SOIL PROBLEMS ON THE SEVENOAKS BY-PASS

DIFFICULTIES WHICH HAD BEEN ENCOUNTERED WITH GROUND WATER AND EARTH MOVEMENTS IN THE CONSTRUCTION OF A SECTION OF THE SEVENOAKS BY-PASS ARE DISCUSSED. SOIL SURVEYS INDICATED THAT THE GROUND WAS EXTREMELY WATERLOGGED AND TREACHEROUS. IT WAS THEORIZED THAT ANCIENT LANDSLIDS HAD LEFT A NUMBER OF SLIP PLANES IN THE SOIL, COMPRISING THIN LAYERS VERY MUCH WEAKER THAN THE BULK OF THE SURROUNDING SOIL. A LARGE SOIL MOVEMENT OCCURRING IN CONNECTION WITH THE BY-PASS WORKS HAD BEEN CAUSED BY MOVEMENT ALONG THESE LAYERS OF WEAKNESS WHICH WERE ONLY APPROXIMATELY ONE HALF INCH THICK AND UNDETECTED BY NORMAL SOIL INVESTIGATION. THE RECOMMENDED COURSE OF ACTION INCLUDES STABILIZING AND SOME RE-ROUTING.

  • Supplemental Notes:
    • Vol 43, No 513, P 292
  • Publication Date: 1965-9

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  • Accession Number: 00233982
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 5 1994 12:00AM