Beijing has about 70 overpass near the lows below the river

Beijing city last year to water 75 overpass rainwater pump station renovation, one of the important measures is to create a strong "artery": pressure drainage pipeline. Yesterday afternoon, a reporter from the Beijing drainage group and media briefing was informed, in the storm, river water submerged outfall, the pipeline can still normal drainage, and prevent water intrusion.

pressure drainage

river has also is not afraid of

it is understood, Beijing has about 70 overpass near the lows below the river, such as the lowest point Anqumen bridge than next Tonghuihe low three or four meters, increase the risk of flood bridge area is the water Cheap Blackhawks Jerseys intrusion.

report accordingly before, for Xizhaosi Anqumen bridge area of the drainage pumping station, the water pump is used to bridge under water through the open side ditch into the Tonghui river. In 2012 "7· 21" storm that night, because of soaring over Tonghuihe water, drainage mouth height, which can not be normal drainage pumping station, resulting in serious water.

Beijing drainage group project department minister Zhang Jun said, before the storm, if the river rose over the drainage pumping station, not only not draining properly, will cause the water of the Cheap Avalanche Jerseys river along drainage lines intrusion into the bridge area.

Zhang Jun introduced, pressure drainage pipeline with the transformation, in addition to water inlet and a water mouth all closed, pumping station pumps will rain "hit" into the pipeline, and the pressure in the pipeline, even if the river flooded the drain, the water in the pipes can be discharged into the river, and does not generate intrusion. "Hydraulic pressure drainage pipeline" enough to get washed up on 20 meters Cheap NHL Stanley Cup Jerseys high. "If it meets the '7· 21', we are confident that the bridge area including Anqumen bridge, not seeper."

pipeline reconstruction

drain metal tube

Zhang Jun introduced, transformation is the main will open drain and drain, replaced by a large diameter metal pipe. If the pump from the river near, full use of pressure pipeline pump station, if the river is relatively far distance, will use the half with pressure, "is to find a way to high, Cheap Women NHL Jerseys water pressure over the top, then flows into the river water weight."

and Zhang Jun said, with the pressure pipeline diameter increment than the original drainage ditches, the average transformation of a pressure pipeline, need to change around 10 pipelines. "Multiple unit teshiteban, carries on the transformation to the pipeline."

for pressure pipeline would improve the river water level, increase the difficulty of downstream flood control, Zhang Jun said, the river is pressurized drainage pipeline drainage quantity is small, not too much pressure on the river flood control.

Follow up

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After

transformation of pumping lift capacity doubled

75 block rain water pumping station before the end of next year to complete the transformation

according to the introduction, the 75 seat sinking reconstruction of rainwater pump station overpass, including the Lotus Bridge, Anqumen bridge, Dongzhimen bridge Cheap Jets Jerseys etc.. Transformation in three years to implement, which last year 20, this year.