{"id":1183,"date":"2025-04-09T03:16:47","date_gmt":"2025-04-08T19:16:47","guid":{"rendered":"https:\/\/www.lianyigeosyn.com\/?p=1183"},"modified":"2025-04-09T14:56:01","modified_gmt":"2025-04-09T06:56:01","slug":"how-to-choose-geogrids-for-soft-soil-stabilization","status":"publish","type":"post","link":"https:\/\/www.lianyigeosyn.com\/pt\/how-to-choose-geogrids-for-soft-soil-stabilization\/","title":{"rendered":"Como escolher as geogrelhas para a estabiliza\u00e7\u00e3o de solos moles"},"content":{"rendered":"<p><strong>Como escolher as geogrelhas para a estabiliza\u00e7\u00e3o de solos moles<\/strong><br \/>\nA estabiliza\u00e7\u00e3o de solos moles exige geogrelhas que melhorem a distribui\u00e7\u00e3o da carga, reduzam o assentamento e aumentem a resist\u00eancia ao cisalhamento. Segue-se um guia estruturado para selecionar as geogrelhas ideais para este tipo de aplica\u00e7\u00f5es, apoiado por conhecimentos t\u00e9cnicos e pr\u00e1ticas industriais.<\/p>\n<hr \/>\n<h3><strong>1. Avaliar as carater\u00edsticas do solo e os requisitos do projeto<\/strong><\/h3>\n<ul>\n<li><strong>Tipo de solo<\/strong>: Os solos moles (por exemplo, argila, silte, solos org\u00e2nicos) exigem geogrelhas com elevada resist\u00eancia \u00e0 tra\u00e7\u00e3o e baixo alongamento para evitar a deforma\u00e7\u00e3o. As geogrelhas de fibra de vidro s\u00e3o ideais devido \u00e0 sua elevada resist\u00eancia \u00e0 tra\u00e7\u00e3o (&gt;80 kN\/m) e ao seu baixo alongamento (&lt;4%) .<\/li>\n<li><strong>Tamanho da abertura<\/strong>: Adaptar as dimens\u00f5es da abertura \u00e0 grada\u00e7\u00e3o do solo. Os solos grosseiros requerem aberturas maiores (por exemplo, 25,4\u00d725,4 mm) para um interbloqueio eficaz, enquanto os solos finos beneficiam de aberturas mais pequenas combinadas com geot\u00eaxteis n\u00e3o tecidos para filtragem.<\/li>\n<li><strong>Condi\u00e7\u00f5es de carga<\/strong>: Para cargas din\u00e2micas (por exemplo, auto-estradas), utilizar geogrelhas biaxiais (por exemplo, EnkaGrid MAX) para distribuir as tens\u00f5es multidireccionais. Para cargas est\u00e1ticas (por exemplo, aterros), as geogrelhas uniaxiais (por exemplo, EnkaGrid PRO) proporcionam um refor\u00e7o direcionado.<\/li>\n<\/ul>\n<hr \/>\n<h3><strong>2. Sele\u00e7\u00e3o de materiais com base nas necessidades ambientais e mec\u00e2nicas<\/strong><\/h3>\n<ul>\n<li><strong>Geogrelhas de poli\u00e9ster (PET)<\/strong>:\n<figure id=\"attachment_1124\" aria-describedby=\"caption-attachment-1124\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-1124\" title=\"geogrelha de poli\u00e9ster 60 30\" src=\"https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2024\/06\/polyester-geogrid-60-30-300x300.jpg\" alt=\"polyester geogrid 60 30\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2024\/06\/polyester-geogrid-60-30-300x300.jpg 300w, https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2024\/06\/polyester-geogrid-60-30-1024x1024.jpg 1024w, https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2024\/06\/polyester-geogrid-60-30-150x150.jpg 150w, https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2024\/06\/polyester-geogrid-60-30-768x768.jpg 768w, https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2024\/06\/polyester-geogrid-60-30-12x12.jpg 12w, https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2024\/06\/polyester-geogrid-60-30.jpg 1280w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-1124\" class=\"wp-caption-text\">geogrelha de poli\u00e9ster 60 30<\/figcaption><\/figure>\n<ul>\n<li><strong>Vantagens<\/strong>: Elevada resist\u00eancia \u00e0 flu\u00eancia, adequada para cargas de longa dura\u00e7\u00e3o.