Lecture 4 Notes Magnitude of Settlement
St = Si + Sc + Ss
Si = instantaneous settlement (elastic)
Sc = consolidation settlement (Rearranging particles), (time)
Ss = secondary settlement (plastic + elastic), (time)
Compressibility of soils due to
(1) defor
Supplement 4 Soil Sampling
The pictures below represent typical soil sampling procedures used for most projects in our area.
Figures 1 through 9 are of the standard penetration test (SPT).
Standard Penetration Test (disturbed sample):
Figure 1. Off-road d
Supplement 2 Mohrs Circle & Shear Strength Examples
(1)
Given: Stress on an element as shown in the following figure.
Find: The normal stress and the shear stress on the plane inclined at = 35 from the
horizontal reference plane.
Solution:
(2)
Given: The
Lecture 5 Notes Determination of Rate of Settlement
Based on Terzaghis one-dimensional consolidation theory
Terzaghi derived a governing differential equation for describing the rate change of
excess pore water pressure along the sample depth
Cv2u/z2 ) =
Lecture 2 Notes Phase Relationships
B. Weight-Volume Relationships (Phase Relations)
Soil is inherently "multiphase". It contains three distinct phases: Solid (mineral particles),
gas (air), and liquid (usually water). It is very important that students o
Lecture 6 Stress Path
Given:
Figures 1 and 2
Required: Verify that stress paths A, B, and C of Fig.1, and A and D of Fig. 2 are correct as
shown.
Solution:
The initial conditions for all stress paths in Fig.1 are p = (v + h ) / 2 = v = h and q = 0.
Final
Lecture 3 Notes Two Dimensional Flow
In the previous section the seepage problems discussed were all lab models consisting of
one-dimensional flow. In field construction, structures used for water barriers generally
involve two- or three-dimensional seepa
Lecture 1 Notes - Introduction
A.
Engineering Geology, Soil Mechanics and Geotechnical Engineering
Engineering Geology - provides information to engineering through description of the
structure and attributes of rocks connected with engineering work. It a