The following are the important geotechnical engineering journal; Journal of geotechnical and geoenvironmental engineering, International journal of geomechanics..these two journals from ASCE, Journal of computers and geotechnics, Journal of soils and Foundations from Japan, Geotechnique from U.K, Canadian Geotechnical Journal, International journal of analytical and numerical methods in geomechanics, Indian geotechnical journal like these many journals are available related to geotechnical engineering.
Dear Mohamed, If I repose the question as to what are the traditional journals, I would present the following ones. This does not mean that others do not exist or are necessarily inferior. If would like to get a general list, you may, as you know, search the net with the relevant key words: List of Geotechnical Engineering Journals for instance. ASCE Geotechnical Journal Geotechnique Journal of Ground Improvement Canadian Geotechnique Soils and Foundations (Japan) Geotechnical and Geological Engineering International Journal for numerical methods in geo-mechanics. All the best!
A Journal finder is the best search engine. However, you may try Geotechnique, computer & geotechnics, Acta Geotechnica, and Canadian Geotechnical Journal etc depending on the nature of your work.
As afnan Ahmad said Journal finder is the best search engine. Or You can download the full list of ISI index journal list released recently in which you have to seperate the geotechnical journal.