Paredes moldeadas
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Archivos
Fecha
2008
Autores
Profesor/a Guía
Facultad/escuela
Idioma
es
Título de la revista
ISSN de la revista
Título del volumen
Editor
Universidad Andrés Bello
Nombre de Curso
Licencia CC
Licencia CC
Resumen
El continúo avance tecnológico y de procesos constructivos, sumado a la búsqueda
constante de reducir los tiempos de ejecución de las faenas, hace necesario conocer
las distintas alternativas que aparecen día a día y que buscan alcanzar estos objetivos.
La idea de esta investigación es dar conocer un proceso constructivo muy utilizado en la
alta minería y en grandes obras civiles, como es la utilización de las paredes moldeadas
para el sostenimiento de excavaciones.
Las paredes moldeadas son muros de hormigón armado o no, de gran profundidad,
excavados con maquinaria especial y ayudados con la adición de lodo bentonítico con
el fin de evitar desprendimientos de terreno dentro de la excavación. El lodo bentonítico
es un lodo formado por arcilla con propiedades expansivas, la cual suple el volumen del
material retirado y evita desprendimientos de la excavación.
Al iniciar la excavación masiva, se instalan puntales de hormigón entre las paredes para
evitar el volteo, brindando gran seguridad para las faenas siguientes de construcción de
las obras civiles del túnel. Con este método de excavación se logran, en general muy
buenos resultados, tanto de seguridad de los trabajadores, como de tiempo y de
ejecución.
The continuous technological development and the building procedures, added to the constant researches to reduce the performance timings in the jobsites compel to acknowledge the different alternatives appearing day by day, which look forward to match these aims. Thus, taking profit out from the graduating students' experiences the current study was made to let others know the construction's procedures intensively applied in the huge mining sites and in the most important public works. The molded walls are protection made of deep dug concrete, reinforced or not. These walls are dug using special machinery and using bentonitic clay. Thus, producing the reinforment of the groung avoiding sliding terrains inside the excavation site. The bentonitic clay is a special kind of argil with expansive properties which fills the volume which has been taken off avoiding the sliding of any material. At the beginning of the massive excavation reinforced concrete bars between the walls to prevent the possible bending and provinding a lot more security for the next performances in the tunnel construction. Using this method the best results and in general providing the workers's security and the reduction of the performance time.
The continuous technological development and the building procedures, added to the constant researches to reduce the performance timings in the jobsites compel to acknowledge the different alternatives appearing day by day, which look forward to match these aims. Thus, taking profit out from the graduating students' experiences the current study was made to let others know the construction's procedures intensively applied in the huge mining sites and in the most important public works. The molded walls are protection made of deep dug concrete, reinforced or not. These walls are dug using special machinery and using bentonitic clay. Thus, producing the reinforment of the groung avoiding sliding terrains inside the excavation site. The bentonitic clay is a special kind of argil with expansive properties which fills the volume which has been taken off avoiding the sliding of any material. At the beginning of the massive excavation reinforced concrete bars between the walls to prevent the possible bending and provinding a lot more security for the next performances in the tunnel construction. Using this method the best results and in general providing the workers's security and the reduction of the performance time.
Notas
Tesis (Ingeniero Constructor)
Palabras clave
Paredes, Excavaciones, Construcción