Underground Construction - January 2020 - 36
CIGMAT Report
0
0
P
-10
Top
Middle
Bottom
Lateral, tensile
-20
-30
Microstrain
Microstrain
-20
-40
-50
-60
-30
-40
-50
Top
Middle
Bottom
Lateral, tensile
-60
-70
-70
A
-80
0
100
200
300
Days
400
500
600
-80
700
0
B
0
100
200
300
Days
400
500
600
700
0
R
-10
-20
-20
-30
-30
-40
-50
Top
Middle
Bottom
Lateral, tensile
-60
-70
-80
0
100
S
-10
Microstrain
Microstrain
Q
-10
-40
-50
Top
Middle
Bottom
-60
-70
C
200
300
Days
400
500
600
-80
700
0
100
D
200
300
Days
400
500
600
700
FIGURE 5: Axial and lateral strains measure in the service piles (a) Pile P, (b) Pile Q, (c) Pile R, and (d) Pile S.
1,200
TABLE 1: Summary of Pile-Loading Model Parameters
1,000
Design load
Model Q
Model S
Pile Q
Pile S
Load, KN
800
600
Pile
Model P
Model R
Pile P
Pile R
P
R
Q
S
400
Q(t) (kN)
A (day/kN)
B (1/kN)
P
754
0.22
0.00095
Q
541
0.05
0.0018
R
648
0.25
0.0011
S
523
0.25
0.0015
200
0
0
100
200
300
Time, days
400
500
600
*
FIGURE 6: Measured and predicted axial load with time.
The predictions are compared to the experimental results in
FIG.6; the model parameters are summarized in TABLE 1.
*
Conclusions
Based on the instrumentation and monitoring of the full-scale
load test and performance of the 760-mm-diameter ACIP
service piles for 600 days in clay soils, the following conclusions
are advanced:
* Monitoring the curing of the grout not only helped in
determining the quality of the pile, but also to decide on the
36
JANUARY 2020 | UConOnline.com
*
*
earliest time the pile can be loaded. All ACIP piles that
were monitored completed curing in 7 days.
Based on the full-scale load test, it was determined that
when the pile was loaded to the design load of 1150 kN the
settlement was about 2 mm. The settlement was 17 mm at a
load of 4600 kN - four times the design load. Instrumentation
of the piles made it possible to quantify the skin and tip load
transfers in the test pile and service piles.
The service piles were loaded to a maximum of 66% of the
design load. Long-term monitoring of instrumented service
piles showed that the load transfer behavior was within the
design relationships used in the design.
The performance of all the ACIP service piles monitored
during this study was acceptable.
Vipulanandan p-q model and property correlation model
were used to predict the curing and performance of the
load-tested pile and all at the service piles.
http://www.UConOnline.com
Underground Construction - January 2020
Table of Contents for the Digital Edition of Underground Construction - January 2020
Contents
Underground Construction - January 2020 - FC
Underground Construction - January 2020 - IFC
Underground Construction - January 2020 - Contents
Underground Construction - January 2020 - 4
Underground Construction - January 2020 - 5
Underground Construction - January 2020 - 6
Underground Construction - January 2020 - 7
Underground Construction - January 2020 - 8
Underground Construction - January 2020 - 9
Underground Construction - January 2020 - 10
Underground Construction - January 2020 - 11
Underground Construction - January 2020 - 12
Underground Construction - January 2020 - 13
Underground Construction - January 2020 - 14
Underground Construction - January 2020 - 15
Underground Construction - January 2020 - 16
Underground Construction - January 2020 - 17
Underground Construction - January 2020 - 18
Underground Construction - January 2020 - 19
Underground Construction - January 2020 - 20
Underground Construction - January 2020 - 21
Underground Construction - January 2020 - 22
Underground Construction - January 2020 - 23
Underground Construction - January 2020 - 24
Underground Construction - January 2020 - 25
Underground Construction - January 2020 - 26
Underground Construction - January 2020 - 27
Underground Construction - January 2020 - 28
Underground Construction - January 2020 - 29
Underground Construction - January 2020 - 30
Underground Construction - January 2020 - 31
Underground Construction - January 2020 - 32
Underground Construction - January 2020 - 33
Underground Construction - January 2020 - 34
Underground Construction - January 2020 - 35
Underground Construction - January 2020 - 36
Underground Construction - January 2020 - 37
Underground Construction - January 2020 - 38
Underground Construction - January 2020 - 39
Underground Construction - January 2020 - 40
Underground Construction - January 2020 - 41
Underground Construction - January 2020 - 42
Underground Construction - January 2020 - 43
Underground Construction - January 2020 - 44
Underground Construction - January 2020 - 45
Underground Construction - January 2020 - 46
Underground Construction - January 2020 - 47
Underground Construction - January 2020 - 48
Underground Construction - January 2020 - 49
Underground Construction - January 2020 - 50
Underground Construction - January 2020 - 51
Underground Construction - January 2020 - 52
Underground Construction - January 2020 - 53
Underground Construction - January 2020 - 54
Underground Construction - January 2020 - IBC
Underground Construction - January 2020 - BC
https://www.nxtbook.com/gulfenergyinfo/gulfpub/underground-construction-december-2022
https://www.nxtbook.com/gulfenergyinfo/gulfpub/uc_202211
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202210
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202209
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202208
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202207
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202206
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202205
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202204
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202203
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202202
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202201
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202112
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202111
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202110
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202109
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202108
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202107
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202106
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202105
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202104
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202103
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202102
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202101
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202012
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202011
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202010
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202009
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202008
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202007
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202006
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202005
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202004
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202003
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202002
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202001
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201912
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201911
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201910
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201909
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201908
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201907
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201906
https://www.nxtbook.com/nxtbooks/gulfpub/uesi_summer2019
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201905
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201904
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201903
https://www.nxtbook.com/nxtbooks/gulfpub/uesi_winter2019
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201902
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201901
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201812
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201811
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201810
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201809
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201808
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201807
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201806
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201805
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201804
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201803
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201802
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201801
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201712
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201711
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201710
https://www.nxtbook.com/nxtbooks/gulfpub/uc_ditchwitch
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201709
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201708
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201707
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201706
https://www.nxtbookmedia.com