Previous Experience/Positions held

Name of Post	Years	Months	Total	Period of work	Institution/Organization
i. In the Department
Assistant Professor (Civil)	14	0	14 years	01 June 2000 onwards	College of Engineering Trivandrum, 695016
Associate Professor (Civil)	02	0	2 years	01 June 2014 to May 2016	College of Engineering Trivandrum, 695016
Professor (Civil)	02	06	2.5 years	06 May 2016 onwards	College of Engineering Trivandrum, 695016
ii. Others (specify)
Assistant Engineer (Civil)	2	3	2 years & 04 months	March 1998 to May 2000	Kerala State Electricity Board, Trivandrum 695004
Post Graduate Trainee	-	Nine	09 months	Mar 1994 to Aug 1991	VSSC, ISRO, Dept of Space, Govt. of India, Trivandrum-022
Site Engineer	-	Seven	07 months	Feb 1990 to Aug 1990	Ceemex, Engineers & Contractors, Trivandrum-014

Areas of Interest:

Main interests: Teaching, Training, Research & Consultancy projects

Courses Handled

All Civil Engineering Subjects - Engineering Mechanics, Strength of Materials, Geotechnical Engg, Estimation & Valuation, Critical State Soil Mechanics, Ground improvement methods, Engineering Building Drawing, Survey Lab, Strength of Materials Lab, Geotechnical Engg Lab, Foundation Engg Lab, etc.

Publications:

International Journals:

Sivakumar, V., Doran, I.G., Graham, J. and Johnson, A.S. (2001) 'The effect of anisotropic elasticity on the yielding characteristics of overconsolidated natural clay', Canadian Geotechnical Jl, 38, No. 1, p125-137.

Doran, I.G., Sivakumar, V., Graham, J. and Johnson, A.S. (2000) 'Estimation of in-situ stresses using anisotropic elasticity and suction measurements', Geotechnique Jl., 50, No. 2, 189-196.

Pranesh, M.R. & Johnson, A.S. (1995) 'Submarine pipeline routing software', Computers and Structures Jl., Vol. 57, No. 2, p.233-252.

Johnson, A.S. & Anusha R. (2015) 'Chemical and Geotechnical Properties of Termite Mound and Adjacent Soils in South India', Intl Jl in Geotechnical Engineering, Vol. 17, p.233-252.

International Conferences:

Anusha, R., Johnson, A.S. and Sreedevi C. (2010). Chemical and Geotechnical Properties of Termite Mounds and Surrounding Soils, International Conference on Technological Trends (ICTT2010), Trivandrum 2010, pp 80-86.

Anusha, R., Johnson, A.S. and Sreedevi C. (2010). Chemical and Geotechnical Properties of Termite Mounds and Surrounding Soils, International Conference on Technological Trends (ICTT2010), Trivandrum 2010, pp 80-86.

Reshma R, Johnson A.S , Unnikrishnan, N, & Jayasree P.K (2008) 'Model and Prototype Testing of Well Rings as Foundation for Residential Building, 12 th Intl Conf. of Intl. Association for Computer Methods and Advances in Geomechanics (IACMAG) , Goa, India, pp1405-1412.

Johnson, A.S. and Unnikrishnan. N (2001) 'Pore water pressure equation for sampling using

anisotropic elastic theory', Intl. Conf. on Civil Engineering, IISc Bangalore, India, p846-854.

Unnikrishnan. N and Johnson, A.S . (2001) 'Numerical modeling of soil structures under cyclic loading', Intl. Conf. on Civil Engineering, Bangalore, India, p480-487.

Pranesh, M.R. & Johnson, A.S. (1999) 'Submarine pipeline buckling on the seabed', Intl. Conf. on Offshore and Nearshore Geotechnical Engg, Mumbai, India, p.87-91.

Doran, I.G., Sivakumar, V., Johnson, A.S . and Cummings, S. (1998) 'Measurement and prediction of effective stress in the sample', First Intl. Conf. On Site Characterization, Atlanta, p819-824.

Cumming, S., Doran, I.G., Sivakumar, V., Hughes, D. and Johnson, A.S. (1998) 'Characterization of the subsoil conditions at Swann's Bridge, Northern Ireland', First Intl. Conf. On Site Characterization, Atlanta, p353-358.

