A STUDY OF MULTILAYER SOIL-FLY ASH LAYERED SYSTEM UNDER CYCLIC LOADING

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KHAN M.A.; USMANI A.; SHAH S.S.; ABBAS H.

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Paper Information

Journal: INTERNATIONAL JOURNAL OF CIVIL ENGINEERING Year:2008 | Volume:6 | Issue:2 Page(s): 73-89

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Title

A STUDY OF MULTILAYER SOIL-FLY ASH LAYERED SYSTEM UNDER CYCLIC LOADING

Author(s)

KHAN M.A. | USMANI A. | SHAH S.S. | ABBAS H. | Issue Writer Certificate

Keywords

LAYERED SOILS

CYCLIC LOADING

TRIAXIAL TESTS

FLY ASH

SHEAR STRENGTH

Abstract

In the present investigation, the cyclic load deformation behavior of soil-fly ash layered system is studied using different intensities of failure load (I = 25%, 50% and 75%) with varying number of cycles (N = 10, 50 and 100). An attempt has been made to establish the use of FLY ASH as a fill material for embankments of Highways and Railways and to examine the effect of CYCLIC LOADING on the layered samples of soil and FLY ASH.The number of cycles, confining pressures and the intensity of loads at which loading unloading has been performed were varied. The resilient modulus, permanent strain and cyclic strength factor are evaluated from the test results and compared to show their variation with varying stress levels. The nature of stress-strain relationship is initially linear for low stress levels and then turns non-linear for high stress levels. The test results reveal two types of failure mechanisms that demonstrate the dependency of consolidated undrained SHEAR STRENGTH tests of soil-fly ash matrix on the interface characteristics of the LAYERED SOILS under CYCLIC LOADING conditions. Data trends indicate greater stability of layered samples of soil-fly ash matrix in terms of failure load (i) at higher number of loading-unloading cycles, performed at lower intensity of deviatoric stress, and (ii) at lower number of cycles but at higher intensity of deviatoric stress.

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APA: Copy

KHAN, M.A., USMANI, A., SHAH, S.S., & ABBAS, H.. (2008). A STUDY OF MULTILAYER SOIL-FLY ASH LAYERED SYSTEM UNDER CYCLIC LOADING. INTERNATIONAL JOURNAL OF CIVIL ENGINEERING, 6(2), 73-89. SID. https://sid.ir/paper/271780/en

Vancouver: Copy

KHAN M.A., USMANI A., SHAH S.S., ABBAS H.. A STUDY OF MULTILAYER SOIL-FLY ASH LAYERED SYSTEM UNDER CYCLIC LOADING. INTERNATIONAL JOURNAL OF CIVIL ENGINEERING[Internet]. 2008;6(2):73-89. Available from: https://sid.ir/paper/271780/en

IEEE: Copy

M.A. KHAN, A. USMANI, S.S. SHAH, and H. ABBAS, “A STUDY OF MULTILAYER SOIL-FLY ASH LAYERED SYSTEM UNDER CYCLIC LOADING,” INTERNATIONAL JOURNAL OF CIVIL ENGINEERING, vol. 6, no. 2, pp. 73–89, 2008, [Online]. Available: https://sid.ir/paper/271780/en

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