{"id":5097,"date":"2026-01-27T08:33:10","date_gmt":"2026-01-27T08:33:10","guid":{"rendered":"https:\/\/eurohinca.com\/?p=5097"},"modified":"2026-01-27T08:39:43","modified_gmt":"2026-01-27T08:39:43","slug":"como-se-calculan-los-empujes-maximos-admisibles-en-funcion-del-material-de-la-tuberia-y-el-terreno","status":"publish","type":"post","link":"https:\/\/eurohinca.com\/en\/como-se-calculan-los-empujes-maximos-admisibles-en-funcion-del-material-de-la-tuberia-y-el-terreno\/","title":{"rendered":"\u00bfC\u00f3mo se calculan los empujes m\u00e1ximos admisibles en funci\u00f3n del material de la tuber\u00eda y el terreno?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"5097\" class=\"elementor elementor-5097\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d6327ef e-flex e-con-boxed e-con e-parent\" data-id=\"d6327ef\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0d3dfe2 elementor-widget elementor-widget-text-editor\" data-id=\"0d3dfe2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-start=\"106\" data-end=\"259\">In a <strong data-start=\"113\" data-end=\"194\"><a class=\"decorated-link\" href=\"https:\/\/eurohinca.com\/en\/pipe-jacking-2\/\" target=\"_new\" rel=\"noopener\" data-start=\"115\" data-end=\"192\">hinca de tuber\u00eda (microt\u00fanel)<\/a><\/strong>, el \u201cempuje m\u00e1ximo admisible\u201d se obtiene comparando dos cosas:<\/p><ol data-start=\"260\" data-end=\"472\"><li data-start=\"260\" data-end=\"339\"><p data-start=\"263\" data-end=\"339\">the <strong data-start=\"266\" data-end=\"294\">empuje necesario de obra<\/strong> (lo que \u201cpide\u201d el terreno y el trazado), y<\/p><\/li><li data-start=\"340\" data-end=\"472\"><p data-start=\"343\" data-end=\"472\">the <strong data-start=\"346\" data-end=\"363\">empuje l\u00edmite<\/strong> que pueden soportar con seguridad la <strong data-start=\"401\" data-end=\"421\">tuber\u00eda + juntas<\/strong>, el <strong data-start=\"426\" data-end=\"447\">sistema de empuje<\/strong> and the <strong data-start=\"453\" data-end=\"471\">attack shaft<\/strong>.<\/p><\/li><\/ol><h2 data-start=\"474\" data-end=\"529\">1) Empuje de dise\u00f1o (lo que necesitas para avanzar)<\/h2><p data-start=\"530\" data-end=\"862\">Como regla de partida, el empuje de dise\u00f1o se estima como:<br data-start=\"588\" data-end=\"591\" \/><strong data-start=\"591\" data-end=\"632\">Ed \u2248 F_frente + F_fricci\u00f3n + p\u00e9rdidas<\/strong> (curvatura, juntas, rozamientos locales). Esto se explica en <strong data-start=\"694\" data-end=\"861\"><a class=\"decorated-link\" href=\"https:\/\/eurohinca.com\/en\/como-dimensionar-los-pozos-de-ataque-y-recepcion\/\" target=\"_new\" rel=\"noopener\" data-start=\"696\" data-end=\"859\">C\u00f3mo dimensionar los pozos de ataque y recepci\u00f3n: empuje admisible, izado y log\u00edstica<\/a><\/strong>.<\/p><ul data-start=\"864\" data-end=\"1416\"><li data-start=\"864\" data-end=\"1022\"><p data-start=\"866\" data-end=\"1022\"><strong data-start=\"866\" data-end=\"879\">F_frente:<\/strong> resistencia\/\u201cpresi\u00f3n de excavaci\u00f3n\u201d en el frente \u00d7 \u00e1rea excavada (y, si aplica, componente hidr\u00e1ulica por nivel fre\u00e1tico y presi\u00f3n de agua).