Recently, the heavy rain of an arise suddenly, bring about Chun Chengkun bright become " water city " : Traffic of the city zone is adjacent break down, the airport leaves a port more than times 2000 the passenger stops, power cut of more than 10000 dwellers. The city such as Wuhan, Guangzhou, appear because of experience rainstorm as much " seascape " . This lets " welcome you to treat the lake " " a city that will swim in water " etc the netizen spoke last year the language of urban waterlogging becomes popular vocabulary once more.
Enter the strong rainfall since summer thisthe most popular norton internet antivirus year, let a lot of cities appear serious waterlogging, also caused certain personal casualty and severe belongings loss. And " city looks the lake " phenomenon, what reflection goes out is history of establishment of urban drain off water " bills due " problem. To administer urban waterlogging problem, the firsthe most popular watch casest ten days of a month allotted housing and ministry of urban and rural construction in July announcement, ask each city weaves and the newspaper sends a city catchment (rainwater) prevent waterlogging plans integratedly.
Stay in those who build a ministry to allot recently " urban drain off water (rainwater) prevent waterlogging plans integratedly to weave outline " (the following abbreviation " outline " ) listed clearly program content, include ability of prevent waterlogging of urban drain off water and waterlogging risk to evaluate, urban drain off water (rainwater) program of system tubal a network. Live build a ministry to still make known his position to say, the rain that strives to complete drainpipe network with 5 years of time corrupt billabong is transformed; Influence time with 10 years, build system of relatively perfect project of prevent waterlogging of urban drain off water.
The personage inside course of study is accepted " daily economy news " when the reporter is interviewed, say, stay in those who build following hair " outline " , it is right urban construction is short in recent years board correct an error, it is to supervise and urge more each district strengthens construction of subterranean drainpipe net, or will pull use the investment of on -727379968.
The program is solved " city looks the lake "
brass faucet" outline " requirement, through taking integrated step, city of municipality directly under the Central Government, provincial capital and city of plan only kind (36 big in city) central the city zone can be effective answer the torrential rain that does not receive under 50 years, the city zone of center of ground level city can answer the torrential rain that does not receive under 30 years effectively, the city zone of other city center can answer the torrential rain that does not receive under 20 years effectively.
" outline " to prevent waterlogging of urban drain off water program goal made rigid demand, produce urban storm sewer namely when the net designs the rainfall of standard less than, the ground is not due and apparent seeper; When the rainfall that produces less than of standard of urban waterlogging prevention and cure, the city cannot appear waterlogging calamity; When producing the rainfall that exceeds level of urban waterlogging prevention and cure, urban movement is basic and normal, must not cause great belongings loss and personal casualty.
Shao Yisheng says secretary-general of association of catchment of Chinese town water supply, want to solve problem of prevent waterlogging of urban drain off water thoroughly, need to carry out and strengthen all of urban water system to plan integratedly, will contact each other originally be risen integthe best selling modern dining chairsratedly by program of water system of program intersected city again however, runoff of much way cooperative control, harmonious solve the urban water supply, catchment, outstanding problem such as waterlogging. It is with Beijing exemple, the catchment ability of the wadi such as the clear river, river that understand benefit is limited, if increase capacity of urban drain off water blindly, once exceed wadi limitation, also can create new issue. Shao Yisheng thinks, stay in those who build ministrwatch case openery print and distribute this " outline " , emphasizing a system comprthe most popular north face shirtsehensive program respect advanced one stride, held the key of the problem. "We should consider how to be discharged already, row to where, should consider how to be used again, the issue that is used where. The city should use the natural condition such as natural river course, laky, flat more, build more sink ground of type greenbelt, water penetration, such is helpful for that strengthen catchment prevent waterlogging, add water supply source of water, also be helpful for rainwater answering filling underground, because exceed the ground that collect groundwater and brings about to sink,solve problem. Because exceed the ground that collect groundwater and brings about to sink,solve problem..
Kunming catchment establishment manages Zhao Saidong of limited company general manager to say, the level of municipal design tubal a network that at present the whole nation uses is " return one year period " standard, lower than circumjacent developed country, the condition that this causes seeper of our country city produces frequency to want a bit taller.
