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+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:2af8058b6581fea92b2edf9bd8732fbea78d002de843d3df7b927ba2074ae2e2"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter14-Lateral Earth Pressure: \n",
+      "Curved Failure Surface"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Ex1-497"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "import math\n",
+      "#a.Coulomb\u2019s theory\n",
+      "#b.Terzaghi and Peck\u2019s wedge theory\n",
+      "#c. Shields and Tolunay\u2019s solution (method of slices)\n",
+      "#d.Zhu and Qian\u2019s solution (method of triangular slices)\n",
+      "G=15.7\n",
+      "a=0.\n",
+      "b=15.\n",
+      "c=30.\n",
+      "H=3.\n",
+      "Kp=4.977 ## from table 13.9\n",
+      "Pp=Kp*G*H**2./2.\n",
+      "print'%s %.1f %s'%('a)the passive force = ',Pp,' kN/m')\n",
+      "## for part b\n",
+      "Kp=4.53\n",
+      "Pp=Kp*G*H**2./2.\n",
+      "print'%s %.1f %s'%(' b)the passive force = ',Pp,' kN/m')\n",
+      "## for part c\n",
+      "Kp=4.13\n",
+      "Pp=Kp*G*H**2/2.\n",
+      "print'%s %.1f %s'%(' c)the passive force =',Pp,' kN/m')\n",
+      "##for part d\n",
+      "Kp=4.56\n",
+      "Pp=Kp*G*H**2/2.\n",
+      "print'%s %.1f %s'%(' d)the passive force =',Pp,' kN/m')\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "a)the passive force =  351.6  kN/m\n",
+        " b)the passive force =  320.0  kN/m\n",
+        " c)the passive force = 291.8  kN/m\n",
+        " d)the passive force = 322.2  kN/m\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Ex2-pg507"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "import math\n",
+      "#calculate the design strut loads.\n",
+      "G=16.\n",
+      "H=7.\n",
+      "c=30.\n",
+      "Ta=0.65*G*H*(math.tan(30./57.3))**2\n",
+      "A=Ta*3.*3./4.\n",
+      "B1=Ta*3.-54.61\n",
+      "C=Ta*4.*4./4.\n",
+      "B2=Ta*4.-97.08\n",
+      "s=2.\n",
+      "As=A*s\n",
+      "Bs=(B1+B2)*s\n",
+      "Cs=C*s\n",
+      "print'%s %.1f %s'%( 'The strut loads at level A = ',As,' kN')\n",
+      "print'%s %.1f %s'%( ' The strut loads at level B = ',Bs,' kN')\n",
+      "print'%s %.1f %s'%( ' The strut loads at level C =',Cs,' kN')\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The strut loads at level A =  109.2  kN\n",
+        " The strut loads at level B =  36.3  kN\n",
+        " The strut loads at level C = 194.1  kN\n"
+       ]
+      }
+     ],
+     "prompt_number": 3
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
+\ No newline at end of file