Bearing Capacity of Circular Footing Resting on Fiber-Reinforced Pond Ash Overlying Soft Clay
Publication: Journal of Hazardous, Toxic, and Radioactive Waste
Volume 24, Issue 1
Abstract
Model footing tests were conducted of a circular footing resting on a randomly distributed fiber-reinforced pond ash (RDFP) layer overlying soft clay. The effect of varying the thickness of the pond ash layer over soft clay was studied. The reinforcement effect also was investigated by adding polypropylene fibers of different lengths with varying content percentages into the pond ash layer overlying soft clay. The results indicated that there is significant improvement in the ultimate bearing capacity with an increase in fiber length, fiber percentage, and RDFP layer thickness. The results also indicated that there is significant improvement of 80% in ultimate bearing pressure when soft clay at the top is replaced by a compacted pond ash layer of thickness. The ultimate bearing pressure increased 54% with an increase in fiber length from 6 to 18 mm for a thickness of the RDFP layer at 1% fiber content. The results of the model footing tests were validated with finite-element software PLAXIS 3D. The scale effect also was studied with the help of software by considering footings with diameters of 1, 2, 3, and 4 m.
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References
Alawaji, H. 2001. “Settlement and bearing capacity of geogrid-reinforced sand over collapsible soil.” Geotext. Geomembr. 19 (2): 75–88. https://doi.org/10.1016/S0266-1144(01)00002-4.
Al-Sanad, H. A., N. F. Ismael, and R. P. Brenner. 1993. “Settlement of circular and ring plates in very dense calcareous sands.” J. Geotech. Eng. 119 (4): 622–638. https://doi.org/10.1061/(ASCE)0733-9410(1993)119:4(622).
ASTM. 2012a. Standard specification for coal fly ash and raw or calcined natural pozzolan for use in concrete. ASTM C618. West Conshohocken, PA: ASTM.
ASTM. 2012b. Standard test methods for laboratory compaction characteristics of soil using modified effort (56,000 ft-lbf/ft3(2,700 kN-m/m3)). ASTM D1557. West Conshohocken, PA: ASTM.
Bera, A. K., A. Ghosh, and A. Ghosh. 2007. “Compaction characteristics of pond ash.” J. Mater. Civ. Eng. 19 (4): 349–357. https://doi.org/10.1061/(ASCE)0899-1561(2007)19:4(349).
Boushehrian, J. H., and N. Hataf. 2003. “Experimental and numerical investigation of the bearing capacity of model circular and ring footings on reinforced sand.” J. Geotext. Geomembr. 21 (4): 241–256. https://doi.org/10.1016/S0266-1144(03)00029-3.
Consoli, N. C., M. D. T. Casagrande, P. D. M. Prietto, and A. Thome. 2003. “Plate load test on fiber-reinforced soil.” J. Geotech. Geoenviron. Eng. 129 (10): 951–955. https://doi.org/10.1061/(ASCE)1090-0241(2003)129:10(951).
Dash, S., S. Sireesh, and T. Sitharam. 2003. “Model studies on circular footing supported on geocell reinforced sand underlain by soft clay.” Geotext. Geomembr. 21 (4): 197–219. https://doi.org/10.1016/S0266-1144(03)00017-7.
Fatahi, B., B. Fatahi, T. M. Le, and H. Khabbaz. 2013. “Small-strain properties of soft clay treated with fibre and cement.” Geosynth. Int. 20 (4): 286–300. https://doi.org/10.1680/gein.13.00018.
Ghosh, A., A. Ghosh, and A. K. Bera. 2005. “Bearing capacity of square footing on pond ash reinforced with jute-geotextile.” Geotext. Geomembr. 23 (2): 144–173. https://doi.org/10.1016/j.geotexmem.2004.07.002.
Gupta, D., and A. Kumar. 2016. “Strength characterization of cement stabilized and fiber reinforced clay-pond ash mixes.” Int. J. Geosynthetics Ground Eng. 2 (4): 32. https://doi.org/10.1007/s40891-016-0069-z.
