Brief Report
Dec 1975
Active Thrust on Braced Cut in Clay
Authors: Braja M. Das and Gerald R. Seeley, AM.ASCEAuthor Affiliations
Publication: Journal of the Construction Division
Volume 101, Issue 4
Abstract
Active thrust in a braced cut is considerable different then that calculated by Coulomb.s or Rankine.s theory, due to the restriction imposed on the yielding of lateral support. Due to the lateral deformation conditions in braced cuts, the surface of the failure wedge is generally assumed to intersect the ground surface at a right angle. For a C − Φ soil, the curve of sliding approximates an arc of a logarithmic spiral. For undrained shear of saturated clays (Φ = 0 condition), the curve of sliding transforms into an arc of a circle with the center of the circle located at the ground level. For temporary deep braced cuts in soft and medium clays, engineers sometimes resort to the tedious trial-and-error process to determine the maximum active thrust for comparison with semi-empirical design values. In the present study, using Terzaghi.s general wedge theory, simple generalized equations are presented for active thrust calculations in saturated soft and medium clays under varying conditions of construction.
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Published In
Journal of the Construction Division
Volume 101 • Issue 4 • December 1975
Pages: 945 - 949
Copyright
© 1975 American Society of Civil Engineers.
History
Published in print: Dec 1975
Published online: Feb 11, 2021
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Authors
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Braja M. Das
Assoc. Prof., Civ. Engrg. Dept., South Dakota State Univ., Brookings, S. Dak.
Gerald R. Seeley, AM.ASCE
Asst. Prof., Dept. of Civ. Engrg., Tri-State Coli., Angola, Ind.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.