Engineering Geology

Engineering geology is defined by same engineering problems solved to use of application of geological knowladge. Enginering geology understanding of geologic phenomena ,geologic problems and solution of engineering problems.Engineering geologists provide geological and geotechnical recommendations ,design of human development ,analysis to various type of structures.

Engineering Geology

Engineering geology studies

  • environmental impact analysis
  • design
  • construction phases
  • works projects
  • geological hazard assessments
  • material properties
  • slope stability
  • geotechnical
  • seismic investigation

Engineering geology investigation and studies

  • for residential, commercial and industrial developments;
  • for public works such as a stormwater drainage system, power plant, wind turbine, transmission line, sewage treatment plant, water treatmentplant, pipeline (aqueduct, sewer, outfall), tunnel, trenchless construction, canal, dam, reservoir, building foundation, railroad, transit, highway, bridge, seismic retrofit, power generation facility, airport and park;
  • for mine and quarry developments, mine tailing dam, mine reclamationand mine tunneling;
  • for wetland and habitat restoration programs;
  • for government, commercial, or industrial hazardous waste remediation sites;
  • for coastal engineering, sand replenishment, bluff or sea cliff stability, harbor, pier and waterfront development;
  • for offshore outfall, drilling platform and sub-sea pipeline, sub-sea cable; and
  • for other types of facilities.

Typical geologic hazards or other adverse conditions evaluated by an engineering geologist include:

  • fault rupture on seismically active faults ;
  • seismic and earthquake hazards (ground shaking, liquefaction, lurching, lateral spreading, tsunami and seiche events);
  • landslide, mudflow, rockfall, debris flow, and avalanche hazards ;
  • unstable slopes and slope stability;
  • erosion;
  • slaking and heave of geologic formations, such as frost heaving;
  • ground subsidence (such as due to ground water withdrawal, sinkholecollapse, cave collapse, decomposition of organic soils, and tectonicmovement);
  • volcanic hazards (volcanic eruptions, hot springs, pyroclastic flows, debris flow, debris avalanche, gas emissions, volcanic earthquakes);
  • non-rippable or marginally rippable rock requiring heavy ripping or blasting;
  • weak and collapsible soils, foundation bearing failures;
  • shallow ground water/seepage; and
  • other types of geologic constraints.

The methods used by engineering geologists in their studies include

  • geologic field mapping of geologic structures, geologic formations, soil units and hazards;
  • the review of geologic literature, geologic maps, geotechnical reports, engineering plans, environmental reports, stereoscopic aerial photographs, remote sensing data, Global Positioning System (GPS) data, topographic maps and satellite imagery;
  • the excavation, sampling and logging of earth/rock materials in drilled borings, backhoe test pits and trenches, fault trenching, and bulldozer pits;
  • geophysical surveys (such as seismic refraction traverses, resistivitysurveys, ground penetrating radar (GPR) surveys, magnetometersurveys, electromagnetic surveys, high-resolution sub-bottom profiling, and other geophysical methods);
  • deformation monitoring as the systematic measurement and tracking of the alteration in the shape or dimensions of an object as a result of the application of stress to it manually or with an automatic deformation monitoring system;

Soil and rock mechanics

Soil mechanics is a discipline that applies principles of engineering mechanics, e.g. kinematics, dynamics, fluid mechanics, and mechanics of material, to predict the mechanical behaviour of soils. Rock mechanics is the theoretical and applied science of the mechanical behaviour of rock and rock masses; it is that branch of mechanics concerned with the response of rock and rock masses to the force-fields of their physical environment. The fundamental processes are all related to the behaviour of porous media. Together, soil and rock mechanics are the basis for solving many engineering geology problems.

Rock and Soil Mechanics Laboratory
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