Method and system for three-dimensional settlement-crack monitoring of static cutting connection area at subway exit
By deploying a multi-level monitoring point array and dual-link data acquisition in the static cutting connection area of the subway exit, the problems of reference system drift and timestamp mismatch in the existing technology are solved, realizing accurate monitoring and reliable judgment of settlement and crack deformation, forming a rigorous chain of evidence, and adapting to high-precision safety monitoring of the static cutting connection area of the subway exit.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 四川省建筑机械化工程有限公司
- Filing Date
- 2026-03-04
- Publication Date
- 2026-06-05
AI Technical Summary
Existing monitoring solutions are ill-suited to the complex environment of the static cutting connection area at subway exits. They suffer from issues such as reference frame drift, mismatch of multiple timestamps, and lack of auditable evidence chains, resulting in insufficient reliability of monitoring results and a high risk of misjudgment, making it difficult to meet the needs of high-precision safety monitoring.
By deploying monitoring point arrays of external stability benchmark group, field working benchmark group and structural response group, and combining dual-link data acquisition of total station three-dimensional observation link and static leveling elevation observation link, geometric stability check and cross-link consistency check are performed to generate reference system credibility markers. The time mapping model is used to achieve unified alignment of timestamps and generate time alignment credibility markers. Finally, settlement difference and crack increment indexes are calculated in the synchronous analysis window to determine the coordinated deformation event.
It achieves the benchmark reliability of monitoring data and precise alignment of timestamps, ensuring accurate determination of the causal relationship between settlement and crack deformation, forming a complete chain of evidence, improving the traceability and reliability of monitoring conclusions, and meeting the high-precision safety monitoring needs of the static cutting connection area at the subway exit.
Smart Images
Figure CN121783088B_ABST