<\/li>\n<li><strong>Aplica\u00e7\u00f5es<\/strong>: Muros de conten\u00e7\u00e3o, pilares de pontes.<\/li>\n<li><strong>Revestimento<\/strong>: O revestimento em PVC aumenta a resist\u00eancia qu\u00edmica e a durabilidade em ambientes \u00e1cidos\/alcalinos.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Geogrelhas de polipropileno (PP)<\/strong>:\n<figure id=\"attachment_1137\" aria-describedby=\"caption-attachment-1137\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-1137\" title=\"banco de imagens 10\" src=\"https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2025\/02\/photobank-10-300x300.jpg\" alt=\"photobank 10\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2025\/02\/photobank-10-300x300.jpg 300w, https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2025\/02\/photobank-10-150x150.jpg 150w, https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2025\/02\/photobank-10-12x12.jpg 12w, https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2025\/02\/photobank-10.jpg 733w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-1137\" class=\"wp-caption-text\">Geogrelha biaxial PP<\/figcaption><\/figure>\n<ul>\n<li><strong>Vantagens<\/strong>: Econ\u00f3mica, resistente aos raios UV.<\/li>\n<li><strong>Aplica\u00e7\u00f5es<\/strong>: Estruturas tempor\u00e1rias, controlo da eros\u00e3o .<\/li>\n<\/ul>\n<\/li>\n<li><strong>Geogrelhas de fibra de vidro<\/strong>:\n<figure id=\"attachment_548\" aria-describedby=\"caption-attachment-548\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-548\" title=\"Servi\u00e7o p\u00f3s-venda\" src=\"https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2023\/11\/photobank-24-300x225.jpg\" alt=\"After-sales Service\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2023\/11\/photobank-24-300x225.jpg 300w, https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2023\/11\/photobank-24-1024x768.jpg 1024w, https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2023\/11\/photobank-24-768x576.jpg 768w, https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2023\/11\/photobank-24.jpg 1280w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-548\" class=\"wp-caption-text\">instala\u00e7\u00e3o de geogrelhas de fibra de vidro<\/figcaption><\/figure>\n<ul>\n<li><strong>Vantagens<\/strong>: Resist\u00eancia excecional \u00e0 tra\u00e7\u00e3o (at\u00e9 200 kN\/m), alongamento m\u00ednimo.<\/li>\n<li><strong>Aplica\u00e7\u00f5es<\/strong>: Refor\u00e7o de pavimentos, sub-base de solos moles.