{"id":1072,"date":"2026-03-23T03:16:49","date_gmt":"2026-03-23T03:16:49","guid":{"rendered":"https:\/\/www.geo-tester.com\/?post_type=method&#038;p=1072"},"modified":"2026-04-08T05:55:21","modified_gmt":"2026-04-08T05:55:21","slug":"wide-width-tensile-test","status":"publish","type":"method","link":"https:\/\/www.geo-tester.com\/cs\/method\/wide-width-tensile-test\/","title":{"rendered":"Zkou\u0161ka tahem na \u0161\u00ed\u0159ku"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Metoda \u0161irok\u00e9ho p\u00e1su p\u0159i zkou\u0161ce geotextili\u00ed v tahu<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Na str\u00e1nk\u00e1ch <strong>tahov\u00e1 zkou\u0161ka na \u0161\u00ed\u0159ku<\/strong> hraje z\u00e1sadn\u00ed roli p\u0159i hodnocen\u00ed mechanick\u00fdch vlastnost\u00ed geotextili\u00ed a geosyntetik pou\u017e\u00edvan\u00fdch v in\u017een\u00fdrsk\u00e9m stavitelstv\u00ed a infrastrukturn\u00edch projektech. Na rozd\u00edl od \u00fazkop\u00e1sov\u00fdch zkou\u0161ek <strong>metoda \u0161irok\u00fdch p\u00e1s\u016f<\/strong> pou\u017e\u00edv\u00e1 v\u00fdrazn\u011b v\u011bt\u0161\u00ed \u0161\u00ed\u0159ku vzorku, co\u017e minimalizuje bo\u010dn\u00ed smr\u0161\u0165ov\u00e1n\u00ed a l\u00e9pe odr\u00e1\u017e\u00ed skute\u010dn\u00e9 chov\u00e1n\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V typick\u00e9m <strong>zkou\u0161ka geotextili\u00ed v tahu<\/strong>, vzorek se upne po cel\u00e9 \u0161\u00ed\u0159ce a natahuje se konstantn\u00ed rychlost\u00ed a\u017e do prasknut\u00ed. Tento p\u0159\u00edstup zaji\u0161\u0165uje, \u017ee rozlo\u017een\u00ed nap\u011bt\u00ed z\u016fst\u00e1v\u00e1 rovnom\u011brn\u00e9, co\u017e poskytuje spolehliv\u011bj\u0161\u00ed \u00fadaje o pevnosti v tahu a deformaci.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kl\u00ed\u010dovou v\u00fdhodou tahov\u00e9 zkou\u0161ky v \u0161irok\u00e9m rozsahu je schopnost simulovat podm\u00ednky v ter\u00e9nu. Mnoho geotextili\u00ed - zejm\u00e9na netkan\u00fdch materi\u00e1l\u016f - vykazuje p\u0159i zat\u00ed\u017een\u00ed zna\u010dnou bo\u010dn\u00ed kontrakci. Zv\u011bt\u0161en\u00edm \u0161\u00ed\u0159ky vzorku tato metoda tyto \u00fa\u010dinky sni\u017euje a poskytuje v\u00fdsledky, kter\u00e9 se bl\u00ed\u017e\u00ed skute\u010dn\u00e9mu technick\u00e9mu proveden\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ISO 10319 pro zkou\u0161ku tahem na \u0161\u00ed\u0159ku<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Na str\u00e1nk\u00e1ch <strong>tahov\u00e1 zkou\u0161ka na \u0161\u00ed\u0159ku<\/strong> definovan\u00e9 v <strong>ISO 10319<\/strong> zav\u00e1d\u00ed standardizovanou metodiku pro stanoven\u00ed tahov\u00fdch vlastnost\u00ed geosyntetik. Tato norma plat\u00ed pro \u0161irokou \u0161k\u00e1lu materi\u00e1l\u016f, v\u010detn\u011b tkan\u00fdch a netkan\u00fdch geotextili\u00ed, geom\u0159\u00ed\u017e\u00ed a geokompozit\u016f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Podle normy ISO 10319:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0160\u00ed\u0159ka vzorku je v\u011bt\u0161\u00ed ne\u017e d\u00e9lka m\u011b\u0159idla<\/li>\n\n\n\n<li>Zkou\u0161ka se prov\u00e1d\u00ed p\u0159i konstantn\u00ed rychlosti k\u0159\u00ed\u017eov\u00e9 hlavy<\/li>\n\n\n\n<li>M\u011b\u0159en\u00ed zahrnuje tahovou s\u00edlu, prodlou\u017een\u00ed a tuhost.