Response by the authors to R.M. Goktan discussion to the paper: Q.M. Gong and J.Zhao (2007). Influence of rock brittleness on TBM penetration rate in Singapore granite, Tunnelling and Underground Space Technology, Vol. 22, pp. 317-324

Gong, Q MZhao, J2009-08-312009-08-312009-08-31200810.1016/j.tust.2007.04.013https://infoscience.epfl.ch/handle/20.500.14299/42308WOS:00025404070001711805Response by the authors to R.M. Goktan discussion to the paper: Q.M. Gong and J.Zhao (2007). Influence of rock brittleness on TBM penetration rate in Singapore granite, Tunnelling and Underground Space Technology, Vol. 22, pp. 317-324text::journal::journal article::research article