Slope anchor cable prestress remote monitoring method and system based on intelligent sensing system
By preprocessing and demodulating the backscattered light signal inside the slope anchor cable through an intelligent sensing system, identifying characteristic signals and calculating the spatial information of the slip surface, the problem of inconsistent positioning caused by the independent monitoring of strain and vibration in the existing technology is solved, and high precision and reliability of slope anchor cable prestress monitoring are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 太行城乡建设集团有限公司
- Filing Date
- 2026-04-11
- Publication Date
- 2026-07-17
AI Technical Summary
In existing slope anchor cable prestress monitoring, strain monitoring and vibration monitoring are independent of each other, resulting in low positioning accuracy and poor slip surface identification ability. It is impossible to accurately distinguish the stress state difference between the anchored section and the free section, which affects the quantitative assessment of the shear effect of the slip surface.
A method based on an intelligent sensing system is adopted to acquire backscattered light signals collected by sensors inside the anchor cable. These signals are preprocessed and demodulated to form a distributed sensing sequence. A waveform feature recognition algorithm is used to identify characteristic signals of soil slip or crack propagation. Combined with the arrival time difference of the vibration waveform, the spatial information of the slip surface is calculated. Furthermore, the shear force change is calculated through segmented correlation analysis, and the prestress value is dynamically adjusted.
It enables precise positioning of local deformation of soil and rock masses, enhances the ability to characterize the spatial morphology of slip surfaces, establishes a collaborative analysis mechanism between strain and vibration, and improves the accuracy and reliability of prestress monitoring of slope anchor cables.
Smart Images
Figure CN122409025A_ABST