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Geogrelhas compostas<\/strong>:\n<figure id=\"attachment_1107\" aria-describedby=\"caption-attachment-1107\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-1107\" title=\"Vantagens do comp\u00f3sito de geogrelha biaxial de Feicheng Lianyi\" src=\"https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2025\/01\/Soil-Rinforcement-Stabilization-02-300x169.jpg\" alt=\"Advantages of Feicheng Lianyi\u2019s Biaxial Geogrid Composite\" width=\"300\" height=\"169\" srcset=\"https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2025\/01\/Soil-Rinforcement-Stabilization-02-300x169.jpg 300w, https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2025\/01\/Soil-Rinforcement-Stabilization-02-1024x576.jpg 1024w, https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2025\/01\/Soil-Rinforcement-Stabilization-02-768x432.jpg 768w, https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2025\/01\/Soil-Rinforcement-Stabilization-02-18x10.jpg 18w, https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2025\/01\/Soil-Rinforcement-Stabilization-02.jpg 1200w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-1107\" class=\"wp-caption-text\">Instala\u00e7\u00e3o de comp\u00f3sito de geogrelha biaxial<\/figcaption><\/figure>\n<ul>\n<li><strong>Exemplos<\/strong>: EnkaGrid MAX C (combina geogrelha com geot\u00eaxtil n\u00e3o tecido).<\/li>\n<li><strong>Vantagens<\/strong>: Dupla fun\u00e7\u00e3o de refor\u00e7o e filtragem, ideal para solos moles saturados de \u00e1gua.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h3><strong>3. Considera\u00e7\u00f5es e normas de conce\u00e7\u00e3o<\/strong><\/h3>\n<ul>\n<li><strong>M\u00e9todos de conce\u00e7\u00e3o<\/strong>:\n<ul>\n<li>Utilizar o\u00a0<strong>M\u00e9todo de Giroud-Han<\/strong>\u00a0ou\u00a0<strong>Modelo Leng-Gabr<\/strong> para calcular a resist\u00eancia \u00e0 tra\u00e7\u00e3o necess\u00e1ria e a coloca\u00e7\u00e3o das camadas .<\/li>\n<li>Para as estradas, integrar um modelo de 4 camadas (asfalto, base, sub-base, subleito) para otimizar a distribui\u00e7\u00e3o da carga.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Par\u00e2metros-chave<\/strong>:\n<ul>\n<li><strong>Resist\u00eancia \u00e0 tra\u00e7\u00e3o<\/strong>: Assegurar-se de que a resist\u00eancia da geogrelha excede as for\u00e7as horizontais calculadas a partir do peso pr\u00f3prio, das cargas das rodas e dos efeitos da membrana.<\/li>\n<li><strong>Resist\u00eancia da jun\u00e7\u00e3o<\/strong>: Essencial para as geogrelhas extrudidas\/soldadas (por exemplo, a geogrelha Biaxial de Lianyi) para evitar a separa\u00e7\u00e3o das nervuras durante a instala\u00e7\u00e3o.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Certifica\u00e7\u00f5es<\/strong>: Verificar a conformidade com as normas ASTM D6637 (ensaios de tra\u00e7\u00e3o) e ISO 10319 (ensaios de tra\u00e7\u00e3o de grande largura).<\/li>\n<\/ul>\n<hr \/>\n<h3><strong>4. Factores ambientais e de durabilidade<\/strong><\/h3>\n<ul>\n<li><strong>Resist\u00eancia qu\u00edmica<\/strong>:\n<ul>\n<li>As geogrelhas revestidas de PEAD ou PVC resistem \u00e0 corros\u00e3o em solos \u00e1cidos\/alcalinos .<\/li>\n<\/ul>\n<\/li>\n<li><strong>Resist\u00eancia aos raios UV<\/strong>:\n<ul>\n<li>As geogrelhas de polipropileno ou de poli\u00e9ster estabilizadas aos raios UV s\u00e3o essenciais para as aplica\u00e7\u00f5es expostas (por exemplo, estabiliza\u00e7\u00e3o de taludes).