An Experimental Study on Pile Spacing Effects under Lateral Loading in Sand

Khari, Mahdy; Kassim, Khairul Anuar; Adnan, Azlan

doi:10.1155/2013/734292

Cited by 29 publications

(11 citation statements)

References 17 publications

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“…The inner faces of the test box were marked at 50 mm intervals to assist accurate formation of sand stacking inside the test box during the tests. The dimensions of the test box have been chosen according to previous researches taking into consideration the boundary conditions influence of the test box (Khari et al, 2013;Al-abboodi and Sabbagh, 2017).…”

Section: Testing Boxmentioning

confidence: 99%

Experimental investigation of batter pile groups behaviour subjected to lateral soil movement in sand

Sabbagh

Al-Salih

Al-abboodi

2019

International Journal of Geotechnical Engineering

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A series of laboratory model tests on batter pile groups embedded in sand was carried out in a specially designed testing box. The lateral responses were investigated for 1 × 2 capped batter pile groups when subjected to lateral soil movements (passive loading) with different configurations; Vertical-Vertical (VVL), Batter-Vertical (BVL), Vertical-Batter (VBL) andBoth-Batter (BBL). The effect of pile group arrangement and batter angle on the bending moment, shear force, soil reaction, pile rotation and deflection behaviour of the passive batter pile groups were studied. It is observed that the behaviour of the individual piles in a group was significantly affected by the batter angle and the pile group arrangement. It is also shown that under passive loading, batter pile groups with (BBL) configuration of (-10 o , +10 o ) offered more resistance to the lateral soil movement compared to other pile group arrangements, while (VVL) configuration offered the least resistance.

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Section: Testing Boxmentioning

confidence: 99%

Experimental investigation of batter pile groups behaviour subjected to lateral soil movement in sand

Sabbagh

Al-Salih

Al-abboodi

2019

International Journal of Geotechnical Engineering

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“…Piled raft foundation under lateral loading, the size of the box should be extended up to 12d and 4d, where d is a pile diameter, in the direction parallel and perpendicular to the lateral load respectively. Additionally, a distance of at least 6d must be kept below the pile tip, refer to [14].…”

Section: Testing Boxmentioning

confidence: 99%

Effect of Cavities on the Behaviour of Model Pile under Axial Loading in Sand

Al-Jazaairry¹,

Toma-Sabbagh²

2017

Proceedings of the 2nd World Congress on Civil, Structural, and Environmental Engineering

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Presence of cavities in soils is an important area of interest within the field of geotechnical engineering. A better understanding of the behaviour of such soils, particularly in locations where the presence of gypsum deposits is apparent, will have a large impact on the stability of foundations and allows designers and engineers to have a convincing explanation of this phenomenon on the stability of foundations in general. The research offers an experimental investigation to study the performance of axially loaded piles embedded in sandy soils with cavities. The experimental study comprised a full laboratory testing programme carried out on small scale piles embedded in predetermined cavities within a soil mass. The experimental model has the capability to investigate the effect of different cavity locations on the ultimate pile resistances. Thirteen cavity locations were chosen to study their influence on the ultimate carrying load of single pile. It was concluded that the maximum ultimate carrying load of the pile is reduced by the presence of the cavity within the soil mass. This reduction varies according to the cavity location. The effect of cavity's presence on the ultimate bearing capacity of pile ranged from 0% to 30.82% for side cavities, while the range of reduction factor for cavities under the pile tip is from 31.58% to 43.4%. The reduction in pile capacity increases when the cavity is closer to the pile. Also, pile settlement value without cavity is less than the settlement of the same pile with cavity.

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“…The general behavior of a pile group is related to efficiency. (Khari, et al, 2013) explained that an increase in the number of piles in-group decreases the group efficiency owing to the increasing of overlapped stress zones and active wedge. (Ivšić, et al 2013) studied the assessment of empirical equation and in-situ pile load test conducted to calculate bearing capacity and settlement of bored piles in soft soils.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Single and Group Bored Piles Settlement Based on Field Test and Theoretical Methods

Al-Kinani

Ahmed

2020

jcoeng

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Bored piles settlement behavior under vertical loaded is the main factor that affects the design requirements of single or group of piles in soft soils. The estimation of bored pile settlement is a complicated problem because it depends upon many factors which may include ground conditions, validation of bored pile design method through testing and validation of theoretical or numerical prediction of the settlement value. In this study, a prototype single and bored pile group model of arrangement (1*1, 1*2 and 2*2) for total length to diameter ratios (L/D) is 13.33 and clear spacing three times of diameter, subjected to vertical axial loads. The bored piles model used for the test was 2000 mm in length, and 150 mm in diameter has been constructed in soft clayey soils. Furthermore, different theoretical methods have been used for the estimation of bored pile settlement, such as Poulos and Vesic's methods and then their comparison with the pile load test data based on the quick pile load test as presented in (ASTM-D1143, 2007). In general, the theoretical method for estimation the bored pile settlement by Poulos and Vesic's gives higher value of the settlement for the single and group bored pile compared to the pile settlement results obtained from field pile load test data. Therefore, it is not recommended to be used for soft clayey soils. On the other hand, Hansen’s 90% and Butler and Hoy’s results may be considered reliable interpretation method to compute the settlement of single and group bored pile.

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An Experimental Study on Pile Spacing Effects under Lateral Loading in Sand

Cited by 29 publications

References 17 publications

Experimental investigation of batter pile groups behaviour subjected to lateral soil movement in sand

Experimental investigation of batter pile groups behaviour subjected to lateral soil movement in sand

Effect of Cavities on the Behaviour of Model Pile under Axial Loading in Sand

Comparison of Single and Group Bored Piles Settlement Based on Field Test and Theoretical Methods

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