<\/li>\n\n\n\n<li>Tlak je obvykle kontrolov\u00e1n v r\u00e1mci <strong>(20 \u00b1 5)% za minutu<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">D\u016fle\u017eit\u00fdm prvkem t\u00e9to metody je pou\u017eit\u00ed extenzometr\u016f ke sledov\u00e1n\u00ed. <strong>prodlou\u017een\u00ed p\u0159i tahov\u00e9 zkou\u0161ce<\/strong> p\u0159esn\u011b. Norma specifikuje referen\u010dn\u00ed body na vzorku, kter\u00e9 zaji\u0161\u0165uj\u00ed p\u0159esn\u00e9 m\u011b\u0159en\u00ed deformace.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Pro\u010d je norma ISO 10319 d\u016fle\u017eit\u00e1:<\/strong><br>Poskytuje celosv\u011btov\u011b uzn\u00e1van\u00fd r\u00e1mec, kter\u00fd zaji\u0161\u0165uje opakovatelnost, srovnatelnost a technickou relevanci zkou\u0161ek, zejm\u00e9na pro n\u00e1vrhov\u00e9 aplikace, jako jsou vyztu\u017een\u00e9 zemn\u00ed konstrukce a n\u00e1spy.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM D4595 pro zkou\u0161ku tahu geotextili\u00ed<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Na str\u00e1nk\u00e1ch <strong>tahov\u00e1 zkou\u0161ka na \u0161\u00ed\u0159ku<\/strong> je tak\u00e9 standardizov\u00e1n pod <strong>ASTM D4595<\/strong>, kter\u00e1 se zam\u011b\u0159uje zejm\u00e9na na geotextilie. Tato metoda je \u0161iroce pou\u017e\u00edv\u00e1na v Severn\u00ed Americe a dopl\u0148uje normy ISO s podobn\u00fdmi principy.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kl\u00ed\u010dov\u00e9 body normy ASTM D4595:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Vhodn\u00e9 pro tkan\u00e9, netkan\u00e9 a pleten\u00e9 geotextilie.<\/li>\n\n\n\n<li>M\u011b\u0159en\u00ed pevnosti v tahu, prodlou\u017een\u00ed a modulu pru\u017enosti<\/li>\n\n\n\n<li>Zahrnuje v\u00fdpo\u010dty pro <strong>po\u010d\u00e1te\u010dn\u00ed modul, sekantn\u00ed modul a hou\u017eevnatost<\/strong><\/li>\n\n\n\n<li>Podporuje testov\u00e1n\u00ed za sucha i za mokra<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Norma ASTM D4595 zd\u016fraz\u0148uje, \u017ee zkou\u0161ky s \u00fazkou \u0161\u00ed\u0159kou (nap\u0159. zkou\u0161ky \u00fachopem) mohou podhodnotit tahov\u00e9 vlastnosti v d\u016fsledku vlivu okraj\u016f. Na str\u00e1nk\u00e1ch <strong>metoda \u0161irok\u00fdch p\u00e1s\u016f<\/strong> toto omezen\u00ed odstra\u0148uje a poskytuje reprezentativn\u011bj\u0161\u00ed \u00fadaje.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Technick\u00fd v\u00fdznam:<\/strong><br>V\u00fdsledky normy ASTM D4595 se \u010dasto pou\u017e\u00edvaj\u00ed v:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>N\u00e1vrh zpevn\u011bn\u00ed silnic a chodn\u00edk\u016f<\/li>\n\n\n\n<li>Syst\u00e9my op\u011brn\u00fdch zd\u00ed<\/li>\n\n\n\n<li>Projekty stabilizace svah\u016f<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Prodlou\u017een\u00ed p\u0159i zkou\u0161ce tahem a interpretace v\u00fdkonu<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Prodlou\u017een\u00ed p\u0159i tahov\u00e9 zkou\u0161ce<\/strong> je