{"id":3877,"date":"2014-11-21T16:43:29","date_gmt":"2014-11-21T16:43:29","guid":{"rendered":"https:\/\/www.geostru.eu\/?p=3877"},"modified":"2016-07-19T15:30:27","modified_gmt":"2016-07-19T13:30:27","slug":"soil-liquefaction-analysis","status":"publish","type":"post","link":"https:\/\/www.geostru.eu\/ro\/blog\/2014\/11\/21\/soil-liquefaction-analysis\/","title":{"rendered":"Soil liquefaction"},"content":{"rendered":"

Soil liquefaction<\/b> describes a phenomenon whereby a saturate\"soil<\/a>d or partially saturated soil substantially loses strength and\u00a0stiffness in response to an applied stress, usually earthquake shaking or other sudden change in stress condition, causing it to behave like a liquid.
\nThe phenomenon is most often observed in saturated, loose (low density or uncompacted), sandy soils. This is because a loose sand has a tendency to compress when a load is applied; dense sands by contrast tend to expand in volume or ‘dilate’. If the soil is saturated by water, a condition that often exists when the soil is below the ground water table or sea level, then water fills the gaps between soil grains (‘pore spaces’). In response to the soil compressing, this water increases in pressure and attempts to flow out from the soil to zones of low pressure (usually upward towards the ground surface). However, if the loading is rapidly applied and large enough, or is repeated many times (e.g. earthquake shaking, storm wave loading) such that it does not flow out in time before the next cycle of load is applied, the water pressures may build to an extent where they exceed the contact stresses between the grains of soil that keep them in contact with each other. These contacts between grains are the means by which the weight from buildings and overlying soil layers are transferred from the ground surface to layers of soil or rock at greater depths. This loss of soil structure causes it to lose all of its strength (the ability to transfer shear stress) and it may be observed to flow like a liquid (hence ‘liquefaction’).
\nLiquefied soil also exerts higher pressure on retaining walls,which can cause them to tilt or slide. This movement can cause settlement of the retained soil and destruction of structures on the ground surface.
\nIncreased water pressure can also trigger landslides and cause the collapse of dams.<\/p>\n

The building codes in many developed countries require engineers to consider the effects of soil liquefaction in the design of new buildings and infrastructure such as bridges, embankment dams and retaining structures.<\/p>\n

In this matter, Liquiter <\/a>is a software that might come in very handy.<\/p>\n

\n","protected":false},"excerpt":{"rendered":"

Soil liquefaction describes a phenomenon whereby a saturated or partially saturated soil substantially loses strength and\u00a0stiffness in response to an applied stress, usually earthquake shaking or other sudden change in stress condition, causing it to behave like a liquid. The phenomenon is most often observed in saturated, loose (low density or uncompacted), sandy soils. This…<\/p>\n","protected":false},"author":12038,"featured_media":3878,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[80],"tags":[],"class_list":["post-3877","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-publicatii","category-80","description-off"],"yoast_head":"\nSoil liquefaction - GeoStru EU<\/title>\n<meta name=\"description\" content=\"soil liquefaction\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.geostru.eu\/ro\/blog\/2014\/11\/21\/soil-liquefaction-analysis\/\" \/>\n<meta property=\"og:locale\" content=\"ro_RO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Soil liquefaction\" \/>\n<meta property=\"og:description\" content=\"soil liquefaction\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.geostru.eu\/ro\/blog\/2014\/11\/21\/soil-liquefaction-analysis\/\" \/>\n<meta property=\"og:site_name\" content=\"GeoStru EU\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/GeoStruSoftware\/\" \/>\n<meta property=\"article:published_time\" content=\"2014-11-21T16:43:29+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2016-07-19T13:30:27+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.geostru.eu\/wp-content\/uploads\/2014\/09\/liquefaction_er.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1857\" \/>\n\t<meta property=\"og:image:height\" content=\"1393\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Angelo Alberto Stamile\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@geostru\" \/>\n<meta name=\"twitter:site\" content=\"@geostru\" \/>\n<meta name=\"twitter:label1\" content=\"Scris de\" \/>\n\t<meta name=\"twitter:data1\" content=\"Angelo Alberto Stamile\" \/>\n\t<meta name=\"twitter:label2\" content=\"Timp estimat pentru citire\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.geostru.eu\/ro\/blog\/2014\/11\/21\/soil-liquefaction-analysis\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.geostru.eu\/ro\/blog\/2014\/11\/21\/soil-liquefaction-analysis\/\"},\"author\":{\"name\":\"Angelo Alberto Stamile\",\"@id\":\"https:\/\/www.geostru.eu\/ro\/#\/schema\/person\/3462ca920be0422a7cef096a994a4bbe\"},\"headline\":\"Soil liquefaction\",\"datePublished\":\"2014-11-21T16:43:29+00:00\",\"dateModified\":\"2016-07-19T13:30:27+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.geostru.eu\/ro\/blog\/2014\/11\/21\/soil-liquefaction-analysis\/\"},\"wordCount\":370,\"publisher\":{\"@id\":\"https:\/\/www.geostru.eu\/ro\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.geostru.eu\/ro\/blog\/2014\/11\/21\/soil-liquefaction-analysis\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.geostru.eu\/wp-content\/uploads\/2014\/09\/liquefaction_er.jpg\",\"articleSection\":[\"Publica\u021bii\"],\"inLanguage\":\"ro-RO\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.geostru.eu\/ro\/blog\/2014\/11\/21\/soil-liquefaction-analysis\/\",\"url\":\"https:\/\/www.geostru.eu\/ro\/blog\/2014\/11\/21\/soil-liquefaction-analysis\/\",\"name\":\"Soil liquefaction - 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