In February this year, a news from the Ministry of Housing and Urban-Rural Development attracted widespread attention.
According to statistics, the length of water supply pipelines in cities across the country has reached 1,103,000 kilometers, the length of drainage pipelines is 913,500 kilometers, the length of natural gas pipelines is 980,400 kilometers, and the length of heating pipelines is 493,400 kilometers.
If the renovation is carried out at a rate of 100,000 kilometers per year, the project will last for more than 30 years.
So why did the state suddenly make up its mind to carry out underground realignment, and what are the benefits of doing so?
The status quo and benefits of underground pipeline retrofits
The renovation of underground pipelines in mainland China is an important municipal project, which aims to improve the quality and safety of urban infrastructure and meet the needs of modern safety, environmental protection, energy conservation and quality. There are many types of underground pipelines, including water supply, drainage, gas, heat, electricity, communication and other types of pipelines, which are interwoven into a network to jointly support the operation and development of the city.
In recent years, remarkable progress has been made in the reconstruction of underground pipelines in mainland China. The government has made it clear that it will renovate more than 100,000 kilometers of underground pipelines every year, which is a huge project with a wide range of aspects, which will have a positive effect on improving urban infrastructure, stimulating domestic demand and employment, activating the market and stimulating the economy.
In the specific implementation, all localities have formulated corresponding transformation plans and programs according to the actual situation. For example, some cities focus on promoting the management of internal drainage networks in the main urban areas, while others are committed to the renewal and renovation of gas pipelines or the aging and renovation of urban gas pipelines. At the same time, the application of new technologies also provides more possibilities for the transformation work, and the application of new repair technologies such as trenchless repair technology has improved the repair efficiency and quality.
In addition, the renovation of underground pipelines is not only related to the improvement of urban infrastructure, but also closely related to public safety, resource utilization and sustainable development. Through large-scale underground pipeline transformation, it can solve the problems of leakage, pipe bursting, and supply interruption caused by old pipelines, reduce potential safety hazards, and also provide strong support for the construction of new infrastructure such as smart city construction. At the same time, this is also an important part of the integration and optimization of urban underground space resources and the promotion of the construction of underground comprehensive pipe gallery, which will help to achieve sustainable development of the city in the long run.
In general, the transformation of underground pipelines in mainland China is a complex and important project, which requires the joint efforts and cooperation of the government, enterprises and all parties in society. With the deepening of the renovation work, it is believed that the quality and safety of urban infrastructure in mainland China will be further improved, laying a solid foundation for the sustainable development of cities.
Difficulties in the transformation of urban underground pipelines
The difficulties in the transformation of underground pipelines are mainly reflected in the following aspects:
1. There are many types of pipelines and they are dense: underground pipelines include water supply and drainage, gas, heat, electricity, communication and other types, and these pipelines are staggered in the urban underground space, with a high density. Therefore, when carrying out transformation, it is necessary to accurately grasp the location, direction and burial depth of various pipelines to avoid damage to other pipelines during construction, causing unnecessary losses and potential safety hazards.
2. The underground environment is complex and changeable: the construction environment of underground pipelines is complex, which may be affected by various factors such as geological conditions, groundwater level, and soil pollution. These factors not only increase the difficulty of construction, but also may pose a threat to the stability and safety of the pipeline.
3. The condition of old pipelines is unknown: some old pipelines have a long service life and may have problems such as corrosion, aging, and leakage. Due to incomplete or missing historical data, it is difficult to accurately grasp the actual condition of these pipelines, which brings great uncertainty to the renovation work.
4. Limited construction space: In the central area of the city or in the old community, the construction space is very limited due to the narrow roads and dense buildings. This not only restricts the use of construction machinery, but also may affect the normal life of surrounding residents.
5. Difficult coordination: The transformation of underground pipelines involves the interests of multiple departments and units, such as water supply, power supply, gas, communications, etc. In the process of transformation, it is necessary to coordinate the interests of all parties to ensure the smooth progress of the transformation work. At the same time, it is also necessary to communicate with surrounding residents and merchants to reduce the inconvenience caused by construction.
6. Backward technology and management methods: At present, some areas still use traditional manual methods in the management of underground pipelines, and lack advanced detection technology and information management systems. This leads to inaccurate pipeline data and untimely updates, which brings great difficulties to the transformation work.
In view of these difficulties, a series of measures need to be taken to solve them, such as the introduction of advanced BIM technology. BIM technology has huge advantages in underground pipeline transformation.
First of all, BIM technology enables 3D visualization and information integration. This makes the design, construction, and management process of pipeline retrofits more intuitive and efficient. Through the BIM model, relevant personnel can clearly understand the layout, direction, buried depth and other information of the underground pipeline, and effectively avoid pipeline collision and damage problems that may occur during construction. At the same time, the BIM model can also integrate detailed information such as the material, size, and connection method of the pipeline, which is convenient for managers to carry out later maintenance and management.
