Abstract
Many pioneering foundation techniques have been suggested for plummeting the unfavorable heave of foundations placed in expansive clays. This paper presents another innovative technique of the determination of load creating a specified amount of settlement and load which maintains no uplift/no settlement. In the present study a slip layer of varying thickness is introduced along the pile periphery and depth of swelling zone, intensity of anisotropic swelling pressure are varied and stress based analysis is conducted and load creating a known amount of settlement and load which maintains no uplift/no settlement are found out. It is accomplished that (a) Increase in expansive zone increases, load required for known amounts of settlement increases for a given slip element thickness, bulb diameter and swelling pressure (b) The soil heave and pile uplift are immensely affected by the intensity of anisotropic swelling pressure intensity. (c) Provision of slip element below the pile tip reduces the pile upheaval.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Basma, A.A., Al-Akhras, N.: Anisotropy in swelling characteristics of clays. Indian Geotech. J. 25(4), 429–444 (1991)
Challa, P.K., Poulos, H.G.: Behavior of single pile in expansive clay. Geotech. Eng. 22(2), 189–216 (1991)
Prakash, C., Wardle, I.F., Chandrra, R., Balodhi, G.R., Price, G.: Performance of single under-reamed pile foundation supporting a single story structure in expansive soil. Indian Geotech. J. 18(4), 340–355 (1988)
Chaudhari, G.B.: An enquiry report submitted to Chief Engineer, Public Works Department, Akola, Maharastra, India for the site of tehsil building at Daryapur. vol. 1, No. 2, p. 23 (1991)
Chummar, A.V.: For which soil conditions are under-reamed pile foundations superior to other foundation systems?. In: Indian Geotechnical Conference, pp. 121–128 (1988)
Coduto, D.P.:. Geotechnical Engineering Principals and Practice. Prentice Hall, pp. 655–664, 666–669, 671–672, 684–695 (1999)
Emilios, M., Christos, C., Poulos, T.A., Michael, K.G.: Numerical assessment of axial pile group response based on load test. Comput. Geotech. 30(6), 505–515 (2003)
Fan, Z.-H., Wang, Y.-H., Xiao, H.-B., Zhang, C.-S.: Analytical method of load-transfer of single pile under expansive soil swelling. J. Central South Univ. Technol. 14(4), 575–579 (2007)
Gens, A., Alonso, E.E.: A framework for the behavior of unsaturated expansive clays. Can. Geotech. J. 26(6), 1013–1032 (1992). https://doi.org/10.1139/t92-120
Ranjan, G., Rao, A.S.R.: Basic and applied soil mechanics, 2nd edn, p. 702. New Age International Publishers, New Delhi (2000). Ch. 20
Lee, I.-M., Lee, J.-H.: Prediction of pile bearing capacity using artificial neural networks. Comput. Geotech. 18(3), 189–200 (1996)
Lee, J.-S., Park, Y.-H.: Equivalent pile load–head settlement curve using a bi-directional pile load test. Comput. Geotech. 35(2), 124–133 (2008)
Junejan, P.L., Gulhati, S.K., Singh, A., Venkatappa Rao, G.: An approach for determination of thermal conductivity of soils. Indian Geotech. J. 14(4), 250 (1984)
Katti, R.K.: Search for solutions to problems in black cotton soils. In: Indian Geotechnical Journal, 20th Annual General Session, 1st I.G.S Annual Lecture, vol. 9, No. 1, pp. 76–78 (1979)
Laloui, L., Nuth, M., Vulliet, L.: Experimental and numerical investigations of the behavior of a heat exchanger pile. Int. J. Numer. Anal. Methods Geomech. 30(8), 763–781 (2006). https://doi.org/10.1002/nag.499
Nayak, N.V.: Foundation Design Manual, 1st edn, p. 324. Dhanpat Rai Sons, Delhi (1985)
Poulos, H.G., Davis, E.H.: Pile Foundation Analysis & Design, Ch. 12, pp. 297, 299–301. John Wiley & Sons, New York (1980)
Phanikumar, B., Sharma, R., Srirama, R.A., Madhav, M.: Granular pile anchor foundation (gpaf) system for improving the engineering behavior of expansive clay beds. Geotech. Test. J. 27(3), 279–287 (2004). https://doi.org/10.1520/GTJ11387. ISSN 0149-6115
Rama Rao, R., Smart, P.: Errors in swell pressure measurement. Proceedings of the First National Symposium on Expansive Soils, Session 1, pp. 4-1, 4-5 (1977)
Satyanarayana, B.: Swelling behavior and identification of expansive soils. In: National Seminar on Partially Saturated Soils and Expansive Soils, Kakinada, Andhra Pradesh, India, pp. 41, 43, 47, 48 (1996)
Sinha, U.N.: Quasi-over consolidation effect of expansive clays. In: National Seminar on Partially Saturated Soils and Expansive Soils, Kakinada, Andhra Pradesh, India, p. 49 (1996)
Sorochan, E.A., Losevan, A.N.: Pile behavior in swelling soils under horizontal load action. In: Plenum Publishing Corporation, New york, (Translated from Osnovania, Fundamenty I Mekhanika Gruntov, No. 3, PP. 10–12), Soil Mechanics & Foundation Engineering, pp. 89–93 (1985)
Sudhindra, C., Sharma, V.M., Dhavan, A.K., Gangadhar, R.B., Singh, P.P.: An instrument for the measurement of thermal conductivity of soil. Indian Geotech. J. 8(2), pp. 186, 192, 193 (1988)
Tomlinson, M.J.: Foundation Design and Construction, 5th edn., pp. 423, 426. Longman, ELBS. Singapore (1986)
Viswanadham, B.V.S., Phanikumar, B.R., Mukherjee, R.V.: Swelling behavior of a geofiber-reinforced expansive soil. Geotext. Geomembr. 27(1), 73–76 (2009). https://doi.org/10.1016/j.geotexmem.2008.06.002
Mohamedzein, Y.E.-A., Mohamed, M.G., El Sharief, A.M.: Finite element analysis of short piles in expansive soils. Comput. Geotech. 24(3), 231–243 (1999). https://doi.org/10.1016/S0266-352X(99)00008-7
Acknowledgements
Author want to sincerely acknowledge:
(1) Shri. Chaudary G.B., (M.E.Geo-Technical), Rtd Assistant Professor, VJTI Mumbai for sharing information on swelling pressure profile at Akola, Maharashtra.
(2) Shri. Haroon Ali Khan,(M.S) Assistant Professor, V.R Siddhartha Engineering College, Kanuru, Vijayawada, A.P, India for performing the laboratory test on soils and rendering all helping in preparing the manuscript.
(3) Shri. Jaya Krishna Sairam, (M.Tech. Structures) alumni, Department of Civil Engineering, V.R Siddhartha Engineering College, Kanuru, Vijayawada, A.P, India for performing the laboratory test on concrete and preparing the axi-symetric model.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2019 Springer Nature Switzerland AG
About this paper
Cite this paper
Prabhakara Rao, V.V.N. (2019). Generalized Analysis of Under-Reamed Pile Subjected to Anisotropic Swelling Pressure. In: McCartney, J., Hoyos, L. (eds) Recent Advancements on Expansive Soils. GeoMEast 2018. Sustainable Civil Infrastructures. Springer, Cham. https://doi.org/10.1007/978-3-030-01914-3_14
Download citation
DOI: https://doi.org/10.1007/978-3-030-01914-3_14
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-01913-6
Online ISBN: 978-3-030-01914-3
eBook Packages: Earth and Environmental ScienceEarth and Environmental Science (R0)