HANGZHOU | Subway

[saiho]

Originally Posted by VECTROTALENZIS

Are the trains the same comparable size as Shanghais line 2 trains?

no, they are B size trains so they are 2.8m wide and ~19 meters long. In shanghai metro line 2 they use A size trains which are 3m wide and ~22 meters long.

[Silly_Walks]

Originally Posted by big-dog

Guide dog and the blind on Hangzhou Subway



by @丑鱼尼莫

Was this in the news? If so: why?

[big-dog]

I found this on weibo, a social network website.

[skyridgeline]

Chinese use their umbrellas just about everywhere - now in subway too .


时间：2012-11-30 18:19:34 作者：义商网 来源 yw0579114.com




Something is really fishy with Hangzhou Metro.



"Cracks appear in tube in Hangzhou's subway line"
By Zha Minjie | 2012-5-17 | shanghaidaily.com

CRACKS have appeared in a subway tunnel under construction in Hangzhou but will cause neither safety problems nor delays, according to the subway's builders.

The builders said they would conduct repair work soon to solidify the structure of Hangzhou's Line 1, which had the nation's worst subway-related construction accident more than three years ago.

In that case, on November 13, 2008, a foundation caved in, killing 21 workers and injuring more than 20 others.

The Hangzhou Metro Group said yesterday that the recently discovered cracks on segments of the tube were caused by pressure from large piles of earth from another construction project nearby.

The subway builder said the mounds of earth excavated from the other project had been "piled up very high, up to six to seven meters."

The pressure caused water leaks, discovered by metro workers during routine checks.

Officials of the metro group said the tube's integrity is not in any danger and the subway, which began construction in 2007, is expected to start test runs by October. It is expected to have 30 stations, they said.

[P05]

What a disaster

[hmmwv]

I thought the ground water leak is at a different area from the picture, which actually shows a cracked fire system piping. I do think that there needs to be serious inquiries about this particular metro system, it took over five years to build and is already having major issues days after opening.

[FM 2258]

I hope they get their problems fixed, I don't want to see a major disaster from people taking the new metro.

[hkskyline]

Wait a minute. The cracks appeared during construction and note the article is from May. Do we have any information about problems since opening?

[hmmwv]

There are a lot of reports in Chinese but limited news in English.

http://shanghaiist.com/2012/11/30/wa..._metro_soa.php

[hkskyline]

Originally Posted by hmmwv

There are a lot of reports in Chinese but limited news in English.

http://shanghaiist.com/2012/11/30/wa..._metro_soa.php

So there is water leaking into an underground passage. Suddenly that means the whole system is unsafe? I do recall New York subway stations that leaked and it rained inside when it rained outside. Perhaps they will experience a cave in soon?

If the river breached the passage, it would flood the entire concourse easily, and not descend from the ceiling in such a controlled manner. The deluge would be huge. Hong Kong media has reported water seepage at 1 station on the new Line 1 (should be the one in the article you posted). The metro company suspects due to the proximity to nearby rivers, the water table is higher than normal and hence there is seepage.

http://orientaldaily.on.cc/cnt/china...00178_008.html

I'm interested to know what other problems they have reported. So far I haven't picked up anything beyond that 1 station.

[hmmwv]

Originally Posted by hkskyline

I'm interested to know what other problems they have reported. So far I haven't picked up anything beyond that 1 station.

So far leaks have occurred at four different stations: Chengzhan (railway station), Xianghu, Wulin Square, and Anding Rd.

http://news.163.com/12/1203/07/8HPKR6GS00011229.html

[Asia4Asia]

However, less than a week after the joyful opening ceremony, the Subway Line 1's Chengzhan and Xianghu stations experienced continuous water leaks. Although the subway's operator explained the causes of water leaks in order to restore public confidence in its safety, it was the explanation that exposed a few problems concerning the subway's safety. First, they "forgot" installing special drainage pipelines in Chengzhan Station where the soil has high water content. Second, there were serious quality problems with the expansion joints of the water pipes in Xianghu Station, which led to water leaks.


http://english.peopledaily.com.cn/102774/8045226.html

Anyway these problems can find a solution

[Silly_Walks]

Originally Posted by hkskyline

So there is water leaking into an underground passage. Suddenly that means the whole system is unsafe? I do recall New York subway stations that leaked and it rained inside when it rained outside. Perhaps they will experience a cave in soon?

I don't think the New York subway system leaking is a good thing, but you are comparing a 100 year old tunnel with a brand new one...

[_Night City Dream_]

Keep in mind the very complicated situation in terms of geology and hydrogeology. For many years they hadn't decided to construct a metro in Hanzghou due to that.

[hkskyline]

Originally Posted by Silly_Walks

I don't think the New York subway system leaking is a good thing, but you are comparing a 100 year old tunnel with a brand new one...

Well, age is not an excuse for not maintaining the infrastructure properly. If leaks on opening are a problem, then I think not taking care of things over time is also a problem.

[city_thing]

All rail tunnels leak in some way or another, and there's water collection mechanisms. Of course they don't normally leak quite this badly!

[hmmwv]

That's exactly what happened, apparently they didn't design adequate water collection and drainage systems, and now emergency work is being done to get that system in place.

[Silly_Walks]

Originally Posted by hkskyline

Well, age is not an excuse for not maintaining the infrastructure properly. If leaks on opening are a problem, then I think not taking care of things over time is also a problem.

I agree, which is why I said "I don't think the New York subway system leaking is a good thing".

[Asia4Asia]

http://www.youtube.com/watch?v=Lh_CgFFvNQQ

[Asia4Asia]

Just a video of the Line 1 here:http://www.youtube.com/watch?v=Lh_CgFFvNQQ


For what i know the subway is working good,
anyway are there any information about the problems of water leaks?