THE NEED FOR EXPANDING THE SCOPE OF GEOTECHNICAL INVESTIGATIONS

THIS REPORT EXAMINES THE NEED FOR EXPANDING THE SCOPE OF GEOTECHNICAL INVESTIGATIONS TO INSURE THAT ALL OF THE POTENTIAL GEOLOGICAL HAZARDS ARE PROPERLY IDENTIFIED AND EVALUATED. THREE POTENTIAL HAZARDS, NAMELY LANDSLIDES, FAULTING, AND SUBSIDENCE, ARE USED FOR ILLUSTRATIVE PURPOSES. THE REASONS WHY THE SCOPE OF INVESTIGATIONS NEED TO BE EXPANDED ARE DETAILED. THE CONSEQUENCES OF MAJOR SITE FAILURES AND GEOLOGICAL HAZARDS ARE COSTLY IN AN URBANIZED SOCIETY. ECONOMIC AND HUMAN LIFE LOSSES IN CALIFORNIAN AND PERUVIAN EARTHQUAKES ARE GIVEN. THE GEOLOGICAL CONDITIONS AND PROCESSES THAT INFLUENCE MAN-MADE STRUCTURES ARE REGIONAL IN NATURE, AND THEY SHOULD BE RECOGNIZED TO DETERMINE THE POTENTIAL HAZARDS THAT MAY AFFECT A GIVEN AREA. GEOLOGICAL CONDITIONS THAT WILL AFFECT SPECIFIC SITES CANNOT ALWAYS BE RECOGNIZED AT THE SCALE OR WITHIN THE LIMITS OF A SITE INVESTIGATION. THE IDENTIFICATION OF POTENTIAL HAZARDS ON SOME PROJECTS MAY NOT BE POSSIBLE DUE TO THE MAGNITUDE OF THE GEOLOGICAL PROCESS, THE LACK OF APPARENT ACTIVITY, THE LACK OF PRIOR INVESTIGATIONS, CONCEALMENT, OR THE LACK OF A AWARENESS THAT A PROBLEM EXISTS. THE SCOPE OF MOST GEOTECHNICAL INVESTIGATIONS MUST BE EXPANDED BEYOND THE BOUNDARIES OF THE SPECIFIC PROJECTS TO A STUDY OF REGIONAL GEOLOGICAL CONDITIONS AND PROCESSES. IDENTIFICATION OF POTENTIAL HAZARDS ON A REGIONAL BASIS WILL ENABLE EVALUATION AND FURTHER INVESTIGATION OF SPECIFIC SITES OF PLANNING PROJECTS.

Media Info

  • Features: Figures; Tables;
  • Pagination: p. 1-12

Subject/Index Terms

Filing Info

  • Accession Number: 00230147
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 4 1973 12:00AM