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STABILITY ANALYSIS OF SOIL SLOPE IN SWABI, PAKISTAN

Muhammad Waseem*, Irshad Ahmad**, Rawid Khan**, Bashir Alam**, Khan Shahzada**, Muhammad Javed**

*National Center of Excellence in Geology, University of Peshawar, Pakistan
**Depaerment of Civil Engineering, University of Engineering and Technology, Peshawar, Pakistan

ABSTRACT

In this study, slope stability analysis for a particular type of soil in Swabi area was carried out using the method of slices. Gravity load and seismic load were considered in the stability analysis. SLOPE/W and SIGMA/W software of Geo studio package were used for analysis under both dry and completely saturated conditions. Pseudo-static approach was used for the seismic stability analysis. The peak ground acceleration value for stability analysis was obtained from the seismic hazard analysis. Two soil slope conditions were considered, and one was found in critical condition. Retaining wall, Soil nails and ground anchors were assumed in the analysis for stability of slope with critical condition. Peak ground acceleration value of 0.235 g is determined with site specific deterministic seismic hazard assessment approach. The maximum displacement in the soil slopes with retaining wall, soil nails, and ground anchors are 0.0220, 0.01665 and 0.01529 feet respectively. Results showed that using ground anchors have a factor of safety 1.165 and both the horizontal and vertical deformation values are within the limit. Based on results, ground anchors technique was found to be a suitable method for slope stability in Swabi.

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Journal of Engineering and Applied Sciences

December

Vol. 42, pp. 01-48

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