{"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\/sk\/method\/wide-width-tensile-test\/","title":{"rendered":"Sk\u00fa\u0161ka \u0165ahom na \u0161\u00edrku"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Met\u00f3da \u0161irok\u00e9ho p\u00e1su pri sk\u00fa\u0161ke geotext\u00edli\u00ed v \u0165ahu<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Str\u00e1nka <strong>\u0165ahov\u00e1 sk\u00fa\u0161ka na ve\u013ek\u00fa \u0161\u00edrku<\/strong> zohr\u00e1va rozhoduj\u00facu \u00falohu pri hodnoten\u00ed mechanick\u00fdch vlastnost\u00ed geotext\u00edli\u00ed a geosyntet\u00edk pou\u017e\u00edvan\u00fdch v projektoch v oblasti stavebn\u00edctva a infra\u0161trukt\u00fary. Na rozdiel od sk\u00fa\u0161ok \u00fazkych p\u00e1sov <strong>met\u00f3da \u0161irok\u00fdch p\u00e1sov<\/strong> pou\u017e\u00edva v\u00fdrazne v\u00e4\u010d\u0161iu \u0161\u00edrku vzorky, ktor\u00e1 minimalizuje bo\u010dn\u00fa kontrakciu (kr\u010dok) a lep\u0161ie odr\u00e1\u017ea skuto\u010dn\u00e9 spr\u00e1vanie.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V typickom <strong>sk\u00fa\u0161ka geotext\u00edli\u00ed v \u0165ahu<\/strong>, vzorka sa upne po celej \u0161\u00edrke a natiahne sa kon\u0161tantnou r\u00fdchlos\u0165ou a\u017e do roztrhnutia. Tento pr\u00edstup zabezpe\u010duje rovnomern\u00e9 rozlo\u017eenie nap\u00e4tia a poskytuje spo\u013eahlivej\u0161ie \u00fadaje o pevnosti v \u0165ahu a deform\u00e1cii.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hlavnou v\u00fdhodou \u0165ahovej sk\u00fa\u0161ky so \u0161irokou \u0161\u00edrkou je jej schopnos\u0165 simulova\u0165 podmienky v ter\u00e9ne. Mnoh\u00e9 geotext\u00edlie - najm\u00e4 netkan\u00e9 materi\u00e1ly - vykazuj\u00fa pri za\u0165a\u017een\u00ed v\u00fdrazn\u00fa bo\u010dn\u00fa kontrakciu. Zv\u00e4\u010d\u0161en\u00edm \u0161\u00edrky vzorky t\u00e1to met\u00f3da redukuje tak\u00e9to \u00fa\u010dinky a poskytuje v\u00fdsledky, ktor\u00e9 s\u00fa v s\u00falade so skuto\u010dn\u00fdmi technick\u00fdmi parametrami.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ISO 10319 pre sk\u00fa\u0161ku \u0165ahom na \u0161\u00edrku<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Str\u00e1nka <strong>\u0165ahov\u00e1 sk\u00fa\u0161ka na ve\u013ek\u00fa \u0161\u00edrku<\/strong> definovan\u00e9 v <strong>ISO 10319<\/strong> zav\u00e1dza \u0161tandardizovan\u00fa metodiku na stanovenie \u0165ahov\u00fdch vlastnost\u00ed geosyntetiky. T\u00e1to norma sa vz\u0165ahuje na \u0161irok\u00fa \u0161k\u00e1lu materi\u00e1lov vr\u00e1tane tkan\u00fdch a netkan\u00fdch geotext\u00edli\u00ed, geomre\u017e\u00ed a geokompozitov.