Secondly, BIM technology improves the accuracy and efficiency of pipeline transformation. With the BIM model, pipeline modification plans can be accurately simulated and optimized, reducing the possibility of design changes and rework. In addition, BIM technology can also realize automatic calculation and data analysis, and improve the design quality and construction efficiency of pipeline transformation.
Thirdly, BIM technology helps to reduce the risk and cost of pipeline retrofits. In the process of pipeline transformation, collision detection and risk assessment through BIM models can detect potential safety hazards in time and take corresponding preventive measures. This can not only reduce safety accidents during construction, but also avoid losses such as water outages and power outages caused by pipeline damage. At the same time, BIM technology can also optimize the construction plan of pipeline transformation, reduce unnecessary material waste and labor costs, and reduce project costs.
Finally, BIM technology promotes the collaborative management of pipeline transformation. Through the BIM platform, all participants can share the progress, quality, safety and other information of pipeline renovation in real time, and realize collaborative design and construction management. This helps to enhance communication and collaboration between all parties and improve the overall efficiency and quality of pipeline modifications.
In short, BIM technology has many advantages in underground pipeline transformation, which can improve the design accuracy, construction efficiency and management level of pipeline transformation, reduce risks and costs, and provide strong support for the rational utilization and sustainable development of urban underground space.
Underground pipeline modeling software
道路设计BIM软件OpenRoads Designer
OpenRoads Designer is a full-featured, fully detailed design application for surveying, drainage, subsurface, and highway design, covering all the features previously available through InRoads, GEOPAK, MX, and PowerCivil.
OpenRoads Designer is versatile and can be used in all phases of various types of civil engineering projects, from large projects to small projects, for users of any level of expertise. It can easily handle a variety of complex tasks, including overpass design, roundabout design, land development, sewer and stormwater network design, and construction risk reporting.
Software Details: OpenRoads Designer | Meet the needs of the whole life cycle
Ai 3D PNL component library management plug-in (municipal underground pipeline library)
Ai3D PNL component library management software is a localized underground pipe network design tool developed based on CNCCBIM OpenRoads platform.
The software can directly import the nodes of the domestic localized municipal pipeline engineering and ancillary facilities atlas into the underground pipe network library of CNCCBIM OpenRoads software for users to call directly. This not only greatly improves the work efficiency and quality of the underground pipe network project, but also promotes the intelligent construction speed of the underground pipe gallery.
Plug-in details: Ai3D PNL component library management software | 1100+ standardized nodes of underground pipe network
Case of intelligent construction of underground pipe gallery
Background of the case
Tianhe Wisdom City Underground Comprehensive Pipe Gallery Project is a pilot project of the national comprehensive pipe gallery, the project is mainly along the current situation of Keyun Road, Kexiang Road, Huaguan Road, Hengsan Road, Hengwu Road, proposed Yunxi Road, Kemulong South Road ~ Gaotang Road, Gaotang Road South Extension, Software West Road, Mupi West Road, Lingcen Road, planning Hengqi Road and other layouts, with a total length of about 19.4 kilometers, including 8.6km of shield pipe gallery (outer diameter φ6.0m), open cut pipe gallery (outer frame BXH=3.7~4.6X5.9~). 14.4) 10.8 kilometers, with 1 control center. In addition to the shield pipe gallery, other pipe corridors are included in sewage and gas.
Project BIM modeling content
There are 11 comprehensive pipe corridors in this project, with a total of 19.4Km. It is divided into shield pipe gallery and open-cut pipe gallery.
1. Cut-and-cover comprehensive pipe gallery project
The cut-and-cover comprehensive pipe gallery project, with a total length of 10.8Km, is: Kemulong South Road, Gaotang Road, Hengsan Road, Software West Road, Hengwu Road, Yunxi Road, Mupi West Road, Hengqi Road, Lingcen Road
2. Shield comprehensive pipe gallery project
The shield comprehensive pipe gallery project, with a total length of 8.6Km, is: Kexiang Road - Huaguan Road, Keyun Road.
Part of the modeling content is displayed
Composite pipe gallery mulch
Comprehensive pipe gallery route
Partial model of the comprehensive pipe gallery
Segment unit of comprehensive pipe gallery
Partial model of the comprehensive pipe gallery
Partial model of the comprehensive pipe gallery
Partial model of the comprehensive pipe gallery
Partial model of the comprehensive pipe gallery
If you have BIM project needs for underground pipe gallery, or want to purchase Ai 3D PNL component library management plug-in / road design BIM software OpenRoads Designer, please follow the "Ai 3D Technology" WeChat public account to contact us.