Rizhao new plastic tunnel escape pipe

  The left tunnel of Nanshan tunnel is under final attack and is expected to be completed by the end of July
Nanshan tunnel, located in hujialong village, Liushi Town, Yueqing City, is an important node and controlling project of phase II project around the north, and the last tunnel to be connected

It is understood that at present, the phase II civil engineering project around the North has entered the critical stage, and other subsequent ancillary projects have basically entered the site
As of July 12, the effective investment of about 3
8 billion yuan has been completed, and it is planned to be fully completed and opened to traffic in May 2019
The completion of the project will add another convenient channel for Yueqing City, the port area on the North Bank of Oujiang River and the inland hinterland of Wenzhou

In order to strengthen the safety management of tunnel construction and ensure the personal safety of construction personnel during tunnel excavation, according to the guiding opinions on rescue and rescue in railway tunnel construction (TJs [2010] No
88) issued by the Ministry of Railways and the actual surrounding rock conditions of the tunnel in the pipe section, the requirements for the installation of tunnel escape routes during tunnel construction are as follows:
1
For tunnel construction in the work area, tunnel escape routes should be set up in advance in class IV, V and VI surrounding rock sections,
2
Ultra high molecular weight polyethylene pipes with an outer diameter of 800mm and a wall thickness of not less than 30mm are used as escape routes
They are arranged from the lining working face to an appropriate position within 20m away from the excavation surface
Working ropes are reserved in the pipes to facilitate escape, rescue, communication and transmission of various items

3
The longitudinal connection of UHMWPE tunnel escape pipeline adopts the chain connection method to prevent the steel pipe from being washed off when it collapses After receiving this notice, all units must attach great importance to it, set up escape pipelines according to the requirements of the notice and ensure that they can play a practical role in the event of a door closing accident
The safety and Quality Department of the project management department will * check the situation of this work, and punish the units that fail to implement it according to the situation

Requirements for setting of tunnel escape pipe:
1
Escape pipe, adopt φ The 800mm ultra-high polymer escape pipe is set at the newly constructed end of the second lining, and the distance from the end of the second lining shall not be more than 5 meters
It is arranged from the lining working face to the appropriate position within 20m away from the excavation surface
The pipe is laid along the side of the initial support to the tunnel face, and the working rope is reserved in the pipe to facilitate escape, rescue, contact and transmission of various items
The longitudinal connection of socket steel pipes can adopt measures such as chains, Prevent the steel pipe from being washed off in case of collapse

2
During the process of moving the secondary lining trolley into place, the escape pipes and ultra-high polymer escape pipes should be removed section by section temporarily
It is strictly forbidden to remove them in place at one time, so as to ensure the effectiveness of the escape pipes at any time

3
When passing through the excavation steps, the escape pipes and ultra-high polymer escape pipes should be arranged according to the extended steps, and 135 DEG should be installed; The adapter shall be extended accordingly
4
The escape pipe adopts φ 800mm ultra-high polymer escape pipes or other impact resistant pipes, with a pipe joint length of 3M and a wall thickness of 30mm
The pipe joints can be connected by a sleeve with a diameter greater than the diameter of the escape pipe, with each end connected by 1m, and temporarily fixed by rubber rings or wooden wedges
In order to ensure that the pipeline bears the pressure of the collapsed body, the material and pipe used must ensure its pressure bearing capacity and the firmness of the connector, and can only be used in the tunnel after specific tests in the laboratory

5
The construction site shall prepare enough pipelines and connecting materials according to the surrounding rock of the tunnel and the excavation method
In addition to the whole section of pipeline, it shall also prepare enough 1m, 2M and 3M short section pipelines and adapters

6
The escape pipe and ultra-high molecular escape pipe are processed and used, combined with the material and the actual situation on site
The connection is simple, firm, tight and reliable, and temporary fixing measures are taken on the ground
The pipe orifice can be temporarily covered during construction, and it is easy to open and close

 
Technical parameters of ultra-high polymer escape pipeline:
1
The average molecular weight of the escape pipeline and ultra-high molecular weight escape pipeline is more than 2
5 million, and the elastic modulus =700mpa;
2
Common specifications of escape pipes and ultra-high polymer escape pipes: 800*30mm, with an outer diameter of 800mm and a wall thickness of 30mm
3
Length standard: 1
5 meters, 3 meters and 4 meters, which can also be customized according to requirements

4
Connection mode: hoop connection, chain soft connection
5
Color: orange
Advantages of the new tunnel escape pipe:
1
High rigidity of pipe ring
It has good pressure resistance and is not easy to deform
When collapse occurs in the construction of highway and railway tunnels, the pressure bearing capacity and environmental resistance of the new tunnel escape pipe are far higher than those of ordinary pipes

2
The material is light in weight and convenient in installation and handling

It is convenient for disassembly and handling, and can be moved without the help of mechanical equipment in the narrow space of the tunnel

3
The pipeline has good toughness and high impact strength

When impacted by strong external forces, the new anti impact tunnel escape pipe instantly deforms, absorbs a large amount of impact energy, and then quickly returns to its original shape, providing a reliable guarantee for the emergency rescue of highway and railway tunnel construction

4
The pipeline is anti-aging, reusable and cost saving

The new tunnel escape pipe uses ultra-high polymer as the raw material, which has excellent anti-aging and embrittlement functions, and can be reused to save the purchase cost

An important problem was found during the investigation: low price: Henan Province is the only manufacturer of ultra-high polymer tunnel escape pipes, with 5 tunnel escape pipe production lines, which has high production efficiency
The manufacturer ships directly, and the price is cheaper
As an important safety facility in tunnel construction, emergency escape pipelines are set up on site in some tunnel projects and not in some tunnel projects
Why is this? Is it not in line with safety requirements without setting escape pipelines? Perfect after-sales service: our company has a professional after-sales service team, which can assign technicians to provide free on-site service according to users' needs to assist users in installation, debugging and maintenance

 
Luoyang Guorun New Material Co
, Ltd
specializes in the production of ultra-high polymer tunnel escape pipes, and has cooperation with China Construction Second Engineering Bureau, China Communications Second Highway Engineering Bureau, China Railway Group, etc
ultra-high polymer tunnel escape pipes sell well in Yunnan, Guizhou, Sichuan, Gansu, Shaanxi and other regions, and are widely used At the same time of these constructions, the safety work of construction personnel in the tunnel should be done well
It is necessary to set tunnel escape pipes
In many projects, major accidents due to unqualified safety measures have also attracted attention, and relevant inspection plans have been formulated
Reliable product quality: the pilot base of Shanghai Research Institute of chemical industry, and the raw materials of tunnel escape pipes are provided by the upper court
The molecular weight is between 2
5 million and 3
5 million, and the product quality is reliable

General manager Sun of Guorun new material -- escape pipeline 136-9888-7149!