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pod\u013ea normy ISO 10319:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0160\u00edrka vzorky je v\u00e4\u010d\u0161ia ako d\u013a\u017eka meradla<\/li>\n\n\n\n<li>Test sa vykon\u00e1va pri kon\u0161tantnej r\u00fdchlosti kr\u00ed\u017eovej hlavy<\/li>\n\n\n\n<li>Merania zah\u0155\u0148aj\u00fa \u0165ahov\u00fa silu, pred\u013a\u017eenie a tuhos\u0165<\/li>\n\n\n\n<li>Nap\u00e4tie sa zvy\u010dajne kontroluje v r\u00e1mci <strong>(20 \u00b1 5)% za min\u00fatu<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Rozhoduj\u00facim prvkom tejto met\u00f3dy je pou\u017eitie extenzometrov na sledovanie <strong>pred\u013a\u017eenie pri sk\u00fa\u0161ke \u0165ahom<\/strong> presne. Norma \u0161pecifikuje referen\u010dn\u00e9 body na vzorke na zabezpe\u010denie presn\u00e9ho merania deform\u00e1cie.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Pre\u010do je norma ISO 10319 d\u00f4le\u017eit\u00e1:<\/strong><br>Poskytuje celosvetovo uzn\u00e1van\u00fd r\u00e1mec, ktor\u00fd zabezpe\u010duje opakovate\u013enos\u0165, porovnate\u013enos\u0165 a technick\u00fa relevantnos\u0165 sk\u00fa\u0161ok, najm\u00e4 pre kon\u0161truk\u010dn\u00e9 aplik\u00e1cie, ako s\u00fa vystu\u017een\u00e9 zemn\u00e9 kon\u0161trukcie a n\u00e1sypy.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM D4595 pre sk\u00fa\u0161ku \u0165ahom geotext\u00edli\u00ed<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Str\u00e1nka <strong>\u0165ahov\u00e1 sk\u00fa\u0161ka na ve\u013ek\u00fa \u0161\u00edrku<\/strong> je tie\u017e \u0161tandardizovan\u00e1 pod <strong>ASTM D4595<\/strong>, ktor\u00e1 sa zameriava najm\u00e4 na geotext\u00edlie. T\u00e1to met\u00f3da sa \u0161iroko pou\u017e\u00edva v Severnej Amerike a dop\u013a\u0148a normy ISO s podobn\u00fdmi princ\u00edpmi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">K\u013e\u00fa\u010dov\u00e9 body normy ASTM D4595:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Vhodn\u00e9 pre tkan\u00e9, netkan\u00e9 a pleten\u00e9 geotext\u00edlie<\/li>\n\n\n\n<li>Meria pevnos\u0165 v \u0165ahu, pred\u013a\u017eenie a modul pru\u017enosti<\/li>\n\n\n\n<li>Zah\u0155\u0148a v\u00fdpo\u010dty pre <strong>po\u010diato\u010dn\u00fd modul, sekantn\u00fd modul a h\u00fa\u017eevnatos\u0165<\/strong><\/li>\n\n\n\n<li>Podporuje testovanie za sucha aj za mokra<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Norma ASTM D4595 zd\u00f4raz\u0148uje, \u017ee sk\u00fa\u0161ky s \u00fazkou \u0161\u00edrkou (napr. sk\u00fa\u0161ky uchopen\u00edm) m\u00f4\u017eu podhodnoti\u0165 \u0165ahov\u00e9 vlastnosti v d\u00f4sledku \u00fa\u010dinkov hr\u00e1n. Na str\u00e1nke . <strong>met\u00f3da \u0161irok\u00fdch p\u00e1sov<\/strong> odstra\u0148uje toto obmedzenie a poskytuje reprezentat\u00edvnej\u0161ie \u00fadaje.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Technick\u00fd v\u00fdznam:<\/strong><br>V\u00fdsledky z normy ASTM D4595 sa \u010dasto pou\u017e\u00edvaj\u00fa v:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>N\u00e1vrh v\u00fdstu\u017ee ciest a chodn\u00edkov<\/li>\n\n\n\n<li>Syst\u00e9my oporn\u00fdch m\u00farov<\/li>\n\n\n\n<li>Projekty stabiliz\u00e1cie svahov<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Pred\u013a\u017eenie pri sk\u00fa\u0161ke \u0165ahom a interpret\u00e1cia