ANALYTICAL INVESTIGATION OF PRESSURE-SETTLEMENT RESPONSE OF FOOTING SUPPORTED BY A GEOCELL REINFORCED BED

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SHAGHAGHI T.; MOGHADDAS TAFRESHI S.N.

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Journal: Sharif Journal of Civil Engineering Year:2015 | Volume:31-2 | Issue:3.1 Page(s): 63-72

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Title

ANALYTICAL INVESTIGATION OF PRESSURE-SETTLEMENT RESPONSE OF FOOTING SUPPORTED BY A GEOCELL REINFORCED BED

Author(s)

SHAGHAGHI T. | MOGHADDAS TAFRESHI S.N. | Issue Writer Certificate

Keywords

BEARING CAPACITYQ2

GEOCELLQ1

SETTLEMENTQ2

AN- ALYTICAL METHODQ2

ELASTIC MODULUSQ2

Abstract

Geosynthetic materials such as geotextile geogride and GEOCELL (as 3D-inclusion reinforcements) have been widely used in geotechnical engineering applications for e.g. road construction layers stable embankments over soft soil longer-lasting road construction layers and expe- dient access over soft ground. An additional possible use would be to improve the BEARING CAPACITY of foot- ings. Although analytical solutions on the bearing ca- pacity of planar reinforcements have often been stud- ied there is a major lack of study into the bearing ca- pacity of footings when supported on GEOCELL-reinforced soil. Thus according to the widespread use of GEOCELL- reinforced beds providing an analytical approach to the design of shallow foundations and to explain their stress- SETTLEMENT behavior could be very useful. Due to the three-dimensional mechanism of a GEOCELL the cell walls of GEOCELL reinforcement keep the encapsulated soil from being displaced from the applied load by confining the material through the hoop action of a cell thereby in- creasing the shear strength of the composite system This paper presents a new analytical method based on the theory of pavement layers and the theory of multi- layered soils for estimating the pressure-settlement re- sponse of circular footings resting on a reinforced sand bed with a single layer of GEOCELL The ELASTIC MODULUS of the unreinforced layers and GEOCELL reinforced soil layer (geocell and soil inside the GEOCELL pockets) as a compos- ite material was evaluated by an equivalent composite material which was developed from triaxial compression tests on unreinforced and GEOCELL-reinforced soil samples Comparisons of the present analytical results with plate load test results show favorable agreement and thus indicate the accuracy and appropriate performance of this method Also parametric studies are carried out to investigate the influence of the dimensionless soil stiff- ness modulus stiffness geotextile used in constructing the GEOCELL the height of the GEOCELL layer and diameter plate loading on the pressure SETTLEMENT variations of the footing.

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APA: Copy

SHAGHAGHI, T., & MOGHADDAS TAFRESHI, S.N.. (2015). ANALYTICAL INVESTIGATION OF PRESSURE-SETTLEMENT RESPONSE OF FOOTING SUPPORTED BY A GEOCELL REINFORCED BED. SHARIF: CIVIL ENINEERING, 31-2(3.1), 63-72. SID. https://sid.ir/paper/128120/en

Vancouver: Copy

SHAGHAGHI T., MOGHADDAS TAFRESHI S.N.. ANALYTICAL INVESTIGATION OF PRESSURE-SETTLEMENT RESPONSE OF FOOTING SUPPORTED BY A GEOCELL REINFORCED BED. SHARIF: CIVIL ENINEERING[Internet]. 2015;31-2(3.1):63-72. Available from: https://sid.ir/paper/128120/en

IEEE: Copy

T. SHAGHAGHI, and S.N. MOGHADDAS TAFRESHI, “ANALYTICAL INVESTIGATION OF PRESSURE-SETTLEMENT RESPONSE OF FOOTING SUPPORTED BY A GEOCELL REINFORCED BED,” SHARIF: CIVIL ENINEERING, vol. 31-2, no. 3.1, pp. 63–72, 2015, [Online]. Available: https://sid.ir/paper/128120/en

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