On July 1, 2021, the investment, construction and operation of China State Construction Silk Road (Northwest Regional Headquarters) affiliated to China State Construction Group, the planning and design of China State Construction Northwest Institute, China State Construction Municipal Northwest Institute, China Construction First Bureau, China Construction Third Bureau, China Construction The above-ground landscape of the Xi’an Xingfu Forest Belt Construction Project PPP project participated by the Fifth Bureau, China Construction Eighth Bureau, China Construction Decoration, China Construction Installation, and China Construction West Construction was officially opened to the public, and 257 underground commercial sections (Henger Road to Changle Road) were first opened. The opening of the brand added luster to the "Fourteenth Luck".

The project is located on the international cultural exchange axis of the east axis of the "three belts, three axes and three centers" planned by Xi'an City. It is the core area of the new eastern center of the future city. The total investment of the project exceeds 24 billion yuan, the north-south length is about 5.85 kilometers, and the average width is 210 meters, with a total area of about 1843 acres, including: landscape greening, underground space, municipal roads, integrated pipe corridors and subway supporting five business types. It is currently one of the largest underground space complexes in the world and the largest urban landscape forest belt project in China. , The representative project of China State Construction Group's entire industrial chain integrated investment, construction, management and transportation is known as the "urban oasis on the Silk Road".

Decrypt the "old files" of happiness, press the "shortcut key" of happiness

From the beginning of planning, the Happiness Forest Belt project embodies the good wishes of Xi'an citizens for urban life. If you ask what is happiness? So, for the people in the Xingfu Road area of Xi'an, happiness is the "urban oasis" that they have been looking forward to for more than sixty years.

The Xingfu Road area in the east of Xi'an city was once a veritable "Military Industrial City", condensing the memory of Xi'an for more than 60 years. The former "Military Industrial City" ushered in the construction and started again. In 1953, with the assistance of Soviet experts, the Xi'an Municipal Government put forward a clear functional positioning of the Xingfu Forest Belt in the first edition of the "Xi'an Urban Master Plan". A 140-meter-wide, 5.85-wide, 5.85 road was planned between Wanshou Road and Xingfu Road. The kilometer-long forest belt serves as a protective isolation belt between the industrial area and the residential area. The forest belt is named the happiness forest belt.

The wheels of development are rolling forward. The happy forest belt that once carried the glory and dreams of a city has once again ushered in new vitality in the process of urbanization in Xi'an.

The National Fourteenth Five-Year Plan proposes to implement urban renewal actions to promote the resolution of outstanding problems and shortcomings in urban development, and to enhance the people's sense of gain, happiness, and security. The Xi’an Fortune Forest Belt project is a sample of the preservation of the city’s imprint under the background of urban demolition and construction. It is a model project for urban renewal and old city transformation. Its birth gave the ancient capital of Xi’an an excellent "happiness report card". This is the beautiful movement of China State Construction Group to serve the New Silk Road.

Inviting wisdom and ecological city to "string up" the green corridor

The Xingfu Forest Belt project is highly concentrated on important urban renewal projects such as old city reconstruction, subway superstructure, and old industrial upgrading. In order to solve the problems of urban renewal, the Fortune Forest Belt project combines new development concepts, optimizes the land and space development pattern, and creates a model for modern urban construction. Within a land area with an average width of 210 meters, it covers urban pipe corridors, rail transit, integrated commerce, Urban functions such as supporting public buildings and greening of parks have effectively alleviated the shortage of urban land resources and promoted the transformation of the city from extensional expansion to connotative improvement.

For the Happy Forest Belt, green development is not only a problem of understanding, but also a problem of practice. As the largest urban forest belt project in the country, the landscape design of Happy Forest Belt adheres to the ecological priority principle of "forest". The entire forest belt covers an area of 1,134 mu, with a total green area of about 700,000 square meters, planting more than 40,000 trees, and greening. The coverage rate is as high as 85%, which is an ecological barrier and natural oxygen bar to improve the environment in the east of Xi'an.

How can such a large area of green land save water for irrigation? The project plans to build two storage tanks of 6000 cubic meters. The project team introduced German 3P rainwater treatment technology, combined with surface planting ditches, rain gardens, sunken green spaces, etc., to collect rainwater, and adopt comprehensive treatment such as precipitation, filtration, and adsorption. The technology completes the recovery of rainwater resources, which is used for vegetation irrigation and washing tests, etc., to reduce the waste of groundwater resources, improve the function of urban ecosystems and reduce the occurrence of urban flood disasters.

