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Back analysis of geomechanical parameters in underground engineering using artificial bee colony
Changxing Zhu1, Hongbo Zhao1, Ming Zhao1
1School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
Thescientificworldjournal
|August 20, 2014
Summary
This study introduces a novel back analysis method using the artificial bee colony (ABC) algorithm to identify crucial geomechanical parameters from tunnel displacements. The approach enhances accuracy and efficiency in tunneling design and support, even for complex scenarios without analytical solutions.
Area of Science:
- Geotechnical Engineering
- Computational Intelligence
- Tunneling Engineering
Background:
- Accurate geomechanical parameters are essential for safe and efficient tunneling.
- Traditional back analysis methods can be time-consuming and computationally intensive, especially for problems lacking analytical solutions.
Purpose of the Study:
- To propose a novel displacements back analysis method for identifying geomechanical parameters.
- To enhance the efficiency and accuracy of geomechanical parameter identification in tunneling projects.
Main Methods:
- Utilized the artificial bee colony (ABC) algorithm as a global optimization tool to identify geomechanical parameters.
- Employed least square support vector machine (LSSVM) to establish relationships between parameters and displacements for problems without analytical solutions, improving back analysis efficiency.
Main Results:
- The proposed ABC-based back analysis method was successfully applied to a tunnel with an analytical solution.
- The method demonstrated feasibility and effectiveness for a tunnel without an analytical solution, showcasing improved efficiency.
Conclusions:
- The developed displacements back analysis method using ABC and LSSVM is a feasible and efficient approach for identifying geomechanical parameters in tunneling.
- This technique offers a valuable tool for improving the accuracy of geomechanical parameter estimation in tunnel engineering.
