SLURRY TRENCH STABILITY--THEORETICAL AND PRACTICAL ASPECTS

This article discusses the three major factors to be considered in an analysis of the stability of diaphragm wall panel excavation. These major factors are mud density, wall cake and soil arching. A fourth factor, the effect on granular soils of the mud penetration of the ground at the sides of the trench, is also examined. Stability difficulties encountered in slurry trench excavation in stiff fissured clays were found to be caused to large extent by the fissuring of the clay. An additional cause of failure was the lubrication of potential slip planes caused by loss of fluid through the wall cake and aided by swelling caused by the action of large horizontal forces existing within such clay. A further cause of trench instability is the saline conditions in both cohesive and noncohesive formations. Remedies are discussed for correcting the above mentioned sources of instability.

  • Availability:
  • Corporate Authors:

    Foundation Publications Limited

    7 Ongar Road
    Brentwood CM15 9AU, Essex,   England 
  • Authors:
    • PULLER, M J
  • Publication Date: 1974-9

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 24-36
  • Serial:
    • GROUND ENGINEERING
    • Volume: 7
    • Issue Number: 5
    • Publisher: EMAP CONSTRUCT LIMITED
    • ISSN: 0017-4653

Subject/Index Terms

Filing Info

  • Accession Number: 00265658
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 27 1975 12:00AM