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Sebastiano Pelizza,김상환 사단법인 한국터널지하공간학회 2004 한국터널지하공간학회논문집 Vol.6 No.2
In this paper the historical and technological developments of rock TBM and the technical classification of the machines proposed by ITA (International Tunnelling Association) are initially presented. Then the general criteria for the TBMs selection are discussed and at the end the limiting geological conditions for the application of TBMs are analysed.
OGGERI Claudio,김상환,PEILA Daniele,PELIZZA Sebastino 사단법인 한국터널지하공간학회 2004 한국터널지하공간학회논문집 Vol.6 No.4
Tunnel portals are often located in areas where the risk of rock fall and/or detachement of rock fragments from rocky slopes is high. In this case it is necessary to design the portals so as to protect the road (i.e. using an artificial tunnel) or to instal structures that are able to intercept falling blocks on the slope. This paper deals with the design problems of these structures and includes a special analysis of net fences which have undergone a remarkable technological improvement over recent years.
Daniele Peila,김상환,Pier Paolo Oreste,Sebastiano Pelizza 사단법인 한국터널지하공간학회 2004 한국터널지하공간학회논문집 Vol.6 No.3
The practice of introducing and grouting reinforced fiber glass pipes or bar into the core to be excavated to maintain stable the tunnel face during excavation has been applied to many tunnels, where difficult geotechnical conditions are present, with good results in terms of safety and speed of works. This reinforcing technique, initially developed to be used jointly with the mechanical precut in clay, has been widely used with other geotechnical conditions as the only type of reinforcement or joined with other ground consolidation and/or reinforcement techniques (i.e. steel pipes or jet-grouting umbrella). At present same numerical researches have been carried out to find which are the real working conditions of the reinforcing elements but no final results have been obtained for the definition of the best design approaches. In this work the results of a three dimensional parametric numerical model is presented.