Geosciences
Characterization of karst The name “karst” is used for sedimentary rock mass, which is apparently influenced by leaching processes of its water-soluble components. Mainly limestone, dolomite and gypsum are the … Read More
Some of the Earth Slope stabilization techniques that are currently available in North America are illustrated here. We highlight simple methods that can be used safely in the absence of … Read More
Information from drillhole comes from the following main sources: rock, core, or chips; down-the-hole geophysical equipment; instruments inside the drillhole; and performance of the drilling machinery. In this section, we … Read More
The term slope failure covers a wide range of ground movements, such as rockfalls, deep failure of slopes, and shallow debris flows. Causes of Slope Failure: Gravity Although gravity acting … Read More
According to USCS Classification for the City of An-Najaf, Iraq The unified soil classification system (USCS) first proposed by Casagrande and subsequently developed by the Army Corps of Engineers (Geotechnical). … Read More
By Philip S. Prince, sand model landslide If you Google the word “landslide”…the first search result you get is the Fleetwood Mac song. I suppose this says something about the … Read More
Geomodelling (Geologic modelling) Geologic modelling, geological modelling or geomodelling is the applied science of creating computerized representations of portions of the Earth’s crust based on geophysical and geological observations made … Read More
In the year of 2012 the NARO announced an in-situ ground survey machine, the Nippon Screw Weight System (NSWS), designed to overcome problems with the standard penetration test. The NSWS … Read More
The Atterberg limits are a basic measure of the critical water contents of a fine-grained soil: its shrinkage limit, plastic limit, and liquid limit. Depending on its water content, a … Read More
Hammer tunnelling has proven to be economic mainly in the Mediterranean countries and Asia. Hammer tunnelling is successful compared to drilling and blasting when the fractured rock structure makes controlled … Read More
