Effect of Slope and Loading Direction on Laterally Loaded Piles in Cohesionless Soil

Muthukkumaran, Kasinathan

doi:10.1061/(asce)gm.1943-5622.0000293

Cited by 95 publications

(11 citation statements)

References 14 publications

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“…e study proposed a new p-y criterion for piles near clay slope and found that below a critical depth which increases with the increase of the pile to slope crest, the presence of the slope affects the distribution of ultimate lateral pile load p u . Based on the model tests in cohesionless soil, Muthukkumaran [17] found that when the pile is located at a distance of more than 15 times the pile diameter from the slope ground, the existence of the slope has a negligible effect on the bearing capacity of the pile. Nimityongskul et al [18,19] reported full-scale test results for piles near a clay slope, which show that the effect of the slope is significantly reduced at a distance of 4 times the pile diameter and fully disappears at 8 times the pile diameter.…”

Section: Introductionmentioning

confidence: 99%

A Simplified Calculation Method for the Near‐Slope Laterally Loaded Pile Based on a Passive Wedge Model

Yang

Deng

Wang

2019

Advances in Civil Engineering

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When a pile is placed near the slope, the lateral loading capacity of the pile decreases significantly due to the weakening effect of soil resistance near the slope. As such, a modified soil passive wedge model for near-slope laterally loaded piles is presented to consider the weakening effect in this paper. According to development depth of different wedges, the shapes of soil passive wedge can be classified into three sorts, so as to fully analyze the influence of the slope shape and the distance from the pile center to the slope crest. On this basis, a concept of equivalent depth is proposed considering the differences of laterally loaded piles near the slope and in the horizontal ground. Besides, the unit ultimate soil resistance, which can be obtained along the different depths of pile, is introduced into the p-y curve of the soil, for achieving solution methods of internal force and displacement of laterally loaded piles under the slope weakening effect. The results of laboratory model and field tests on laterally loaded piles are compared with the proposed method, demonstrating its validity and accuracy. Furthermore, the influence of the near-slope distance on the loading capacity of the pile is fully analyzed in detail, indicating the critical near-slope distance is increasing with the increase of the undrained strength, while independent of the slope angle.

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Section: Introductionmentioning

confidence: 99%

A Simplified Calculation Method for the Near‐Slope Laterally Loaded Pile Based on a Passive Wedge Model

Yang

Deng

Wang

2019

Advances in Civil Engineering

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“…According to the curve distribution results under different working conditions in the test, the slope was applied to the shallow nonadhesive soil foundation. Based on the model test of piles in noncohesive soil slopes, Muthukkumaran [10] discussed the effects of slope ratio, soil parameters, loading direction, and pile foundation position on pile foundation. Nimityongskul et al [11] carried out a series of full-scale lateral load tests of fully instrumented piles in cohesive soils to access the lateral response of piles in free field and near a slope condition.…”

Section: Introductionmentioning

confidence: 99%

Effect of Loading Direction and Slope on Laterally Loaded Pile in Sloping Ground

Chong

Liu

et al. 2018

Advances in Civil Engineering

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A series of three-dimensional finite element analyses were performed to study the behavior of piles in sloping ground under undrained lateral loading conditions. The analyses have been conducted for slopes with different angles and two loading directions. The obtained results show that as the slope increases, it can cause greater lateral displacement and internal force of the pile. In addition, the increase of the slope ratio will cause the position of the maximum bending moment and soil resistance zero point of the pile to move downward, further increasing the pile deflection. Furthermore, when the pile distance from slope crest B < 7D, the displacement and internal force development of the pile under toward loading is more obvious. When the pile distance from the slope crest exceeds 7D, the effect of loading direction on the pile can be neglected.

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“…The sand classified as the poorly graded sand (SP) according to IS 1498. Muthukkumaran, 2014) was used to fill the sand uniformly in test tank for the required density. The equipment was made of 2mm thick galvanised iron (GI) sheet.…”

Section: Sandmentioning

confidence: 99%

Behaviour of laterally loaded socketed pile in multi-layered soil-rock profile

Muthukkumaran

Prakash

2015

JGS Special Publication

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The structure has to be socketed into hard strata to enhance the efficiency of load carrying capacity for a substructure carrying heavy lateral load. In case of non-displacement piles, drilling the hard strata is a time consuming and expensive process. A system of experimental program was conducted on an instrumented model pile to study the behaviour of pile socketing under lateral load by varying its depth of socketing and the free standing height of pile above the ground level. The experimental results showed that increasing the depth of socketing significantly increases the lateral load carrying capacity of pile. At 3D depth socketing with 800 mm (L e /L=33.33%) free standing height, the capacities of 38.1 mm and 50.8 mm diameter piles were increased respectively by 4 and 8.23 times the capacity of 25.4 mm diameter pile. Compared with pile bearing over hard strata, socketing the pile into hard strata reduces the lateral displacements substantially

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Effect of Slope and Loading Direction on Laterally Loaded Piles in Cohesionless Soil

Cited by 95 publications

References 14 publications

A Simplified Calculation Method for the Near‐Slope Laterally Loaded Pile Based on a Passive Wedge Model

A Simplified Calculation Method for the Near‐Slope Laterally Loaded Pile Based on a Passive Wedge Model

Effect of Loading Direction and Slope on Laterally Loaded Pile in Sloping Ground

Behaviour of laterally loaded socketed pile in multi-layered soil-rock profile

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