Publicação
An anchored retaining wall in CSM
| Resumo: | Cutter soil mixing (CSM) is being recently used in Portugal in several applications. This paper describes a solution in cutter soil mixing reinforced with vertical steel profiles IPE270 for a retaining wall with 66 m long and 13 m high constructed in geological formations of landfill materials, Miocene sandy soils and sandstones, with a phreatic level around 8 m depth. This construction is done nearby commercial buildings. The solution is justified against more classical solutions for anchored retaining walls considering the following aspects: feasibility of CSM in the geological and environment conditions, predict behaviour during and post construction, simplicity of construction process, time of construction, economy and quality assurance. Numerical modelling using a commercial program is carried out, based in geotechnical parameters established at the project level, showing a good agreement of the observed data, in terms of horizontal displacements of the wall and also of the safety levels against bending, shear and compression. |
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| Autores principais: | Correia, A. Gomes |
| Outros Autores: | Tinoco, Joaquim Agostinho Barbosa; Pinto, A.; Tomásio, R. |
| Assunto: | Cutter soil mixing Deep soil mixing Retaining wall Soil treatment |
| Ano: | 2013 |
| País: | Portugal |
| Tipo de documento: | comunicação em conferência |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| Resumo: | Cutter soil mixing (CSM) is being recently used in Portugal in several applications. This paper describes a solution in cutter soil mixing reinforced with vertical steel profiles IPE270 for a retaining wall with 66 m long and 13 m high constructed in geological formations of landfill materials, Miocene sandy soils and sandstones, with a phreatic level around 8 m depth. This construction is done nearby commercial buildings. The solution is justified against more classical solutions for anchored retaining walls considering the following aspects: feasibility of CSM in the geological and environment conditions, predict behaviour during and post construction, simplicity of construction process, time of construction, economy and quality assurance. Numerical modelling using a commercial program is carried out, based in geotechnical parameters established at the project level, showing a good agreement of the observed data, in terms of horizontal displacements of the wall and also of the safety levels against bending, shear and compression. |
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