From 251a07c4cbed1a5a960f5ed416ce6ac13c8152b7 Mon Sep 17 00:00:00 2001
From: hardythe1
Date: Thu, 11 Jun 2015 17:31:11 +0530
Subject: add books

---
 .../Chapter9.ipynb                                 | 205 +++++++++++++++++++++
 1 file changed, 205 insertions(+)
 create mode 100755 Principles_Of_Geotechnical_Engineering_by_B._M._Das/Chapter9.ipynb

(limited to 'Principles_Of_Geotechnical_Engineering_by_B._M._Das/Chapter9.ipynb')

diff --git a/Principles_Of_Geotechnical_Engineering_by_B._M._Das/Chapter9.ipynb b/Principles_Of_Geotechnical_Engineering_by_B._M._Das/Chapter9.ipynb
new file mode 100755
index 00000000..005e638c
--- /dev/null
+++ b/Principles_Of_Geotechnical_Engineering_by_B._M._Das/Chapter9.ipynb
@@ -0,0 +1,205 @@
+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:c82d7ef2a69a4d72efc2edfc8621bdf4ff77be194f7e8e01b4cf1b42672764ab"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter9-In Situ Stresses"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Ex1-pg230"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "import math\n",
+      "#calculate total pressure and pore water pressure and effective stress at point\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",
+      "print'%s %.2f %s'% ('total pressure at C= ',Sc,' kN/m^3 ')\n",
+      "print'%s %.2f %s'% ('pore water pressure at C = ',Uc,' kN/m^3 ')\n",
+      "print'%s %.2f %s'% ('effective stress at point C=',Sc1,' kN/m^3 ')\n",
+      "\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "total pressure at C=  349.25  kN/m^3 \n",
+        "pore water pressure at C =  127.40  kN/m^3 \n",
+        "effective stress at point C= 221.85  kN/m^3 \n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Ex2-pg233"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#calculate maximu depth that can be made in clay\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",
+      "print'%s %.2f %s'% ('maximu depth that can be made in clay = ',H,' ft ')\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "maximu depth that can be made in clay =  13.76  ft \n"
+       ]
+      }
+     ],
+     "prompt_number": 8
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Ex3-pg236"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#calculate effective stress at point a and b and see page force per unit voume\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",
+      "print'%s %.2f %s'% ('effective stress at point a=',Es,' kN/m^2 ')\n",
+      "print'%s %.2f %s'% ('effective stress at point b= ',Eb,'kN/m^2 ')\n",
+      "print'%s %.2f %s'% ('seepage force per unit voume = ',s,' kN/m^3 ')\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "effective stress at point a= 3.49  kN/m^2 \n",
+        "effective stress at point b=  6.97 kN/m^2 \n",
+        "seepage force per unit voume =  7.36  kN/m^3 \n"
+       ]
+      }
+     ],
+     "prompt_number": 9
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Ex4-pg239"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#calculate safety factor\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",
+      "print'%s %.1f %s'% ('safety factor =',FS,' ')\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "safety factor = 1.7  \n"
+       ]
+      }
+     ],
+     "prompt_number": 5
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
\ No newline at end of file
-- 
cgit