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STABILIZATION OF EARTH SLOPES BY USING SOIL NAILING | ||
| KUFA JOURNAL OF ENGINEERING | ||
| Article 1, Volume 5, Issue 1, 2014, Pages 1-13 | ||
| Author | ||
| adher Hassan Al-Baghdadi | ||
| Abstract | ||
| The basic concept of soil nailing is to reinforce and strengthen the existing round by installing closely spaced steel bars, called “Nails”, into a slope as construction proceeds from “top-down”. This process creates a reinforced section that is in itself stable and able to retain the ground behind it. Soil nailing technique is used to support new very steep cuts with advantage of strengthening the slope with excessive earth works to provide construction access and working associated with commonly used retaining systems. In the present research work a parametric study has been made using commercial computer program “Slide 6“, which utilize different methods for solving slope stability problem, Bishop method has been used herein to analyze un nailed and nailed slopes with granular soil, different slope heights and angles have been considered. Some of nails parameters have been studied here in, positions of nail, length of nail, angle of nail inclination, and nail spacing. The optimum length of nail depends on height and angle of slope. The optimum angle of nail is found to be ranged between (10-25) degree down from the horizon, but it’s also relates with the angle of slope. The spacing of nail was found to be (1 m) to give the best improvement of F.S. | ||
| Keywords | ||
| Soil; Nailing; Reinforce; Strengthen Slide; stability | ||
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