Difference between revisions of "Gpec8"
Jump to navigation
Jump to search
| Line 11: | Line 11: | ||
== EC8 site categories == | == EC8 site categories == | ||
| − | Category A : Rock, <math> 800 m/s < VS30 </math> | + | Category A : Rock, <math> 800 m/s < VS30 </math> AND <math>VS05 > 360 m/s </math> |
Category B : Stiff soil / soft rock, <math> 360 m/s < VS30 < 800 m/s </math> | Category B : Stiff soil / soft rock, <math> 360 m/s < VS30 < 800 m/s </math> | ||
Category C : Normal soil <math> 180 m/s < VS30 < 360 m/s </math> | Category C : Normal soil <math> 180 m/s < VS30 < 360 m/s </math> | ||
Revision as of 13:35, 9 March 2010
Contents
Synopsis
gpec8 [OPTIONS] [FILE]
Description
Determines the the EC8 category of a site for horizontally layered models given through stdin or FILE.
The input is the soil column (in a format similar to gpsh The output is the EC8 site category depending on the value of the time-averaged velocity over the top 30 m ("VS30")
EC8 site categories
Category A : Rock, AND Category B : Stiff soil / soft rock, Category C : Normal soil Category D : Soft soil, Category E : Thin soft soil with and a thickness between 5 and 20 m , overlying a much stiffer unit with Category S1 : Special category 1 : very soft soil (), or containing at least 10 m of soft clays/silts with high platicity index Category S2 : Special category 2 : liquefiable soils, or all those not covered by A-E and S1 category: !! Cannot be identified from the sole VS velocity profile
Format for layered models:
Line 1 : <number of layers n including half-space for first model> Line 2 : <thickness (m)> <Vp (m/s)> <Vs (m/s)> <Density (kg/m3)>[ <Qp> <Qs>] .... Line n+1 : 0 <Vp (m/s)> <Vs (m/s)> <Density (kg/m3)>[ <Qp> <Qs>] Line n+2 : <number of layers m including half-space for a second model - if wished> Line n+3 : <thickness (m)> <Vp (m/s)> <Vs (m/s)> <Density (kg/m3)>[ <Qp> <Qs>] .... Line n+m+2 : 0 <Vp (m/s)> <Vs (m/s)> <Density (kg/m3)>[ <Qp> <Qs>] Line n+m+3 : <number of layers l including half-space for a third model - if wished> ....
Quality factors are not mandatory. Any number of models can be given as input.
Gpec8 options : Only Generic options
- -help <SECTION> Show help about options. SECTION may be empty or: all, generic
- -version Show version information
- -app-version Show short version information
- -reportbug Start bug report dialog, information about bug is
passed through stdin. This option is used
internally to report bugs if option -nobugreport is
not specified.
- -reportint Start bug report dialog, information about
interruption is passed through stdin. This option
is used internally to report interruptions if
option -nobugreport is not specified.
- -nobugreport Do not generate bug report in case of error
Examples
gpec8 < test.model
Calculate the EC8 site category for the soil columns in "test.model"
Copyright
Copyright (c) 2002-2008 Marc Wathelet. All rights reserved. See http://www.geopsy.org for more information.
