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A platform for research: civil engineering, architecture and urbanism
Concepts of geotechnical mapping for river valley projects in Western India
Summary The paper discusses the significance of engineering geology maps, choice of mappable units and scale, and their utility in feasibility, design, construction and post-construction stages. These aspects and the scale are governed by the nature of the superstructure, geomorphological, geological, tectonic and geoseismological setting of the area. In India, it is incumbent to have a geological appraisal (preferably by the Geological Survey of India) before major Civil Engineering Projects are taken up. Engineering geology mapping is expected to suit the phases of planning, design and construction. The scale of engineering geology maps varies from 1∶63,360 to 1∶120. Large scale maps are prepared to project specific geological features. Base maps are primarily conventional geological maps, aerial photos and Landsat imageries. Maps for construction materials portray the utility of particular deposits and their economics. For environmental and urban geology studies, a separate method of mapping is adopted. Collection of subsurface data from underground exploration by drifts, adits etc., in the form of detailed logs and maps enable evaluation of the competence of the rock mass vis-a-vis the superincumbent structure. The existing methods present the geological, lithological and structural data with particular attention to tectonic features likely to influence Civil Engineering Works. The paper illustrates these aspects from the case studies of major projects in Western India. The utility of engineering geology maps meant for different aspects will in future also include adequate geomechanical data. An attempt at standardisation of engineering geology maps for different purposes would be necessary.
Concepts of geotechnical mapping for river valley projects in Western India
Summary The paper discusses the significance of engineering geology maps, choice of mappable units and scale, and their utility in feasibility, design, construction and post-construction stages. These aspects and the scale are governed by the nature of the superstructure, geomorphological, geological, tectonic and geoseismological setting of the area. In India, it is incumbent to have a geological appraisal (preferably by the Geological Survey of India) before major Civil Engineering Projects are taken up. Engineering geology mapping is expected to suit the phases of planning, design and construction. The scale of engineering geology maps varies from 1∶63,360 to 1∶120. Large scale maps are prepared to project specific geological features. Base maps are primarily conventional geological maps, aerial photos and Landsat imageries. Maps for construction materials portray the utility of particular deposits and their economics. For environmental and urban geology studies, a separate method of mapping is adopted. Collection of subsurface data from underground exploration by drifts, adits etc., in the form of detailed logs and maps enable evaluation of the competence of the rock mass vis-a-vis the superincumbent structure. The existing methods present the geological, lithological and structural data with particular attention to tectonic features likely to influence Civil Engineering Works. The paper illustrates these aspects from the case studies of major projects in Western India. The utility of engineering geology maps meant for different aspects will in future also include adequate geomechanical data. An attempt at standardisation of engineering geology maps for different purposes would be necessary.
Concepts of geotechnical mapping for river valley projects in Western India
Srinivasan, P. B. (author) / Shenoi, R. S. (author)
1979
Article (Journal)
Electronic Resource
English
BKL:
56.00$jBauwesen: Allgemeines
/
38.58
Geomechanik
/
38.58$jGeomechanik
/
56.20
Ingenieurgeologie, Bodenmechanik
/
56.00
Bauwesen: Allgemeines
/
56.20$jIngenieurgeologie$jBodenmechanik
RVK:
ELIB18
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