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Abstract(s)
As obras subterrâneas têm actualmente maior relevância, sobretudo em meios
urbanos e são, desde a fase de estudo até à sua execução, projectos tecnicamente
complexos, exigentes e interessantes. O meio em que a obra subterrânea está inserida
condiciona, quer na fase de estudo quer no desenvolvimento dos trabalhos, as opções
técnicas e representa um desafio constante para todos os intervenientes. São poucos
os técnicos que têm a oportunidade de acompanhar e apreender o conhecimento
envolvido nestas obras, pelo que é importante que toda a experiência adquirida seja
registada e se possível transmitida. Pela sua formação e vocação, os engenheiros
geotécnicos desempenham um papel de destaque nestes empreendimentos, onde o
conhecimento e a sensibilidade técnica, associados à experiência em trabalhos
semelhantes, são factores determinantes para atingir os objectivos propostos. Com
este trabalho pretende-se caracterizar, valorizar, analisar e concluir sobre as várias
etapas desenvolvidas na construção do túnel de Seixo Alvo, enquadrado na Concessão
do Douro Litoral. Realizou-se uma apreciação do estado da arte e apresenta-se o túnel
do Seixo Alvo como caso de estudo, onde se evidencia a importância do estudo e
observação da obra e do meio em que está inserida, caracteriza os métodos e
processos construtivos implementados e propostos, analisa os incidentes ocorridos e
valoriza os trabalhos executados. Por último conclui-se sobre as técnicas, os custos e
os rendimentos obtidos.
The underground structures are currently more relevant, especially in urban areas and are, from the study phase to implementation, projects technically complex, demanding and interesting. Technical options are conditioned by the area in which the project is to be implemented, whether in its study phase or throughout its construction, and it represents a constant challenge for all the intervenient. Few are the technicians who have the opportunity to absorb and understand the knowledge involved in these tasks, so it is important to keep a record of the whole experience to transmit it. Due to their training, the geotechnical engineers play a prominent role in these developments, where the knowledge and technical ability, along with other similar experiences, are crucial to achieve the goals set. This paper aims to exemplify, examine and list the multiple steps taken in the construction of Seixo Alvo’s tunnel, regarding the Douro Litoral concession. We present this tunnel as a case study, highlighting the importance of observation and study of the surrounding areas, describing the methods and construction processes implemented, considering the incidents and the tasks done. At last, this paper lists the techniques, the costs and the income obtained.
The underground structures are currently more relevant, especially in urban areas and are, from the study phase to implementation, projects technically complex, demanding and interesting. Technical options are conditioned by the area in which the project is to be implemented, whether in its study phase or throughout its construction, and it represents a constant challenge for all the intervenient. Few are the technicians who have the opportunity to absorb and understand the knowledge involved in these tasks, so it is important to keep a record of the whole experience to transmit it. Due to their training, the geotechnical engineers play a prominent role in these developments, where the knowledge and technical ability, along with other similar experiences, are crucial to achieve the goals set. This paper aims to exemplify, examine and list the multiple steps taken in the construction of Seixo Alvo’s tunnel, regarding the Douro Litoral concession. We present this tunnel as a case study, highlighting the importance of observation and study of the surrounding areas, describing the methods and construction processes implemented, considering the incidents and the tasks done. At last, this paper lists the techniques, the costs and the income obtained.
Description
Keywords
Túneis urbanos Escavação Suporte Observação Incidentes geotécnicos Urban tunnels Excavation Support Observation Geotechnical incidents
Citation
Publisher
Instituto Politécnico do Porto. Instituto Superior de Engenharia do Porto