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GEOMUROS
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INDICE OBJETIVOS ..................................................................................................................................... 7 OBEJETIVO GENERAL.- ............................................................................................................... 7 OBEJTIVOS ESPECIFICOS.-.......................................................................................................... 7 JUSTIFICACIÒN: ............................................................................................................................. 8 MARCO TEORICO.- ........................................................................................................................ 8 GEOMUROS.- ............................................................................................................................. 8 GEOTECNICA.- ........................................................................................................................... 8 CONSTRUCCION DE GEO MUROS.- ........................................................................................... 9 FLEXIBILIDAD: ............................................................................................................................ 9 CARACTERÍSTICAS TÉCNICAS DE LOS GEOMUROS ............... ........................ ................... ................... .................. .................. .................. ......... 10 ÓPTIMA RESISTENCIAA LA CORROSIÓN.- ............................................................................ 10 PERMEABILIDAD.- ................................................................................................................ 10 BELLEZAPAISAJISTICA.- ........................................................................................................ 10 FACILIDADES ALPROYECTISTA.- ........................................................................................... 10 CARACTERISTICAS Y VENTAJAS.- ......................................................................................... 10 APLICACIÓN.- ....................................................................................................................... 11 MATERIAL Y HERRAMIENTAS.- .................................................................................................... 12 MATERIAL.- .............................................................................................................................. 12 CAJA DE MADERA.- .............................................................................................................. 12 MATERIAL DE RELLENO DE LA CAJA.- .................................................................................. 13 MATERIAL DEL MURO DE CONTENCION.- ........................................................................... 14 HERRAMIENTAS ....................................................................................................................... 15 FABRICACIÓN DE LOS ELEMENTOS DE REFUERZO. ..................................................................... 15 CONSTRUCCIÓN .......................................................................................................................... 15 PRUEBA DE CARGA ...................................................................................................................... 15 FASE I.- PESO PROPIO .............................................................................................................. 15
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CONCLUSIONES ........................................................................................................................... 17 BIBLIOGRAFIA.- ............................................................................................................................ 18 ANEXO.- ........................................................................................... Error! Bookmark not defined.
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Resumen.-
Los Geomuros son una tecnología poco usada en Perú para muros de contención, ya que actualmente el método se desconoce en el país. El tema de geomuros en ingeniería civil es de mucha importancia para nuestro crecimiento profesional, profesi onal, es por eso que nuestro grupo conformado por los siguientes integrantes: Nos disponemos a participar del concurso de geomuros organizado por el CONEIC Cusco 2018.
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INTRODUCCIÒN
La estabilidad de taludes es un estudio básico en el momento de realizar una carretera puesto que en una obra no siempre se tiene un terreno llano. Por el contrario muchas veces nos enfrentamos a un terreno demasiado accidentado, el cual imposibilita un fácil trabajo. Los Geomuros, una buena opción para la estabilización de taludes, puesta que en comparación de un muro de contención, el cual nos genera una inflación del presupuesto de la obra, puesta que su propia composición, composici ón, la cual está realizada reali zada de una mezcla de concreto. En cambio un Geomuro, está compuesto
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OBJETIVOS.OBEJETIVO GENERAL.
Diseñar y construir un modelo a escala de un muro de contención, capaz de soportar su propia masa asi como una sobrecarga. en base a un método en el cual se necesiten una menor cantidad de refuerzos y ampliando la estabilidad.
OBEJTIVOS ESPECIFICOS.
Realizar un estudio previo teórico, para obtener un diseño de la caja para el el ensayo de geo muros.
Nosotros como participantes haremos nuestra maqueta de acuerdo al reglamento establecido por el CONEIC y usando los materiales con las características dichas por el mismo.
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JUSTIFICACIÒN.-
Nuestro planteamiento se basa en formar una geomalla con la menor cantidad posible de material, pero a su vez sacando su máximo rendimiento a cargas haciendo previamente algunas prácticas anteriores al concurso y dando una idea como y cuando se podría usas este tipo de geomuros. Para lo cual nos preparamos primeramente informándonos y captando información de todo lado ya sea de internet, libros, revistas, docentes, etc. que nos será de mucha importancia para nuestro planteamiento de proyecto.
MARCO TEORICO.-
GEOMUROS.-
Geomuros es un sistema para construir muros de contención, con elementos de concreto armado entramados, formando una red que es rellenada con suelo compactable, para constituir muros de gravedad . Los Geomuros, permiten una economía sustancial en costos y tiempo de ejecución, siendo a la vez una solución adecuada desde el punto de vista técnico para muchas aplicaciones .Para su diseño y cálculo se realiza el proyecto según el análisis clásico para un muro de gravedad,
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profundas (pilotes y pilas). Presas y diques son estructuras que pueden ser construidas de suelo o roca y que para su estabilidad y estanqueidad dependen en gran medida de los materiales sobre los que están asentados o de los cuales se encuentran rodeados. Finalmente los túneles son estructuras construidas a través del suelo o roca y cuyo método constructivo depende en gran medida de las características geológicas del terreno que se verá afectado (tipos y condiciones de litologías atravesadas, condiciones hidrogeológicas, condiciones tectónicas, etc.) lo que influye a su vez en la duración de la obra y en sus costes. CONSTRUCCION DE GEO MUROS.-
Los muros construídos con el sistema Geomuros utilizan sustancialmente menos concreto y acero de refuerzo que un muro equivalente de concreto armado. El 88% del material del muro ésta constituido por suelo compactable y el 11% por concreto armado. No se requiere mano de obra especializada para su ejecución, al contrario de un muro de concreto o piedra donde se requieren carpinteros, cabilleros ó pedreros. Debido al relativo poco peso de sus elementos de concreto armado no se requieren grúas ó maquinaria pesada para el manejo e instalación de los elementos. FLEXIBILIDAD:
El sistema permite curvas cóncavas, convexas, escalones, terrazas y la capacidad de adaptarse con facilidad a las exigencias paisajísticas.
