New escape pipe, material of tunnel escape pipe, tunnel construction technology

&Nbsp; With the continuous development of society, there are more and more road tunnel construction sections
It is for this reason that the construction difficulty and technical requirements of road tunnel engineering are constantly improving, especially for the construction of super long tunnels, which are more difficult and more dangerous
For such construction sections, the conditions are very bad and the geological conditions are complex
In order to face the safety problems that may occur due to complex construction conditions and geological conditions, the state uniformly stipulates that the tunnel escape pipeline shall be equipped during the construction of highway tunnels to solve the safety escape of construction personnel in case of emergencies
This will improve the safety of highway tunnel engineering
Analyze the difficulties and technologies in the construction of highway tunnel engineering, so as to better improve the efficiency of highway tunnel engineering construction and ensure the smooth development of engineering construction

Preparation before highway tunnel construction:
1、 The portal works shall be arranged as a whole with the adjacent works, and should be completed as soon as possible before the rainy season

2、 Before the construction of the portal, the stability of the mountain above the side and front slopes shall be checked first, and the suspended rocks shall be removed and the dangerous rocks shall be treated

3、 The slope shall be brushed in place at one time
It is not allowed to enter the tunnel after the slope of the upper half section is brushed
In this way, it is easy to cause cave in when the lower half section is brushed after entering the tunnel

The installation position of the tunnel escape pipeline shall be reserved in advance at the tunnel construction site
When the tunnel escape pipeline passes through the heading platform, it shall be arranged along the steps
The overhead height and length of the pipeline shall not affect the construction and shall be convenient for escape
The tunnel escape pipe shall be kept flat, dry and smooth after installation, and shall not be used for emergency escape
The length of the tunnel escape pipe set at the construction site shall not be less than 100m

Eight properties of UHMWPE escape pipe:
1
high wear resistance
The molecular weight of UHMWPE (more than 2
5 million) determines its low friction coefficient and good wear resistance, which makes the wear resistance of tunnel escape pipe 4-7 times higher than that of steel pipe and stainless steel pipe
The inner wall is smooth and will not cause secondary damage
It is not suitable for scaling
It is safe and hygienic to place it for a long time

2
Super tensile strength and high impact resistance
The tensile strength of UHMWPE transmission pipeline is 2
5 times that of PE80 and 2 times that of pel00
At the same time, its environmental stress cracking resistance is more than 1 time that of PE100, and its fatigue resistance is more than 30 times that of pel00

3
The corrosion-resistant tunnel escape pipeline has excellent chemical resistance
Except for strong oxidizing acid, it can adapt to various corrosive media within a certain temperature and concentration range, and its physical properties are basically unchanged

4
Excellent low temperature resistance
Its impact resistance and wear resistance are basically unchanged at minus 269 ℃

5
The fire-retardant tunnel escape pipe is made of fire-retardant materials, which are used in the fire-proof environment
It is modified by adding flame retardant, and is manufactured by special processing technology, which overcomes the flammability of ultra-high molecular weight polyethylene and has flame-retardant performance

6
Silencing   The tunnel escape pipe has strong impact resistance and can eliminate noise

7
It is hygienic, non-toxic, free from mildew and bacteria
It can contact food if it meets the indicators specified in the standards

8
Light weight and convenient installation
The proportion of unit pipe length of the pipeline is only one eighth of the weight of the steel pipe, making loading, unloading, transportation and installation more convenient

Luoyang Zhongxiong Pipe Industry Co
, Ltd
PE pipe   UHMWPE pipe   Steel belt corrugated pipe   Tailings polyethylene pipe   Tunnel escape pipe
&Nbsp; 3PE anticorrosive pipeline
Address: Science Park, Luolong District, Luoyang City
Contact: Mr
Xu 18103795607
&Nbsp& Nbsp& Nbsp& Nbsp& Nbsp& Nbsp& Nbsp& Nbsp; Manager Liu 17796736567
Service hotline: 0379-61292158
Qq:314088970
Email: zhongxiongguanye@163
com
Website: www
zhongxiongguancai COM
Quality inspection video of Zhongxiong pipe industry: http://v
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