The Performance Analysis of Grouting Repair Effect on the Accuracy of Disturbance Stress Test in Damaged Surrounding Rock Mass
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View abstract on PubMed
Summary
This summary is machine-generated.Grouting repair significantly improves disturbance stress testing accuracy in deep engineering projects. Complete damage zone repair and segmented testing methods are key to minimizing errors and ensuring safety.
Area Of Science
- Geotechnical Engineering
- Rock Mechanics
- Civil Engineering
Background
- Disturbance stress assessment is vital for deep engineering project safety.
- The stress relief method is primary for 3D disturbance stress monitoring but can be inaccurate due to post-excavation rock damage.
- Grouting repairs damaged rock masses, enhancing mechanical properties.
Purpose Of The Study
- To numerically investigate the impact of grouting on disturbance stress testing accuracy in damaged rock masses.
- To propose and evaluate a segmented testing method for improved disturbance stress assessment.
Main Methods
- Numerical simulations were used to model disturbance stress testing after grouting repair of damaged rock.
- The study analyzed the effect of repair depth on stress testing error.
- A segmented testing method was proposed, separating initial stress and stress change measurements.
Main Results
- Grouting repair substantially enhances the accuracy of disturbance stress testing.
- Increased depth of grouting repair correlates with decreased stress testing error.
- Complete repair of the initial damage zone is crucial for eliminating testing errors.
Conclusions
- Grouting repair is an effective method for improving disturbance stress testing accuracy in deep engineering.
- The proposed segmented testing method reduces stress levels, minimizes rock failure, and enhances testing precision.
- This research provides foundational methods for improving disturbance stress testing in deep hard rock engineering.
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