<\/p><\/li><li data-start=\"1023\" data-end=\"1309\"><p data-start=\"1025\" data-end=\"1309\"><strong data-start=\"1025\" data-end=\"1040\">F_fricci\u00f3n:<\/strong> fricci\u00f3n tubo\u2013terreno a lo largo del tramo hincado. Una forma pr\u00e1ctica es:<br data-start=\"1115\" data-end=\"1118\" \/><strong data-start=\"1120\" data-end=\"1156\">F_fricci\u00f3n \u2248 \u03c4 \u00d7 (\u03c0 \u00d7 D_ext \u00d7 L)<\/strong><br data-start=\"1156\" data-end=\"1159\" \/>donde <strong data-start=\"1167\" data-end=\"1172\">\u03c4<\/strong> es la fricci\u00f3n perimetral unitaria (muy sensible a terreno y lubricaci\u00f3n), <strong data-start=\"1248\" data-end=\"1257\">D_ext<\/strong> el di\u00e1metro exterior y <strong data-start=\"1281\" data-end=\"1286\">L<\/strong> la longitud hincada.<\/p><\/li><li data-start=\"1310\" data-end=\"1416\"><p data-start=\"1312\" data-end=\"1416\"><strong data-start=\"1312\" data-end=\"1325\">P\u00e9rdidas:<\/strong> aumentan con <strong data-start=\"1339\" data-end=\"1352\">curvatura<\/strong>, desviaciones, sellos, arranques\/paradas y rozamientos locales.<\/p><\/li><\/ul><p data-start=\"1418\" data-end=\"1970\"><strong data-start=\"1418\" data-end=\"1437\">Clave pr\u00e1ctica:<\/strong> la fricci\u00f3n suele ser el t\u00e9rmino dominante, y se reduce con <strong data-start=\"1498\" data-end=\"1535\">lubricaci\u00f3n (bentonita\/pol\u00edmeros)<\/strong>, ver <strong data-start=\"1541\" data-end=\"1695\"><a class=\"decorated-link\" href=\"https:\/\/eurohinca.com\/en\/which-tools-and-machines-are-key-in-pipe-ramming\/\" target=\"_new\" rel=\"noopener\" data-start=\"1543\" data-end=\"1693\">Qu\u00e9 herramientas y m\u00e1quinas son clave en la hinca de tuber\u00eda<\/a><\/strong>, y con una estrategia de control de geometr\u00eda y operaci\u00f3n (si no, sube el riesgo de bloqueo), ver <strong data-start=\"1794\" data-end=\"1969\"><a class=\"decorated-link\" href=\"https:\/\/eurohinca.com\/en\/que-riesgos-geotecnicos-son-mas-habituales-en-microtunelacion-y-como-se-mitigan-en-obra\/\" target=\"_new\" rel=\"noopener\" data-start=\"1796\" data-end=\"1967\">Riesgos geot\u00e9cnicos en microtunelaci\u00f3n y su mitigaci\u00f3n<\/a><\/strong>.<\/p><h2 data-start=\"1972\" data-end=\"2028\">2) Empuje m\u00e1ximo admisible (lo que NO debes superar)<\/h2><p data-start=\"2029\" data-end=\"2100\">El empuje m\u00e1ximo admisible se toma como el <strong data-start=\"2072\" data-end=\"2082\">m\u00ednimo<\/strong> de estos l\u00edmites:<\/p><ul data-start=\"2102\" data-end=\"3636\"><li data-start=\"2102\" data-end=\"2680\"><p data-start=\"2104\" data-end=\"2680\"><strong data-start=\"2104\" data-end=\"2169\">L\u00edmite estructural de la tuber\u00eda y, sobre todo, de sus juntas<\/strong> (habitualmente el criterio m\u00e1s \u201cdelicado\u201d).<br data-start=\"2213\" data-end=\"2216\" \/>Se verifica la compresi\u00f3n axial y el aplastamiento\/da\u00f1o en junta, con un enfoque tipo: <strong data-start=\"2305\" data-end=\"2332\">N_adm, tubo \u2248 \u03c3_adm \u00d7 A<\/strong> (tensi\u00f3n admisible del material \u00d7 \u00e1rea resistente), aplicando coeficientes y verificaciones de junta seg\u00fan el sistema de tuber\u00eda.