PLASTIC STATE OF STRESS AROUND A DEEP WELL

A MATHEMATICAL ANALYSIS WAS CONDUCTED OF STRESS DISTRIBUTIONS AROUND AN UNLINED DRILL HOLE FOR A DEEP WELL. EQUATIONS OF EQUILIBRIUM ARE USED WITH STRESS FUNCTIONS AND PLASTICITY AND ELASTICITY FACTORS. THE PLASTIC ACTION MAKES IT POSSIBLE FOR THE GREAT CIRCUMFERENTIAL PRESSURES THAT ARE NECESSARY FOR STABILITY TO OCCUR NOT AT THE CYLINDRICAL SURFACE OF THE HOLE BUT AT SOME DISTANCE BEHIND THE SURFACE, WHERE THEY CAN BE COMBINED WITH SUFFICIENTLY GREAT RADIAL PRESSURES. THE DERIVED FORMULAS SERVE TO EXPLAIN THE CIRCUMSTANCES UNDER WHICH THE DRILL HOLE FOR A DEEP WELL MAY REMAIN STABLE.

  • Supplemental Notes:
    • Vol 27, pp 387-391
  • Corporate Authors:

    Contributions to Soils Mechanics

    /Boston Society Civil Engineers
    ,   United States 
  • Authors:
    • WESTERGAARD, H M
  • Publication Date: 1940

Subject/Index Terms

Filing Info

  • Accession Number: 00234433
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 19 1994 12:00AM