<\/li>\n<\/ul>\n<\/li>\n<li><strong>Toler\u00e2ncia de temperatura<\/strong>:\n<ul>\n<li>As geogrelhas de fibra de vidro suportam temperaturas extremas (-100\u00b0C a 280\u00b0C), sendo adequadas para regi\u00f5es com flutua\u00e7\u00f5es t\u00e9rmicas.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h3><strong>5. Estudos de casos e boas pr\u00e1ticas<\/strong><\/h3>\n<ul>\n<li><strong>Aterros em solos moles<\/strong>:\n<ul>\n<li>As geogrelhas de fibra de vidro reduziram o assentamento em 40% num projeto de autoestrada, distribuindo uniformemente as tens\u00f5es .<\/li>\n<\/ul>\n<\/li>\n<li><strong>Estabiliza\u00e7\u00e3o da base da estrada<\/strong>:\n<ul>\n<li>As geogrelhas biaxiais (por exemplo, Lianyi BX) melhoraram os valores CBR do subleito em 50% em zonas propensas a liquefa\u00e7\u00e3o .<\/li>\n<\/ul>\n<\/li>\n<li><strong>Refor\u00e7o de taludes<\/strong>:\n<ul>\n<li>As geogrelhas comp\u00f3sitas com camadas de n\u00e3o-tecido (por exemplo, Lianyi BXC30-150) evitaram a eros\u00e3o e refor\u00e7aram o crescimento da vegeta\u00e7\u00e3o em projectos de margens de rios.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h3><strong>6. Dicas de fornecedor e instala\u00e7\u00e3o<\/strong><\/h3>\n<ul>\n<li><strong>Crit\u00e9rios do fornecedor<\/strong>:\n<ul>\n<li>Dar prioridade aos fabricantes com certifica\u00e7\u00e3o ISO 9001 e refer\u00eancias de projectos.<\/li>\n<li>Pedir amostras para testes de compatibilidade do solo no local .<\/li>\n<\/ul>\n<\/li>\n<li><strong>Diretrizes de instala\u00e7\u00e3o<\/strong>:\n<ul>\n<li>Assegurar uma sobreposi\u00e7\u00e3o adequada (30-50 cm) e um comprimento de ancoragem para resistir \u00e0s for\u00e7as de arrancamento .<\/li>\n<li>Utilizar m\u00e1quinas ligeiras em solos moles para evitar danificar a geogrelha durante a coloca\u00e7\u00e3o .<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Segue-se uma an\u00e1lise pormenorizada das necessidades de refor\u00e7o de cada camada de uma estrutura de pavimento (asfalto, base, sub-base e subleito), juntamente com solu\u00e7\u00f5es personalizadas de geogrelhas:<\/p>\n<hr \/>\n<h3><strong>1. Camada de asfalto (camada de superf\u00edcie)<\/strong><\/h3>\n<p><strong>Fun\u00e7\u00e3o principal<\/strong>:<br \/>\nResiste diretamente \u00e0s cargas do tr\u00e1fego (pneus, varia\u00e7\u00f5es de temperatura) e evita defeitos na superf\u00edcie, como fissuras e sulcos.<\/p>\n<p><strong>Necessidades de refor\u00e7o<\/strong>:<\/p>\n<ul>\n<li><strong>Atenua\u00e7\u00e3o de fissuras<\/strong>:\n<ul>\n<li><strong>Fissuras de reflex\u00e3o<\/strong>: As geogrelhas devem impedir a propaga\u00e7\u00e3o de fissuras para cima a partir das camadas subjacentes.<\/li>\n<li><strong>Fratura t\u00e9rmica<\/strong>: A estabilidade a altas temperaturas \u00e9 fundamental para resistir \u00e0 expans\u00e3o\/contra\u00e7\u00e3o t\u00e9rmica.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Resist\u00eancia ao cio<\/strong>: Distribuir as cargas das rodas para reduzir a deforma\u00e7\u00e3o permanente.