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15117 CSL National Maternal CHC Project Cross‐hole Sonic Logging ‐ Results of Defect Analysis
RL CSL 1-2 1-3 1-4 1-5 2-3 2-4 2-5 2-6 3-4 3-5 3-6 4-5 4-6 5-6 6-1 RL CSL 1-2 1-3 1-4 1-5 2-3 2-4 2-5 2-6 3-4 3-5 3-6 4-5 4-6 5-6 6-1
-0.66 0 -0.60 0-0.91 0.25 -1.50 0.90-1.66 1 -1.60 1-2.66 2 -2.60 2-3.22 2.56 -3.22 2.62-3.66 3 -3.60 3-4.66 4 -4.60 4-5.66 5 -5.60 5-6.66 6 -6.60 6-7.66 7 -7.60 7-8.66 8 -8.60 8-9.66 9 -9.60 9
-10.66 10 -10.60 10-11.66 11 -11.60 11-12.66 12 -12.60 12-13.66 13 -13.60 13-14.66 14 -14.60 14-15.66 15 -15.60 15-16.66 16 -16.60 16-17.66 17 -17.60 17-18.66 18 -18.60 18-19.66 19 -19.60 19-20.66 20 -20.60 20-21.66 21 -21.60 21-22.66 22 -22.60 22-23.66 23 -23.60 23-24.66 24 -24.60 24-25.66 25 -25.60 25-26.66 26 -26.60 26-27.56 26.9 16/- 15/5.7 16/2.8 22/- 22/3.8 -27.64 27.04-28.00 -28.00
10/6 : less than 10% increase in FAT / less than 6dB energy reduction20/9 : between 10% and 20% increase in FAT / less than 9dB energy reduction
30/12 : between 20% and 30% increase in FAT / between 9dB and 12dB energy reduction31/13 : more than 30% increase in FAT / more than 12dB energy reduction
BP07
Top of Concrete
BP06
Top of Concrete
Design Cut-off Level
Top of tubes Top of tubes
Design Cut-off Level
SatisfactoryAnomaly
FlawDefect
Designed pile lengthDesigned pile length
54
32
1
6
54
32
1
6
A‐2
15117 CSL National Maternal CHC Project Cross‐hole Sonic Logging ‐ Results of Defect Analysis
RL CSL 1-2 1-3 1-4 2-3 2-4 3-4
-0.31 0-1.31 1-2.31 2 27/1.0-3.31 3-4.31 4-5.31 5 18/1.0-6.31 6-7.31 7-8.31 8-9.31 9
-10.31 10-11.31 11-12.31 12-13.31 13-14.31 14-15.31 15-16.31 16-17.31 17-18.31 18-19.31 19-20.31 20-21.31 21-22.31 22-23.31 23-24.31 24-25.31 25-26.31 26-27.31 27
SatisfactoryAnomalyFlawDefect
Top of Concrete
Design Cut-off Level
BP25
4
3
2
1
15117 CSL National Maternal CHC Project Cross‐hole Sonic Logging ‐ Results of Defect Analysis
RL CSL 1-2 1-3 1-4 2-3 2-4 3-4
0 -3-0.56 -2 13.0/--1.56 -1 19.0/--3.22 0-3.56 1-4.56 2-5.56 3-6.56 4-7.56 5-8.56 6-9.56 7
-10.56 8-11.56 9-12.56 10-13.56 11 12.0/--14.56 12-15.56 13-16.56 14-17.56 15-18.56 16-19.56 17-20.56 18-21.56 19-22.56 20-23.56 21-24.56 22-25.56 23-26.56 24-27.56 24.34 13.0/-
-28 24.78
SatisfactoryAnomalyFlawDefect
Design Cut-off Level
BP27
Top of Concrete
Designed pile length
4
3
2
1
