Construction of different cities -- Exploration and practice of Pudong Lingang sponge City

According to Pudong New Area news: let the city like a huge sponge, can absorb water, water storage, seepage, water purification, the construction of sponge city in the vicinity of the city, not only in the "face" on the good, but also "lining" project.
The Lingang area, built by the sea, is turning into a huge sponge".
Recently, the construction of sponge city in the port area handed over the first answer sheet, including the renovation of the F District in the new reed yard, the 80 meter landscape zone along the lake and the E1 area, including the completion of the first phase of the project.
Sponge City, is a new generation of city stormwater management concept, in simple terms, is to let the city like a sponge, when it rains, water storage, water seepage, water purification, water storage will need to "release" and be used to become more "elastic relationship between water and city".
In 2016, the implementation of the sponge city of Shanghai was officially implemented. Pudong Lingang area is one of the largest 30 pilot areas in china.
How to complete the sample project? Can it bring significance to other sponge city construction?
The runway is also strong enough to absorb water
The first model project covers the sponge type area, sponge type green, sponge type road, river remediation and ecological restoration and sewage treatment plant mentioned standard, has certain popularization value and can be replicated on future projects.
Offshore 80 meters, a total length of nearly 1 kilometers of drip lake around the landscape demonstration section, in April 29th officially opened to the public. Just past the "51" small holiday, the "Lake Park" has received more than 13 thousand visitors.
As one of the first phase of the project, 80 meters around the lake landscape demonstration section, "Yan value" quite high.
Looking ahead, the ups and downs of the lawn drops, various flowers form a square color embellishment. Tree lined, Binhu trails, pedestrian trails, jogging Ring Road, such as three different styles of winding trails around the lake.
"Pour a cup of water up and it can be absorbed immediately."." Cui Ziping, general manager of Lingang New Town Construction Project Management Co., Ltd., pointed to the runway. Both the blue asphalt slow track, or air brick paved trails, have a strong water absorption function.
In fact, seemingly with the general park is no different from the landscape, everywhere hidden mystery".

"The whole landscape is actually flying high." Cui Ziping said that if you look carefully at the trees planted on the trail, you can find the secret. This design is designed to improve the permeability of the pavement".
Walking in the landscape belt, but also found large and small ecological wetlands, yellow irises reflected in the clear water, do not have a mood. The arrangement of ecological wetlands is not just "good looking", but different types of aquatic plants are planted, which has the function of "clean pond". Rainwater in the wetland after natural purification, and then slow infiltration, not only slow down the seepage pressure per unit time, but also play a role in protecting and improving the water quality of drop lake.
Compared to the "80 meters" landscape belt demonstration section of the "dazzling", the same as the first phase of the project, one of the new Lu Yuan F district renovation project is more restrained".
Into the District, in addition to some new brush walls, if not carefully observed, it is difficult to find some small place "sponge" signs.
In several residential buildings on the wall, a number of new pipelines to fill the sewage diversion function. Some garden "long" high, a paved soil and pebbles "high flower", from decontamination triage pipeline in the rain; some other garden became shorter, into a "rain garden", when raining on the water purification and storage adjustment.
There are 218 square meters of underground water storage facilities and 12 square meters of storage and purification facilities, with the completion of the project has been "deep buried" ground floor. However, some careful residents found that the district's lawn "long" out of several low white "breathing mouth."". These are to ensure that "light rain is not wet shoes, heavy rain is not stagnant water" of the sponge transformation.
The first model projects a total of 4, involving the cavernous cavernous area, green space, water remediation and ecological restoration and sewage treatment plant mentioned standard, covering all aspects of the port city of sponge pilot "source reduction, process control, system management. The effectiveness of project projects and the leading role of demonstration have been fully affirmed in the recent performance evaluation of the national Ministry of housing expert group.
"The first model project selection, partly due to the construction of timing considerations, on the other hand also specially selected various types, have a certain value and can be replicated on future projects." Shanghai municipal engineering design and Research Institute, sponge City institute assistant engineer Chen Tao said.
