... Abstract In this paper, an artificial neural network-based dynamic prediction model of penetration rate (PR) is proposed. Four tunnel boring machine (TBM) operational parameters, including cutterhead rotational speed (RPM), cutterhead torque (T), total thrust (F), and advance rate (AR...

...8th Asian Rock Mechanics Symposium ARMS8 14-16 October 2014, Sapporo, Japan Experimental Study on Rock Fragmentation by the 19-inch TBM Cutter and Statistical Analysis of Debris Wenliang. Yang a,b, Yadong. Xue a,b* and Xueqiang. Zhang c ? ? ? ? Abstract The inspiration of this paper stems from...

... more particularly in tunnelling is being felt. As a consequence, use of TBM has gained importance in hydropower tunnelling for being a more dependable alternative to drill & blast method. However, the ability of TBM to cope with varying ground conditions in Himalaya has posed a question mark...

...8th Asian Rock Mechanics Symposium ARMS8 14-16 October 2014, Sapporo, Japan Rapid Excavation with TBM in Hard Bedrock, Utilizing Information-oriented Technique K. Miyazawaa, K. Nakanoa, T. Iwaob and H. Sasaoc* aEast Nippon Expressway Co. Ltd, Tokyo, Japan bNippon Expressway Research Institute Co...

... moderate pace for another 11 days and 134 more meters excavated in the gas infested grounds before 4 men died during a damage assessment survey of the TBM after a power failure that had forced the tunnel ventilation system to temporarily shut down. This paper is to discuss hazards and geological sources...

... ABSTRACT The 1 st subsea tunnel project in Korea, Boryung tunnel which is located in western Korea, South Chungcheong province between the famous beach Daecheon, Boryung city and Wonsan Island as a part of the local road No.77 along the western coast. Large shielded TBM will be supplied more...

... structural geology Artificial Intelligence TBM full scale linear rock specific energy portable linear rock Reservoir Characterization PLCM performance prediction Bilgin machine learning Upstream Oil & Gas disc cutter normal force unrelieved cutting mode tumac v-type disc...

... University of Technology F. AYATI Payamenoor University of Shahrekord, Iran M. HASHEMI Zayandab Engineering Consulting Abstruct : There are a lot of complex problems involving a number of conflicting factors when planning a TBM drive in squeezing ground. In this respect, numerical analyses represent...

... ABSTRACT Potential geotechnical hazards make it difficult to select an appropriate TBM in adverse and difficult ground conditions. So, use of an efficient decision making technique which can take into account several criteria in such conditions is necessary. Analytic hierarchy process (AHP...

.... The Gripper TBMs are used in solid rock conditions and the Shielded TBMs (Single or Double Shielded TBMs) are used in stable and unstable rock conditions. The success of each tunnelling system depends on the excavation process, the rock support concept and the mucking system and logistical system...