Comments on: What do they use portable seismographs for at construction sites? http://earthquakequestions.com/what-do-they-use-portable-seismographs-for-at-construction-sites.htm Everything You Want To Know About Earthquakes Mon, 23 Apr 2012 18:35:24 +0000 hourly 1 http://wordpress.org/?v=3.3.2 By: td17_uk http://earthquakequestions.com/what-do-they-use-portable-seismographs-for-at-construction-sites.htm/comment-page-1#comment-1260 td17_uk Tue, 30 Jun 2009 14:13:50 +0000 http://earthquakequestions.com/what-do-they-use-portable-seismographs-for-at-construction-sites.htm#comment-1260 they are used for testing ground stability a sound wave is passed into the ground and picked up by the seismograph the results are studied and can tell the construction company about the makeup of the ground they are used for testing ground stability a sound wave is passed into the ground and picked up by the seismograph the results are studied and can tell the construction company about the makeup of the ground

]]> By: Scott M http://earthquakequestions.com/what-do-they-use-portable-seismographs-for-at-construction-sites.htm/comment-page-1#comment-1261 Scott M Tue, 30 Jun 2009 14:13:50 +0000 http://earthquakequestions.com/what-do-they-use-portable-seismographs-for-at-construction-sites.htm#comment-1261 To measure the movement of the ground to adjust their drawing for the predicted drift. Also to measure for possable sewer, water and storm drain breaks. To measure the movement of the ground to adjust their drawing for the predicted drift.

Also to measure for possable sewer, water and storm drain breaks.

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