Cantilever anti-slide pile side pressure monitoring method

By setting up a coordinate positioning acquisition instrument and a monitoring point calculation module on the anti-slide pile, dividing the monitoring grid, calculating the position of the pile body turning point, and fitting the analytical expression using the least squares method, real-time monitoring of the pile side pressure of the anti-slide pile was realized, solving the monitoring problem during service and ensuring the stability and safety of the pile body and slope.

CN116043927BActive Publication Date: 2026-06-30HUNAN INSTITUTE OF ENGINEERING
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Patent Information

Application Number
CN202211739284.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-30
Publication Date
2026-06-30
Estimated Expiration
2042-12-30

AI Technical Summary

Technical Problem

Existing technologies make it difficult to monitor the distribution of pile side pressure and its bearing reliability in real time during the service life of anti-slide piles. This makes it difficult to grasp the optimal time for anti-slide pile compensation and reinforcement, and it is easy to miss the best opportunity, leading to the occurrence of secondary disasters.

Method used

Using a coordinate positioning acquisition instrument and a monitoring point calculation module, the coordinates of the monitoring points are obtained by dividing the monitoring grid, the position of the pile turning point is calculated, and the analysis formula is fitted by the least squares method in combination with the pile deformation and the non-uniform external load characteristics of the pile-soil interface of the loaded section to monitor the pile side pressure distribution in real time.

Benefits of technology

It enables real-time, safe, simple, and accurate monitoring of pile side pressure during service, timely feedback of pile deformation and pressure distribution, ensuring pile bearing stability, actively controlling the overall slope stability, and reducing monitoring costs and the risk of human error.

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Abstract

This invention discloses a method for monitoring the lateral pressure of cantilever anti-slide piles, comprising the following steps: setting up a coordinate positioning acquisition instrument and a monitoring point calculation module; dividing the left or right side of the cantilever section of the anti-slide pile into a monitoring grid, and selecting displacement and lateral pressure monitoring points; acquiring the coordinates of the monitoring points using the coordinate positioning acquisition instrument on the ground; calculating and determining the turning point positions on the front and rear sides of the pile body using the monitoring point calculation module; determining the displacement and deflection distribution of the monitoring points based on pile deformation and the non-uniformly distributed external load characteristics of the pile-soil interface in the loaded section of the cantilever pile; and obtaining the analytical formula for fitting the lateral pressure at any point on the side of the cantilever anti-slide pile by converting the deflection of the monitoring points in the loaded section of the cantilever pile. This invention overcomes the problems of anti-slide pile breakage, slope landslides, and human error caused by unreasonable monitoring schemes or results regarding the turning point positions, pile deformation, and lateral pressure of anti-slide piles during service, as well as the complex technology, high risk, and high monitoring costs. It ensures that the rapid monitoring method is environmentally adaptable, safe to operate, simple to construct, low-cost, and highly accurate.
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