Case Studies

Underground Utility Survey of Tongfu Road (Xiamen, China)

Release time :2025-07-01 14:59:08   Views:
Project Date: August of  2022

Project Location:  Xiamen, China

Project Scope: Underground Utility Surveyings

Total Construction Area: Length of Tongfu Road: 3.8 km (approx. 12,467 ft) 


Project Overview :
Tongfu Road is a major transportation artery in Tong’an District, Xiamen, covering key residential and commercial areas and playing a significant role in regional traffic management and urban development. The underground utility layout along this road is highly complexed, encompassing various infrastructures such as water supply and drainage, electricity, gas, and telecommunications. The utilities are densely packed with diverse routing, numerous intersections, and connection points, posing significant challenges for maintenance and renovation. This makes Tongfu Road a typical case study for City Information Modeling (CIM) applications in urban infrastructure management.

Project Details:
Bimodeling conducts comprehensive detection of existing underground utilities using 3D ground-penetrating radar (GPR) technology combined with manhole verification. This process captures information such as pipeline alignment, burial depth, and attributes, generating a detailed 3D data model of the underground network. Meanwhile, UAV-based oblique photogrammetry rapidly builds a 3D reality model of the surrounding terrain, accurately reflecting current topography. The final deliverables include an up-to-date 3D model and topographic maps integrating both surface and subsurface utility data.




1. CAD Drawing 

By employing underground utility scanning technology, comprehensive detection is performed on concealed and incomplete pipeline information, accurately obtaining data such as pipeline alignment and depth, and producing detailed utility mapping drawings.

CAD Drawing of Tongfu Road




2. 3D Laser Scanning Point Cloud Data

Construct a digital model that accurately reflects details such as pipe diameter, alignment, connection points, and burial depth.

 
Partial Point Cloud of Tongfu Road

 

3.3D Model
Aggregate pipeline information to achieve 3D data visualization.


 Overlay of Point Cloud and Revit Model
 

Partial CIM of Tongfu Road-1

Partial CIM of Tongfu Road-2