1. N σ (kN/m²) τ (kN/m²) σ.τ σ²
0
1 100 65 6500 10000
2 200 170 34000 40000
3 300 200 60000 90000
sum 600 435 100500 140000
∅= 34deg
tan ∅= 0.675
C= 10.0
ư. Ð‗ĜЮũ₤НБ₤ʼn ₣с₤∆ ЊijďĠсũĠ₤сřБ ĕЊ₣ņНе˝˝Њij˝ĖО₣řБ
tan
C
n
  

 
2 2
tan
( )
n
n
  

 



  
 
0, 10.0
100, 65
200, 170
300, 200
0.0
50.0
100.0
150.0
200.0
250.0
0 50 100 150 200 250 300 350
Shear stress
Normal stress
Direct Shear Test
Series1 Linear (Series1)