"Underground space, especially urban underground space, is an effective way to solve many urban problems and is the future direction of development."

Underground space is a precious natural resource which belongs to below the surface or inside the stratum. There are many kinds of underground space, including naturally formed caves, artificially modified caves, underground buildings and underground structures.

Compared with the space above the ground, the underground space has better protection, sealing, stability, obvious land saving and better economy.

Nowadays, China has become a big country in the development and utilization of urban underground space. Rational use of underground space has become an inevitable choice to improve urban functions, promote the construction of smart cities, and achieve sustainable urban development.

Most cities in China are rich in groundwater, and the building body of underground space is a spongy body. Under the action of pressure difference, the moisture content of the wall is easily exceeded, and the moisture is continuously released into the indoor space, which eventually leads to humidity and mildew.

Underground engineering subway, tunnel, underground garage, air-raid shelter, etc., because of their special underground space environment, large area of adjacent soil, formation structure and other factors, there are common problems of leakage and moisture.

The 2019 edition of the "China Basement moisture-proof Industry Market Prospect Analysis Forecast Report" analysis of the global moisture-proof industry pointed out that basement moisture-proof is a global problem.

Through 13 years of research and development and practical application, Tongqiang Technology's "Electroosmotic pulse impermeable dehumidification system" has become one of the most advanced solutions in the world to deal with structural leakage moisture.

"Active" tide drainage technology, breaking the traditional waterproof concept, the system and the building life.

According to the principle of water electroosmosis combined with pulse technology, the intelligent low-voltage multi-pulse technology is adopted to actively discharge the water molecules in the structure to the outside of the structure (negative direction). Thus, the structure can reach a dry state, and then prevent the risk of moisture and mold, and effectively solve the problem of tide seepage and mold in the basement of large-scale underground projects and villas.