v\u00fdkonu<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Pred\u013a\u017eenie pri sk\u00fa\u0161ke \u0165ahom<\/strong> je z\u00e1kladn\u00fdm parametrom pri hodnoten\u00ed vlastnost\u00ed geotext\u00edlie. Vyjadruje, ako ve\u013emi sa materi\u00e1l dok\u00e1\u017ee natiahnu\u0165 pred zlyhan\u00edm, a priamo ovplyv\u0148uje jeho spr\u00e1vanie pri vystu\u017eovan\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V <strong>\u0165ahov\u00e1 sk\u00fa\u0161ka na ve\u013ek\u00fa \u0161\u00edrku<\/strong>, pred\u013a\u017eenie sa meria spolu s \u0165ahovou silou, aby sa vytvorila \u00fapln\u00e1 <strong>krivka sily a pred\u013a\u017eenia<\/strong>. T\u00e1to krivka poskytuje nieko\u013eko k\u013e\u00fa\u010dov\u00fdch poznatkov:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Po\u010diato\u010dn\u00e1 tuhos\u0165<\/strong>: Odolnos\u0165 vo\u010di deform\u00e1cii pri n\u00edzkej deform\u00e1cii<\/li>\n\n\n\n<li><strong>Maxim\u00e1lna pevnos\u0165 v \u0165ahu<\/strong>: \u0160pi\u010dkov\u00e9 za\u0165a\u017eenie pred prasknut\u00edm<\/li>\n\n\n\n<li><strong>Nap\u00e4tie pri maxim\u00e1lnej sile<\/strong>: Indik\u00e1tor \u0165a\u017enosti<\/li>\n\n\n\n<li><strong>Absorpcia energie (h\u00fa\u017eevnatos\u0165)<\/strong>: Plocha pod krivkou<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Napr\u00edklad:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Materi\u00e1ly s n\u00edzkym pred\u013a\u017een\u00edm<\/strong> (napr. tkan\u00e9 geotext\u00edlie) maj\u00fa vysok\u00fa tuhos\u0165 a s\u00fa vhodn\u00e9 na nosn\u00e9 aplik\u00e1cie<\/li>\n\n\n\n<li><strong>Materi\u00e1ly s vysok\u00fdm pred\u013a\u017een\u00edm<\/strong> (napr. netkan\u00e9 geotext\u00edlie) poskytuj\u00fa flexibilitu a s\u00fa ide\u00e1lne na filtr\u00e1ciu a separ\u00e1ciu<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Pochopenie spr\u00e1vania sa pri pred\u013a\u017een\u00ed pom\u00e1ha in\u017einierom vybra\u0165 spr\u00e1vny materi\u00e1l pre konkr\u00e9tne geotechnick\u00e9 podmienky.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Sk\u00fa\u0161obn\u00e9 zariadenie na \u0165ahov\u00fa sk\u00fa\u0161ku so \u0161irokou \u0161\u00edrkou<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Presn\u00e9 vykonanie <strong>\u0165ahov\u00e1 sk\u00fa\u0161ka na ve\u013ek\u00fa \u0161\u00edrku<\/strong> vy\u017eaduje <strong>stroj na sk\u00fa\u0161ku \u0165ahom s kon\u0161tantnou r\u00fdchlos\u0165ou natiahnutia (CRE)<\/strong> s vysokou presnos\u0165ou a stabilitou.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Str\u00e1nka <strong>Cell Instruments TST-01 Tester \u0165ahu<\/strong> je pre t\u00fato aplik\u00e1ciu vhodn\u00fd. Poskytuje:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Stabiln\u00e9 riadenie PLC s vizualiz\u00e1ciou kriviek v re\u00e1lnom \u010dase<\/strong><\/li>\n\n\n\n<li><strong>Presn\u00e1 regul\u00e1cia ot\u00e1\u010dok (1-500 mm\/min)<\/strong> na dodr\u017eiavanie noriem<\/li>\n\n\n\n<li><strong>Vysok\u00e1 presnos\u0165 