Catenary embedded channel is a kind of equipment used in rail transit engineering, its function is to pre-bury the channel underground, to provide the foundation for the installation of catenary. With the rapid development of urban rail transit, the application of catenary embedded channel is becoming more and more extensive. This article will introduce the catenary embedded channel in detail from the following aspects.
Catenary embedded channels can be divided into different types according to different classification methods. According to the use, it can be divided into general type and special type; According to the material, it can be divided into steel and concrete; According to the shape, it can be divided into rectangular and circular. Different types of catenary embedded channels have different characteristics and scope of use, and choosing the right type can better meet the needs of the project.
Third, the construction method of catenary embedded channel.
The construction methods of catenary embedded channel mainly include open cut method, hidden excavation method and pipe jacking method. The cut-and-cover method refers to the method of excavating trenches in the ground, laying pipes and lines, and then backfilling them in the trenches. Underground excavation refers to the method of excavation below the ground and construction by means of drilling and grouting. Pipe jacking method refers to the method of using pipe jacking equipment to jack pipes into the ground to realize pipeline laying. Different construction methods have different advantages and disadvantages, and choosing the right construction method can better guarantee the quality of the project.
Fourth, the application case of catenary embedded channel.
With the rapid development of urban rail transit, the application of catenary embedded channel is becoming more and more extensive. The following are some application examples of catenary embedded channels:
1.Beijing Metro Line 10: In the construction of Beijing Metro Line 10, catenary pre-embedded channel technology was adopted, which successfully realized the protection of existing roads and buildings, and reduced the difficulty and cost of construction.
2.Shanghai Metro Line 13: In the construction of Shanghai Metro Line 13, steel catenary embedded channel is adopted, which has high strength and durability and can meet the requirements of long-term use.
3.Guangzhou Metro Line 6: In the construction of Guangzhou Metro Line 6, a concrete catenary embedded channel is adopted, which has good durability and stability, and can ensure the long-term use effect of the catenary.
As a new type of rail transit equipment, catenary embedded channel has a wide range of application prospects. With the rapid development of urban rail transit, the application of catenary embedded channel will become more and more extensive. In the future, it is necessary to further strengthen the research and application of catenary embedded channel, improve its performance and service life, and make greater contributions to the development of urban rail transit.