<\/li>\n<\/ul>\n<p><strong>Geogrelhas recomendadas<\/strong>:<\/p>\n<ul>\n<li><strong>Geogrelhas de fibra de vidro<\/strong>\u00a0(por exemplo,\u00a0<strong>Lianyi FG100<\/strong>):\n<figure id=\"attachment_560\" aria-describedby=\"caption-attachment-560\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-560\" title=\"Geogrelha de fibra de vidro\" src=\"https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2024\/05\/\u73bb\u7ea4\u683c\u6805-300x188.jpg\" alt=\"Fiberglass Geogrid\" width=\"300\" height=\"188\" srcset=\"https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2024\/05\/\u73bb\u7ea4\u683c\u6805-300x188.jpg 300w, https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2024\/05\/\u73bb\u7ea4\u683c\u6805.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-560\" class=\"wp-caption-text\">Geogrelha de fibra de vidro 100-100kN\/m<\/figcaption><\/figure>\n<ul>\n<li>Elevada resist\u00eancia \u00e0 tra\u00e7\u00e3o (80-150 kN\/m) e baixo alongamento (&lt;4%) para limitar a propaga\u00e7\u00e3o de fissuras.<\/li>\n<li>Revestimentos compat\u00edveis com o betume (por exemplo, asfalto modificado com pol\u00edmeros) para uma forte liga\u00e7\u00e3o entre camadas.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Geogrelhas compostas<\/strong> ( lianyi GPM50):\n<div class=\"mceTemp\"><\/div>\n<figure id=\"attachment_1094\" aria-describedby=\"caption-attachment-1094\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-1094\" title=\"Vantagens do comp\u00f3sito de geogrelha biaxial de Feicheng Lianyi\" src=\"https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2024\/12\/76641ac6155c8fb0f8146de158245b7b-300x225.jpg\" alt=\"Advantages of Feicheng Lianyi\u2019s Biaxial Geogrid Composite\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2024\/12\/76641ac6155c8fb0f8146de158245b7b-300x225.jpg 300w, https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2024\/12\/76641ac6155c8fb0f8146de158245b7b-1024x768.jpg 1024w, https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2024\/12\/76641ac6155c8fb0f8146de158245b7b-768x576.jpg 768w, https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2024\/12\/76641ac6155c8fb0f8146de158245b7b-16x12.jpg 16w, https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2024\/12\/76641ac6155c8fb0f8146de158245b7b.jpg 1280w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-1094\" class=\"wp-caption-text\">Comp\u00f3sito de geogrelha de fibra de vidro<\/figcaption><\/figure>\n<ul>\n<li>Combine fibra de vidro com geot\u00eaxteis n\u00e3o tecidos para supress\u00e3o de fissuras e impermeabiliza\u00e7\u00e3o.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>Conselhos de instala\u00e7\u00e3o<\/strong>:<\/p>\n<ul>\n<li>Colocar a geogrelha entre as camadas de asfalto (por exemplo, aplica\u00e7\u00f5es de sobreposi\u00e7\u00e3o).<\/li>\n<li>Assegurar a aplica\u00e7\u00e3o correta da camada de ader\u00eancia para garantir a ader\u00eancia.<\/li>\n<\/ul>\n<hr \/>\n<h3><strong>2. Curso de base<\/strong><\/h3>\n<p><strong>Fun\u00e7\u00e3o principal<\/strong>:<br \/>\nDistribuir as cargas da camada de asfalto para a sub-base, evitando falhas de cisalhamento e espalhamento lateral.<\/p>\n<p><strong>Necessidades de refor\u00e7o<\/strong>:<\/p>\n<ul>\n<li><strong>Distribui\u00e7\u00e3o da carga<\/strong>: Refor\u00e7o multidirecional para distribuir as tens\u00f5es verticais.