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Geotechnical Engineering-II [Lec #12: Consolidation Settlement Computation]

Class notes of Geotechnical Engineering course I used to teach at UET Lahore. Feel free to download the slide show.
Anyone looking to modify these files and use them for their own teaching purposes can contact me directly to get hold of editable version.

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Geotechnical Engineering-II [Lec #12: Consolidation Settlement Computation]

  1. 1. 1 Geotechnical Engineering–II [CE-321] BSc Civil Engineering – 5th Semester by Dr. Muhammad Irfan Assistant Professor Civil Engg. Dept. – UET Lahore Email: mirfan1@msn.com Lecture Handouts: https://groups.google.com/d/forum/geotech-ii_2015session Lecture # 12 13-Oct-2017
  2. 2. 2 MAGNITUDE OF SETTLEMENT CALCULATION Consolidation Settlement
  3. 3. 3 CONSOLIDATION TEST Pressure ~ Deformation Curve p e aV    e ~ p plot e p Δe Δp aV = coefficient of compressibility Cc = compression index mV = coefficient of volume change Δe log (p2/p1) e log p 1 2log p p e CC   e ~ log p plot e a m V V   1 Strain p Δe Δp p mV    e e ~ p plot
  4. 4. 4 CONSOLIDATION – SUMMARY H e e Ssettlement o c    1  = ’ + u         VC HT t 2 %60; 1004 2        ufor u T  %60 );100(log933.0781.1 10   ufor uT AG W H wS S S    S SwS W WAGH e   )( 0  1 2log p p e CC          HHVV mV                ' '' log 1 vo vo o c c e C HS                  ' '' log 1 vo vo o r c e C HS                                 ' '' log 1' ' log 1 p vo o c vo p o r c e C H e C HS     For NCC For OCC If OCC is loaded beyond σp’ )10(009.0  LLCC Cr CC  1.0 Terzaghi & Peck (1948)
  5. 5. 5 Practice Problem #1
  6. 6. 6 CONCLUDED REFERENCE MATERIAL An Introduction to Geotechnical Engineering (2nd Ed.) Robert D. Holtz & William D. Kovacs Chapter #8 & 9

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