He introduced, in the traditional drainage concept, the rain to the ground, directly through the pipe network into the river, and sponge City advocated not "quick platoon", but "slow row"". Through take the "infiltration, stagnation, storage, net, and other measures, play buildings, roads and green spaces, water ecological system of rainwater infiltration and absorption, slow release effect, effective control of stormwater runoff, realize natural accumulation, natural infiltration, natural purification.
In simple terms, the sponge city construction is not only to solve the drainage problem also has both water ecology and water environment requirements, our ultimate goal is the premise to ensure water security, achieve ecological friendly, suitable habitat." Chen Tao says.
The aim is to benefit the masses
The difficulty of sponge city construction is not technology, but material innovation, systematic design and concrete project implementation. In promoting the implementation of the first phase of the project, the port has accumulated under the experience can be copied.
The construction of the port area to the port city of sponge City, Lingang forest one, Lingang international logistics park and Luchaogang community sector, the pilot area of 79 square kilometers, including 7 demonstration areas, 15 projects, more than 100 specific engineering package.

How to build a sponge city?
In order to better promote the construction of sponge City, Lingang Administrative Committee under the construction and environmental protection office under the "sponge office", and set up a port area sponge city construction leading group. "Sponge office" is responsible for the whole sponge city construction co-ordination, building environmental protection office, is responsible for the construction of sponge city indicators, norms and the entire process of supervision and management.
Technical support, CMC harbor commissioned by the Shanghai Municipal Engineering Design Institute and Shanghai survey and Design Institute as a "consultant", to promote the relevant technology of the construction of the port area of the city of sponge, and management guidance for all pilot regional projects.
In November 2016, the "special plan for sponge city in Shanghai port pilot area" and the implementation plan for three years were introduced, and the construction requirements and planning control index of sponge city in Lingang area were defined. At the same time, in accordance with the regulatory detailed planning, urban planning, construction and other related departments in the construction land planning or land leasing link to sponge city related targets and indicators to be reviewed and approved. In order to strengthen the management and control of the project, the port management committee has established the whole process control of planning and design, fund management, index control, project approval, project construction and operation management.
"With the organizational structure, system arrangement, we have also issued a series of documents, such as the approval of the Interim Measures for the administration of funds, the construction of a port city sponge pilot area management measures and management measures, to ensure the smooth progress of the construction of the sponge city." Lingang Administrative Committee Construction and Environmental Protection Office of Feng Wenqing said.
In promoting the construction of sponge City, departments and units have a clear division of labor, responsibility to people.
Feng Wenqing introduced, according to the three year implementation plan, at present, the port area sponge city construction each project has implemented the responsibility main body, is responsible for the project construction. In the process of design and construction, the projects follow the principle of suiting measures to local conditions and each has its own characteristics.
For example, around 80 meters landscape with a demonstration, in order to meet the requirements of flood control, good ecological and landscape design of waterfront, by internationally renowned engineering design company is responsible for the overall design, according to the natural and ecological theme.
Some replicable experiences have been excavated and summarized in the progress of the project.
"We are not in order to make the city and sponge sponge, but through in the construction of the cavernous financial needs, and finally let the people truly benefit the residents." Shanghai Nanhui new town development and Construction Co., Ltd. planning and construction Gu Yunxiong, deputy manager of the Department said.
Nanhui Shanghai new town development and Construction Co., Ltd. is the new yuan court F district construction units. The reconstruction project has won a good reputation among the residents.
Since the new reed garden is a resettlement and resettlement of the old district, there are water seepage, rain, sewage, mixed platoon and so on. In the process of promoting the construction of the project, the company has repaired the wall and re laid the sewage diversion pipeline for some buildings in the residential area. The first batch of 12 parking spaces in the sponge transformation, has become the most popular residents of the project. Residents continue to say, hope to promote as soon as possible. "Because this is the livelihood of the people are closely related to practical things." Gu Yunxiong says.
In the establishment of landscape design, the company through neighborhood committees, industry committees, questionnaires and other forms of investigation of the views of the surrounding residents. In the process of transformation, some residents raised in front of Planting Effects of light "," some residents want the trees at home, once residents appeal, company will promptly communicate with residents.