<\/li>\n<li><strong>Confinamento lateral<\/strong>: Evitar a migra\u00e7\u00e3o do agregado sob cargas repetidas.<\/li>\n<\/ul>\n<p><strong>Geogrelhas recomendadas<\/strong>:<\/p>\n<ul>\n<li><strong>Geogrelhas biaxiais<\/strong>\u00a0(por exemplo,\u00a0<strong>Lianyi PP BX <\/strong><strong>Geogrelhas e geogrelha biaxial de poli\u00e9ster<\/strong>):\n<ul>\n<li>O tamanho da abertura (25-40 mm) corresponde \u00e0 grada\u00e7\u00e3o do agregado para um interbloqueio \u00f3timo.<\/li>\n<li>Elevada resist\u00eancia da jun\u00e7\u00e3o (&gt;90% de resist\u00eancia da nervura) para resistir a danos na instala\u00e7\u00e3o.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Geogrelhas triaxiais<\/strong>\u00a0(por exemplo,\u00a0<strong>Lianyi TriAx<\/strong>):\n<ul>\n<li>As aberturas hexagonais melhoram a distribui\u00e7\u00e3o multidirecional da carga, reduzindo a espessura do agregado em 20-30%.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>Considera\u00e7\u00f5es sobre a conce\u00e7\u00e3o<\/strong>:<\/p>\n<ul>\n<li>Utiliza\u00e7\u00e3o\u00a0<strong>AASHTO MEPDG<\/strong>\u00a0ou\u00a0<strong>Conce\u00e7\u00e3o mecanicista-emp\u00edrica<\/strong>\u00a0para calcular o melhoramento do m\u00f3dulo necess\u00e1rio.<\/li>\n<\/ul>\n<hr \/>\n<h3><strong>3. Curso de sub-base<\/strong><\/h3>\n<p><strong>Fun\u00e7\u00e3o principal<\/strong>:<br \/>\nProporcionam um apoio adicional \u00e0 camada de base e evitam a contamina\u00e7\u00e3o do subsolo.<\/p>\n<p><strong>Necessidades de refor\u00e7o<\/strong>:<\/p>\n<ul>\n<li><strong>Separa\u00e7\u00e3o<\/strong>: Evitar a mistura do solo de sub-base com os agregados da base.<\/li>\n<li><strong>Drenagem<\/strong>: Deixar a \u00e1gua correr livremente para evitar a satura\u00e7\u00e3o.<\/li>\n<\/ul>\n<p><strong>Solu\u00e7\u00f5es recomendadas<\/strong>:<\/p>\n<ul>\n<li><strong>Geogrelha composta-Geot\u00eaxteis<\/strong>\u00a0(por exemplo,\u00a0<strong>Geogrelha LIANYI + Geot\u00eaxtil n\u00e3o tecido<\/strong>):\n<ul>\n<li>A geogrelha fornece refor\u00e7o estrutural, enquanto o geot\u00eaxtil filtra as part\u00edculas finas.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Geot\u00eaxteis tecidos<\/strong>: Para projectos que d\u00e3o prioridade \u00e0 separa\u00e7\u00e3o em detrimento do refor\u00e7o.<\/li>\n<\/ul>\n<p><strong>Aplica\u00e7\u00f5es<\/strong>:<\/p>\n<ul>\n<li>Sub-bases fracas (CBR &lt;3%) ou zonas propensas ao gelo.<\/li>\n<\/ul>\n<hr \/>\n<h3><strong>4. Sub-base (solo natural)<\/strong><\/h3>\n<p><strong>Fun\u00e7\u00e3o principal<\/strong>:<br \/>\nServem de base a todas as camadas superiores; devem resistir \u00e0 deforma\u00e7\u00e3o sob carga.<\/p>\n<p><strong>Necessidades de refor\u00e7o<\/strong>:<\/p>\n<ul>\n<li><strong>Melhoria da capacidade de suporte<\/strong>: Aumenta os valores de CBR ao confinar as part\u00edculas do solo.<\/li>\n<li><strong>Controlo da liquida\u00e7\u00e3o<\/strong>: Reduzir a consolida\u00e7\u00e3o a longo prazo em solos moles (por exemplo, argila, silte).