Essay regarding dam investigation importance

The primary aim of geological site investigations pertaining to a dam project is provide the data that atteinte designers need in order to design and style a safe atteinte structure and to be able to estimate with reasonable accuracy how much the dam is going to expense. The aim of the dam designers is to build the atteinte for the lowest cost consistent with currently recognized standards of safety. The engineering geologist must be able to answer the subsequent questions; what is the interesting depth of overburden that must be eliminated to reach an acceptable foundation pertaining to the dam wall; exactly what the rock and roll types which will make up the base and to what extent draught beer affected by area weathering; exactly what are the engineering properties with the foundation rock types (important properties are strength, deformability and durability); what is the geological structure of the basis (ie jointing, faulting and folding with the rock strata). A full information of the defect pattern inside the rock mass should include orientation, spacing, magnitude or determination and beance or openess; how permeable is the rock foundation (ie to what magnitude are the rock and roll defects such as joints, problems and bedsheets open); wherever can satisfactory supplies of construction materials such as clay-based, sand, gravel and rock and roll fill end up being obtained, if possible as close as possible to the dam site; will the mountain that must be excavated to provide a spillway for the dam become acceptable for use as rock and roll fill in the development of the dam embankment; does the spillway need concrete lining and an energy dissipation composition at its downstream end or perhaps is the spillway rock adequately erosion resilient that these can be omitted. To become able to solution the above questions the dam site must be explored simply by an experienced anatomist geologist. Strategies commonly used to learn sites for construction projects are; geological mapping of surface rock and roll outcrops;

geophysical surveys.  Seismic refraction is frequently used to determine interesting depth of overburden; excavation of...

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