Lecture Notes

These lecture notes are the original material of Professor Charles Ladd, who taught the class every year from 1960 until 2001, refining the notes each year. Starting in the spring of 2003, the class was taught every other year by Professor Andrew Whittle and Dr. Lucy Jen. They have added their own materials and methods to teaching the class, but these lecture notes remain the foundation of the teaching materials.

In the table below, the topics column lists the subject of each lecture session, and the lecture notes link to that session's handout.

SES # LECTURERS TOPICS LECTURE NOTES
1 AJW and LCJ Overview, Organization, Soil Composition

Clay-Water Forces		 Overview and Soil Composition (This resource may not render correctly in a screen reader.PDF)
2 LCJ Clay-Water Forces, Interparticle Forces Clay-Water Forces (This resource may not render correctly in a screen reader.PDF - 1.0 MB)

Interparticle Forces: Components and Interaction (This resource may not render correctly in a screen reader.PDF)
3 LCJ Strength Generation in Soils

Soil Structure		 Strength Generation in Soils (This resource may not render correctly in a screen reader.PDF)

Soil Structure: Effects of Clay Type and Environmental Factors
4 LCJ Basic Strength Principles

Simple Clay (Laddite) - NC		 Basic Strength Principles and Stress-Strain-Strength; Behavior of "Simple Clay" (This resource may not render correctly in a screen reader.PDF)
5 LCJ Laddite - OC

Hvorslev Parameters, SB Surface		 Soil Modeling (This resource may not render correctly in a screen reader.PDF - 1.2 MB)
6 AJW Plasticity

Mechanisms Controlling Compressibility of Clays		 Mechanisms Controlling Compressibility of Clays
7 AJW Mechanisms Controlling Compressibility of Clays  
8 AJW K0 and Stress History

Stress History Profiling		 Consolidation Behavior of Saturated Soils (This resource may not render correctly in a screen reader.PDF - 4.4 MB)

1-D Consolidation: Magnitude of Final Settlement (This resource may not render correctly in a screen reader.PDF - 3.3 MB)
9 AJW Rates of Consolidation

Hydraulic Conductivity		 Rate of Consolidation and Coefficient of Permeability
10 AJW 2° Compression Secondary Compression
11 AJW Non-Linear Consolidation

2D/3D Effects		 Two and Three Dimensional Loadings-->
12 LCJ Problem Soils - 1

Structured Clays, Varved Clays and Peat		 Problem Soils (This resource may not render correctly in a screen reader.PDF - 3.8 MB)
13 LCJ Problem Soils - 2

Expansive Soils, Residual Soils		  
14 LCJ Embankments on Peat

Surcharging to Control 2° Compression		 Strength-Deformation Behavior of Saturated Clays and Drained/Undrained Stability (This resource may not render correctly in a screen reader.PDF - 2.6 MB)
15 LCJ Strength 1A and 1B

Strength 1C		  
16 LCJ Strength 1C and IIA

Strength IIB		 A Measurement of Undrained Strength for UU Case (This resource may not render correctly in a screen reader.PDF - 2.4 MB)
17 LCJ Strength IIB Undrained Shear of Cohesive Soils
18 LCJ Strength IIC - Sample Disturbance Stress System: Experimental Techniques and Results (This resource may not render correctly in a screen reader.PDF - 5.6 MB)
19 LCJ Strength IID Influence of Time on Stress-Strain-Strength Behavior of Clays During Undrained Shear (This resource may not render correctly in a screen reader.PDF - 3.5 MB)
20 LCJ Strength IID

Strength IID, IIE and IIF		 Staged Construction (This resource may not render correctly in a screen reader.PDF - 3.3 MB)
21 AJW Shear Modes

Clay Anisotropy and E3 Soil Model		  
22 AJW Sands Stress-Strain-Strength Behavior of Cohesionless Soils
23 AJW Sands (cont.) Effects of Sand Structure
24 AJW Compacted Clay Behavior of Compacted Clays
25 AJW Compacted Clay (cont.)