<\/li>\n<\/ul>\n<p><strong>Geogrelhas recomendadas<\/strong>:<\/p>\n<ul>\n<li><strong>Geogrelhas uniaxiais de alta resist\u00eancia<\/strong>\u00a0(por exemplo,\u00a0<strong>Geogrelha UX de poli\u00e9ster Lianyi<\/strong>):\n<figure id=\"attachment_509\" aria-describedby=\"caption-attachment-509\" style=\"width: 225px\" class=\"wp-caption alignnone\"><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-509\" title=\"Geogrelha biaxial de poli\u00e9ster\" src=\"https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2023\/11\/PET-UX-Geogrid-installation-3-225x300.jpg\" alt=\"Polyester biaxial geogrid\" width=\"225\" height=\"300\" srcset=\"https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2023\/11\/PET-UX-Geogrid-installation-3-225x300.jpg 225w, https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2023\/11\/PET-UX-Geogrid-installation-3-768x1024.jpg 768w, https:\/\/www.lianyigeosyn.com\/wp-content\/uploads\/2023\/11\/PET-UX-Geogrid-installation-3.jpg 1080w\" sizes=\"(max-width: 225px) 100vw, 225px\" \/><figcaption id=\"caption-attachment-509\" class=\"wp-caption-text\">Geogrelha uniaxial de poli\u00e9ster<\/figcaption><\/figure>\n<ul>\n<li>Resist\u00eancia \u00e0 tra\u00e7\u00e3o &gt;200 kN\/m para estabiliza\u00e7\u00e3o profunda de solos moles.<\/li>\n<li>Aberturas grandes (\u226550 mm) para maximizar o interbloqueio entre o solo e a geogrelha.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Geoc\u00e9lulas<\/strong>\u00a0(por exemplo,\u00a0<strong>Geoc\u00e9lula PEAD Lianyi<\/strong>):\n<ul>\n<li>Confinamento celular 3D para solos ultra-macios (por exemplo, turfa, argila org\u00e2nica).<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>M\u00e9todos de conce\u00e7\u00e3o<\/strong>:<\/p>\n<ul>\n<li><strong>Teoria de Boussinesq<\/strong>\u00a0ou\u00a0<strong>Software PLAXIS<\/strong>\u00a0para modelar a distribui\u00e7\u00e3o de tens\u00f5es.<\/li>\n<li>Objetivo CBR p\u00f3s-refor\u00e7o &gt;8% para aplica\u00e7\u00f5es em auto-estradas.<\/li>\n<\/ul>\n<hr \/>\n<h3><strong>Principais diferen\u00e7as entre camadas<\/strong><\/h3>\n<table>\n<thead>\n<tr>\n<th><strong>Camada<\/strong><\/th>\n<th><strong>Modo de falha<\/strong><\/th>\n<th><strong>Tipo de geogrelha<\/strong><\/th>\n<th><strong>Propriedades cr\u00edticas<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Asfalto<\/strong><\/td>\n<td>Fissuras de reflex\u00e3o, sulcos<\/td>\n<td>Fibra de vidro, comp\u00f3sitos<\/td>\n<td>Elevada resist\u00eancia \u00e0 tra\u00e7\u00e3o, ader\u00eancia ao betume<\/td>\n<\/tr>\n<tr>\n<td><strong>Base<\/strong><\/td>\n<td>Migra\u00e7\u00e3o agregada<\/td>\n<td>Biaxial\/Triaxial<\/td>\n<td>Compatibilidade abertura-agregado, resist\u00eancia da jun\u00e7\u00e3o<\/td>\n<\/tr>\n<tr>\n<td><strong>Sub-base<\/strong><\/td>\n<td>Contamina\u00e7\u00e3o, satura\u00e7\u00e3o<\/td>\n<td>Geogrelha composta+geot\u00eaxtil<\/td>\n<td>Filtragem, separa\u00e7\u00e3o<\/td>\n<\/tr>\n<tr>\n<td><strong>Sub-base<\/strong><\/td>\n<td>Assentamento, falha de rolamento<\/td>\n<td>Geogrelhas uniaxiais<\/td>\n<td>Elevada resist\u00eancia \u00e0 tra\u00e7\u00e3o, grandes aberturas<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h3><strong>Exemplos do mundo real<\/strong><\/h3>\n<ol start=\"1\">\n<li><strong>Refor\u00e7o de asfalto<\/strong>:\n<ul>\n<li><strong>Autoestrada I-95 (EUA)<\/strong>: As geogrelhas de fibra de vidro aumentaram a vida \u00fatil do pavimento em 50%, reduzindo as fissuras de reflex\u00e3o.