Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mechanical Tunnel Boring Prediction and Machine Design
Described are research efforts to obtain accurate data to verify previously developed equations for mechanical tunnel boring. Procedures pertinent to machine design and performance were also investigated. A laboratory indentation test procedure was designed to predict field boring performance. Extensive indentation tests were conducted in samples of three rock types, results of which confirmed the applicability of indentation tests as a reliable tool to predict disc cutting forces. Field boring data from an active tunneling site indicate that indentation tests can be used as a means of accurately estimating field boring performance. Prediction equations developed during the course of the first year's research were applied to boring data from four ongoing tunneling projects and actual machine performance. An automatic acquisition system was installed on a tunnel boring machine (TBM) to obtain extensive and accurate boring data. Laboratory linear cutting tests were performed to gain a preliminary understanding of the effect of a cutterhead profile on TBM performance. Good correlation was obtained between theoretical and laboratory results of forces involved in cutting with disc-button cutters. Comments and recommendations are offered concerning the design and operation of TBM. Extensive data, graphs, illustrations and equations are included.
Mechanical Tunnel Boring Prediction and Machine Design
Described are research efforts to obtain accurate data to verify previously developed equations for mechanical tunnel boring. Procedures pertinent to machine design and performance were also investigated. A laboratory indentation test procedure was designed to predict field boring performance. Extensive indentation tests were conducted in samples of three rock types, results of which confirmed the applicability of indentation tests as a reliable tool to predict disc cutting forces. Field boring data from an active tunneling site indicate that indentation tests can be used as a means of accurately estimating field boring performance. Prediction equations developed during the course of the first year's research were applied to boring data from four ongoing tunneling projects and actual machine performance. An automatic acquisition system was installed on a tunnel boring machine (TBM) to obtain extensive and accurate boring data. Laboratory linear cutting tests were performed to gain a preliminary understanding of the effect of a cutterhead profile on TBM performance. Good correlation was obtained between theoretical and laboratory results of forces involved in cutting with disc-button cutters. Comments and recommendations are offered concerning the design and operation of TBM. Extensive data, graphs, illustrations and equations are included.
Mechanical Tunnel Boring Prediction and Machine Design
L. Ozdemir (Autor:in) / F. D. Wang (Autor:in)
1979
222 pages
Report
Keine Angabe
Englisch
Mechanical Tunnel Boring Prediction and Machine Design
| NTIS | 1977
Tunnel Boring Machine Development
| British Library Conference Proceedings | 2008
Engineering Index Backfile | 1955
British Library Online Contents | 2006