Dynamic Properties of Soils from In-Situ Tests

by Shamsher Prakash, (F.ASCE), Prof.; Civ. Engrg. Dept., Univ. of Missouri-Rolla, Rolla, Mo. 65401; formerly, Prof. of Civ. Engrg. and Head of Geotechnical Engrg. Div., Univ. of Roorkee, Roorkee, UP, India,
Vijay Kumar Puri, Grad. Student; Civ. Engrg. Dept., Univ. of Missouri-Rolla, Rolla, Mo. 65401; formerly, Lect. Soil Dynamics, Dept. of Earthquake Engrg., Univ. of Roorkee, Roorkee, UP, India,

Serial Information: Journal of the Geotechnical Engineering Division, 1981, Vol. 107, Issue 7, Pg. 943-963

Document Type: Journal Paper

Discussion: Nagendra M. V. (See full record)
Closure: (See full record)


Various field test (namely vibration tests on blocks or plates, steady-state vibration or Rayleigh wave tests, wave propagation tests, and cyclic load tests) were conducted at a number of sites in India to determine the dynamic shear modulus, G. Data obtained at different sites are described. The values of G obtained from the different tests at a given site vary widely. The rational approach for selecting the value of G from field tests for use in the analysis and design of soil-structure interaction problems under dynamic loads must account for the factors affecting G. The suggested approach, which provides a possible answer, is suitable in cohesionless soils below the water table where it is rather difficult, if not impossible, to obtain undisturbed samples.

Subject Headings: Soil dynamics | Soil properties | Field tests | Dynamic properties | Load tests | Dynamic tests | Dynamic loads | Soil tests | Cyclic tests | Rayleigh waves | India | Asia

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