In addition, the project closely integrates municipal roads with urban rail transit, underground parking lots and surrounding bus stations, and integrates multiple modes of transportation. After that, it will greatly improve the traffic capacity and traffic efficiency of the express road network in the east part of the central city of Xi'an, optimize regional traffic, realize a "zero transfer" urban intelligent transportation hub, and truly "string up" the green corridor.

In order to better adapt to the needs of social development and provide more convenient services for the general public and tourists, the Xingfu Forest Belt project plans to have about 7,600 parking spaces, which can greatly regulate the parking order and ease parking problems. It is also connected to various entrances and exits such as subways and transportation hubs.

In such a large parking lot, due to the large space and the large number of vehicles, the driver will spend a lot of time looking for the car when picking up the car, and some even lose their way in the parking lot. This not only brings inconvenience to the driver, It also brings some security risks. Therefore, the project team made a new attempt. According to user needs, combined with new sensor technology, automation technology and geospatial information visualization technology, the smart parking system was introduced, and the IBeacon video probe with parking positioning and reverse car search was used to provide tourists with Smart services such as reverse car search.

It is the small IBeacon video probe, which is like the "neuron" of the brain, making the parking lot smarter. The reverse car search system accurately solves the problem of difficult car search. The car owner can enter the license plate number or parking time in the car search query terminal and WeChat public account query system, and the system can automatically query the parking location of the vehicle and automatically draw the best car search route to guide the car owner to quickly find his vehicle and completely solve the masses Parking troubles.

Advance planning, enjoy the city's "green core"

"Predecessors planted trees, and future generations took advantage of the cool." The construction and development of the city cannot only meet the needs of the moment, and planning with advanced concepts is the "magic weapon" for the comprehensive utilization of the underground space of the Happy Forest Belt.

The Xingfu Forest Belt project advocates the sponge city design concept, giving priority to the use of "green" measures such as grass-planting ditches, rain gardens, and sunken green spaces to organize drainage, with "slow drainage and slow release" and "source decentralization" control as the main design concepts. When it rains, it absorbs water, stores water, seeps water, and purifies water. When needed, the stored water is "released" and used to help enhance the function of the urban ecosystem and reduce the occurrence of urban floods.

The project makes full use of underground space resources, with a development area of 800,000 square meters, and promotes the transformation of the city from extensional expansion to connotative improvement. It is a development model for the intensive use of urban underground space development. There are 23 sinking squares and 34 “raindrops” throughout the project. There is an open space every 100m on average. The sinking plazas and “raindrops” break the depressed and cramped environment of the underground space and introduce sunlight, air and green into the ground. , Create an above-ground and underground hydrogen peroxide bar.

Lighting and ventilation are often the key to the design of underground spaces. The dark and humid characteristics caused by the closure of the underground itself must rely on adequate lighting and ventilation to break people's sense of depression. The happiness forest belt project contains more than 700,000 square meters of underground space, and it is very important to solve the indoor ventilation problem.

Different from the darkness and closure of most underground spaces, the project introduces indoor PM2.5 control technology, fresh air system and other technologies, and plans the ground fissure area as a sunken square, which not only meets the design requirements in terms of structural safety, but can also use outdoor wind direction To enhance natural ventilation and reduce eddies and windless areas in indoor activity areas. It is organically combined with the fresh air system, giving priority to natural ventilation under normal weather conditions. In bad weather conditions, the fresh air system is used to suck outdoor air into the exhaust duct and pass sterilization, disinfection, filtration and other measures before entering the room. This ensures that the indoor air is circulated without losing the cold and heat as much as possible, ensuring that the air entering the room is clean and healthy, creating an above-ground and underground hydrogen peroxide bar, and building China's first green, modern, and smart underground space ecological city.

One grass and one tree, one flower and one scene; innovation-driven and vibrant. With the mission and responsibility of a central enterprise, China State Construction Group expands the happiness space, uses green construction and high-quality services, and fulfills the years-long dream of the ancient capital of Xi'an. The future happiness forest belt will become a new engine and growth pole for the development of the eastern part of Xi’an’s core urban area, creating the strongest ecological belt, livelihood belt and economic belt in the eastern part of Xi’an. Editor/Sang Xiaomei