Study on Treatment of Loess Landslide Based on Nanosilica and Fly Ash Composite Stabilizer Filling Fissures
Table 3
Testing results of the ST tests.
Test
Material code
Matric suction
σ3–ua (kPa)
qf (kPa)
C (kPa)
Φ (°)
ST1
—
180
50
267
59 3
28 2
100
313
200
489
400
657
ST2
A1
344
50
310
67.1
29.6
100
386
200
503
400
889
A2
380
50
525
88.7
34.6
100
677
200
794
400
1116
A3
395
50
633
93.6
37.8
100
726
200
984
400
1315
B1
367
50
456
72.6
30.7
100
529
200
705
400
981
B2
392
50
623
94.8
36.0
100
778
200
913
400
1283
B3
400
50
704
100.6
38.3
100
810
200
1022
400
1387
qf is deviator stress when failure, C is cohesion, Φ is internal friction angle, A is materials containing 3% nanosilica, and B is materials containing 5% nanosilica.