DEEP-WELL PUMPING AND SUBSIDENCE IN THE BANGKOK AREA

EVIDENCE IS PRESENTED TO SHOW THAT THE EXTRACTION OF WATER FROM THE DEEP AQUIFERS UNDERLYING BANGKOK IS CAUSING DECLINES IN THE PIEZOMETRIC PRESSURES IN THE NORMALLY CONSOLIDATED BANGKOK CLAY. FURTHER DECLINES COULD RESULT IN A GENERAL SUBSIDENCE OF THE CITY AREA. THE PROBLEM OF SUBSIDENCE CAUSED BY DEEP-WELL PUMPING IS OUTLINED AND TWO HYPOTHETICAL MODES OF SETTLEMENT ARE PRESENTED. SETTLEMENTS ARE CALCULATED AS A FUNCTION OF WATER TABLE DRAWDOWN FOR FOUR SITES IN BANGKOK. IT IS CONCLUDED THAT DRAWDOWNS MUST BE LIMITED TO A FEW METRES IF DAMAGE IS TO BE AVOIDED, AND THAT INSUFFICIENT DATA EXIST AT PRESENT FOR AN ADEQUATE INVESTIGATION OF THE WHOLE PROBLEM. /AUTHOR/

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: p. 1-7
  • Serial:
    • Issue Number: 1

Subject/Index Terms

Filing Info

  • Accession Number: 00230462
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Conf Paper
  • Files: TRIS
  • Created Date: Nov 14 1973 12:00AM