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Yesterday the central urban area is more serious water 104

Source 2012-8-10 8:31:23 Ningbo Evening News


Spillway slow because the Sanjiang water level high

The wisdom chased yesterday to map out the real-time monitoring urban case of a strong storm drains slower Lot maps.
  Reporter border town rain correspondent Yong-Jun Liu Wangjie Jin Zhu Binbin
  Since yesterday morning, the typhoon "sea anemone" and finally away from the Yongcheng. Many people out in the morning only to find that the road is filled with stagnant water, even in some places water into the river. More strange is that in some places the day before yesterday had no water, the water suddenly yesterday morning to take out. According to reports, has been since the day before yesterday, the city waterlogging situation frequently in an emergency, the central city the gradual emergence of a large area of water phenomenon, and waterlogging from the point to waterlogging spread to the chip. As of yesterday afternoon, the central city more serious water point 104. Why the city is there so much stagnant water it? Yesterday morning, the reporter interviewed on the matter of the relevant departments.
  A
  Surface water is saturated
  According to reports, the city water did not break out the typhoon brought heavy rainfall to the surface water is saturated. Yesterday afternoon, according to the Municipal Meteorological Station chief forecaster Pang Baoxing, the 11th typhoon "sea anemone" brought to the urban area rainfall is about 236 mm, but Prior to this, the 10th typhoon "Sura" to bring greater precipitation, groundwater has been completely saturated.
  2
  Sanjiang water level remains high
  "Sanjiang water level high lead to city spillway slow, another major factor is one." Urban flood control headquarters staff by the astronomical tide, Fenghua River, the Yaojiang upstream water level higher, the main city is located in Ningbo Sanjiang the converging point of the Sanjiang water level elevation. A large part of the city's drainage system through the inland routed to the Sanjiang Sanjiang water level high to hurt the urban poor drainage, coupled with the tide higher, the river water to inland, resulting in some sections and low-lying residential water .
  Recently, a time when the formation of astronomical tide twice a month, resulting in Yao River, the Fenghua River, Yongjiang water level high, this urban drainage work is very difficult. It is understood that the water system of the city and the surrounding area, including the inland of South Tanghe the Xitang river, and after the Tong River, east of Ningbo New River complex of river water network, peripherals, Yin East, Yin South Yin Western and other rivers, the vast majority of these water systems are discharged into the Yao River, the Fenghua River channel to the sea in, Yongjiang this Sanjiang. The impact due to the the Sanjiang high water level backwater, but also a serious impact on the urban drainage effect.
  City Bureau of Water the Sanjiang river Authority staff, these days, on the one hand the formation of astronomical tide Yongjiang downstream to form a huge back to the Bay the other hand, the Fenghua River, Yao has to absorb the huge flow to the upstream . Fenghua River upstream, the great of Ninghai and Fenghua aspects of precipitation, so the runoff of the two directions of convergence, resulting in the Sanjiang the middle and lower reaches of the water level high, whether it is high tide and low tide, the actual water level did not significantly decline.
  3
  Drainage needs some time
  The staff of the Municipal Urban Management Bureau drainage company, Ningbo urban rainwater down from the sky, the general flow along the water wells on the road to the drainage network, and then rely on the gravity discharged into the Beidou River and other inland. This link, some sections of the surface fell into the water facilities are relatively old, coupled with the typhoon brought a lot of leaves, it tends to retard involved, resulting in a more serious water of the urban part of the lot.
  Discharged into inland links, once the river water level can not be decreased, and is easy to form the river flow backward. From the day before yesterday, the Urban Drainage Company has been arranged to pump in the waiting jobs under the overpass, Liu Ting, helpless Liu Ting River water level is too high, or even already overflowing, even open the pumping station, the river will still be kept recharge .
  Ningbo inland water to the Yao River, Fenghua River and other peripheral water discharge can be divided into natural emissions and active emissions, natural emissions is to release on active emissions is to open the pump station drainage.
  In the current Yao River, the Fenghua River water level above the river, sluice impossible situation, the city has opened three along DJ pump, these pumps should be in the urban area of water drained, take some time .

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