TABLE OF CONTENTS The following notation is used in this chapter:
| SYMBOL | DEFINITION | |
| a | Acceleration | |
| a max | Maximum horizontal acceleration at ground surface (also known as peak ground acceleration) | |
| a y | Yield acceleration, which is defined as that acceleration that produces a pseudostatic FS = 1.0 | |
| c | Cohesion based on total stress analysis | |
| c ? | Cohesion based on effective stress analysis | |
| d | Downslope movement caused by earthquake | |
| D H | Horizontal ground displacement due to lateral spreading | |
| D r | Relative density of soil | |
| D 50 | Grain size corresponding to 50 percent finer of soil | |
| F | Fines content of soil comprising layer T | |
| F h | Pseudostatic lateral force | |
| FS | Factor of safety | |
| FS L | Factor of safety against liquefaction | |
| g | Acceleration of gravity | |
| h | Depth below ground surface (for calculation of r u) | |
| H | Height of free face | |
| k h | Seismic coefficient, also known as pseudostatic coefficient | |
| k v | Vertical pseudostatic coefficient | |
| K ? | Factor used to adjust factor of safety against liquefaction for sloping ground | |
| L | Length of slip surface | |
| L | Horizontal distance from base of free face to site location (Sec. 9.5.2) | |
| m | Total mass of slide material | |
| M | Magnitude of design earthquake | |
| M L | Local magnitude of earthquake | |
| N | Normal force on slip surface | |
| N ? | Effective normal force on slip surface | |
| ( N 1) 60 | N value corrected for... |
