact strength (without notch) kg Cm / cm can't destroy 11 80 10 16
Impact strength (notch) kg cm/cm 110 105 - - - -
Brinell hardness D 40 100 118 120-
  The impact strength of tunnel life-saving pipeline is more than 10 times that of PE100 at room temperature, and the cracking resistance is about 2 times that of PE100
Moreover, the lower the temperature, the stronger the impact resistance
Its repeated impact thickness and higher surface hardness can resist various external forces and crustal deformation
It is safer and more reliable than steel pipe

Guorun life-saving pipeline is a safety material recommended by China Railway and CCCC
The configuration of life-saving pipeline is an important item clearly stipulated in the nine regulations on tunnel safety construction

Ultra high polymer life-saving Pipeline -- new type & phi; 800 super high life tube
Ultra high life-saving pipe material is a thermoplastic linear engineering plastic with an average molecular weight of more than 2 million, which is polymerized by special materials under the action of catalyst
It is a rare impact resistant engineering plastic in the domestic market, and its impact resistance is far superior to that of steel pipe

[Guorun new material] is a high-tech joint-stock enterprise specializing in the R & D, production and sales of safety materials and supporting equipment such as life-saving pipes, life-saving pipes, tunnel life-saving pipes, ultra-high polymer life-saving pipes, new tunnel life-saving pipes, light tunnel life-saving pipes, steel life-saving pipes and suspended life-saving pipes
The new life-saving tube developed by the company has the advantages of light weight, good impact resistance and pressure resistance toughness, convenient disassembly and handling and reasonable design
It has won a number of patented technologies and has been recommended by the project Department of CCCC, China Railway, China tunnel and road and Bridge Group Zi!
Service details: Sun Zong 185-3886-9025 , 0379-65227507
More details: http://www
ffgdw
com/ ， http://www
lynmgd
com
Service address: North District, Airport Industrial Park, Luoyang City, Henan Province