Effect Of Number Of Pile In Pile-Raft System In Organic Clay

Thoidingjam, Dinachandra; Prasad, Dr.D S V; Devi, Konsam Rambha

doi:10.9790/1684-1304078388

Cited by 6 publications

(1 citation statement)

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“…Horikoshi and Randolph [2] used centrifuge modelling to investigate behaviour of piled raft foundations with different pile numbers, and found out that a small centred pile group could reduce the differential settlement of a PR effectively. Recently, other experiments were conducted to investigate more detailed on how the pile number, pile size, pile spacing and raft size affect the settlement and the load sharing of PRs on clay [3][4][5][6][7][8][9]. From the literature review, most of the experiments aimed to investigate the immediate behaviour of PRs until the full construction load, disregarding long-term behaviour after full construction load was achieved.…”

Section: Introductionmentioning

confidence: 99%

Untitled

2020

GEOMATE

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When designing a piled raft foundation (PR) on clay, it is necessary to understand the timedependent behaviour of the foundation because stresses and strains in clayey ground will change for a long time after the construction, due to consolidation processes of the ground. This paper, therefore, aims to investigate the long-term behaviour of PRs through small-scale physical modelling. In the experiments, the model ground was prepared by consolidating a slurry mixture of Kasaoka clay and silica sand. The model foundations consisted of a square raft having a width of 125 mm and 4 or 9 piles having a length of 150 mm. For the loading test of PR, vertical load was increased by multiple steps and each load step was maintained to observe the long-term behaviour. The experimental results show that the piles effectively suppress the foundation settlement for relatively smaller loads. In the primary consolidation stage, the pile resistance increases with elapsed time while the raft resistance decreases. This is caused by the dissipation of pore water pressure and the corresponding increase of effective stresses of soils below the raft base. In the secondary consolidation stage, for the case of 4-pile PR, the resistances of both the raft and piles are stable although creep settlement continues. For the secondary consolidation stage of 9-pile PR, pile load reduces slightly under smaller applied loads and stable under larger applied loads. In general, the 9-pile PR reduces the foundation settlement significantly under smaller applied loads, compared to the 4-pile PR.

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Section: Introductionmentioning

confidence: 99%

Untitled

2020

GEOMATE

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Comparative Performance Assessment of Adsorbents for CO₂ Capture via Physisorption in a Diesel Engine Exhaust

Maniarasu

2023

CLEAN Soil Air Water

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The atmospheric carbon dioxide (CO2) concentration has been consistently increasing each year throughout the world. Internal combustion (IC) engines are significant contributors to CO2 emissions. This study explores the possibility of employing effective biomass‐based adsorbents to mitigate CO2 from a diesel engine exhaust. As a first step, two distinct agro‐wastes, namely, i) corn cob and ii) sugarcane bagasse, are used to prepare inexpensive and efficient activated carbons. The two main steps in the activated carbon preparation are a) carbonization and b) activation. The derived activated carbons are subjected to discrete analytical techniques to examine their structural and textural characteristics, surface functional groups, and physical, chemical, and adsorptive properties. As a second step, the exhaust treatment chamber unit is filled with the adsorbents one by one and is connected to the exhaust of the constant pressure heat addition engine. A single‐cylinder, four‐stroke, naturally‐aspirated, air‐cooled, direct injection (DI) compression ignition (CI) engine is used in the experimental investigations. The essential findings show that ≈68 and 60% of CO2 emissions are adsorbed in the test engine by utilizing corn cob and sugarcane bagasse adsorbents, respectively. The results show that during the D100 and JME20 operations, the prospective adsorbents can curb more than 40% of overall CO2 emissions.

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Settlement and pile response in a long-term vertically loaded piled raft foundation model on saturated clay - Experimental study

Hoang

Matsumoto

Dao

2019

Lecture Notes in Civil Engineering

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Effect Of Number Of Pile In Pile-Raft System In Organic Clay

Cited by 6 publications

References 4 publications

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Untitled

Comparative Performance Assessment of Adsorbents for CO₂ Capture via Physisorption in a Diesel Engine Exhaust

Settlement and pile response in a long-term vertically loaded piled raft foundation model on saturated clay - Experimental study

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Effect Of Number Of Pile In Pile-Raft System In Organic Clay

Cited by 6 publications

References 4 publications

Untitled

Untitled

Comparative Performance Assessment of Adsorbents for CO2 Capture via Physisorption in a Diesel Engine Exhaust

Settlement and pile response in a long-term vertically loaded piled raft foundation model on saturated clay - Experimental study

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Comparative Performance Assessment of Adsorbents for CO₂ Capture via Physisorption in a Diesel Engine Exhaust