{"product_id":"tbm-tunnelling-in-jointed-and-faulted-rock-hardback","title":"TBM Tunnelling in Jointed and Faulted Rock - Hardback","description":"\u003cp\u003eThis practical guide describes the stage-by-stage development of a method for predicting the penetration rate (PR) and the advance rate (AR) for tunnel boring machines based on an expanded version of the \u003cem\u003eQ\u003c\/em\u003e-value, \u003cem\u003eQ\u003c\/em\u003eTBM. The author analyzes 145 TBM tunnels that total 1,000km in length. He then develops simple formulae to estimate PR and AR from the \u003cem\u003eQ\u003c\/em\u003eTBM value and to back-calculate \u003cem\u003eQ\u003c\/em\u003eTBM from performance data. The book quantitatively explains actual advance rates as high as five m\/hr for one day or as low as 0.005 m\/hr for several months. It also covers logging methods, empirical TBM tunnel support design, and numerical verification of support. \u003c\/p\u003e","brand":"Taylor \u0026 Francis","offers":[{"title":"Default Title","offer_id":45575991034094,"sku":"9789058093417","price":92.8,"currency_code":"AUD","in_stock":true}],"url":"https:\/\/bookland.com.au\/products\/tbm-tunnelling-in-jointed-and-faulted-rock-hardback","provider":"Book Land AU","version":"1.0","type":"link"}