Monitoring the vibration response of a tunnel boring machine : application to real time boulder detection
MetadataShow full item record
This thesis is a continuation of Bryan Walter’s dissertation work (2013), which analyzed ambient vibration of a tunnel boring machine (TBM) and proved this could be used to detect boulders. This work seeks to characterize vibration of a TBM consistent with boulder impacts. A network of accelerometers was placed on a TBM in Seattle to record the vibration response to tested impacts and machine operation (cutterhead rotation). This network was then secured in place for continuous monitoring during tunneling. The investigation was driven by the development of a boulder detection algorithm that ...