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Estabiliza\u00e7\u00e3o do subleito<\/strong>:\n<ul>\n<li><strong>Projeto do Metro do Dubai<\/strong>: As geogrelhas uniaxiais melhoraram o CBR do subleito de areia macia de 2% para 12%.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<hr \/>\n<h3><strong>Normas e ensaios<\/strong><\/h3>\n<ul>\n<li><strong>Asfalto<\/strong>: ASTM D7864 (ensaio de cisalhamento da interface geogrelha-asfalto).<\/li>\n<li><strong>Base\/Subbase<\/strong>: ASTM D6637 (resist\u00eancia \u00e0 tra\u00e7\u00e3o), ISO 10318 (efici\u00eancia de jun\u00e7\u00e3o).<\/li>\n<li><strong>Sub-base<\/strong>: ASTM D6913 (an\u00e1lise da grada\u00e7\u00e3o do solo).<\/li>\n<\/ul>\n<hr \/>\n<h3><strong>Conclus\u00e3o<\/strong><\/h3>\n<p>Adaptar a sele\u00e7\u00e3o da geogrelha \u00e0s exig\u00eancias ambientais e de tens\u00e3o espec\u00edficas de cada camada:<\/p>\n<ul>\n<li><strong>Asfalto<\/strong>: Dar prioridade \u00e0 resist\u00eancia \u00e0 fissura\u00e7\u00e3o e \u00e0 ader\u00eancia.<\/li>\n<li><strong>Base<\/strong>: Otimizar o interbloqueio dos agregados e a reparti\u00e7\u00e3o da carga.<\/li>\n<li><strong>Sub-base<\/strong>: Concentrar-se na separa\u00e7\u00e3o e drenagem.<\/li>\n<li><strong>Sub-base<\/strong>: Maximizar o confinamento e a capacidade de suporte do solo.<\/li>\n<\/ul>\n<p>Ao alinhar as propriedades da geogrelha com os requisitos espec\u00edficos da camada, \u00e9 poss\u00edvel melhorar significativamente o desempenho e a longevidade do pavimento.<\/p>","protected":false},"excerpt":{"rendered":"<p>How to Choose Geogrids for Soft Soil Stabilization Soft soil stabilization requires geogrids that enhance load distribution, reduce settlement, and improve shear strength. Below is a structured guide to selecting the optimal geogrids for such applications, supported by technical insights and industry practices. 1. Assess Soil Characteristics and Project Requirements Soil Type: Soft soils (e.g., [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":1191,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[36],"tags":[239],"acf":[],"_links":{"self":[{"href":"https:\/\/www.lianyigeosyn.com\/pt\/wp-json\/wp\/v2\/posts\/1183"}],"collection":[{"href":"https:\/\/www.lianyigeosyn.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lianyigeosyn.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lianyigeosyn.com\/pt\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lianyigeosyn.com\/pt\/wp-json\/wp\/v2\/comments?post=1183"}],"version-history":[{"count":0,"href":"https:\/\/www.lianyigeosyn.com\/pt\/wp-json\/wp\/v2\/posts\/1183\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lianyigeosyn.com\/pt\/wp-json\/wp\/v2\/media\/1191"}],"wp:attachment":[{"href":"https:\/\/www.lianyigeosyn.com\/pt\/wp-json\/wp\/v2\/media?parent=1183"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lianyigeosyn.com\/pt\/wp-json\/wp\/v2\/categories?post=1183"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lianyigeosyn.com\/pt\/wp-json\/wp\/v2\/tags?post=1183"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}