Which of the following is/are slope stabilization method(s)?
Show Hint
- Bolting
- Application of shotcrete
- Use of impression packer
- Use of geogrid
The Correct Option is A, B, D
Solution and Explanation
Step 1: Understanding slope stabilization.
Slope stabilization methods are engineering techniques used to prevent slope failure, landslides, and rockfalls. These involve mechanical reinforcement, surface protection, or modification of slope geometry and drainage.
Step 2: Examine each option.
- (A) Bolting: Rock bolts anchor unstable rock masses to more stable layers. Widely used in slopes and tunnels. \checkmark
- (B) Shotcrete: Sprayed concrete applied on slope surfaces prevents weathering, erosion, and small-scale detachment. \checkmark
- (C) Impression packer: This is a geotechnical testing device used for in-situ stress measurement and permeability testing, not a stabilization method.
- (D) Geogrid: A polymer grid used in soil reinforcement, improving slope stability by enhancing shear strength. \checkmark
Step 3: Conclusion.
Thus, slope stabilization methods include bolting, application of shotcrete, and use of geogrids.
Final Answer:
\[
\boxed{\text{(A), (B), (D)}}
\]
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