Experimental Investigation on Load Carrying Capacity of Micropiles in Soft Clay

2017 ◽  
Vol 43 (4) ◽  
pp. 1969-1981 ◽  
Author(s):  
Nirmali Borthakur ◽  
Ashim Kanti Dey
Keyword(s):  
Experimental Investigation ◽  
Carrying Capacity ◽  
Soft Clay ◽  
Load Carrying Capacity ◽  
Load Carrying

scholarly journals 3D FE Analysis of an Embankment Construction on GRSC and Proposal of a Design Method

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Yogendra K. Tandel ◽  
Chandresh H. Solanki ◽  
Atul K. Desai
Keyword(s):  
Carrying Capacity ◽  
Design Method ◽  
Soft Clay ◽  
Deformation Modulus ◽  
Diameter Ratio ◽  
Major Influence ◽  
Stone Column ◽  
Load Carrying Capacity ◽  
Lateral Deformation ◽  
Load Carrying

Stone column is often employed for strengthening of an embankment seated on deep soft clay. But in very soft clay having undrained shear strength less than or equal to 15 kPa, stone column may not derive adequate load carrying capacity and undergo large lateral deformation due to inadequate lateral confinement. In such circumstances, reinforcement to individual stone column by geosynthetics enhances load carrying capacity and reduces lateral deformation. This paper addresses parametric study on behaviour of embankment resting on Geosynthetic Reinforced Stone Column (GRSC) considering parameters such as stone column spacing to diameter ratio, deformation modulus of stone column material, geosynthetic stiffness, thickness of soft clay, and height of embankment by 3D numerical analysis. Finally, equation for Settlement Improvement Factor (SIF), defined as ratio between settlement of embankment without treatment and with geosynthetic reinforced stone column, is proposed that correlates with the major influence parameters such as stone column spacing to diameter ratio, deformation modulus of soft clay, and geosynthetic stiffness.

scholarly journals Bearing Capacity of Interfered Adjacent Strip Footings on Granular Bed Overlying Soft Clay: An Analytical Approach

2021 ◽  
Vol 7 (7) ◽  
pp. 1244-1263
Author(s):  
R. Shivashankar ◽  
S. Anaswara
Keyword(s):  
Bearing Capacity ◽  
Analytical Model ◽  
Carrying Capacity ◽  
Soft Clay ◽  
Punching Shear ◽  
Load Carrying Capacity ◽  
Granular Bed ◽  
Shear Model ◽  
Load Carrying ◽  
Strip Footings

In the present paper, the interference effects on bearing capacity of two and three closely spaced strip footings resting on granular bed overlying clay are being studied. A simple analytical model is proposed to predict the load-carrying capacity and the interference factor of an interfered footing, when adjacent strip footings are optimally placed on the surface of a Granular Bed (GB) overlying clay and both the footings are simultaneously loaded. A punching shear failure mechanism is envisaged in the analytical model. The load-carrying capacity of the footing is taken as the sum of total shearing resistances along the two vertical planes through the edges of the strip footing in the upper granular layer and the load-carrying capacity of the soft clay beneath the GB. Insights gained from finite element simulations are used to develop the new modified punching shear model for interfering footing. Bearing capacity can be easily calculated by using the proposed punching shear model for interfering footing. The analytical model is validated with numerical analyses and previous experimental results and found to be in reasonably good agreement. The influence of different parameters such as granular bed thickness, width of footing, number of footings are carried out in this study. Doi: 10.28991/cej-2021-03091723 Full Text: PDF

Additive metal solutions to aircraft skin corrosion

2020 ◽  
Vol 124 (1276) ◽  
pp. 872-887
Author(s):  
N. Matthews ◽  
R. Jones ◽  
D. Peng ◽  
N. Phan ◽  
T. Nguyen
Keyword(s):  
Experimental Investigation ◽  
Carrying Capacity ◽  
Particle Deposition ◽  
Corrosion Damage ◽  
Experimental Results ◽  
Load Carrying Capacity ◽  
Transport Aircraft ◽  
Load Carrying ◽  
Aircraft Skin ◽  
The Common

ABSTRACTThis paper focuses on the problem of skin corrosion on the upper wing surfaces of rib-stiffened aircraft. For maritime and military transport aircraft this often results in multiple co-located repairs. The common approach to corrosion damage in operational aircraft is to blend out the corrosion and rivet a mechanical doubler over the region. In particular this paper describes the results of a combined numerical and experimental investigation into the ability of the additive metal technology, Supersonic Particle Deposition (SPD), to restore the load-carrying capacity of rib-stiffened wing planks with simulated skin corrosion. The experimental results reveal that unrepaired skin corrosion can result in failure by yielding. The experimental results also reveal that SPD repairs to skin corrosion can restore the stress field in the structure, and can ensure that the load-carrying capability of the repaired structure is above proof load.

scholarly journals Experimental Investigation of the Load Carrying Capacity of Eccentrically Loaded Reinforced Concrete Elements Strengthened with CFRP

2013 ◽  
Vol 57 ◽  
pp. 232-237 ◽  
Author(s):  
Mykolas Daugevičius ◽  
Juozas Valivonis ◽  
Artūras Beinaravičius ◽  
Tomas Skuturna ◽  
Marius Budvytis
Keyword(s):  
Experimental Investigation ◽  
Reinforced Concrete ◽  
Carrying Capacity ◽  
Load Carrying Capacity ◽  
Load Carrying ◽  
Concrete Elements

Compressive load response of granular piles reinforced with geogrids

2004 ◽  
Vol 41 (1) ◽  
pp. 187-192 ◽  
Author(s):  
Radhey S Sharma ◽  
BR Phani Kumar ◽  
G Nagendra
Keyword(s):  
Carrying Capacity ◽  
Soft Clay ◽  
Compressive Load ◽  
Load Carrying Capacity ◽  
Load Response ◽  
Granular Pile ◽  
Load Carrying ◽  
Composite Ground ◽  
Granular Piles ◽  
Ground Load

Results are presented from a series of tests performed to investigate improvement in load-carrying capacity and reduction in bulging of a granular pile in soft clay by geogrid reinforcement. The study revealed an increase in the load-carrying capacity of geogrid-reinforced piles. The engineering behaviour improved with an increase in the number of geogrids and a decrease in the spacing between them. The bulge diameter and bulge length decreased due to the incorporation of geogrid reinforcement.Key words: granular pile, geogrids, composite ground, load-carrying capacity, bulging.

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