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Extensive use of permeable bricks, wet shoes on the sidewalk are not wet. No water in residential areas

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更新时间:2018年05月28日05:11:41 打印此页 关闭 Hits: 1832 Updated: May 28, 2018 05:11:41 Print this page Close
下雨时能够渗水,大马路就像海绵相同“吸水”……日前,广州市建造局发布了《广州市海绵城市建造施工与质量验收规范(征求意见稿)》(以下简称《规范》),对城市路途、城市绿洲与广场、修建与小区等的建造作出了基本要求,未来雨天,雨水能“被吃掉”,改进路途积水状况、减少城市内涝;此外,居民区或现雨水花园。 The permeable brick can seep water when it rains, and the road is like a sponge "absorbs water" ... Recently, the Guangzhou Construction Bureau issued the "Guangzhou Sponge City Construction Construction and Quality Acceptance Specifications (Consultation Draft)" (hereinafter referred to as "the specification" ), Making basic requirements for the construction of urban roads, urban oasis and squares, and construction and residential quarters. In the future rainy days, rainwater can be "eaten up", improving road waterlogging conditions and reducing urban waterlogging. In addition, residential areas garden.

sidewalk

"Draft" permeable bricks reduce waterlogging


Speaking of permeable bricks , how much do you know? It can be used for paving on the sidewalk of sponge city. The reporter learned that after heavy rain, the bricks generally have poor water permeability and uneven road surfaces may show water; otherwise, permeable bricks can easily penetrate water.

What specifications do permeable bricks reach? The reporter saw from the "Specifications" that the permeable bricks to be used in urban areas in the future should be made of porcelain, hard ceramics, high-quality concrete pellets, rubber particles, broken glass, etc. In the meantime, the permeability coefficient of these bricks should be More than 0.5mm / s. In other words, according to the national standard of sponge permeable raw materials, one square meter of bricks can reach 0.36 tons of "draft" per hour.

According to professionals, permeable bricks will be widely used in urban areas in the future, not only to reduce urban waterlogging, but also to allow water transpiration to penetrate under the bricks on rainy days, which can improve the surrounding microenvironment and reduce the heat island effect. In addition, the permeable brick also has outstanding anti-slip function and decoration effect, so that citizens can prevent slipping when walking on rainy days.

Regarding urban roads, the "Code" also requires that low-impact development rainwater storage and storage equipment in areas such as urban runoff rainwater drainage channels and roads prone to waterlogging, and submerged overpass areas should be equipped with warning signs and necessary The early warning system should be equipped with anti-scouring equipment at the water intake of urban roads to prevent damage to public safety.

Residential area

The rain garden will appear in the future

In rainy days, it can store rainwater and reduce flood peaks; in the dry season, it can provide resting places for flowers and birds. This is the rain garden. The "Specifications" requires that in the future oasis in Guangzhou, sinking oasis should be set according to the terrain, and the rate of sinking oasis for new roads and residential areas should not be less than 50%.

According to professionals, rainwater gardens are similar to sunken oasis. Rainwater is purified through the combined use of plants and sand, and gradually penetrates into the soil, repairs groundwater, or replenishes urban water such as scene water and toilet water. In addition to being useful for rainwater infiltration, it can also effectively remove suspended particles and organic pollutants in the runoff, while providing an outstanding resting environment for vegetation, insects and birds.

It is reported that in the future, rainwater garden plants will preferentially select native plants with a certain degree of tolerance to waterlogging, and use a variety of community structures including arbors, irrigation, and grasses.

Roll out the sponge construction concept next year

It is understood that the Haicang Xianglu Primary School in Macao Bay is the first project of Guangzhou's "Sponge City" to be completed. In Xianglu Elementary School, there are a total of 400 square meters of sunken oasis, and 11 water storage tree ponds are buried inside. In addition, there are many rain gardens scattered throughout the school. Green plants can not only absorb rain quickly, but also purify pollutants in the rain. The ground and playground in the campus can also “absorb water”. Within one hour, it can absorb about 1.1 tons of rainwater per cubic meter.

In addition to the construction of the Maicang Pilot Area in Haicang and the Pilot Area of Xiang'an New City, the concept of sponge construction will be fully rolled out in the city next year, including the integration of nine streams outside the island, and the reconstruction of old urban areas. The planning requires that by 2020, the sponge construction share in built-up areas should be no less than 20%. In recent years, the city's economy has developed rapidly and the urbanization rate has continued to increase. Along with this process, a lot of construction and discarded materials are also produced every year, but the main city has about 3.5 million tons. Yesterday, the Chongqing Times reporter learned from the City Sanitation Group that our city has recently officially put into operation two construction waste materials plants, which will process the waste materials to produce environmentally-friendly recycled building materials. 1.4 million tons of construction waste materials can be recycled every year. It has been used in many municipal projects in our city.

