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Recently, the intersection of Wenbo East Road and Nongke Road in Zhengzhou City is excavating the city's first cable tunnel, which is the fifth cable tunnel in the country, which is expected to be completed in June this year and cost 600 million yuan
.
"This tunnel is the 220 kV Hongqi Cable Tunnel Project
.
We use the shield construction method, just like
we build the subway.
The relevant person in charge of the construction department of Zhengzhou Power Supply Company said that the tunnel has a total length of 6,811 meters, starting from the 220 kV Jiangzhai substation in the north and connecting
with the 220 kV Hongqi substation.
At present, the large shield machine is working, and the muck is poured into the "small train" through the conveyor belt and transported
out.
According to reports, the shield construction method is adopted for the whole line of this cable tunnel, which is the first time that the same construction method
as the subway is adopted in the field of power supply in Zhengzhou.
Dou Xiaotian, the project leader of the first tender section of China Railway Tunnel Group No.
2 Co.
, Ltd.
, which is in charge of the construction, said that the cable tunnel has an outer diameter of 4 meters and an inner diameter of 3.
5 meters, which is smaller than the subway tunnel with an outer diameter of 6 meters
.
The shallowest part of the tunnel is 6 to 7 meters above the ground, the deepest point is 20 meters above the ground, and the average depth is about
10 meters.
"Zhengzhou City plans a lot of subway lines, and our cable tunnel passes under the future subway line, so the deepest point is up to 20 meters
.
"
In Zhengzhou, it is common to dig pipelines during construction, and in order to cooperate with the construction of urban construction projects, the power supply department also has to take the initiative to relocate the original power pipelines, which has caused the scene of "Zhengzhou Zhengzhou, digging ditches every day
".
After the cable tunnel was put into use, all 220 kV and 110 kV cables were "settled"
.
If there is a problem with the line, you can drive the maintenance car into the service
.
This tunnel solved the problem
of road excavation once and for all.
"In the future, if the substation is planned and laid out in the main urban area, this cable tunnel can be extended
as needed.
"
Recently, the intersection of Wenbo East Road and Nongke Road in Zhengzhou City is excavating the city's first cable tunnel, which is the fifth cable tunnel in the country, which is expected to be completed in June this year and cost 600 million yuan
.
"This tunnel is the 220 kV Hongqi Cable Tunnel Project
.
We use the shield construction method, just like
we build the subway.
The relevant person in charge of the construction department of Zhengzhou Power Supply Company said that the tunnel has a total length of 6,811 meters, starting from the 220 kV Jiangzhai substation in the north and connecting
with the 220 kV Hongqi substation.
At present, the large shield machine is working, and the muck is poured into the "small train" through the conveyor belt and transported
out.
According to reports, the shield construction method is adopted for the whole line of this cable tunnel, which is the first time that the same construction method
as the subway is adopted in the field of power supply in Zhengzhou.
Dou Xiaotian, the project leader of the first tender section of China Railway Tunnel Group No.
2 Co.
, Ltd.
, which is in charge of the construction, said that the cable tunnel has an outer diameter of 4 meters and an inner diameter of 3.
5 meters, which is smaller than the subway tunnel with an outer diameter of 6 meters
.
The shallowest part of the tunnel is 6 to 7 meters above the ground, the deepest point is 20 meters above the ground, and the average depth is about
10 meters.
"Zhengzhou City plans a lot of subway lines, and our cable tunnel passes under the future subway line, so the deepest point is up to 20 meters
.
"
In Zhengzhou, it is common to dig pipelines during construction, and in order to cooperate with the construction of urban construction projects, the power supply department also has to take the initiative to relocate the original power pipelines, which has caused the scene of "Zhengzhou Zhengzhou, digging ditches every day
".
After the cable tunnel was put into use, all 220 kV and 110 kV cables were "settled"
.
If there is a problem with the line, you can drive the maintenance car into the service
.
This tunnel solved the problem
of road excavation once and for all.
"In the future, if the substation is planned and laid out in the main urban area, this cable tunnel can be extended
as needed.
"