<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:10pt"><div id="yiv4713448271"><div><div style="color:#000;background-color:#fff;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:10pt;"><div id="yiv4713448271yui_3_13_0_1_1384758252410_5465"></div><div id="yiv4713448271yui_3_13_0_1_1384758252410_5465">
<div style="text-align:left;" id="yiv4713448271yui_3_13_0_1_1384758252410_5596" class="yiv4713448271MsoNormal" dir="RTL"><span id="yiv4713448271yui_3_13_0_7_1384758252410_14" dir="LTR">Hello </span></div>
<div style="text-align:left;" id="yiv4713448271yui_3_13_0_1_1384758252410_5595" class="yiv4713448271MsoNormal" dir="RTL"><span id="yiv4713448271yui_3_13_0_1_1384758252410_5594" dir="LTR">I'm modeling soil subsidence due to
ground water withdrawal with Abaqus.</span></div>
<div style="text-align:left;" id="yiv4713448271yui_3_13_0_1_1384758252410_5593" class="yiv4713448271MsoNormal" dir="RTL"><span id="yiv4713448271yui_3_13_0_1_1384758252410_5592" dir="LTR">There is a soil column with 10 m
depth. Ground water level during a year decrease from 9 m height to 7m.</span><span style="
" lang="FA"></span></div>
<div style="text-align:left;" id="yiv4713448271yui_3_13_0_1_1384758252410_5591" class="yiv4713448271MsoNormal" dir="RTL"><span id="yiv4713448271yui_3_13_0_1_1384758252410_5598" dir="LTR">How can I model water level change?</span></div>
<div style="text-align:left;" id="yiv4713448271yui_3_13_0_1_1384758252410_5589" class="yiv4713448271MsoNormal" dir="RTL"><span id="yiv4713448271yui_3_13_0_1_1384758252410_5590" dir="LTR">I have 3 surfaces,<span style=""> </span>soil surface, priory water surface and secondary
water surface, what will be the magnitude of pore pressure at these surfaces in
different steps?<br>would you help me, please<br>thanks<br></span></div>
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