{"id":714,"date":"2017-11-21T22:28:59","date_gmt":"2017-11-21T20:28:59","guid":{"rendered":"http:\/\/www.florinbejan.ce.tuiasi.ro\/?page_id=714"},"modified":"2019-11-12T15:01:17","modified_gmt":"2019-11-12T13:01:17","slug":"geologie-lucrarea-5","status":"publish","type":"page","link":"https:\/\/florinbejan.ce.tuiasi.ro\/?page_id=714","title":{"rendered":"Geologie &#8211; Lucrarea 5"},"content":{"rendered":"<h2>\u00ceNCERCAREA PE TEREN CU PLACA (PLT)<\/h2>\n<p>&nbsp;<\/p>\n<h4><a href=\"http:\/\/www.florinbejan.ce.tuiasi.ro\/wp-content\/uploads\/2019\/11\/L_5_2020.pdf\" target=\"_blank\" rel=\"noopener\">DOWNLOAD &gt;&gt;&gt; ACTIVITATE INDIVIDUAL\u0102<\/a><\/h4>\n<p>&nbsp;<\/p>\n<p style=\"text-align: justify;\">Construc\u021biile transmit terenului de fundare, prin\u00a0intermediul funda\u021biilor, presiuni ce determin\u0103 deformarea acestuia (tasarea). Prin \u00eencercarea cu placa se \u00eencearc\u0103 simularea situa\u021biei reale la o scar\u0103 redus\u0103, folosind pl\u0103ci cu dimensiuni mai mici dec\u00e2t funda\u021bia.<\/p>\n<p style=\"text-align: justify;\">\u00cen func\u021bie de modul de aplicare al \u00eenc\u0103rc\u0103rii exist\u0103 dou\u0103 modalit\u0103\u021bi de realizare a acestei \u00eencerc\u0103ri:<\/p>\n<ol>\n<li style=\"text-align: justify;\">\u00cenc\u0103rcare aplicat\u0103 \u00een trepte succesive p\u00e2n\u0103 c\u00e2nd presiunea transmis\u0103 de plac\u0103 este de dou\u0103 sau de trei ori mai mare dec\u00e2t presiunea transmis\u0103 de viitoarea funda\u021bie. Fiecare treapt\u0103 de \u00eenc\u0103rcare este men\u021binut\u0103 p\u00e2n\u0103 la consolidarea p\u0103m\u00e2ntului. Prin aceast\u0103 procedur\u0103 se ob\u021bin caracteristicile de <strong>deformabilitate<\/strong> ale p\u0103m\u00e2ntului.<\/li>\n<li style=\"text-align: justify;\">\u00cencercare cu vitez\u0103 de tasare constant\u0103 &#8211; \u00eenc\u0103rcarea se aplic\u0103 continuu\u00a0cu o rat\u0103 de tasare de 25 min\/min. Se aplic\u0103 \u00een cazul amplasamentelor pe care \u00eenc\u0103rc\u0103rile se aplic\u0103 rapid. Aceast\u0103 procedur\u0103 permite ob\u021binerea <strong>capacit\u0103\u021bii portante<\/strong> a terenului de fundare.<\/li>\n<\/ol>\n<p style=\"text-align: center;\"><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/hBZhBijnVLY\" width=\"280\" height=\"158\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe>\u00a0 <iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/rPlOd2qUcCI\" width=\"280\" height=\"158\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<h4 style=\"text-align: justify;\">A. DETERMINAREA MODULULUI DE DEFORMA\u021aIE LINIAR\u0102 (STAS 8942\/3-90)<\/h4>\n<ol>\n<li style=\"text-align: justify;\">pozarea pl\u0103cii pe fundul s\u0103p\u0103turii;<\/li>\n<li style=\"text-align: justify;\">montarea cadrului de referin\u021b\u0103 \u0219i a dispozitivelor de m\u0103surare a tas\u0103rilor;<\/li>\n<li style=\"text-align: justify;\">pre\u00eenc\u0103rcarea pl\u0103cii cu o presiune aproximativ egal\u0103 cu sarcina geologic\u0103 la nivelul pl\u0103cii p\u00e2n\u0103 