{"id":756,"date":"2015-07-21T15:41:54","date_gmt":"2015-07-21T15:41:54","guid":{"rendered":"http:\/\/ground.geophysicsgpr.com\/?page_id=756"},"modified":"2017-03-10T19:04:32","modified_gmt":"2017-03-10T19:04:32","slug":"masw","status":"publish","type":"page","link":"https:\/\/ground.geophysicsgpr.com\/en\/techniques\/seismic-ground-geophysics-methods\/masw","title":{"rendered":"MASW"},"content":{"rendered":"<div id=\"pl-756\"  class=\"panel-layout\" ><div id=\"pg-756-0\"  class=\"panel-grid panel-no-style\" ><div id=\"pgc-756-0-0\"  class=\"panel-grid-cell\" ><div id=\"panel-756-0-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"0\" ><div class=\"texte-home-right article panel-widget-style panel-widget-style-for-756-0-0-0\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<p>The Multi-channel Analysis of Surface Waves (MASW) is a seismic method used to evaluate the shear-wave velocities of subsurface materials through the analysis of the dispersion properties of Rayleigh surface waves (\"ground roll\"). The data are collected on the surface without the need of borehole. MASW data collection may be extended to 2D or 3D profiling\/imaging.<\/p>\n<p>The MASW seismic method allows to obtain the shear wave velocity (Vs) distribution in the ground and bedrock. It can be applied as a 1D sounding or as 2D profiles.<\/p>\n<h4><b>Typical applications of MASW include:<\/b><\/h4>\n<ul>\n<li>Vs30 calculated for Seismic Site Classification (National Building Code);<\/li>\n<li>Bedrock profiling;<\/li>\n<li>Calculating elastic moduli and soil properties;<\/li>\n<li>Calculating soil damping ratios;<\/li>\n<li>Locating loose soil areas and soft clay areas;<\/li>\n<li>Mapping\u00a0voids;<\/li>\n<li>Seismic shear-wave velocities\u00a0for liquefaction analysis;<\/li>\n<li>Geological mapping.<\/li>\n<\/ul>\n<p>For more information, please contact our\u00a0<span style=\"color: #808000\"><a style=\"color: #808000\" href=\"mailto:info@geophysicsgpr.com\">Ground Survey Team<\/a>.<\/span><\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-756-1\"  class=\"panel-grid panel-no-style\" ><div id=\"pgc-756-1-0\"  class=\"panel-grid-cell\" ><div id=\"panel-756-1-0-0\" class=\"so-panel widget widget_sow-image panel-first-child panel-last-child\" data-index=\"1\" ><div class=\"panel-widget-style panel-widget-style-for-756-1-0-0\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-image so-widget-sow-image-default-8b5b6f678277-756\"\n\t\t\t\n\t\t>\n<div class=\"sow-image-container\">\n\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ground.geophysicsgpr.com\/wp-content\/uploads\/sites\/7\/2015\/07\/Ground_Techniques_Seismic_MASW_11.png\" width=\"600\" height=\"238\" srcset=\"https:\/\/ground.geophysicsgpr.com\/wp-content\/uploads\/sites\/7\/2015\/07\/Ground_Techniques_Seismic_MASW_11.png 600w, https:\/\/ground.geophysicsgpr.com\/wp-content\/uploads\/sites\/7\/2015\/07\/Ground_Techniques_Seismic_MASW_11-300x119.png 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" title=\"Ground Techniques Seismic borehole\" alt=\"MASW Surface wave dispersion analysis\" \t\tclass=\"so-widget-image\"\/>\n\t<\/div>\n\n<\/div><\/div><\/div><\/div><div id=\"pgc-756-1-1\"  class=\"panel-grid-cell\" ><div id=\"panel-756-1-1-0\" class=\"so-panel widget widget_sow-image panel-first-child panel-last-child\" data-index=\"2\" ><div class=\"panel-widget-style panel-widget-style-for-756-1-1-0\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-image so-widget-sow-image-default-8b5b6f678277-756\"\n\t\t\t\n\t\t>\n<div class=\"sow-image-container\">\n\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ground.geophysicsgpr.com\/wp-content\/uploads\/sites\/7\/2015\/07\/Ground_Techniques_Seismic_MASW_2.png\" width=\"600\" height=\"238\" srcset=\"https:\/\/ground.geophysicsgpr.com\/wp-content\/uploads\/sites\/7\/2015\/07\/Ground_Techniques_Seismic_MASW_2.png 600w, https:\/\/ground.geophysicsgpr.com\/wp-content\/uploads\/sites\/7\/2015\/07\/Ground_Techniques_Seismic_MASW_2-300x119.png 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" title=\"Ground Techniques Seismic borehole graph\" alt=\"2D shear-wave velocity profile from MASW data\" \t\tclass=\"so-widget-image\"\/>\n\t<\/div>\n\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-756-2\"  class=\"panel-grid panel-no-style\" ><div id=\"pgc-756-2-0\"  class=\"panel-grid-cell\" ><div id=\"panel-756-2-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"3\" ><div class=\"texte-home-right article panel-widget-style panel-widget-style-for-756-2-0-0\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<h4>Marine MASW<\/h4>\n<p>Geophysics GPR has been a pioneer in the marine MASW technique. \u00a0Visit the <a href=\"http:\/\/marine.geophysicsgpr.com\/en\/marine-geophysics-techniques\/marine-seismic-techniques\/masw\">Marine<\/a> chapter of our website to learn more.<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>The Multi-channel Analysis of Surface Waves (MASW) is a seismic method used to evaluate the shear-wave velocities of subsurface materials through the analysis of the dispersion properties of Rayleigh surface waves (&#8220;ground roll&#8221;). The data are collected on the surface without the need of borehole. MASW data collection may be extended to 2D or 3D&#8230;  <a href=\"https:\/\/ground.geophysicsgpr.com\/en\/techniques\/seismic-ground-geophysics-methods\/masw\" class=\"more-link\" title=\"Read MASW\">Read more &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":1118,"parent":738,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-full-width.php","meta":{"content-type":"","footnotes":""},"class_list":["post-756","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/ground.geophysicsgpr.com\/en\/wp-json\/wp\/v2\/pages\/756","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ground.geophysicsgpr.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ground.geophysicsgpr.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ground.geophysicsgpr.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ground.geophysicsgpr.com\/en\/wp-json\/wp\/v2\/comments?post=756"}],"version-history":[{"count":2,"href":"https:\/\/ground.geophysicsgpr.com\/en\/wp-json\/wp\/v2\/pages\/756\/revisions"}],"predecessor-version":[{"id":3038,"href":"https:\/\/ground.geophysicsgpr.com\/en\/wp-json\/wp\/v2\/pages\/756\/revisions\/3038"}],"up":[{"embeddable":true,"href":"https:\/\/ground.geophysicsgpr.com\/en\/wp-json\/wp\/v2\/pages\/738"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ground.geophysicsgpr.com\/en\/wp-json\/wp\/v2\/media\/1118"}],"wp:attachment":[{"href":"https:\/\/ground.geophysicsgpr.com\/en\/wp-json\/wp\/v2\/media?parent=756"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}