

— r 1 1 i i i 









, 









... — ■ 





__— - — ' 







z 









u 





CL, 







(p = 30 deg 



1 10 



- 























c 





2 



// * jS — ** </>-?" <**£ 



X 







/^>^~ 



1 



i i ■ i i i 1 



6 8 10 



Relative Embedment Depth, D/B 



12 



Figure 5-2. Holding capacity factors for cohesionless soils 

 (from Beard, 1979). 



soils, an extended period of time is required to obtain a similar condi- 

 tion. When the condition is reached, drainage is complete, and anchor 

 capacity is governed by a cohesive soil's drained strength parameters. 

 Those parameters are the friction angle, <)>, and the cohesion intercept, 

 c\ 



For long-term static holding capacity, use a factor of safety of 

 between 2 and 3, depending on the nature of the anchorage and the 

 reliability with which the soil parameters have been determined. 



5.2.1 Cohesive Soil 



For cohesive soils, Equation 1-1 is used directly. 



F„^ = A(c' N* + y, D N )(0.84 + 0.16 B/L) 

 lit c b q 



(5-3) 



44 