la consolidare;<\/li>\n<li style=\"text-align: justify;\">resetarea tuturor dispozitivelor de m\u0103surare a tas\u0103rilor;<\/li>\n<li style=\"text-align: justify;\">\u00eenc\u0103rcarea pl\u0103cii\u00a0cu prima trept\u0103 de\u00a0\u00eenc\u0103rcare\u00a0(\u00een func\u021bie de tipul de p\u0103m\u00e2nt se aleg presiuni de 25 &#8230; 100 kPa) \u0219i \u00eenregistrarea tas\u0103rilor la fiecare 15 minute p\u00e2n\u0103 la consolidare;<\/li>\n<li style=\"text-align: justify;\">se continu\u0103 procedura p\u00e2n\u0103 c\u00e2nd valoarea tas\u0103rii medii sub ultima treapt\u0103 de \u00eenc\u0103rcare este mai\u00a0mare cu 50% dec\u00e2t tasarea medie din treapta precedent\u0103.<\/li>\n<\/ol>\n<p>Valorile \u00eenregistrate se completeaz\u0103 \u00eentr-un raport de teren \u0219i se traseaz\u0103 un grafic centralizator ce cuprinde:<\/p>\n<ol>\n<li>varia\u021bia presiunii nete pe plac\u0103 \u00een func\u021bie de timp;<\/li>\n<li>varia\u021bia tas\u0103rii \u00een func\u021bie de timp (curba de consolidare);<\/li>\n<li>varia\u021bia tas\u0103rii \u00een func\u021bie de presiunea net\u0103 pe plac\u0103 (curba de compactare).<\/li>\n<\/ol>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-754 aligncenter\" src=\"http:\/\/www.florinbejan.ce.tuiasi.ro\/wp-content\/uploads\/2017\/11\/Fig_12_10-300x300.jpg\" alt=\"Fig_12_10\" width=\"300\" height=\"300\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00ceNCERCAREA PE TEREN CU PLACA (PLT) &nbsp; DOWNLOAD &gt;&gt;&gt; ACTIVITATE INDIVIDUAL\u0102 &nbsp; Construc\u021biile transmit terenului de fundare, prin\u00a0intermediul funda\u021biilor, presiuni ce determin\u0103 deformarea acestuia (tasarea). Prin \u00eencercarea cu placa se \u00eencearc\u0103 simularea situa\u021biei reale la o scar\u0103 redus\u0103, folosind pl\u0103ci cu dimensiuni mai mici dec\u00e2t funda\u021bia. \u00cen func\u021bie de modul de aplicare al \u00eenc\u0103rc\u0103rii exist\u0103<br \/><a href=\"https:\/\/florinbejan.ce.tuiasi.ro\/?page_id=714\" class=\"more\">Read more<\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"footnotes":""},"class_list":["post-714","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/florinbejan.ce.tuiasi.ro\/index.php?rest_route=\/wp\/v2\/pages\/714","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/florinbejan.ce.tuiasi.ro\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/florinbejan.ce.tuiasi.ro\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/florinbejan.ce.tuiasi.ro\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/florinbejan.ce.tuiasi.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=714"}],"version-history":[{"count":26,"href":"https:\/\/florinbejan.ce.tuiasi.ro\/index.php?rest_route=\/wp\/v2\/pages\/714\/revisions"}],"predecessor-version":[{"id":2290,"href":"https:\/\/florinbejan.ce.tuiasi.ro\/index.php?rest_route=\/wp\/v2\/pages\/714\/revisions\/2290"}],"wp:attachment":[{"href":"https:\/\/florinbejan.ce.tuiasi.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=714"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}