Gupta, D., and A. Kumar. 2017. “Stabilized soil incorporating combinations of rice husk ash, pond ash and cement.” Geomech. Eng. 12 (1): 85–109. https://doi.org/10.12989/gae.2017.12.1.085.
Hataf, N., and M. M. Rahimi. 2006. “Experimental investigation of bearing capacity of sand reinforced with randomly distributed tire shreds.” Constr. Build. Mater. 20 (10): 910–916. https://doi.org/10.1016/j.conbuildmat.2005.06.019.
Ismael, N. F. 1996. “Loading tests on circular and ring plates in very dense cemented sands.” J. Geotech. Eng. 122 (4): 281–287. https://doi.org/10.1061/(ASCE)0733-9410(1996)122:4(281).
Jakka, R. S., M. Datta, and G. V. Ramana. 2010a. “Liquefaction behavior of loose and compacted pond ash.” Soil Dyn. Earthquake Eng. 30 (7): 580–590. https://doi.org/10.1016/j.soildyn.2010.01.015.
Jakka, R. S., G. V. Ramana, and M. Datta. 2010b. “Shear behaviour of loose and compacted pond ash.” Geotech. Geol. Eng. 28 (6): 763–778. https://doi.org/10.1007/s10706-010-9337-1.
Kaur, A., and A. Kumar. 2014. “Bearing capacity of eccentrically–obliquely loaded footings resting on fiber-reinforced sand.” Geotech. Geol. Eng. 32 (1): 151–166. https://doi.org/10.1007/s10706-013-9699-2.
Kaur, A., and A. Kumar. 2016. “Behaviour of eccentrically inclined loaded footing resting on fiber-reinforced soil.” Geomech. Eng. 10 (2): 155–174. https://doi.org/10.12989/gae.2016.10.2.155.
Khing, K. H., B. M. Das, V. K. Puri, S. C. Yen, and E. E. Cook. 1994. “Foundation on strong sand underlain by weak clay with geogrid at the interface.” Geotext. Geomembr. 13 (3): 199–206. https://doi.org/10.1016/0266-1144(94)90035-3.
Kim, B., M. Prezzi, and R. Salgado. 2005. “Geotechnical properties of fly and bottom ash mixtures for use in highway embankments.” J. Geotech. Geoenviron. Eng. 131 (7): 914–924. https://doi.org/10.1061/(ASCE)1090-0241(2005)131:7(914).
Kumar, A., and D. Gupta. 2016. “Behaviour of cement-stabilized fiber-reinforced pond ash, rice husk ash-soil mixtures.” Geotext. Geomembr. 44 (3): 466–474. https://doi.org/10.1016/j.geotexmem.2015.07.010.
Kumar, A., M. L. Ohri, and R. K. Bansal. 2007a. “Bearing capacity tests of strip footings on reinforced layered soil.” J. Geotech. Geol. Eng. 25 (2): 139–150. https://doi.org/10.1007/s10706-006-0011-6.
Kumar, A., S. Raghunandan, and D. N. Singh. 2007c. “Bearing capacity tests of square footings on reinforced layered soil.” J. Geotech. Eng. 38 (1): 24–32.
Kumar, A., B. S. Walia, and A. Bajaj. 2007b. “Influence of fly ash, lime and polyester fibers on compaction and strength properties of expansive soil.” J. Mater. Civ. Eng. 19 (3): 242–248. https://doi.org/10.1061/(ASCE)0899-1561(2007)19:3(242).
Kumar, A., B. S. Walia, and S. Saran. 2007d. “Pressure-settlement characteristics of rectangular footings resting on reinforced layered soil.” Int. J. Geotech. Eng. 1 (1): 81–90. https://doi.org/10.3328/ijge.2007.01.01.81-90.
Kumar, A., B. S. Walia, and S. Saran. 2007e. “Pressure settlement characteristics of square footings on reinforced layered soil.” J. Geotech. Eng. 38 (2): 57–64.
Mahallawy, N. A. E., and A. Rashed. 2012. “Experimental study for the behaviour of footings on reinforced sand beds overlying soft clay zone.” J. Am. Sci. 8 (1): 427–434.
