SUBSURFACE INVESTIGATION FOR DESIGN AND CONSTRUCTION OF FOUNDATIONS OF BUILDINGS: PART II; PARTS III AND IV

THE GUIDE PROVIDES SOUND SUBSURFACE INFORMATION FOR SMALL AND MODERATE SIZED BUILDINGS. THE EXISTENCE OF THIN AQUIFIERS BETWEEN MULTIPLE COLLUVIAL LAYERS ABOVE WEATHERED ROCK IS REPORTED. THE DISCOVERY OF SUCH CONDITIONS IS OF IMPORTANCE IN THE DESIGN AND CONSTRUCTION OF SMALL AND MODERATE SIZED BUILDINGS AS WELL AS OTHER STRUCTURES. IN ADDITION TO RECORDING THE GROUND-WATER LEVEL DURING THE BORING OPERATION, THE DEPTH OF BORING AND CASING AND THE CORRESPONDING TIME AND DATA MUST BE NOTED. RECOMMENDATIONS ARE MADE REGARDING ACQUISITION OF DATA ON GROUND-WATER CONDITIONS. TO INDUCE OR RESTRICT MOVEMENT OF WATER LEVEL IN A BORING, WATER MAY BE REMOVED OR ADDED BEFORE RECORDING THE INITIAL READING. THE SPAN OF TIME FOR COMPLEMENTARY READINGS, MAY BE INSUFFICIENT FOR THE GROUND-WATER LEVEL TO STABILIZE SINCE IT DEPENDS ON THE PERMEABILITY OF THE SOILS AND THE HYDRAULIC GRADIENT. TO EXTEND THE TIME OF RECORDING THE GROUND- WATER LEVELS, A SMALL DIAMETER PERFORATED PLASTIC PIPE MAY BE INSERTED INTO THE COMPLETED BORING PRIOR TO REMOVING THE CASING. INTERPRETATION OF THE DATA OBTAINED, AS WELL AS THE INFORMATION IN THE BORING LOGS, SHOULD FORM THE BASIS FOR THE OPTIMIZATION OF SETTING THE DEPTHS OF PIEZOMETERS AND THEIR RESPECTIVE SEALS.

  • Authors:
    • Redel, C
  • Publication Date: 1973-4

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Filing Info

  • Accession Number: 00233387
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 17 1973 12:00AM