Two construction scrap plants have been formally put into operation recently

The relevant person in charge of the Municipal Sanitation Group said that in the main urban area, the administrative area constraints were broken, and 4 modernized construction plants for the recycling of waste materials were placed.

Now, after the trial operation of Yubei Heishizi and Nan'an Guangyang Construction Spoil Factory, they have been formally put into operation recently. In 2020, the city will also build two plants for the construction of waste resources in Banan and Shapingba.

Blind road bricks and permeable bricks have been used in many places

How can these construction waste be reused? Yesterday, a reporter from Chongqing Times went to Hebei, Yubei to build a scrap plant to watch the scene.

The relevant person in charge of Chongqing Yisan Environmental Protection Technology Co., Ltd. introduced the construction of a waste material recycling plant in Heibeizi and Nanyang Guangyang, using abandoned bricks, concrete, wood, pipes, asphalt, etc. to construct waste materials, produce aggregates, Standardize new environmentally friendly renewable building materials such as bricks and permeable bricks, and rank first in the nationwide treatment planning. The Ministry of Housing and Urban-Rural Development of the People's Republic of China plans to implement Chongqing as a processing and processing method.

He also introduced that in the municipal construction of Banan District, Jiulongpo District, Yubei District, and other districts, bricks such as blind road tiles and permeable bricks that have been produced have also been used; the sidewalk reconstruction of Central Park and Yubei Middle School, etc. , Also used this kind of construction bricks produced again.

Yesterday, the Chongqing Times reporter also learned from the City Sanitation Group that our city will build five major regional kitchen waste collection and transportation treatment systems, and set up 7 kitchen waste area treatment centers in 7 regional center cities, including Qianjiang and Fuling in Chongqing. Uniform collection, transportation, and processing of restaurant and kitchen waste will be implemented across districts and counties. Meanwhile, the Qianjiang Food Waste Treatment Plant has begun construction, and the Fuling Food Waste Treatment Plant is under planning.
Residents feeling

The stagnant water is gone, and I won't be afraid to go out again in the rain

Haicang Majiu Bay is one of the two pilot areas for the construction of Xiamen's two sponge cities, and has now completed the demonstration projects of two campuses, one hospital, five roads and six landscaping projects. In the meantime, the two primary schools carried out the reconstruction of rainwater outlets, rainwater risers, and drainage ditches, and added various forms of sunken equipment to the original landscaping, such as planting ditches, pebbles belts, biological retention belts, and rainwater gardens.

Haicang Ershi Primary School is one of two campuses. The principal of the school, Yu Dingbin, said that after the renovation, there is no more water on the campus, and rainwater can be collected for garden irrigation. The landscaping has been further improved, and the campus has become more beautiful. What he waits most is to compile the construction content of the sponge city into a school-based The course leads students to establish respect for science and advocating natural ideas.

Xiayang Primary School is another completed primary school. Upon entering the school gate, there was a piece of colored asphalt. A student informed the reporter that once it was on a concrete floor, water would collect on every rainy day. Since the peculiar bricks were laid, the ground looks wet on rainy days, but it doesn't collect water. It is really the same as a sponge.

In addition to the pilot area, now Haicang is also constructing sponge cities in the entire administrative area. For example, Xiamen Children's Park parking lot, free trade pilot area square and other non-pilot areas have also undergone reconstruction and improvement of sponge cities. In addition, seven roads, including Haida Road, Canglin Road, and Cangxiang Road, in the Haicang living area have also been transformed and improved. "I will never step on the mud and go home, and I will never be afraid to go out again in the rain." Resident Ms. Wu said excitedly.

Development policy

The sponge concept will run through all stages of city construction

The reporter learned from Haicang District that, next, Haicang will internalize the construction of the sponge city into the city's operation and management concepts, rather than a simple skill and the implementation of a number of projects.

In detail, in the process of promoting the construction of the sponge city, we will also attach importance to internalizing this concept in the construction of all stages of the city. In particular, all new construction, reconstruction, and expansion projects must implement the requirements for sponge city construction. Meanwhile, regarding land transfer, the requirements for construction of sponge city projects will also be included in the explanation of bidding and auction.

In addition, Haicang District plans to establish a sponge city construction industrial coordination center. After exploring modules such as soft power development, capital operation, and hardware equipment construction, it will open up sponge city independent innovations, collaborative innovations, and skill innovations, which will be useful in the construction of sponge cities. The problems encountered provide all-round services for the expansion of the "sponge city +" industrial chain.

It is worth mentioning that Haicang has now begun to compile the nation's first sponge city construction school-based curriculum for elementary and middle school students. The natural teachers in the campus of the Haicang sponge city pilot zone have participated in the whole process, and now over half of the mission has been completed . Soon, sponge city knowledge will be incorporated into the natural lessons of elementary school. u=3257526324,607361566&fm=27&gp=0_meitu_14.jpg
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