DFI Magazine September/October 2020 - 93
FEATURE
Six piles in soil pit for lateral load testing
ARTICLE
Lateral Loading of Rock-Socketed Piles
Constructing bored piles (drilled shafts) with rock sockets offers an
ideal solution to maximize resistance against vertical and
horizontal loading. However, closely spaced transverse
reinforcements in the rock socket that are required for analysis
and/or code requirements can obstruct concrete flow and pose a
high risk of creating defective concrete. Moreover, it is unknown
whether this much transverse reinforcement is actually needed to
ensure adequate pile performance.
When designing rock-socketed pile foundations to address
combined vertical and lateral loading, the lateral load analysis is
typically performed by representing geomaterials with springs of
different stiffness that simulate the load-deformation behavior of
the respective layers. This method, referred to as a p-y analysis, is
derived from the bending equation of a beam supported on a bed of
springs. When this method is used to predict shear and moment
demands of a rock-socketed shaft, the abrupt decrease in moment
immediately below the soil-rock interface produces a drastic
"spike" in the pile shear force. It is often convenient to quantify
shear amplification as a function of the shear imposed at the pile
head; the p-y method has been known to result in amplified rocksocket shear on the order of 5 to 10 times the pile head shear. This
AUTHORS
General pile configuration, rebar layout example (for Specimen 1)
Anne Lemnitzer, Ph.D., P.E., and Rabie Farrag, University of California, Irvine, and Benjamin Turner, Ph.D., P.E., G.E.,
Dan Brown and Associates
DEEP FOUNDATIONS * SEPT/OCT 2020 * 93
DFI Magazine September/October 2020
Table of Contents for the Digital Edition of DFI Magazine September/October 2020
CONTENTS
CONTENTS 2
DFI Magazine September/October 2020 - Intro
DFI Magazine September/October 2020 - 1
DFI Magazine September/October 2020 - 2
DFI Magazine September/October 2020 - CONTENTS
DFI Magazine September/October 2020 - 4
DFI Magazine September/October 2020 - CONTENTS 2
DFI Magazine September/October 2020 - 6
DFI Magazine September/October 2020 - 7
DFI Magazine September/October 2020 - 8
DFI Magazine September/October 2020 - 9
DFI Magazine September/October 2020 - 10
DFI Magazine September/October 2020 - 11
DFI Magazine September/October 2020 - 12
DFI Magazine September/October 2020 - 13
DFI Magazine September/October 2020 - 14
DFI Magazine September/October 2020 - 15
DFI Magazine September/October 2020 - 16
DFI Magazine September/October 2020 - 17
DFI Magazine September/October 2020 - 18
DFI Magazine September/October 2020 - 19
DFI Magazine September/October 2020 - 20
DFI Magazine September/October 2020 - 21
DFI Magazine September/October 2020 - 22
DFI Magazine September/October 2020 - 23
DFI Magazine September/October 2020 - 24
DFI Magazine September/October 2020 - 25
DFI Magazine September/October 2020 - 26
DFI Magazine September/October 2020 - 27
DFI Magazine September/October 2020 - 28
DFI Magazine September/October 2020 - 29
DFI Magazine September/October 2020 - 30
DFI Magazine September/October 2020 - 31
DFI Magazine September/October 2020 - 32
DFI Magazine September/October 2020 - 33
DFI Magazine September/October 2020 - 34
DFI Magazine September/October 2020 - 35
DFI Magazine September/October 2020 - 36
DFI Magazine September/October 2020 - 37
DFI Magazine September/October 2020 - 38
DFI Magazine September/October 2020 - 39
DFI Magazine September/October 2020 - 40
DFI Magazine September/October 2020 - 41
DFI Magazine September/October 2020 - 42
DFI Magazine September/October 2020 - 43
DFI Magazine September/October 2020 - 44
DFI Magazine September/October 2020 - 45
DFI Magazine September/October 2020 - 46
DFI Magazine September/October 2020 - 47
DFI Magazine September/October 2020 - 48
DFI Magazine September/October 2020 - 49
DFI Magazine September/October 2020 - 50
DFI Magazine September/October 2020 - 51
DFI Magazine September/October 2020 - 52
DFI Magazine September/October 2020 - 53
DFI Magazine September/October 2020 - 54
DFI Magazine September/October 2020 - 55
DFI Magazine September/October 2020 - 56
DFI Magazine September/October 2020 - 57
DFI Magazine September/October 2020 - 58
DFI Magazine September/October 2020 - 59
DFI Magazine September/October 2020 - 60
DFI Magazine September/October 2020 - 61
DFI Magazine September/October 2020 - 62
DFI Magazine September/October 2020 - 63
DFI Magazine September/October 2020 - 64
DFI Magazine September/October 2020 - 65
DFI Magazine September/October 2020 - 66
DFI Magazine September/October 2020 - 67
DFI Magazine September/October 2020 - 68
DFI Magazine September/October 2020 - 69
DFI Magazine September/October 2020 - 70
DFI Magazine September/October 2020 - 71
DFI Magazine September/October 2020 - 72