Pranesh, M.R. & Johnson, A.S. (1994) 'Submarine pipeline sea-floor-obstruction interaction', Intl. Conf. on Hydraulic Research, Singapore, p84-91.

Unnikrishnan N ., and Johnson A. S. Sustainable transport development - a vision. International Seminar on Sustainable Development in Road Transport - 8 - 10 th November 2001, New Delhi

Unnikrishnan, N. and Johnson, A.S . (2008) Geotechnical Investigations: client consultant relations. 3 rd International Conference on Site Characterisation, Taipei, 1-4 April 2008, pp 559-562.

Unnikrishnan, N . and Johnson, A.S. (2009). Industry - Institute Interaction: Compulsions, Challenges and Strategies. Int. Conf. Advances in Optoelectronics, Information and Communication Technologies. Trivandrum, India , 26-27 February, pp 635-639.

Shemeena, K.P., Johnson, A.S. & Sreelekshmi U.M. (2015). Densification of sand using rubberized group concrete poles. Abstract submitted to International Conference in Geotechnical Engineering, Columbo, July 2015.

National Conferences:

Johnson, A.S ., Unnikrishnan N. and Vinod S. (2002) 'The modified one dimensional consolidation theory', National Seminar -IITART, May, Trivandrum, India.

Anil, D., Johnson, A.S ., Unnikrishnan, N. & Ramanatha Ayyar, T.S. (2004) 'Standardization of coir fibre as geotextiles', Indian Geotechnical Conference, IIT Madras, Chennai, India.

Pranesh, M.R. & Johnson, A.S. (1993) 'Stability analysis of submarine pipeline'. Indian Geotechnical Conf., IGC-93, Calcutta, India, pp341-347.

Pranesh, M.R. & Johnson, A.S. (1993) 'Stresses on pipeline passing over elevated obstruction', All India Seminar on Coastal Environment, SMCE-93, Vishakapatanam, India, pp1-6

Anitha, K.R., Ashalatha, R. & Johnson, A.S . (2009) 'Effects of RBI Grade 81 on lateritic Sub grade soil', National Conference on recent innovation in Technology, RIT, Kottayam, March 2009.

Vinod P.B., Unnikrishnan N., Johnson A.S ., and Jayachandran, V . Effecacy of bentonite drilling mud under polluting environment. Indian Geotechnical Conference, Indore, 2001, pp 472- 475

Vinod P.B., Unnikrishnan N., Johnson A.S., and Jayachandran, V. (2001) Impact of pollutants on the behaviour of drilling mud. 17 th national Convention of Environmental Engineers, Institution of Engineers, 23 - 25 November 2001, Trivandrum, 96 - 102.

Mahesh Shankar, C. P., Unnikrishnan, N. and Johnson, A.S. (2008) Investigating Delayed Slope Failures in Lateritic Cuts, Indian Geotechnical Conference, Bangalore, December 2008, pp 166-170.

Unnikrishnan, N. & Johnson, A.S. Build Firm Foundations Suitable for the Soil Type. Popular Science article in the daily The Hindu on 17 th January 2009.

Unnikrishnan, N. & Johnson, A.S. (2009). Efficacy of densification techniques for bearing capacity improvement. Indian Geotechnical Conference, Guntur, 2010, pp 451-454.

Unnikrishnan, N. Johnson, A. S. & Susha Rajan (2010). Response of Strip Footings Supported on Granular Trench, Proceedings of Indian Geotechnical Conference, December 16-18, 2010, IIT Mombay. pp 525-528 .

Gigi V.V. & Johnson, A.S. (2010). Ground improvement of Loose Sands using Concrete Poles. 12th National Conference on Technological Trends (NCTT) , Trivandrum, pp 106-113.

Ashalatha, R. & Johnson, A.S . (2011) 'X-Ray Diffraction Studies on soils with RBI Grade 81', One day Seminar on New Materials in road construction for stabilized pavements, 01 March 2011, IIT Madras, Chennai, India.

Unnikrishnan, N. Johnson, A. S. & Susha Rajan (2011). Bearing capacity of strip footings on encapsulated granular trenches Proceedings of Indian Geotechnical Conference, December 15-17, 2011, Kochi. pp 191-194.