Much city is returned actively " bills due "
Those who written guarantee chummage builds a department " outline " , each district is making up for bills due of urban drain off water actively. Rmodern dining chairsecently, li Wenrong of Kunming city mayor discloses on small gain, be aimed at " 7·19 " the circumstance of Kunming waterlogging, will check to platoon of subterranean conduit one by one, analytic reason, science is rectified and reform.
"Below the guidance of program outline, xiamen catchment (rainwater) prevent waterlogging program is combining this locality actual condition has an authorized strength. Large project facilities, sinkage, wadi should give out for prevent waterlogging establishment obligate space. " Guan Tiansheng of director of assistant chief engineer of academy of design of town planning of mansion retail sales, municipal institute introduces, "Old the city zone will use project sex measure to strengthen more safeguard, wait for means through adding Hong Mingqu of a big pumping station, platoon, promotion discharges big ability; Construction of new developed area should plan through shifting to an earlier date more, do obligate for prevent waterlogging establishment. Do obligate for prevent waterlogging establishment..
According to live the demand that builds a department, in process of urban development construction, should the effect that the oldest rate reduces all of original to the city water system and water environment; Before the integrated runoff coefficient after old city is transformed cannot be transformed more than, cannot increase to have the extra burden of establishment of catchment prevent waterlogging already; When building an area to have sclerotic area, the scale of water penetration ground should not is less than 40% .
According to " 2009 China city builds statistical almanac " statistic, use at the finance sex capital of municipal infrastructure, only 4% investment are safeguarded to drainage system construction in, undertake fixed conserve by standard regulation hard.
"Chinese town changes a course very rapid, but those who face storm water disaster prevent accuse ability to appear very flimsy however, modern city because population and resource density are exorbitant, and the loss that causes flood to cause also is climbed ceaselessly litre. " Kunming city National People's Congress says on behalf of Li Chunguang.
Or will pull use -727379968 investment
Here setting falls, live the town drainage system that builds a ministry to take the lead upgrades transform accumulate Yo is worn tremendous investment opportunity.
According to " daily economy news " reporter understanding, to answer the flood season this year, the city such as Beijing, Shanghai, Chengdu, all increase pair of urban drainage systems to upgrade transforthe best selling watch casesmed investment strength.
Problem of drain off water of our country town basically is construction tubal a network length is insufficient, bring about on thefree watch case low side of standard of major area catchment. Length of pipeline of water of countrywide town average per capita is 0.47 meters, and Germany storm sewer of average per capita 2001 length already was 8 times our country is current. In rain corrupt billabong is made drive below, predict " 925 " during municipal water pipeline will add nearly 200 thousand kilometer newly, total new growth spends catchment conduit relatively " 915 " break up time.
The personage inside course of study predicts, in future 8 years of ~10 year, urban drainpipe of the net upgrade transform, or will welcome on -727379968 yuan of investment. According to not complete count, chongqing planned to complete investment of 22 billion yuan of each irrigation works 2013; And Beijing also puts forward " 925 " during should throw 2.12 billion yuan, build rain basically corrupt the drainage system of billabong, transform cop of cthe best spring poolatchment of central the city zone newlier; And Tianjin water Wu will open up 2013 endowment 10 billion yuan are cast to domain of project of the people's livelihood.
Negotiable securities of the Yangtse River analyses a report to show, china " 925 " total investment of waste pipe net will amount to 244.3 billion yuan. Generally speaking, a driveway builds pipeline of a sewage, can build two corresponding storm sewer additionally to, double accordingly water pipeline investment is sewage conduit investment, occupy the 2/3 that whole catchment plumbing invests namely. From this computative, "925 " during, countrywide catchment conduit always invests to be controlled for 732.9 billion yuan, average and annual one hundred and forty-six billion five hundred and eighty million yuan.
Although had a program, but the thorny difficult problem that financing raises anvancouver to harrison hot springsd uses efficiency to become local government possibly however. A municipal expert tells Tianjin " daily economy news " reporter, capital of urban drain off water belongs to local government administer, local finance is at present nervous, financing is relatively difficult, and time limit for a project of catchment establishment construction is long, get effective slower also, because this appears very easily thunder the state of affairs with big, little raindrop.
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