This document discusses the requirements for analyzing the stability of hill slopes that will be disturbed by road development projects. It notes that slope studies are needed to design cost-effective solutions to manage rockfall and landslide risks after development. The document provides typical sketches of slope failures and cross-sections of formations. It also outlines different protection methods for soil cut slopes, soil and weathered rock cut slopes, soil cut slopes in high water tables, and the use of retaining walls.

1. Hill Slope Stability

2. Requirement of slope study
Hill slopes which will be disturbed by road development
may pose a threat to life, property and missions.
 Design a cost effective solutions to manage, control
rock-fall and landslide after development

3. Stability Analysis requirement
Typical Sketch of slope failure, slip circle

4. Typical C/S of formation

5. Slope protection: Soil cut slope

6. Slope protection: Soil/ Weathered rock
cut slope

7. Slope protection: Soil cut slope in high
water table

8. Slope protection: RE wall

9. Slope protection: Retaining wall