Sudheer, K.V., Johnson, A.S. & Unnikrishnan, N. (2011). Behaviour of compaction sand pile and stone column in fine sand with clay. Proceedings of Indian Geotechnical Conference, December 15-17, 2011, Kochi. pp 409-412.

Sudheer, K.V., Johnson, A.S. & Unnikrishnan, N. (2012). Experimental and FEM analysis of single and group stone columns in uniform graded sandy soil with clay, National Conference on Technological Trends (NCTT), Trivandrum, pp 1-8.

Sudheer, K.V., Johnson, A.S. & Unnikrishnan, N. (2012). Studies on the compaction sand piles and stone columns in uniformly graded sandy soils with clay. Proceedings of Indian Geotechnical Conference, December 15-17, 2012, New Delhi, p no. B274.

Shemeena K.P. & Johnson, A.S. (2014). Ground improvement of Loose Sands using square shaped rubberized concrete poles. 15th National Conference on Technological Trends (NCTT) , Trivandrum, No. 126, pp 67-72.

Sreelekshmi, U.M. & Johnson, A.S. (2014). Bearing Capacity improvement of Sand using rubberized concrete poles of tapered square section. 15th National Conference on Technological Trends (NCTT) , Trivandrum, No. 151, pp 414-418.

Shemeena, K.P., Johnson, A.S. & Sreelekshmi U.M. (2014). Densification of loose sand using rubberized concrete poles. Paper Accepted for Indian Geotechnical Conference, December 2014.

Gouri P & Johnson, A.S. (2015). Densification of sand using burnt brick column. 15th National Conference on Technological Trends (NCTT), Trivandrum, No. 1115

Siyoos S. & Johnson, A.S. (2015). Stabilization of sand using tapered stone column, 16th National Conference on Technological Trends (NCTT), Trivandrum, No. 1107

Gouri P, Siyoos S.. & Johnson, A.S. (2014). Densification of sand using burnt brick column. 50th Indian Geotechnical Conference at Pune, December 2015, Paper No. 266

Siyoos S., Gouri P. & Johnson, A.S. (2015). Stabilization of sand using tapered stone column, 50th Indian Geotechnical Conference at Pune, December 2015, Paper No. 275

Sumisha A.P. & Johnson, A.S. (2018) Study on cyclic pile load test of pile resting on rock or socketed in rock, Indian Geotechnical Conference, Banglaore, December 2018, paper No. TH-02-69

Jaya V, Johnson, A.S. & Athira S. (2018) Evaluation of stiffness of stablized dredge materials using bender elements, Indian Geotechnical Conference, Banglaore, December 2018, paper No. TH-08-45.

Thushara M. & Johnson, A.S. (2018) Experimental Study on vertical and inclined reinforecement using PVC rods in sand, Indian Geotechnical Conference, Banglaore, December 2018, paper No. TH-08-36

Other Responsibilities held:

1. Professor & Head, Part Time Degree Courses from 06 May 2016 onwards (600 students are studying for BTech & MTech degree programmes).
2. Geotechnical Lab-in-charge: from 2014 onwards.
3. Geotechnical Consultant for more than 600 buildings includes 200 High rise buildings (Apartment projects & Office buildings), Hydro-electric projects, Road projects, Transmission tower projects (more than 150 locations), Water supply projects, Sewage treatment plant projects, industrial buildings to ISRO, Department of Space, various Government Engineering College projects, various Hospital projects, Bridge construction projects, KIIFB Projects etc.
4. BTech students (2011-2015 batch) Senior Staff Advisor.
5. Assistant Professor-in-charge of Central Computer Facility (2001-2009), CET, Tvpm.
6. Conducted several Job Oriented Certificate Courses (Geotechnical Laboratory training course) were Organized of about 30 days each.
7. Faculty-in-Charge for the Approval Accreditation Process of the Institution (College of Engineering Trivandrum) in the year of 2009-2010.
8. Involved in all General Elections as a Presiding Officer from 1998 onwards.
9. Involved in Population Census of the year 2010 & 2011, as Master Trainer.
10. Chairman for the University answer paper valuation in 2015, 2016 & 2017.

Other Academic Activities: