The end client manages water supply treatment and maintenance for an 80 km² area, with pipe networks serving over 200 industrial enterprises and 500,000 residential users. The existing 6,000+ valve wells, constructed with traditional brick masonry, suffer from long-term infiltration of industrial wastewater and groundwater erosion, leading to issues such as well body cracking (15% annual damage rate), manhole cover subsidence (30% of cases), and valve corrosion/sticking (200+ monthly maintenance incidents). These problems cause frequent water leaks (average 10 tons/well/year), not only wasting water resources but also disrupting industrial production due to emergency repairs.

The traditional underground network manhole nodes, constructed with brick masonry, have been in service for over 10 years and require frequent maintenance, increasing operational costs. Inside the manholes, the brick structure has collapsed and cement has peeled off, affecting normal use. As a rigid structure, brick masonry has low tensile and shear strength, prone to cracking or even collapse when subjected to uneven foundation settlement, vehicle load vibration, or seismic effects.

The client, a leading local cable TV operator responsible for cable network construction and maintenance, manages over 8,000 km of underground coaxial cables and fiber networks, serving more than 2 million households. With the acceleration of urban old community renovation and municipal engineering projects, misdigging accidents due to unclear cable positioning became frequent. In 2024, 127 cable damage incidents were recorded, with an average repair time of 4.2 hours per incident.