"Initially worried about construction noise and other issues will cause residents complaints, but more than a month of the transformation process is very smooth, and has been actively cooperate with residents." In Gu Yunxiong's view, this is precisely reflected in the transformation of the old district, fully consider the importance of the needs of the people".

Feng Wenqing said, in fact, in the process of city construction in the sponge, years thanks to domestic and foreign research, engineering and technical difficulties on the main difficulty is not much, or in terms of innovation, the systematic design of materials and the implementation of specific projects etc..
Sponge concept implantation development process
The construction of sponge city in Lingang area will eventually form a natural ecological spatial pattern of "one nucleus, two rings, six wedges and more pieces".
The special plan of sponge city in Shanghai Lingang experimental area puts forward the overall objective of promoting the construction of sponge city in the city, starting from the construction of sponge city in the demonstration area, accumulating experience and exploring patterns.
Planning end of the year, the planning area will be fully implemented "5 years, one time rainfall, no water, 100 years without rain, waterlogging, water is not black, smelly, heat island mitigation" overall goals. By 2018, the effect of sponge city construction in pilot areas should be effective.
Planning the pilot area is divided into seven sponge Construction Demonstration Zone, respectively demonstration lake water ecological protection, business district sponge construction, ecological corridor stormwater purification, has built the city of sponge renovation and construction of ecological protection in reclamation area of urban construction, and the use of sponge, the old city transformation and the comprehensive management of water and water content. The specific types of projects include parks and green spaces, buildings and residential areas, roads and plazas, water system renovation and ecological restoration, pipe network construction, waterlogging control, etc..
Chen Tao introduction, Shanghai has a high groundwater level, land utilization rate is high, the high percentage of impervious area and soil infiltration rate of "three high and one low" characteristics, but also need to meet the local port coastal flood control and drainage, improve the water environment pollution etc., which has a typical sponge City construction.
As a new city, the port has the condition to implant the sponge idea into the whole city's development and construction." Feng Wenqing said, "at the same time, should be strongly requested by the Ministry of housing, the transformation of the old city has also been incorporated into the" port city of sponge "an important part of the building."
How to use 3 years to sponge City initial success? In Feng Wenqing's view, the unique administrative advantage of Lingang has played an important role. "Our plans, the examination and approval office, and the construction of environmental protection departments can bring together the overall advantages, so that the problems encountered in the project will be solved quickly and efficiently."."
According to the plan of action for three years, the construction of the port area to the main city of the 2016 sponge system design, to create a number of model projects; the 2017 goal is 70% of the project started; at the end of 2018 to the Ministry of housing assessment. "The hardest job is this year."." Feng Wenqing says.
In addition to promoting the 70% projects started outside the "sponge office" this year will focus on water ecology, water safety and water environment research, mining early experience, forming a theoretical text reference, play the exemplary role in pilot areas.
The construction of sponge city has a unique advantage in Lingang area. Cui Ziping introduced, the main city of the drainage facilities in the vicinity of the basic conditions better. In previous years several rainstorm test, has not occurred the main city area large area water accumulation situation.
But at the same time, the reform of sponge faces the problems of serious salinization of soil and high water table in Lingang area. "But we are translating these disadvantages into experiences and features, such as moving forests, soil salinization, improvement projects, etc.." Feng Wenqing introduction.
What will the "big sponge" of the East China Sea be like at last? According to the plan, "big sponge" will form a "core, two ring, six wedge, multi piece" sponge city natural ecological space pattern.
"One core" means the water ecological sensitive core, its function is the protection of the ecological environment, maintain and improve water quality; the peripheral ecological ring two ring corridor and includes Lingang forest belt in Yuhuan City Park belt, its function is regulating and ecological purification; "six wedge is a wedge-shaped green to orange yellow green blue purple the six rivers and the surrounding green space form, its function is mainly play the ecological purification, runoff pollution interception, strengthening the purification effect;" multiple "refers to the focus on the construction of the main space pilot area, in accordance with the requirements of sponge city construction, city construction is one of the key control of the future.
Flood season is approaching, the port is stepping up efforts to promote the river excavation projects. "The present job is like doing a jigsaw puzzle, putting all the project together, and finally assembling it into a relatively large sponge."." Feng Wenqing says.