I would like some help in identifying some of the real "brick walls" that have been found in geotechnical engineering (i.e. those topics or areas that have not been solved yet). Can you give me some ideas....I'm looking for about 10.
1. The geostatic state of stress in the ground (all three principle stresses). Currently, lateral stress is assumed same in all directions. As prior ISSMGE President Mike Jamiolkowski has said "The determination of Ko is still one of the great black holes in geotechnical engineering".
2. Evaluation of the effective stress parameters (c' and phi') in fine-grained soils directly from in-situ test methods.
3. As much as we'd like not to admit it, the evaluation of pile side friction (skin resistance) is still fairly poorly understood. See, for example, Mike O'Neill's Terzaghi Lecture in Jan 2001 issue of Journal of Geotechnical & Geoenv. Engineering.
have recently developed advanced 3D software specific for earth work estimation and interactive measurement in 3D space. We are looking for interested parties. Please contact me if you are interested. I can provide you with further information.
Regards Dr. M. Elmas
MS MacroSystem Nederland Tromplaan 1 Nl-3951 CL Maarn tel: 0031343441323