Slip surface in narrow backfill behind retaining wall

For a particular area in Geotechnical engineering, soil slope is defined as surface of mass which inclined. It the unstable or has insufficient factor safety, then it needs to be strengthened by retaining wall earth reinforcement ensue failure does not occur. long been known that pattern slip classified into two main types: translation and rotation. Other patterns can approached within mentioned types above. The purpose this classification assist engineers process stability analysis obtain safety system if any. analysis, developed method generally form pressure behind wall. due self weight generated assuming backfill enough, so fully described according Then cases where quite narrow, should corrected modified. These narrow areas are often found on roads built relatively steep slopes. In paper, presented. results study very useful for developing analytical methods soils location limitations.