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CARACTERÍSTICAS CARACTERÍSTICAS TÉCNICAS DE LOS GEOMUROS ÓPTIMA RESISTENCIAA LA CORROSIÓN.-
Los elementos de concreto armado se elaboran con los revestimientos de concreto normativos necesarios para evitar la corrosión del acero de refuerzo PERMEABILIDAD.-
La naturaleza abierta del Geomuro permite un adecuado drenaje del terreno BELLEZAPAISAJISTICA.-
El sistema es ideal para elaborar paisajismo que realce las obras de urbanismo. FACILIDADES ALPROYECTISTA.-
Al seleccionar seleccionar el sistema Geomuros®para un proyecto proyecto específico, específico, elaboramos el proyecto sin ningún costo, incluyendo los detalles constructivos, cómputos métricos y especificaciones de construcción. CARACTERISTICAS Y VENTAJAS.
Sistema de alto rendimiento, reduciendo significativam significativamente ente los tiempos de construcción
La flexibilidad de las secciones a montar, se adapta fácilmente al contorno del paisaje
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Pudiendo utilizar material para relleno de origen cercano, de conocidas características
Alta confiabilidad, del diseño y cálculo, de acuerdo a estándares y normas nacionales e internacionales
En general, producen un muy buen buen efecto efecto visual donde se se construya, siendo amigable con el ambiente y en armonía con el entorno.
APLICACIÓN.
Ampliación de áreas deportivas, accesos y de estacionamiento estacionam iento en proyectos inmobiliarios
Ensanches y regularización de calzadas en carreteras, caminos de zonas rurales y de montaña
Restauración de taludes y terraplenes fallados
Muros de paisajismo en parque, jardines y obras de mitigación del impacto ambiental.
Pretiles de piscinas agrícolas e industriales
Barreras contra avalanchas
Barreras anti-ruidos
Estructuras hidráulicas
Taludes de vertederos y disipadores de energía
Hay diferentes tipos de geomuros de suelo reforzado disponibles en términos de
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La geomalla del d el geomuro de d e suelo reforzado ref orzado estabiliza el relleno, reduce la presión en la pared, son compuestos de alto peso molecular, de alta tenacidad con hilos de polímeros multifilamento recubiertos con PVC y tienen una resistencia de diseño a largo plazo que van desde un poco más de 45.5 kilonewton/m a 250 kN/m. El suelo reforzado a base de geomuro se trata de tierra tier ra mecánicamente estabilizada estabili zada detrás del muro, compactada por capas, en las cuales se incorpora el elemento resistente a la tracción dado por la geo grilla o geomalla. Una alternativa al geomuro de suelo reforzado con geo mallas la constituyen los bloques de gaviones de gaviones que apilados forman apilados forman un muro de sostenimiento de gravedad. Esto soporta sin volcar y sin deslizar debido a su gran peso. Estos son pesados, costosos y demandan mucha cantidad de material. En realidad los geomuros de suelo reforzado son una variante muy válida, medio ambiente compatible, de bajo impacto y con una huella de carbono muy baja. MATERIAL Y HERRAMIENTAS.-
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Las superficies del interior de la caja serán de acabado natural. La caja no podrá ser modificada en ningún aspecto.
(Figura 2)
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(Tabla 1)
El material de relleno extraído de la cantera maravillas, cumplía con los requisitos establecidos por el comité del concurso y con la tabla 1 y 2
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HERRAMIENTAS.-
Mazo de goma
Lentes de seguridad
Pala
Bote de plástico
Balde
Regla metalica
Tijeras
Cinta
FABRICACIÓN DE LOS ELEMENTOS DE REFUERZO.-
Fabricamos la cartulina con las medidas de la caja, hicimos tiras de papel kraft y
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FASE II.- SOBRECARGA VERTICAL.Encima del balde aumentamos el mismo material que usamos en la compactación
por mas de 2 min. Aguanto. Luego aplicamos un peso de 100 kg y nose deciso, apostamos por 150 kg MEMORIA DE CALCULO.Se realizaron dos ensayos de geo muros:
TIE TIEMPO MPO
Peso
Primera era prue prueba ba de car carga
Sesgun esgunda da Prueba ueba de Campo ampo
2min
0Kg,
0Kg,
0Kg,
2min
50kg.
0Kg,
50kg.
2min
100Kg.
0Kg,
100Kg.
2min
150Kg.
0Kg,
130Kg,
Tabla 3: Tiempo y carga en los ensayos En el primer ensayo se experimento el procedimiento a seguir en el ensayo, por lo que no se procedió a anotar los datos, ya que en el primer p rimer ensayo se pudo observar que la cartulina y los refuerzos no pudieron soportar la carga de arena compactada
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ANALISIS ANALISIS DE RESULTADOS.-
Como se especifica en los resultados, se opto por no anotar los datos y resultados del primer ensayo, ya que no se logró estabilizar la cartulina debido a la mala distribución de refuerzos, por lo que el primer ensayo no soporto el peso propio del material de relleno. En el segundo ensayo se procedió a realizar los elementos de esfuerzo, elaborados a base de papel Kraft, especificados en las bases del concurso, usando una fracción de dicho papel de 60cm x 60cm suministrado en cada capa.
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Se realizo un estudio previo teórico, teórico , para obtener un diseño de la caja para el ensayo de geo muros, optando por realizar el método aplicado en el informe con refuerzos dobles en el papel kraft.
BIBLIOGRAFIA.-
-Bases para el concurso de geo muros XXVI CONEIC CUSCO 2018
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ANEXOS. ANEXOS.-
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