posunu (\u00b10,01 mm)<\/strong> na spo\u013eahliv\u00e9 meranie pred\u013a\u017eenia<\/li>\n\n\n\n<li><strong>Flexibiln\u00e1 konfigur\u00e1cia svietidiel<\/strong> pre vzorky so \u0161irokou \u0161\u00edrkou a vlastn\u00e9 \u00fachyty<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Jeho robustn\u00e1 kon\u0161trukcia zaru\u010duje opakovate\u013enos\u0165 a dlhodob\u00fd v\u00fdkon, tak\u017ee je ide\u00e1lny pre laborat\u00f3ri\u00e1 vykon\u00e1vaj\u00face <strong>sk\u00fa\u0161ka geotext\u00edli\u00ed v \u0165ahu<\/strong> v s\u00falade 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\">Pre\u010do je d\u00f4le\u017eit\u00e1 \u0161irok\u00e1 \u0165ahov\u00e1 sk\u00fa\u0161ka<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Str\u00e1nka <strong>\u0165ahov\u00e1 sk\u00fa\u0161ka na ve\u013ek\u00fa \u0161\u00edrku<\/strong> poskytuje realistickej\u0161ie pos\u00fadenie spr\u00e1vania geotext\u00edlie v porovnan\u00ed s tradi\u010dn\u00fdmi met\u00f3dami \u00fazkych p\u00e1sov. Jej v\u00fdznam mo\u017eno zhrn\u00fa\u0165 takto:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Zv\u00fd\u0161en\u00e1 presnos\u0165<\/strong>: Zni\u017euje \u00fa\u010dinky hrany a krku<\/li>\n\n\n\n<li><strong>Lep\u0161ia korel\u00e1cia v ter\u00e9ne<\/strong>: Odr\u00e1\u017ea spr\u00e1vanie materi\u00e1lu na mieste<\/li>\n\n\n\n<li><strong>Komplexn\u00fd v\u00fdstup \u00fadajov<\/strong>: Zah\u0155\u0148a pevnos\u0165, pred\u013a\u017eenie a modul<\/li>\n\n\n\n<li><strong>\u0160tandardizovan\u00e9 hodnotenie<\/strong>: Podporovan\u00e9 r\u00e1mcami ISO a ASTM<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Pre v\u00fdrobcov, dod\u00e1vate\u013eov a laborat\u00f3ri\u00e1 na kontrolu kvality je pou\u017eitie sk\u00fa\u0161ky \u0165ahom na \u0161\u00edrku z\u00e1rukou spo\u013eahlivej charakteriz\u00e1cie materi\u00e1lu a s\u00faladu s medzin\u00e1rodn\u00fdmi normami.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Sk\u00fa\u0161ka \u0165ahom na \u0161\u00edrku poskytuje presn\u00fa met\u00f3du na hodnotenie pevnosti v \u0165ahu a pred\u013a\u017eenia geotext\u00edli\u00ed v\u010faka minimaliz\u00e1cii okrajov\u00fdch efektov a simul\u00e1cii re\u00e1lnych podmienok. Na z\u00e1klade noriem ISO 10319 a ASTM D4595 meria spr\u00e1vanie sa v z\u00e1vislosti od sily a pred\u013a\u017eenia, tuhos\u0165 a h\u00fa\u017eevnatos\u0165 pomocou vzoriek s celou \u0161\u00edrkou.<\/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\/sk\/wp-json\/wp\/v2\/method\/1072","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.geo-tester.com\/sk\/wp-json\/wp\/v2\/method"}],"about":[{"href":"https:\/\/www.geo-tester.com\/sk\/wp-json\/wp\/v2\/types\/method"}],"wp:attachment":[{"href":"https:\/\/www.geo-tester.com\/sk\/wp-json\/wp\/v2\/media?parent=1072"}],"wp:term":[{"taxonomy":"method-category","embeddable":true,"href":"https:\/\/www.geo-tester.com\/sk\/wp-json\/wp\/v2\/method-category?post=1072"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}