Behaviour of Isolated Bored Enlarged Base Pile under Sustained Vertical Loads

Chandrasekaran, V.; Garg, K.G.; Prakash, Chandra

doi:10.3208/sandf1972.18.2_1

Cited by 6 publications

(2 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Under-reamed piles are cast-in-place concrete piles having one or more under-ream bulbs along their stems, which enhances pile capacity under compression and tension loads [1]. These piles can lessen the impact of negative skin friction and enhance tip resistance and pile shaft friction [2]. Under-reamed piles which have projections known as bulbs or under-reams which increases its load-carrying capacity under compression, tension, and lateral loading [3][4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Studies on the Performance of Under-reamed Piles in Sandy Soil through Model Tests

Nariyelil,

Minu,

Mathews Abraham

et al. 2023

Challenges and Advancements in Civil Engineering

View full text Add to dashboard Cite

Predicting pile behavior and estimating pile capacity in different soil conditions are critical in building industry. This paper describes an experimental study which is aimed to comprehend some factors affecting the under-reamed pile capacity in sand i.e. the bulb angle and bulb spacing. It also compares the variation of capacities of these piles in sand in both loose and dense state. A total of 9 model piles were tested, which included four single under-reamed piles, four double under-reamed piles and a normal pile. From the experimental studies, load–settlement curves are obtained and the pile capacities are determined using various criteria reported in the literatures. The capacity increased to at least twice the value when an under-ream bulb was introduced to a normal pile. The pile with bulb angle of 450 and with bulb spacing of 1.25 times the bulb diameter showed maximum capacity for single under-reamed and double under-reamed piles, respectively. The pile capacity increased with increase in sand density. The test results are in agreement with the relevant Indian Standards.

show abstract

Section: Introductionmentioning

confidence: 99%

Studies on the Performance of Under-reamed Piles in Sandy Soil through Model Tests

Nariyelil,

Minu,

Mathews Abraham

et al. 2023

Challenges and Advancements in Civil Engineering

View full text Add to dashboard Cite

show abstract

“…Piles are increasingly used to effectively transfer the superstructure loads to the sub-soil when the soil conditions at the site and specific other functional requirements discard the use of shallow foundations (Chandrasekaran et al, 1978). The bored piles are usually bored by special machines and with the aid of using bentonite liquid, water, or polymer (Tomlinson and Woodward, 2007).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Influence of De-sanding (Recycling System) Process on the Pile Bearing Capacity Using Full Scale Models

Hasan

Al-Saidi

2022

jcoeng

View full text Add to dashboard Cite

The present study investigates the effect of the de-sanding (recycling system) on the bearing capacity of the bored piles. Full-scale models were conducted on two groups of piles, the first group was implemented without using this system, and the second group was implemented using the recycling system. All piles were tested by static load test, considering the time factor for which the piles were implemented. The test results indicated a significant and clear difference in the bearing capacity of the piles when using this system. The use of the recycling system led to a significant increase in the bearing capacity of the piles by 50% or more. Thus it was possible to reduce the pile length by (15 % or more) thus, and implementation costs were significantly reduced. Furthermore, casting time for the pile group in which the system is used is less than for the pile group that did not use it (approximately half an hour per pile), and the amount of concrete was greater by an average of 2 cubic meters for each pile.

show abstract

Model test study on single and group under-reamed piles in sand under compression and tension

Majumder

Chakraborty

Kumawat

2021

Innov. Infrastruct. Solut.

View full text Add to dashboard Cite

Behaviour of Isolated Bored Enlarged Base Pile under Sustained Vertical Loads

Cited by 6 publications

References 13 publications

Studies on the Performance of Under-reamed Piles in Sandy Soil through Model Tests

Studies on the Performance of Under-reamed Piles in Sandy Soil through Model Tests

Evaluation of the Influence of De-sanding (Recycling System) Process on the Pile Bearing Capacity Using Full Scale Models

Model test study on single and group under-reamed piles in sand under compression and tension

Contact Info

Product

Resources

About