scholarly journals PERFORMANCE OF A SINGLE PILE UNDER COMBINED AXIAL AND LATERAL LOADS IN LAYERED SANDY SOIL

2018 ◽  
Vol 2018 (01) ◽  
pp. 121-136 ◽  
Author(s):  
Saad Farhan Ibrahim ◽  
◽  
Madhat Shakir Al-Soud ◽  
Fawaz Ibrahim Al-Asadi ◽  
◽  
...  
Keyword(s):  
Sandy Soil ◽  
Single Pile ◽  
Lateral Loads

Development of the cyclic p–y curve for a single pile in sandy soil

2017 ◽  
Vol 36 (3) ◽  
pp. 351-359
Author(s):  
Sung-Ha Baek ◽  
Joonyoung Kim ◽  
Seung-Hwan Lee ◽  
Choong-Ki Chung
Keyword(s):  
Sandy Soil ◽  
Single Pile

scholarly journals Vertical Displacement of a Single Pile Due to Axial & Lateral Loads

2021 ◽  
Vol 841 (1) ◽  
pp. 012006
Author(s):  
S Gunawan ◽  
N S Surjandari ◽  
B Setiawan ◽  
Y M P Purwana
Keyword(s):  
Vertical Displacement ◽  
Single Pile ◽  
Lateral Loads

Effect of Relative Density on P-Y Backbone Curves for Cyclic Lateral Load on Pile Foundations in Sandy Soil

2014 ◽  
Author(s):  
Sung-Ha Baek ◽  
Joon-Young Kim ◽  
Seung-Hwan Lee ◽  
Choong-Ki Chung
Keyword(s):  
Relative Density ◽  
Sandy Soil ◽  
Sandy Soils ◽  
Pile Foundations ◽  
Test Results ◽  
Lateral Loads ◽  
Laterally Loaded Piles ◽  
Cyclic Lateral Load ◽  
Subgrade Modulus ◽  
Laterally Loaded

Pile foundations installed to support offshore structures are primarily subjected to cyclic lateral loads due to wind, and waves. The p-y curve method, which represents a nonlinear relation between soil-pile reaction and lateral pile deflection, has been used to design cyclic laterally loaded piles. Recommended by the American Petroleum Institute (API) [10] and generally adopted to evaluate the behavior of static and cyclic laterally loaded piles installed in sandy soils, the API p-y curve contains a reduction factor for the initial horizontal subgrade modulus in order to take cyclic effects into consideration. When pile foundations are subjected to cyclic lateral loads, however, the initial horizontal subgrade modulus can both decrease and increase according to the relative density of the soil. In this paper, a series of cyclic lateral load model tests were performed on a preinstalled aluminum flexible pile to examine its cyclic lateral response under different relative density conditions. Model piles were embedded in sandy soils with relative densities of 40%, 70%, and 90% and were subjected to static as well as cyclic lateral loads. From the test results, cyclic p-y backbone curves were derived and compared with static p-y curves in identical soil conditions. Test results showed that the initial horizontal subgrade modulus increased for the model pile installed in sandy soil of 40% relative density, while decreased in relative densities of 70% and 90%. In addition, the infinite depth, above which cyclic lateral loads were supported, was evaluated and the test results were compared with the API p-y curve.

scholarly journals Lateral Performance for Long Pile Subjected to Simultaneous Axial and Lateral Loads in Dense Sand: An Experimental Study

2019 ◽  
Vol 12 (2) ◽  
pp. 110-114
Author(s):  
Jasim M. Abbas
Keyword(s):  
Experimental Study ◽  
Slenderness Ratio ◽  
The Other ◽  
Laboratory Model ◽  
Single Pile ◽  
Lateral Loads ◽  
Dense Sand ◽  
Other Hand ◽  
Pile Response

The present study focus on the investigation ofthe response of single pile when subjected to both axial and lateral loads simultaneously in dense sand. To study this issue, laboratory model was locally improved to examine the piles under this kind of loading. The dense sand provided using raining technique. The slenderness ratio of the tested pile is ( L/D=45). On the other hand, the vertical and horizontal loads are divided into 5 stages to assess the influence of load intensities on the lateral pile response. It can be concluded that the lateral pile response is affected by changing the load intensities

scholarly journals Investigation of Static Laterally Loaded Pile in Layered Sandy Soil

2013 ◽  
Vol 8 (1-2) ◽  
pp. 83-88 ◽  
Author(s):  
SMH Uddin ◽  
MN Islam
Keyword(s):  
Sandy Soil ◽  
Lateral Load ◽  
Laboratory Model ◽  
Single Pile ◽  
Pile Head ◽  
Saturated Condition ◽  
Head Displacement ◽  
Pile Diameter ◽  
Lateral Resistance ◽  
Load Displacement

Investigation of the static lateral load resistance of pile on layered sandy soil was made by laboratory model test on single pile. The experiment was carried out with variable diameter and variable embedded length of pile on sandy soil. In this study, model pile was single pile which satisfies the Meyerhof’s Relative Stiffness limit of pile for flexible pile. Single pile embedded length, L=0.46m, 0.609m, 0.762m for pile diameter, d=0.013m, 0.019m, 0.026m, respectively. And for surcharge condition embedded length of single pile, L=0.609m and surcharge of pressure, P=3369.55Kg/m3, P=6739.1 Kg/m3 and P=13478.20Kg/m3 for each diameter and for saturated condition of pile diameter, d=0.013m. These experiments were conducted with local sand of Rajshahi region and domar sand; available in Bangladesh. Lateral static loads were applied in the single by a static lateral load set up arrangement. Due to the static lateral load the pile was deflected. The load-displacement response, ultimate resistance of pile has been qualitatively and quantitatively investigated in the experiment. The lateral resistance of pile obtains by experiment and the ultimate lateral load resistances obtained by analytical methods were compared. The load displacement curves are similar and non-linear. Lateral failure at a pile head displacement from 8 to 10, 7 to 9 and 6 to 8mm for single pile of d= 0.013m, 0.019m and 0.026m, respectively. In the case of saturated condition of sand a pile head displacement 15mm for single of d=0.013m. It observed that the failure load was the point at which the curve exhibits a pick or maintains continuous displacement increase with no further increase in lateral resistance. DOI: http://dx.doi.org/10.3329/jsf.v8i1-2.14630 J. Sci. Foundation, 8(1&2): 83-88, June-December 2010

Sign in / Sign up

Export Citation Format

Share Document