Slope Stability Model and Landslide Susceptibility Using Geo-technical Properties of Soil - Semi-quantitative Approaches for Landslide Assessment and Prediction - page 181

Table 6.3 Stability analysis for 10 critical locations
Location sites

Under saturated
condition

Remarks

S.F Stability

1. Tindharia tea garden 0.997576 Unstable Further concentration of settlement should be restricted, reduction of slope steepness, draining

of seepage water by boreholes to reduce destabilizing factors

2. Lower Paglajhora
(14 miles Bustee)

0.962668 Unstable Surface and sub-surface drainage diversion and monitoring and draining of seepage water by

boreholes, restriction on heavy loaded vehicles to reduce destabilizing factors

3. Lower Paglajhora (main
slide)

0.950526 Unstable Sub-surface drainage monitoring and draining of seepage water by boreholes, jhora training

through concrete structure

4. Mahanadi tea garden 1.003670 Quasi

stable

Drainage network management, plantation and afforestation, construction of retaining walls
and concrete drains along the road side are to be taken into consideration in quasi stable area

5. Gayabari lower slope
(780 M)

1.071282 Quasi

stable

Plantation and afforestation, construction of retaining walls and concrete drains along the road
side are to be taken into consideration in quasi stable area

6. Tindharia proper slide
(near rly. station)

0.978952 Unstable Human intervention should be stopped completely, application of geotextile method can bring

stability over steep slope

7. Shiviter T.E 0.980069 Unstable Establishment of horizontal drains to reduce upslope contributing area above the slide and

application bio-engineering method to stabilize the slope

8. Sepoydhura T.E 0.990349 Unstable Deforestation and haphazard concentration of human settlement and their activities should be

restricted to get rid of slope failure

9. Nurbong T.E. (sinking
zone)

0.99977 Unstable Draining of seepage water by boreholes and cementing of the cracks over steep slope to reduce

destabilizing factors

10. Central part of the
watershed from Gayabari

0.978043 Unstable Afforestation, plantation and other soil conservation technique must be employed. Concrete

drains to monitor surface drainage and construction of retaining walls TO to duce the
destabilizing factors