On August 19-21, 2020, the Underground Space Innovation Competition and Innovation Development Summit Forum with the theme of "Innovative Development" was successfully held in Changsha City!

This forum is hosted by the Comprehensive Pipe Gallery Construction and Underground Space Utilization Professional Committee of the China Municipal Engineering Association and the Underground Space Branch of the China Society of Rock Mechanics and Engineering. It is organized by China Construction Fifth Engineering Bureau and China Construction Fifth Engineering Bureau Third Company.

The theme of the forum is to explore new technologies for underground space utilization, summarize new processes for underground space construction, enhance industry development enthusiasm, and promote the healthy and sustainable development of our underground space industry.

Seven engineering academicians including Qian Qihu, winner of the Home Science and Technology Award, leaders of relevant associations such as the China Municipal Engineering Association, the China Society of Rock Mechanics and Engineering, and China State Construction Engineering Co., Ltd., as well as industry experts, attended the forum. The Pipe Gallery Department of Henan Chicheng Electric Co., Ltd. also actively participated.

The expert group exchanged and discussed the current status and development of underground spaces.

Currently, as the scale of our city continues to expand, the saturation of above ground space has brought about a series of urban problems, such as deteriorating living environment and public services, traffic congestion and tidal traffic, prominent "heat island effect", and severe urban waterlogging, making the development of underground urban space an urgent new issue.

And I am a home with a large demand and scale for underground space development and utilization. The overall development and utilization of underground space has gone through the initialization stage, scaling stage, and networking stage, and will enter the ecological stage in the future.

We need to summarize our development experience, apply new technologies, concepts, and disciplinary integration methods to enhance the high-quality development level of underground space, and achieve the goal of innovative development.

01. Development advantages of underground space

The development potential of urban underground space is great. If it can be reasonably developed and utilized, it will be of great significance for improving the urban environment, alleviating urban transportation, improving the efficiency of urban operation, and achieving intensive urban development. "said Jiang Lihong, Chairman of the Comprehensive Pipe Gallery Construction and Underground Space Utilization Professional Committee of the China Municipal Engineering Association.

Underground space is a huge and abundant spatial resource. While developing underground transportation and reducing urban air pollution, some cities actively construct public tunnels and underground pipe galleries for urban underground municipal pipelines, including tap water, sewage pipes, heating pipes, cables, and communication lines. This can shorten the length of the route by up to 30% and is easy to inspect and repair, without affecting the use of surface land.

02. Safety issues in underground space construction

Compared with above ground buildings, underground spaces have the characteristics of relatively enclosed space, few external exits, small ventilation area, and difficult smoke exhaust, which can easily cause major accidents such as fires, gas poisoning, and suffocation.

The oxygen in underground space is thin, but toxic and harmful gases are often much more severe than in above ground space. Pollution projects mainly include nitrogen oxides, inhalable particles, total suspended particles, carbon monoxide, carbon dioxide, and total volatile organic compounds. Moreover, due to long-term fermentation of underground sewage and other substances, a certain amount of hydrogen sulfide and methane will be produced, posing a threat to the safety of workers.

Chicheng Electrical System Solution

The construction of underground space cannot be separated from the support of technological products. In the enterprise exhibition area, attendees communicated and exchanged ideas with technical personnel from Chicheng Electric. Through understanding system solutions and related gas detection equipment, they jointly discussed the direction and path of underground space safety development.

Chicheng Electric systematically showcased the performance and technical parameters of fixed gas detection alarms (QB2000N, QB10N, QB2000F), level gauges (YW100), temperature and humidity instruments (WH100), and portable gas detectors (GC310), as well as the company's strength and development history, to guests through exhibition boards.

QB2000F

The solution for the underground space system of Chicheng Electric is a set of safety systems that have been repeatedly tested, researched, and summarized. It has functions such as real-time gas detection, regional alarm control, data collection and storage, and remote operation and maintenance through a mobile app, effectively ensuring the safety of underground space operations.

Building an underground safety network is the pursuit of Chicheng Electric. After 16 years of hard work and perseverance, we are dedicated to safeguarding the safety of the gas environment. Through the learning of this summit forum, Chicheng Electric has more clearly defined its responsibility and attitude, will absorb the essence of this forum, and contribute to the safety and development of underground space!

Henan Chicheng Electric Co., Ltd. specializes in the production of gas detection alarms, with an independent research and development team. The gas detection alarms produced have good performance, reliable quality, and complete functions, and have become the choice of many industrial and commercial places and millions of people