Sl the Determine followmg: dl ' (a) of ample (b) al vertical force 200 and 00 for B <1>;. (c) dila ion angle at vertie.al 200 · 400 ample B Th forces of and for it ili obtain d!e-sir best graph vertical Strategy To the d a]u to plo a of force ver us horizontal force. Solutio 5.3 lcp 1: Plo a aph of the vertical f rce "ersu failure horizontal force for each sample. e Fig. E -.3. If! tep E.-tract 2: aight ll the plotted poin for A fall on a t the sample line lluoug.h origin. Sample A is a nondilatant soil. possibl_ a loose sand or a is¢ "" normally consolidated clay. The ffcctive friction angle 311. <!>;. rep Determine foT fo nor The tit 00 N and 4lmple B do lie n horizontal 400 the r straight has a line corresponding to</)::,_, Therefore each these forces <fl; e:d ·with it assoda r an-{!) - (4t;) = 1. o tan-{;mo (41;);!00 :- 1 " = <!>;-,;. tep · Determine a . 41.2- 11.2° (a) · 3{l = 2 = ([l) 1.8 - 30 1.8° = N = decreases. Not hat the n.o:rmal force in re ses aP FIGUREE5.3
Sl Determine the followmg: (a) dl ' (b) <1>;. al vertical force of 200 and 00 for ample B (c) Th dila ion angle at vertie.al forces of 200 · and 400 for ample B Strategy To obtain the d!e-sir d a]u it ili best to plo a graph of vertical force ver us horizontal force. Solutio 5.3 lcp 1: Plo a aph of the vertical f rce "ersu failure horizontal force for each sample. e Fig. E -.3. tep 2: E.-tract If! ll the plotted poin for sample A fall on a t aight line lluoug.h the origin. Sample A is a nondilatant soil. possibl_ a loose sand or a normally consolidated clay. The ffcctive friction angle is¢ "" 311. rep Determine <!>;. The horizontal foT tit 00 N and 400 fo 4lmple B do nor lie n the straight line corresponding to</)::,_, Therefore each r these forces has a <fl; assoda e:d ·with it (4t;) r = an-{!) - 1. o (41;);!00 :- = tan-{;mo 1 " tep · Determine a . = <!>;-,;. (a) · 2 41.2- 3{l = 11.2° ([l) N = 1.8 - 30 = 1.8° Not hat the n.o:rmal force in re ses aP decreases. FIGUREE5.3
AED%20Design%20Requirements%20-%20Geotechncial%20Investigations_Aug%2009.docx