A perfect comprehensive presentation which covers different slope protection method in hard surfaces as well as smooth surface.

1. Gandhinagar Institute of
Technology
Presentation on
SLOPE PROTECTION WORKS
Civil Engineering Department
Presented By :
Raj Shah(140120106104) Submitted to
Prof. Mili Bhavsar

2. INTRODUCTION
• What is a Slope Protection ?
• Classification
1. Natural Slope.
2. Manmade Slope.

3. COMPONENTS OF A WELL DESIGNED SLOPE
• Surface Protection.
• Surface Drainage.
• Subsurface Drainage.
• Other protective provisions.

4. HOW DO SLOPES FAIL ?
• Slope can collapse easily by shear if the soil is nearly
saturated and high pore pressure can be built up
rapidly.
• The falling debris carried by its potential and
momentum can rush down the slope at very high
speed and travel a long distance causing huge
damages.

5. FACTORS AFFECTING STABILITY OF SLOPES
• Topography and its surrounding physical conditions.
• Geological conditions such as the nature and the depth
of its subsoil, degree of decomposition , or location of
fracture etc.
• Shear strength of the slope-forming materials.
• Surface and ground water condition.
• External loading and surcharges.

6. • STABILITY OF SLOPES CAN BE ACHIEVED BY
FOLLOWING METHODS
• A surface drain system that is capable to discharge all
the storm water within the catchment area affecting
slope in a designated period of time.
• A surface drain system usually consists of:
- surface channel
- stepped or trapezoidal channel
- catch pit or sand trap.

7. • FORMING SURFACE DRAINAGE CHANNEL TO
SLOPE

8. • CONSTRUCTING GABION WALL

9. • PROTECTION AND TREATMENT TO ROCK SLOPE
• Scaling – Manual method of removing loose rocks and
boulders from exposed rock surfaces.

10. • CONSTRUCT BUTRESS SUPPORT
• This is a concrete or masonry gravity structure to
retain the rock mass.
•

11. • MESHING
• Slope mesh is a commonly used method to protect
people and structures from rock fall, as well as other
geohazards.
• Installing a mesh system involves drilling anchors,
installing the posts and support cables, securing the
mesh netting onto the system, and stitching and
weaving the mesh panels together.

13. • SHORTCRETING
• Applying concrete in pressure to weak rocks and
fractured rocks.

14. • DOWEL
• A hole is drilled and steel bars are anchored usually
25mm to 35 mm diameter and 1 to 3 m long, to
stabilize a weak zone. The hole is grouted afterwards.
• ROCK-BOLT NAIL
• The tensioned bars are inserted into rock forming a
short anchorage zone in rock so that an unstable slope
being reinforced.
• Rocks bolts are 25 to 40 mm in diameter , 3 to 6 m
long and tensile working load of 100KN

15. • FORMING SOIL NAIL AND ROCK BOLTS

16. • SLOPE PROTECTION WORKS FOR SOFT
SURFACE
• Hydro seeding
Turfing Plant Growth

17. • NYLON MESH FOR SUB-SURFACE DRAINAGE
AND TO REINFORCE THE ROOT OF GRASS

18. TURFING A SLOPING SURFACE

19. 1ST Month
2nd Month

20. 3rd Month
4th Month

22. • REFRENCES
• http://www.slopestabilization.com
• https://www.maccaferri.com/ph/solutions/slope-
protection