Maher, M. H., and Y. C. Ho. 1994. “Mechanical properties of kaolinite/fiber soil composite.” J. Geotech. Eng. 120 (8): 1381–1393. https://doi.org/10.1061/(ASCE)0733-9410(1994)120:8(1381).
Meyerhof, G. G. 1974. “Ultimate bearing capacity of footings on sand layer overlying clay.” Can. Geotech. J. 11 (2): 223–229. https://doi.org/10.1139/t74-018.
Muntohar, A. S., and G. Hantoro. 2000. “Influence of the rice husk ash and lime on engineering properties of clayey subgrade.” Electron. J. Geotech. Eng. 5 (Jan): 1–9.
Naderi, E., and N. Hataf. 2014. “Model testing and numerical investigation of interference effect of closely spaced ring and circular footings on reinforced sand.” Geotext. Geomembr. 42 (3): 191–200. https://doi.org/10.1016/j.geotexmem.2013.12.010.
Priyadarshee, A., D. Gupta, V. Kumar, and V. Sharma. 2015. “Comparative study on performance of tire crumbles with fly ash and kaolin clay.” Int. J. Geosynthetics Ground Eng. 1 (4): 38. https://doi.org/10.1007/s40891-015-0033-3.
Priyadarshee, A., A. Kumar, D. Gupta, and P. Pushkarana. 2018. “Compaction and strength behavior of tire crumbles-fly ash mixed with clay.” J. Mater. Civ. Eng. 30 (4): 04018033. https://doi.org/10.1061/(ASCE)MT.1943-5533.0002171.
Sharma, V., and A. Kumar. 2017a. “Influence of relative density of soil on performance of fiber-reinforced soil foundations.” Geotext. Geomembr. 45 (5): 499–507. https://doi.org/10.1016/j.geotexmem.2017.06.004.
Sharma, V., and A. Kumar. 2017b. “Strength and bearing capacity of ring footings resting on fibre-reinforced sand.” Int. J. Geosynthetics Ground Eng. 3 (1): 9. https://doi.org/10.1007/s40891-017-0086-6.
Sharma, V., and A. Kumar. 2019. “Numerical study of ring and circular foundations resting on fibre-reinforced soil.” Int. J. Geotech. Eng. 1–13. https://doi.org/10.1080/19386362.2019.1603680.
Singh, D., and A. Kumar. 2017. “Performance evaluation and geo-characterization of municipal solid waste incineration ash material amended with cement and fibre.” Int. J. Geosynthetics Ground Eng. 3 (2): 16. https://doi.org/10.1007/s40891-017-4370094-6.
Tang, C., B. Shi, W. Gao, F. Chen, and Y. Cai. 2007. “Strength and mechanical behavior of short polypropylene fiber reinforced and cement stabilized clayey soil.” Geotext. Geomembr. 25 (3): 194–202. https://doi.org/10.1016/j.geotexmem.2006.11.002.
Wasti, Y., and M. D. Butun. 1996. “Behaviour of model footings on sand reinforced with discrete inclusions.” Geotext. Geomembr. 14 (10): 575–584. https://doi.org/10.1016/S0266-1144(96)00044-1.
Yetimoglu, T., M. Inanir, and O. Inanir. 2005. “A study on bearing capacity of randomly distributed fiber-reinforced sand fills overlying soft clay.” Geotext. Geomembr. 23 (2): 174–183. https://doi.org/10.1016/j.geotexmem.2004.09.004.
Yetimoglu, T., J. T. H. Wu, and A. Saglamer. 1994. “Bearing capacity of rectangular footings on geogrid-reinforced sand.” J. Geotech. Eng. 120 (12): 2083–2099. https://doi.org/10.1061/(ASCE)0733-9410(1994)120:12(2083).
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Journal of Hazardous, Toxic, and Radioactive Waste
Volume 24 • Issue 1 • January 2020
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©2019 American Society of Civil Engineers.
History
Received: Jan 22, 2019
Accepted: Aug 6, 2019
Published online: Oct 9, 2019
Published in print: Jan 1, 2020
Discussion open until: Mar 9, 2020
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