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+{
+"cells": [
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "# Chapter 9: in situ stresses"
+ ]
+ },
+{
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 9.1: solved.sce"
+ ]
+ },
+ {
+"cell_type": "code",
+ "execution_count": null,
+ "metadata": {
+ "collapsed": true
+ },
+ "outputs": [],
+"source": [
+"clc\n",
+"//initialisation of variables\n",
+"Ds= 16.5 //kN/m^3\n",
+"S= 19.25 //kN/m^3\n",
+"g= 9.8 //kN/m^3\n",
+"h1= 6 //m\n",
+"h2= 13 //m\n",
+"//at point A\n",
+"Sa= 0\n",
+"Ua= 0\n",
+"Sa1= 0\n",
+"//at point B\n",
+"Sb= h1*Ds\n",
+"Ub= 0 \n",
+"Sb1= Sb-Ub\n",
+"//at point C\n",
+"Sc= h1*Ds+h2*S\n",
+"Uc= h2*g\n",
+"Sc1= Sc-Uc\n",
+"//results\n",
+"printf ('total pressure at C= % 2f kN/m^3 ',Sc)\n",
+"printf ('pore water pressure at C = % 2f kN/m^3 ',Uc)\n",
+"printf ('effective stress at point C= % 2f kN/m^3 ',Sc1)\n",
+""
+ ]
+ }
+,
+{
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 9.2: solved.sce"
+ ]
+ },
+ {
+"cell_type": "code",
+ "execution_count": null,
+ "metadata": {
+ "collapsed": true
+ },
+ "outputs": [],
+"source": [
+"clc\n",
+"//initialisation of variables\n",
+"h= 20 //ft\n",
+"g= 120 //kg/ft^3\n",
+"h1= 12 //ft\n",
+"w= 62.4 //kg/ft^3\n",
+"//calculations\n",
+"H= h-(h1*w/g)\n",
+"//results\n",
+"printf ('maximu depth that can be made in clay = % 2f ft ',H)"
+ ]
+ }
+,
+{
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 9.3: solved.sce"
+ ]
+ },
+ {
+"cell_type": "code",
+ "execution_count": null,
+ "metadata": {
+ "collapsed": true
+ },
+ "outputs": [],
+"source": [
+"clc\n",
+"//initialisation of variables\n",
+"G= 2.68\n",
+"e= 0.52\n",
+"g= 9.81 //kN/m^3\n",
+"h1= 0.7 //m\n",
+"h2= 1 //m\n",
+"h3= 1.5 //m\n",
+"h4= 2 //m\n",
+"//calculations\n",
+"//for soil A\n",
+"sa= (G+e)*g/(1+e)\n",
+"//point a\n",
+"Sa= h1*g+h2*sa\n",
+"u= (h2+h1+h3/2)*g\n",
+"Es= Sa-u\n",
+"//point b\n",
+"sb= h1*g+h4*sa\n",
+"ub= (h4+h1+h3)*g\n",
+"Eb= sb-ub\n",
+"i= h3/2\n",
+"s= i*g\n",
+"//results\n",
+"printf ('effective stress at point a= % 2f kN/m^2 ',Es)\n",
+"printf ('effective stress at point b= % 2f kN/m^2 ',Eb)\n",
+"printf ('seepage force per unit voume = % 2f kN/m^3 ',s)"
+ ]
+ }
+,
+{
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 9.4: solved.sce"
+ ]
+ },
+ {
+"cell_type": "code",
+ "execution_count": null,
+ "metadata": {
+ "collapsed": true
+ },
+ "outputs": [],
+"source": [
+"clc\n",
+"//initialisation of variables\n",
+"C0= 0.357\n",
+"H1= 30.5 //ft\n",
+"H2= 5 //ft\n",
+"w= 62.4 // lb/ft^3\n",
+"D= 20\n",
+"g= 112 // lb/ft^3\n",
+"//calculations\n",
+"G= g-w\n",
+"FS= D*G/(C0*w*(H1-H2))\n",
+"//results\n",
+"printf ('safety factor = % 2f ',FS)"
+ ]
+ }
+],
+"metadata": {
+ "kernelspec": {
+ "display_name": "Scilab",
+ "language": "scilab",
+ "name": "scilab"
+ },
+ "language_info": {
+ "file_extension": ".sce",
+ "help_links": [
+ {
+ "text": "MetaKernel Magics",
+ "url": "https://github.com/calysto/metakernel/blob/master/metakernel/magics/README.md"
+ }
+ ],
+ "mimetype": "text/x-octave",
+ "name": "scilab",
+ "version": "0.7.1"
+ }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}