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Wet Metro 'due to subsidence'
By Zha Minjie |
June 20, 2011, Monday
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SUBSIDENCE is to blame for water leaking into the city's Metro stations, the operator said yesterday.
In recent days, Shanghai Shentong Metro Group has resorted to using sandbags and buckets to reduce the amount of water slopping around on Metro station floors.
Last week, the operator claimed much of the problem was caused by passageways being exposed to the elements and passengers bringing wet umbrellas into stations.
But officials now say it's down to subsidence at recently built stations. "The city's long and narrow Metro station structures are more likely to be affected by subsidence," especially during the first few years after construction, said the operator.
Travelers have gone online to complain that water can be seen in many places on most Metro lines and express fears that the problem will get worse while the plum rain season lasts.
One passenger posted a photograph of water seeping into a train carriage on Metro Line 3 last week.
Among stations on Metro Line 6 and Line 2, serious leaks have been reported since last week. Staff at Line 6's Jinqiao Road Station had to close part of the stairway and use buckets to collect water until repairs could be completed.
The most serious leaks have been reported in Metro transit passages connecting several subway stations, with passengers reporting sloshing about in water 4 centimeters deep on Lines 3, 4, and 9.
"Metro staff and cleaners will be on standby 24 hours a day at some key stations," said a Metro official, surnamed Feng.
Feng added that few leaks had been reported in the 44 Metro stations currently under construction.
Shentong said 13,000 sandbags and 500 pumps have been used in efforts to keep water out of stations.
Leaks had already been a problem at some recently built stations.
While the operator puts this down to subsidence, others have claimed that a rush to meet deadlines in the lead-up to last year's World Expo schedule affected work quality and contributed to leaks.
Three new Metro lines went into operation just as the Expo started in May last year.
The city now has 11 subway lines.
In recent days, Shanghai Shentong Metro Group has resorted to using sandbags and buckets to reduce the amount of water slopping around on Metro station floors.
Last week, the operator claimed much of the problem was caused by passageways being exposed to the elements and passengers bringing wet umbrellas into stations.
But officials now say it's down to subsidence at recently built stations. "The city's long and narrow Metro station structures are more likely to be affected by subsidence," especially during the first few years after construction, said the operator.
Travelers have gone online to complain that water can be seen in many places on most Metro lines and express fears that the problem will get worse while the plum rain season lasts.
One passenger posted a photograph of water seeping into a train carriage on Metro Line 3 last week.
Among stations on Metro Line 6 and Line 2, serious leaks have been reported since last week. Staff at Line 6's Jinqiao Road Station had to close part of the stairway and use buckets to collect water until repairs could be completed.
The most serious leaks have been reported in Metro transit passages connecting several subway stations, with passengers reporting sloshing about in water 4 centimeters deep on Lines 3, 4, and 9.
"Metro staff and cleaners will be on standby 24 hours a day at some key stations," said a Metro official, surnamed Feng.
Feng added that few leaks had been reported in the 44 Metro stations currently under construction.
Shentong said 13,000 sandbags and 500 pumps have been used in efforts to keep water out of stations.
Leaks had already been a problem at some recently built stations.
While the operator puts this down to subsidence, others have claimed that a rush to meet deadlines in the lead-up to last year's World Expo schedule affected work quality and contributed to leaks.
Three new Metro lines went into operation just as the Expo started in May last year.
The city now has 11 subway lines.
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