Laboratory tests were performed on 54 large size specimens of jointed rock mass under uniaxial loading conditions. Based on this experimental study, a methodology has been suggested to estimate strength and tangent modulus of rock masses through a weakness coefficient. The methodology involves mapping of joints in the field and laboratory testing of intact rock specimens to arrive at rock mass ...

A map showing the distribution of rock units and structures across a region representation, usually on a plane surface is termed a geological map. A map showing the occurrence of structural features across a region, the distribution of rock units, and their type and age relationship is termed a geological map. Geological field mapping is the process of selecting an area of interest and identify...

The data management of a large geological survey is not an easy task. To efficiently store and manage the huge datasets, a database of geological information on the basis ofMicrosoftAccess has been created. By using the database of geological information, we can make easily and scientifically store andmanage the large geological information.The geological maps—borehole diagrams, the rose diagra...

The 3D data model is an important issue to be solved in 3DGIS. Based on the study of the basic characteristics of geological objects and the especial requirement for computational 3D geological volume modeling, the authors give out an object-oriented 3D topologic data model for geological volume modeling. In this data model, the geological volumes are divided into four classes: the composite vo...

Preliminary geological investigations have been conducted to find suitable construction site and to assess engineering geological characteristics before detailed in situ investigation for large scale construction activities such as highway, railroad, subway or underground cavern constructions. The geological stability is a very important and critical factor for safe maintenance of structures an...

National geological survey works have characteristics of data enormousness, computing denseness, resource distribution, and applications heterogeneousness. As innovative information infrastructure and service architecture, grid can meet geological survey application requirements by implementing sharing and cooperation of distributed and heterogeneous resources. Based on grid technologies and OG...

s and Program, Geological Society of America, Denver,Colo., 28(7,) A-261.Turcios, L. M., and Gray, J. R. (2001). „U.S. Geological Surveysediment and ancillary data on the World Wide Web.‰ Proceedings of the 7th Federal Interagency Sedimentation Conference, Subcommittee on Sedimentation, Reno, Nev.,Poster 31-36.Turcios, L. M., Gray, J. R., and Ledford, A. L. (2000). „...