origin: Qilu one point Author: Reporter Wang emperor's emperor's
facing the scarce soil and land resources, urban traffic congestion and so on, many The city has turned its line of sight from the ground to the ground. At present, the utilization of underground space in Ji'nan is still in its infancy. In the future, how to make use of the underground space in Ji'nan? 7, Ji'nan Municipal Committee of the Chinese people's Political Consultative Conference (CPPCC) and the director of the Ji'nan Municipal Public Utilities Bureau, Wang Jilin, suggested that the underground space should be planned and used as a whole.
Industrial North Expressway Construction has carried out underground stratified development, shallow layer of underground comprehensive pipe corridor construction.
the use of underground space should be considered as "Quan Quan" and "Wen Bao
for Ji'nan, the significance of underground space planning is to reserve space for underground development. The person in charge of the Municipal Office of the Ji'nan Municipal Planning Bureau said that from the principle of exploitation and utilization of underground space, the order of use in general is in turn: Infrastructure (municipal, underground comprehensive corridor, etc.), disaster prevention, parking and so on, and the rail transit has a separate underground space. At present, the most frequently used underground space in Ji'nan is parking.
in fact, as early as the beginning of last year, Ji'nan started the planning of the development and utilization of underground space in the main urban area. At present, the planning has been in the middle stage. How to coordinate the development and protection of underground space is the key and difficult point of this plan. In the subsurface transportation system, underground municipal and comprehensive corridor, underground public space, underground disaster prevention, underground logistics and other sub system planning, fully consider the spring water and ecological environment, historical and cultural protection and other factors, co-ordinate the related planning of the sponge city and take into account the function of civil air defense. "
" the underground world of Ji'nan is more complex. We should consider both the conservation spring and the cultural relics protection of the famous historical and cultural cities. It is necessary to scientifically demonstrate the amount of resources available in the underground space, where can be used, where can not be used, where can be used limited. The person in charge said that Ji'nan is currently building sponge City, and the sponge city requires the road to "harden" to ensure that the rainwater is better leaking underground. From this point of view, the development and utilization of underground space is conflicting with them, so we must do well in the development of underground space.
"in addition to these, we should also give full consideration to the planning of the development of the above ground space, and do well in planning the underground and underground areas." "We do not advocate doing business in the underground space, unless it is special requirements for special plots, such as CBD, the location of the area and the comprehensive planning of the space on the ground, and business in the underground," the person in charge said. The experience of underground space is not enough, and the air circulation is not good, which determines the limitations of business. "The development and utilization of underground space is different from that on the ground. Once the construction is' irreversible ', it must be proved and prepared in one step.
Industrial North Expressway Project
space utilization is divided into three layers
although underground space utilization in Ji'nan is still in its infancy, there are still a lot of references. Taking underground pipe gallery construction as an example, by integrating underground pipelines, the ground excavation and repeated construction can be reduced, and the ability of urban municipal services can be improved. The industrial North Road, which is under construction, has undertaken the underground development. The construction of the expressway and the R3 line of the subway are carried out in their own layers. At the same time, the construction period should be coordinated and promoted simultaneously without affecting each other.
there are about 4.5 kilometers of overlap between the industrial North Expressway and the rail transit R3 line between the happy Liu Lu Road and the dam King Road. The rail transit line is in the north half of the fast lane. At the same time, the whole line of 13.2 kilometers is needed for the construction of a comprehensive underground tunnel. The underground space along the industrial North Expressway has become particularly intense. How to arrange the overall arrangement has become the key to the construction.
for the better development and utilization, the project first introduces the concept of spatial layering, divides the road space into three layers, and carries out the layout of functional facilities. Among them, the fast road and ground road are arranged in the ground space to meet the demand of public transportation, motor vehicle traffic and slow traffic. The underground shallow layer space layout directly buried pipelines and comprehensive pipe corridors meet the needs of supporting supply. The underground deep space is arranged for rail traffic, and the underground road and deep drainage tunnel space are reserved for the future development. It is possible to stay.
it is introduced that the current track R3 line is in the deep underground space. In addition, underground roads and deep drainage tunnel space are reserved in the deep underground space of the South half. These two reserved spaces are not built during the construction of the expressway. In the future, according to the development needs of the surrounding cities, once the road space is insufficient, we can use the shield method to build two-way four lane tunnels.
industrial north road is located in the low-lying area of northern Ji'nan. The road construction has taken into account the problem of water accumulation. Once the drainage problem appears in the future, it is possible to set up the deep drainage tunnel space of 8 meters in diameter in the deep underground space.
CBD four large underground space to improve the efficiency of land use
CBD underground public space development of central business district, combined with rail transit construction, underground Ring Road, comprehensive corridor, municipal gravity rain water tank culvert and 3 core underground energy stations and other projects, joint development and construction. CBD underground public space has a sinking square, at the same time, as well as the underground layer of the subway and the basement of the commercial layer. It is used as the underground two layers of underground parking space. Within the scope of the underground public space, the track traffic has M1 line and loop line. For the construction of the rail transit line, the underground public space will keep in sync with it.
it is understood that Ji'nan CBD occupies an area of about 3.2 square kilometers, and the development area of underground space reaches nearly 2 million square meters, which is equivalent to the size of 9 Quancheng Square.
the responsible person of the Ji'nan Municipal Planning Bureau said that the excellent design and development of the underground space is an important way to improve the efficiency of land use and improve the quality of the urban space. "Through scientific planning and design, Ji'nan will have the first and the world's advanced underground space system." The person in charge said that in the "underground world" of Gao Dashuai's CBD, there are both rail traffic, underground Ring Road, commercial development, parking matching and comprehensive corridor, covering all the known underground engineering technologies in the country and in the world. In terms of difficulty and complexity, it is absolutely unprecedented in China.
it is understood that CBD from top to bottom is the underground public space, comprehensive corridor, underground Ring Road, parking lot and two layers of underground space system. Some of them are interlaced in the same layer, some are three-dimensional distribution at different levels, it may be said to be wrong, compact and reasonable. Ji'nan City Planning Bureau responsible person said, CBD underground world described is that the ground "quiet lotus dance willow", underground "have a hole".
reporters learned that the underground space of Ji'nan CBD will start construction in the first half of this year. At the same time, CBD "three vertical and three horizontal" and rail transit loop infrastructure are also accelerating construction.