Experimental Study on Bond-Slip Behavior of Bamboo Bolt-Modified Slurry Interface under Pull-Out Load
Table 8
The results of the pull-out experiment of the interface between bamboo bolt and modified slurry.
Specimen
Anchoring length Lb (mm)
Maximum load Fmax (kN)
Maximum strain εmax (%)
Maximum stress τmax (MPa)
Maximum slipasmax (mm)
Ultimate slipbsult (mm)
CB-L-800a
800
3.75
0.384
0.751
—
—
CB-L-800b
800
19.39
0.163
0.648
10.87
26.17
CB-L-1200a
1200
28.36
0.551
1.231
9.84
29.72
CB-L-1200b
1200
25.22
0.410
1.659
12.36
24.05
CB-L-1500a
1500
35.72
0.481
1.694
14.57
27.33
CB-L-1500b
1500
34.47
0.50
1.203
16.27
23.27
CB-L-2000a
2000
39.82
0.449
1.737
23.23
53.68
CB-L-2000b
2000
38.44
0.467
1.892
29.00
59.38
CB-L-3000a
3000
40.50
0.60
2.31
17.12
55.16
CB-L-3000b
3000
38.63
0.521
1.652
20.91
60.89
CB-d0-25-15a
1500
31.08
0.346
1.306
21.97
23.71
CB-d0-25-15b
1500
31.54
0.393
1.102
17.24
23.27
CB-d0-25-20a
2000
23.14
0.451
1.829
32.26
39.54
CB-d0-25-20b
2000
35.08
0.293
0.977
36.57
46.47
CB-d0-50-15a
1500
41.03
0.386
1.418
12.83
34.78
CB-d0-50-15b
1500
33.03
0.617
2.011
16.99
23.66
CB-d0-50-20a
2000
38.13
0.462
1.457
23.08
41.74
CB-d0-50-20b
2000
39.33
0.485
1.766
24.98
38.35
CB-d-75-15a
1500
16.14
0.331
0.783
9.92
10.16
CB-d-75-15b
1500
14.63
0.293
1.114
12.93
14.99
CB-d-75-20a
2000
19.11
0.49
1.258
25.96
30.21
CB-d-75-20b
2000
21.09
0.259
0.624
29.81
28.63
CB-d-110-15a
1500
33.13
0.384
1.494
16.33
41.11
CB-d-110-15b
1500
35.19
0.462
1.789
25.69
47.68
CB-d-110-20a
2000
32.81
0.441
1.233
31.99
60.22
CB-d-110-20b
2000
29.83
0.510
1.627
30.78
53.78
asmax and bsult are the maximum slip and ultimate slip that are the amount of slip corresponding to the maximum load and the failure of the anchor system, respectively.
