Both the previous 2006 DMT Conference and the 2015 DMT Conference include a section containing the papers on DMT testing in Difficult Geomaterials (e.g. Residual, Tropical, Unsaturated, Calcareous, Organic, Crushable, Expansive, etc.). The interested reader is referred to the papers in these two DMT Conferences.

In general the expectation is that in these soils the correlations involving pore water pressure are inapplicable, in part or totally. The correlations for estimating moduli/ settlements are instead expected to possibly preserve some validity, since DMT is a load test, determining a pressure-settlement relation.

 

A (non exhaustive) list of papers on DMT in difficult soils is given below.

D.A. Brown, J. Vinson, 1998. Comparison of strength and stiffness parameters for a Piedmont residual soil. Proceedings of the First International Conference on Site Characterization – ISC’98, Atlanta, Georgia, USA, Vol. 2, pp 1229-1234.

Chang, M.F. 1988. In Situ Testing of Residual Soils in Singapore. Proc. 2nd Int. Conf. on Geomechanics in Tropical Soils, Singapore, Vol. 2: 97-108. Dec.

Cruz N. (2010). Modelling Geomechanics Of Residual Soils With DMT Tests. Modelling Geomechanics of Residual Soils with DMT Tests, Faculdade de Engenharia, Universidade de Porto, FEUP.

Decourt L. (1994) “The Behavior of a Building with Shallow Foundations on a stiff Lateritic Clay”, Proc. Settlement ’94, ASCE Confer. at Texas A&M Univ., Geot. Spec. Publ. No. 40, June Vol. 2, 1505-1515.

De Vincenzi and Canicio (2001). Geotechnical Characterization by In Situ Tests of a Loess-Like Deposit in its Natural Site and After Saturation. Proc. In Situ Intnl. Conf. on In Situ Measurements of Soil Properties, Bali, Indonesia.

Failmezger, R.A., Rom, D. & Ziegler, S.B. 1999. SPT? A better approach to site characterization of residual soils using other in-situ tests. Behavioral characteristics of residual soils, ASCE Geotech. Spec. Publ. No. 92, 158-175.

Giacheti H.L. et al. (2006) “Flat Dilatometer Testing in Brazilian Tropical Soils”, Proc. 2nd Int. Conf. on Flat Dilatometer, Washington D.C.: 110

G.K. Martin, P.W. Mayne, 1998. Seismic flat dilatometer tests in Piedmont residual Soils. Proceedings of the First International Conference on Site Characterization – ISC’98, Atlanta, Georgia, USA, Vol. 2, pp 837-843.

Mayne, P.W. 2005. Unexpected but foreseeable mat settlements of Piedmont residuum. Int. Jnl of Geoengineering Case Histories, http://casehistories.geoengineer.org, Vol. 1, Issue 1, 5-17.

Viana da Fonseca, M.M. Fernandes, A.S. Cardoso, 1988. Characterization of a saprolitic soil from Porto granite by in situ testing. Proceedings of the First International Conference on Site Characterization – ISC’98, Atlanta, Georgia, USA, Vol. 2, pp 1381-1387.

Wang Chainchye E. and Borden Roy H.”Deformation Characteristics of Piedmont Residual Soils” Jnl ASCE GE, Vol. 122, No. 10, October 1996, pp. 822-830

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