DFI Magazine September/October 2020 - 73
DFI Magazine September/October 2020 - 74
DFI Magazine September/October 2020 - 75
DFI Magazine September/October 2020 - 76
DFI Magazine September/October 2020 - 77
DFI Magazine September/October 2020 - 78
DFI Magazine September/October 2020 - 79
DFI Magazine September/October 2020 - 80
DFI Magazine September/October 2020 - 81
DFI Magazine September/October 2020 - 82
DFI Magazine September/October 2020 - 83
DFI Magazine September/October 2020 - 84
DFI Magazine September/October 2020 - 85
DFI Magazine September/October 2020 - 86
DFI Magazine September/October 2020 - 87
DFI Magazine September/October 2020 - 88
DFI Magazine September/October 2020 - 89
DFI Magazine September/October 2020 - 90
DFI Magazine September/October 2020 - 91
DFI Magazine September/October 2020 - 92
DFI Magazine September/October 2020 - 93
DFI Magazine September/October 2020 - 94
DFI Magazine September/October 2020 - 95
DFI Magazine September/October 2020 - 96
DFI Magazine September/October 2020 - 97
DFI Magazine September/October 2020 - 98
DFI Magazine September/October 2020 - 99
DFI Magazine September/October 2020 - 100
DFI Magazine September/October 2020 - 101
DFI Magazine September/October 2020 - 102
DFI Magazine September/October 2020 - 103
DFI Magazine September/October 2020 - 104
DFI Magazine September/October 2020 - 105
DFI Magazine September/October 2020 - 106
DFI Magazine September/October 2020 - 107
DFI Magazine September/October 2020 - 108
DFI Magazine September/October 2020 - 109
DFI Magazine September/October 2020 - 110
DFI Magazine September/October 2020 - 111
DFI Magazine September/October 2020 - 112
DFI Magazine September/October 2020 - 113
DFI Magazine September/October 2020 - 114
DFI Magazine September/October 2020 - 115
DFI Magazine September/October 2020 - 116
DFI Magazine September/October 2020 - 117
DFI Magazine September/October 2020 - 118
DFI Magazine September/October 2020 - 119
DFI Magazine September/October 2020 - 120
DFI Magazine September/October 2020 - 121
DFI Magazine September/October 2020 - 122
DFI Magazine September/October 2020 - 123
DFI Magazine September/October 2020 - 124
DFI Magazine September/October 2020 - 125
DFI Magazine September/October 2020 - 126
DFI Magazine September/October 2020 - 127
DFI Magazine September/October 2020 - 128
DFI Magazine September/October 2020 - 129
DFI Magazine September/October 2020 - 130
DFI Magazine September/October 2020 - 131
DFI Magazine September/October 2020 - 132
DFI Magazine September/October 2020 - 133
DFI Magazine September/October 2020 - 134
DFI Magazine September/October 2020 - 135
DFI Magazine September/October 2020 - 136
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/july-august-2024
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/may-june-2024
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/march-april-2024
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/january-february-2024
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/november-december-2023
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/september-october-2023
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/july-august-2023
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/may-june-2023
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/Jan-feb-2021_nxtbook
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/july-august-2021
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/march-april-2023
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/january-february-2023
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/november-december-2022
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/september-october-2022
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/july-august-2022
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/may-june-2022
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/march-april-2022
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/january-february-2022
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/november-december-2021
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/sept-oct-2021
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/july-aug-2021
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/may-june-2021
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/march-april-2021
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/january-february-2021
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/november-december-2020
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/September-October-2020
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/may-june-2020
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/march-april-2020
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/january-february-2020
https://www.nxtbook.com/dfi/DEEP-FOUNDATIONS/july-august-2020
https://www.nxtbookmedia.com