Project Description:

In order to strengthen the ability of road subsidence disaster prevention and control, and in response to the requirements of road subsidence investigation and remediation, prevention and control, the company undertook the construction and development of the first government informatization project - Guangzhou City Road Subsidence Risk Analysis and Evaluation System. After sustained efforts, the system overcame a series of challenges such as complex collapse mechanism, huge data volume and high algorithm requirements, and formed a complete achievement system in mechanism research, model construction, standard construction, data fusion, scientific research and innovation, and system application, and formed one set of assessment technical standards, one technical guideline, one Guangdong local standard, two sets of big screen systems, two PC systems, and several inventions and papers, and other high-quality achievements. It has also formed a number of inventions and papers and other high-quality achievements. The Guangzhou City Road Collapse Risk Analysis and Assessment System takes detection and perception - data fusion - risk assessment - auxiliary decision-making as the technical route, constructs a scientific and reasonable road collapse risk assessment model by fusing multi-dimensional data related to road collapse, and realizes comprehensive analysis of road collapse risk and unified management of one map, which has been tested to be effective by several applications since its development, and has shown strong adaptability in the management of hidden road safety hazards.

Technical Highlights:

1. realizing three-dimensional visualization expression of underground structure. 

2. adopting remote sensing satellite (Intersat);

3. adopting InSAR high-precision subsidence monitoring technology;

4. establishing a dynamic assessment model of road network subsidence risk;

5. forming a demonstration application of high-risk road section guidance detection and disposal work;