<br data-start=\"2462\" data-end=\"2465\" \/>Como recordatorio de tipolog\u00edas, en hinca se usan con frecuencia <strong data-start=\"2532\" data-end=\"2605\">hormig\u00f3n armado, acero, polycrete\/resina de poli\u00e9ster y cer\u00e1mico\/gres<\/strong>, ver <strong data-start=\"2611\" data-end=\"2679\"><a class=\"decorated-link\" href=\"https:\/\/eurohinca.com\/en\/pipe-jacking-2\/\" target=\"_new\" rel=\"noopener\" data-start=\"2613\" data-end=\"2677\">Pipe jacking<\/a><\/strong>.<\/p><\/li><li data-start=\"2682\" data-end=\"3157\"><p data-start=\"2684\" data-end=\"3157\"><strong data-start=\"2684\" data-end=\"2776\">Capacidad del sistema de empuje (cilindros, marco) y de posibles estaciones intermedias.<\/strong><br data-start=\"2776\" data-end=\"2779\" \/>En tramos largos, las <strong data-start=\"2803\" data-end=\"2829\">intermediate stations<\/strong> permiten repartir esfuerzos y mantener el empuje por debajo del l\u00edmite del tubo\/junta, tal como se menciona en <strong data-start=\"2941\" data-end=\"3009\"><a class=\"decorated-link\" href=\"https:\/\/eurohinca.com\/en\/pipe-jacking-2\/\" target=\"_new\" rel=\"noopener\" data-start=\"2943\" data-end=\"3007\">Pipe jacking<\/a><\/strong> y en <strong data-start=\"3015\" data-end=\"3156\"><a class=\"decorated-link\" href=\"https:\/\/eurohinca.com\/en\/que-riesgos-geotecnicos-son-mas-habituales-en-microtunelacion-y-como-se-mitigan-en-obra\/\" target=\"_new\" rel=\"noopener\" data-start=\"3017\" data-end=\"3154\">Riesgos geot\u00e9cnicos\u2026<\/a><\/strong>.<\/p><\/li><li data-start=\"3159\" data-end=\"3636\"><p data-start=\"3161\" data-end=\"3636\"><strong data-start=\"3161\" data-end=\"3252\">Capacidad del pozo de ataque y su muro de reacci\u00f3n (estructura que \u201ccierra\u201d el empuje).<\/strong><br data-start=\"3252\" data-end=\"3255\" \/>Esto se dise\u00f1a\/valida en <strong data-start=\"3282\" data-end=\"3412\"><a class=\"decorated-link\" href=\"https:\/\/eurohinca.com\/en\/como-dimensionar-los-pozos-de-ataque-y-recepcion\/\" target=\"_new\" rel=\"noopener\" data-start=\"3284\" data-end=\"3410\">C\u00f3mo dimensionar los pozos de ataque y recepci\u00f3n<\/a><\/strong> y en <strong data-start=\"3418\" data-end=\"3635\"><a class=\"decorated-link\" href=\"https:\/\/eurohinca.com\/en\/que-requisitos-de-obra-civil-y-de-pozos-de-ataque-recepcion-exige-un-proyecto-de-hinca-de-tuberia\/\" target=\"_new\" rel=\"noopener\" data-start=\"3420\" data-end=\"3633\">Qu\u00e9 requisitos de obra civil y de pozos de ataque\/recepci\u00f3n exige un proyecto de hinca<\/a><\/strong>.<\/p><\/li><\/ul><h2 data-start=\"3638\" data-end=\"3691\">3) C\u00f3mo \u201centra\u201d el terreno en el empuje admisible<\/h2><p data-start=\"3692\" data-end=\"3819\">El terreno no cambia la resistencia del material de la tuber\u00eda, pero <strong data-start=\"3761\" data-end=\"3794\">s\u00ed cambia el empuje requerido<\/strong> (Ed) principalmente por:<\/p><ul data-start=\"3820\" data-end=\"4175\"><li data-start=\"3820\" data-end=\"3963\"><p data-start=\"3822\" data-end=\"3963\"><strong data-start=\"3822\" data-end=\"3836\">Fricci\u00f3n \u03c4<\/strong> (aumenta en terrenos abrasivos, heterog\u00e9neos, con mala lubricaci\u00f3n o geometr\u00edas exigentes; disminuye con buena lubricaci\u00f3n).