z\u00e1kladn\u00edm parametrem p\u0159i hodnocen\u00ed vlastnost\u00ed geotextilie. Vyjad\u0159uje, jak moc se materi\u00e1l m\u016f\u017ee rozt\u00e1hnout, ne\u017e dojde k jeho selh\u00e1n\u00ed, a p\u0159\u00edmo ovliv\u0148uje jeho chov\u00e1n\u00ed p\u0159i vyztu\u017eov\u00e1n\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V <strong>tahov\u00e1 zkou\u0161ka na \u0161\u00ed\u0159ku<\/strong>, m\u011b\u0159\u00ed se prodlou\u017een\u00ed spolu s tahovou silou, aby se vytvo\u0159ila \u00fapln\u00e1 <strong>k\u0159ivka s\u00edla-prodlou\u017een\u00ed<\/strong>. Tato k\u0159ivka poskytuje n\u011bkolik kl\u00ed\u010dov\u00fdch poznatk\u016f:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Po\u010d\u00e1te\u010dn\u00ed tuhost<\/strong>: Odolnost proti deformaci p\u0159i n\u00edzk\u00e9 deformaci<\/li>\n\n\n\n<li><strong>Maxim\u00e1ln\u00ed pevnost v tahu<\/strong>: \u0160pi\u010dkov\u00e9 zat\u00ed\u017een\u00ed p\u0159ed prasknut\u00edm<\/li>\n\n\n\n<li><strong>Deformace p\u0159i maxim\u00e1ln\u00ed s\u00edle<\/strong>: Ukazatel ta\u017enosti<\/li>\n\n\n\n<li><strong>Absorpce energie (hou\u017eevnatost)<\/strong>: Plocha pod k\u0159ivkou<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nap\u0159\u00edklad:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Materi\u00e1ly s n\u00edzk\u00fdm prodlou\u017een\u00edm<\/strong> (nap\u0159. tkan\u00e9 geotextilie) maj\u00ed vysokou tuhost a jsou vhodn\u00e9 pro nosn\u00e9 aplikace.<\/li>\n\n\n\n<li><strong>Materi\u00e1ly s vysok\u00fdm prodlou\u017een\u00edm<\/strong> (nap\u0159. netkan\u00e9 geotextilie) poskytuj\u00ed flexibilitu a jsou ide\u00e1ln\u00ed pro filtraci a separaci.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Pochopen\u00ed chov\u00e1n\u00ed p\u0159i prodlou\u017een\u00ed pom\u00e1h\u00e1 in\u017een\u00fdr\u016fm vybrat spr\u00e1vn\u00fd materi\u00e1l pro konkr\u00e9tn\u00ed geotechnick\u00e9 podm\u00ednky.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Zku\u0161ebn\u00ed za\u0159\u00edzen\u00ed pro zkou\u0161ku tahem na \u0161\u00ed\u0159ku<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159esn\u00e9 proveden\u00ed <strong>tahov\u00e1 zkou\u0161ka na \u0161\u00ed\u0159ku<\/strong> vy\u017eaduje <strong>stroj pro zkou\u0161en\u00ed v tahu s konstantn\u00ed rychlost\u00ed rozta\u017een\u00ed (CRE)<\/strong> s vysokou p\u0159esnost\u00ed a stabilitou.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na str\u00e1nk\u00e1ch <strong>Cell Instruments TST-01 Zkou\u0161e\u010dka pevnosti v tahu<\/strong> je pro tuto aplikaci vhodn\u00fd. Poskytuje:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Stabiln\u00ed \u0159\u00edzen\u00ed PLC s vizualizac\u00ed k\u0159ivek v re\u00e1ln\u00e9m \u010dase<\/strong><\/li>\n\n\n\n<li><strong>P\u0159esn\u00e1 regulace ot\u00e1\u010dek (1-500 mm\/min)<\/strong> pro dodr\u017eov\u00e1n\u00ed norem<\/li>\n\n\n\n<li><strong>Vysok\u00e1 p\u0159esnost posunu (\u00b10,01 mm)<\/strong> pro spolehliv\u00e9 m\u011b\u0159en\u00ed prodlou\u017een\u00ed<\/li>\n\n\n\n<li><strong>Flexibiln\u00ed konfigurace sv\u00edtidel<\/strong> pro vzorky s velkou \u0161\u00ed\u0159kou a vlastn\u00ed \u00fachyty<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Jeho robustn\u00ed konstrukce zaji\u0161\u0165uje opakovatelnost a dlouhodob\u00fd v\u00fdkon, tak\u017ee je ide\u00e1ln\u00ed pro laborato\u0159e, kter\u00e9 prov\u00e1d\u011bj\u00ed <strong>zkou\u0161ka geotextili\u00ed v tahu<\/strong> v souladu s <a href=\"https:\/\/www.iso.org\/standard\/82237.