Recently, the subway in Chongqing has been on fire! The deepest subway in Chongqing is buried deep underground. It takes only 3 minutes to take the escalator. It's terrible! Recently, the biggest buried depth is 60 meters. The red earth station of Chongqing rail line 6, the first subway station in China, is on fire on the Internet.
In fact, there is a deeper station under the red earth station of line 6 - red earth station of line 10. Today (18), the reporter learned from Chongqing Rail Transit Line 10 civil engineering bid section 1 of China Railway sixth bureau that the buried depth of red earth station of line 10 is 94.467 meters, equivalent to the height of 31 floors. With the completion and opening of the first phase of line 10 by the end of this year, the red earth station of line 10 will surpass the red earth station of line 6 and become the deepest subway station in China. (this article is exclusively compiled by WYH, editor of sihai.com. If you need to reprint it, please indicate the source and source. Related article link: http://www.4hw.com.cn/life/zone.html)
Buried to 94.467 meters, it will become the deepest subway station in China
When it comes to the deepest subway station in China, many people will think of the laterite station of Chongqing rail line 6, with a maximum buried depth of 60 meters. The station is equipped with 32 escalators for passengers to travel, which is also the deepest subway station in operation in China at present.
However, in a short time, the red earth station of Metro Line 6 will no longer be the deepest subway station in the country. It will be replaced by another red earth station - red earth station of Metro Line 10.
It is reported that the red earth station of Metro Line 10 is located under the red earth station of Metro Line 6. It intersects and transfers with the "ten" character. The buried depth is 94.467 meters, which is equivalent to the height of 31 floors. The tunnel between liyuchi and laterite area of Metro Line 10 is 84 meters deep, which is equivalent to 28 floors high, all of which have reached the national subway depth record.
It is worth mentioning that the buried depth of liyuchi station of line 10 is 76 meters, next to the laterite station of line 10. (this article is exclusively compiled by WYH, editor of sihai.com. If you need to reprint it, please indicate the source and source. Related article link: http://www.4hw.com.cn/life/zone.html)
91 escalators and the red earth station of line 6 form the super escalator network group
According to the introduction, the red earth station of line 10 is equipped with 4 entrances and exits, of which 3 are connected with the existing red earth station of line 6, and one is reserved.
Because of the deep buried depth of the red earth station of line 10, it is necessary to take the four level escalator continuously from the station to the entrance and exit passageway of the red earth station of line 6. After that, take the existing escalator of line 6 red earth station to the ground.
In order to facilitate passengers to get in and out of the station or transfer, there are 91 escalators in the red earth station of line 10 and line 6, forming a rare network group of super escalators in China.
The reporter learned that in order to facilitate passengers to get in and out of the station, the red earth station of line 10 has also designed an accessible elevator. The well depth of the barrier free elevator in the red earth station of line 10 is 78.7 meters, which is equivalent to 26 floors. It is the deepest barrier free elevator in the subway station of China. (this article is exclusively compiled by WYH, editor of sihai.com. If you need to reprint it, please indicate the source and source. Related article link: http://www.4hw.com.cn/life/zone.html)
Reveal secrets
How to construct the deepest subway station in China?
The buried depth of hongtudi station is 94.467 meters, liyuchi station is 76 meters, and the buried depth of the section is 84 meters. It is the deepest two subway stations and the deepest subway section in China. 'workers can't see the bottom of the hole and the bottom of the hole during construction, so they can only use walkie talkie to communicate. 'the person in charge of the first bid section of Chongqing Rail Transit Line 10 of China Railway No.6 Engineering Bureau told reporters.
The person in charge said that due to the large depth of burial, a lot of steep slope operations are required in the construction, so all channels can only be constructed by the bottom-up step drilling and blasting method. For such steep slope construction, all materials and tools can only be transported manually, so the difficulty will be doubled for each level of increase. In order to solve the problem of steep slope operation, they actively innovate, install winch at the bottom of the passage, use electric wheels to pull special transport vehicles, transport materials, and improve the working efficiency.
It is understood that liyuchi station to hongtudi station of Metro Line 10 is located in the bustling commercial center and residential area of Chongqing, and passes through the main urban road for many times, making it the first fully concealed super section subway tunnel in China. (this article is exclusively compiled by WYH, editor of sihai.com. If you need to reprint it, please indicate the source and source. Related article link: http://www.4hw.com.cn/life/zone.html)
The main tunnel section of liyuchi station and hongtudi station is 476 square meters, 26.26 meters wide and 21.567 meters high. Looking up from the inside, it is like looking up at an eight story residential building, where 25 ton crane can operate easily. However, liyuchi station and lateritic station are all underground excavation stations. The underground operation site is poor in narrow conditions and limited in sight, so large machinery such as tower crane and truck crane cannot be used.
'for such a large section, the commonly used one-time drilling and blasting operation method cannot be used. According to the person in charge, after research, they used nine drilling and blasting excavation methods on both sides of the wall, that is, to divide a large hole section into nine small hole sections with the same pattern of "well", and adopt the principle of "from top to bottom, first two sides and then the middle", to drill and blast successively, and finally connect the nine small holes together to form a 476 square meter super large section. This highly difficult construction method has high requirements for the operation accuracy and safety measures of each process. Drilling, blasting, arch erecting, anchor spraying, assembly trolley, steel bar binding, concrete pouring secondary lining, etc. must be fully standardized and accurate in place.
At present, the main works of red earth station and liyuchi station of Metro Line 10 have been completed and the interior decoration is in progress.