<\/p><\/li><li data-start=\"3964\" data-end=\"4065\"><p data-start=\"3966\" data-end=\"4065\"><strong data-start=\"3966\" data-end=\"4002\">Nivel fre\u00e1tico y presi\u00f3n de agua<\/strong> (sube F_frente y complica la estabilidad si no se controla).<\/p><\/li><li data-start=\"4066\" data-end=\"4175\"><p data-start=\"4068\" data-end=\"4175\"><strong data-start=\"4068\" data-end=\"4096\">Curvatura y desviaciones<\/strong> (generan cargas laterales adicionales y pueden penalizar juntas y rozamiento).<\/p><\/li><\/ul><h2 data-start=\"4177\" data-end=\"4223\">4) Resultado: c\u00f3mo se decide la viabilidad<\/h2><p data-start=\"4224\" data-end=\"4613\">La condici\u00f3n de seguridad es: <strong data-start=\"4254\" data-end=\"4268\">Ed \u2264 E_adm<\/strong>, siendo <strong data-start=\"4277\" data-end=\"4286\">E_adm<\/strong> el m\u00ednimo de los l\u00edmites (tubo\/junta, equipo, pozo).<br data-start=\"4339\" data-end=\"4342\" \/>Si no se cumple, las palancas t\u00edpicas son: reducir longitud entre pozos, mejorar lubricaci\u00f3n, ajustar geometr\u00eda\/tolerancias, replantear m\u00e9todo\/equipo (ver <strong data-start=\"4497\" data-end=\"4575\"><a class=\"decorated-link\" href=\"https:\/\/eurohinca.com\/en\/choice-of-tunnel-boring-machine\/\" target=\"_new\" rel=\"noopener\" data-start=\"4499\" data-end=\"4573\">Elecci\u00f3n de tuneladora<\/a><\/strong>) o incorporar estaciones intermedias.<\/p><p data-start=\"4615\" data-end=\"4831\">Si necesitas que lo dejemos \u201ccerrado\u201d para pliego o RFQ (valores, hip\u00f3tesis y margen), lo m\u00e1s directo es hacerlo desde <strong data-start=\"4734\" data-end=\"4830\"><a class=\"decorated-link\" href=\"https:\/\/eurohinca.com\/en\/technical-assistance-and-engineering\/\" target=\"_new\" rel=\"noopener\" data-start=\"4736\" data-end=\"4828\">Technical assistance and engineering<\/a><\/strong>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>En una hinca de tuber\u00eda (microt\u00fanel), el \u201cempuje m\u00e1ximo admisible\u201d se obtiene comparando dos cosas: el empuje necesario de obra (lo que \u201cpide\u201d el terreno y el trazado), y el empuje l\u00edmite que pueden soportar con seguridad la tuber\u00eda + juntas, el sistema de empuje y el pozo de ataque. 1) Empuje de dise\u00f1o (lo [&hellip;]<\/p>\n","protected":false},"author":80,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[146],"tags":[],"class_list":["post-5097","post","type-post","status-publish","format-standard","hentry","category-preguntas-frecuentes"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>C\u00e1lculo de empujes en hinca de tuber\u00eda | Eurohinca<\/title>\n<meta name=\"description\" content=\"C\u00f3mo estimar el empuje m\u00e1ximo admisible seg\u00fan material de tuber\u00eda y terreno: fricci\u00f3n, presi\u00f3n de frente, p\u00e9rdidas, pozos y empujes intermedios.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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