Vertical uplift resistance of circular plate anchors in clays under undrained condition

✍ Scribed by Vishwas N. Khatri; Jyant Kumar

• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 633 KB
• Volume: 36
• Category: Article
• ISSN: 0266-352X
• DOI: 10.1016/j.compgeo.2009.06.008

✦ Synopsis

The vertical uplift resistance of circular plate anchors, embedded horizontally in a clayey stratum whose cohesion increases linearly with depth, has been obtained under undrained (/ = 0) condition. The axisymmetric static limit analysis formulation in combination with finite elements proposed recently by the authors has been employed. The variation of the uplift factor (F c ) with changes in the embedment ratio (H/B) has been computed for several rates of increases of soil cohesion with depth. It is noted that in all the cases, the magnitude of F c increases continuously with depth up to a certain value of H cr /B beyond which the uplift factor becomes essentially constant. The proposed static limit analysis formulation is seen to provide acceptable results even for the two other simple chosen axi-symmetric problems.