How Is Isostasy Related to Changes in Elevation?
How Is Isostasy Related to Changes in Elevation? Visualize what would happen if another small block of wood were placed a top one of the blocks in Figure 1. The … Read More
Category: Geology engineering
Underground structures in karst
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
Earth Slope Stabilization/Mitigation
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
Logging of drillhole samples and Drilling contracts
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
Slope failure
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
Horizontal and Vertical Geotechnical Variations of Soils using GIS
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
A sand model landslide compared to the 2018 Llusco event (with coordinates of the Llusco slide!)
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
Geologic modelling
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
Nippon Screw Weight System
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
Atterberg limits
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