1.322 | Spring 2005 | Graduate

Soil Behavior

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.

1 AJW and LCJ Overview, Organization, Soil Composition

Clay-Water Forces

Overview and Soil Composition (PDF)
2 LCJ Clay-Water Forces, Interparticle Forces Clay-Water Forces (PDF - 1.0 MB)

Interparticle Forces: Components and Interaction (PDF)

3 LCJ Strength Generation in Soils

Soil Structure

Strength Generation in Soils (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” (PDF)
5 LCJ Laddite - OC

Hvorslev Parameters, SB Surface

Soil Modeling (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 (PDF - 4.4 MB)

1-D Consolidation: Magnitude of Final Settlement (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 (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 (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 (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 (PDF - 5.6 MB)
19 LCJ Strength IID Influence of Time on Stress-Strain-Strength Behavior of Clays During Undrained Shear (PDF - 3.5 MB)
20 LCJ Strength IID

Strength IID, IIE and IIF

Staged Construction (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.)  

Course Info