n IMIESA - Earth collapse : geophysics
|Article Title||Earth collapse : geophysics|
|© Publisher:||3S Media (Pty) Ltd|
|Author||Larry K. Johnson|
|Publication Date||Apr 2010|
|Pages||60 - 63|
A proper assessment of soil stability at a project site requires an accurate characterisation of the soils, groundwater, and site conditions. Because of layering, fissuring and constantly changing moisture content, soils almost never have uniform properties. Published soil survey reports and soil scientists can be helpful in identifying local soil and groundwater conditions but cannot provide a definitive basis for decisions. Properly trained contractors and engineers can use soil information to design and install protective measures, such as shoring, installing trench boxes, and properly sloping the excavations.
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