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">ISO 10319<\/a> a <a href=\"https:\/\/store.astm.org\/d4595_d4595m-24.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">ASTM D4595<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pro\u010d je d\u016fle\u017eit\u00e1 zkou\u0161ka tahem na \u0161\u00ed\u0159ku<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Na str\u00e1nk\u00e1ch <strong>tahov\u00e1 zkou\u0161ka na \u0161\u00ed\u0159ku<\/strong> poskytuje realisti\u010dt\u011bj\u0161\u00ed posouzen\u00ed chov\u00e1n\u00ed geotextilie ve srovn\u00e1n\u00ed s tradi\u010dn\u00edmi metodami \u00fazk\u00fdch p\u00e1s\u016f. Jej\u00ed v\u00fdznam lze shrnout takto:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Zlep\u0161en\u00e1 p\u0159esnost<\/strong>: Sni\u017euje efekt okraj\u016f a krku<\/li>\n\n\n\n<li><strong>Lep\u0161\u00ed korelace v ter\u00e9nu<\/strong>: Odr\u00e1\u017e\u00ed chov\u00e1n\u00ed materi\u00e1lu na m\u00edst\u011b<\/li>\n\n\n\n<li><strong>Komplexn\u00ed datov\u00fd v\u00fdstup<\/strong>: Zahrnuje pevnost, prodlou\u017een\u00ed a modul pru\u017enosti.<\/li>\n\n\n\n<li><strong>Standardizovan\u00e9 hodnocen\u00ed<\/strong>: Podporov\u00e1no normami ISO a ASTM<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00fdrobc\u016fm, dodavatel\u016fm a laborato\u0159\u00edm pro kontrolu kvality zaji\u0161\u0165uje pou\u017eit\u00ed zkou\u0161ky tahem v \u0161irok\u00e9m rozsahu spolehlivou charakterizaci materi\u00e1lu a shodu s mezin\u00e1rodn\u00edmi normami.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>\u0160iroko\u00fahl\u00e1 tahov\u00e1 zkou\u0161ka poskytuje p\u0159esnou metodu pro hodnocen\u00ed pevnosti v tahu a prodlou\u017een\u00ed geotextili\u00ed d\u00edky minimalizaci okrajov\u00fdch vliv\u016f a simulaci re\u00e1ln\u00fdch podm\u00ednek. Na z\u00e1klad\u011b norem ISO 10319 a ASTM D4595 m\u011b\u0159\u00ed chov\u00e1n\u00ed v z\u00e1vislosti na s\u00edle a prodlou\u017een\u00ed, tuhost a hou\u017eevnatost pomoc\u00ed vzork\u016f v cel\u00e9 \u0161\u00ed\u0159ce.<\/p>","protected":false},"featured_media":0,"parent":0,"template":"","meta":{"_acf_changed":true},"method-category":[],"class_list":["post-1072","method","type-method","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.geo-tester.com\/cs\/wp-json\/wp\/v2\/method\/1072","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.geo-tester.com\/cs\/wp-json\/wp\/v2\/method"}],"about":[{"href":"https:\/\/www.geo-tester.com\/cs\/wp-json\/wp\/v2\/types\/method"}],"wp:attachment":[{"href":"https:\/\/www.geo-tester.com\/cs\/wp-json\/wp\/v2\/media?parent=1072"}],"wp:term":[{"taxonomy":"method-category","embeddable":true,"href":"https:\/\/www.geo-tester.com\/cs\/wp-json\/wp\/v2\/method-category?post=1072"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}