A new method for calculating energy release rate in tunnel excavation subjected to high in situ stress

Bagaraja, 2013, Rockburst prediction of a cut and fill mine by using energy balance and induced stress, Procedia Earth Planet. Sci., 6, 426, 10.1016/j.proeps.2013.01.056 Bazant, 1990, Determination of fracture energy, process zone length and brittleness number from size effect, with application to rock and concrete, Int. J. Fract., 44, 111, 10.1007/BF00047063 Chen, 2008, Research on prevention measures for failure induced by tunneling in deep hard rock, Chin. J. Rock Mech. Eng., 27, 2064 Cook, 1966, Rock mechanics applied to the study of rockbursts, J. South Afr. Inst. Mining Metall., 66, 93 Lu, 2014, Mechanism of zonal disintegration within surrounding rock of deep tunnel based on 3D analytical model of thick-walled cylinder, Rock Soil Mech., 35, 2673 Martel, 1989, Mechanics of slip and fracture along small faults and simple strike-slip fault zones in granitic rock, J. Geophys. Res. Atmos., 94, 9417, 10.1029/JB094iB07p09417 Stecher, 1981, Prediction of crack motion from detonation in brittle materials, Int. J. Rock Mech. Mining Sci. Geomech. Abstr., 18, 23, 10.1016/0148-9062(81)90263-1 Su, 2006, Study on new index of local energy release rate for stability analysis and optimal design of underground rockmass engineering with high geostress, Chin. J. Rock Mech. Eng., 25, 2453 Wang, 1994, A 3-D approach to the calculation of the energy release rate in some fracture problems, Int. J. Fract., 66, 71, 10.1007/BF00012636 Xie, 2001, Optimization of mining parameters for rational exploitation of dongguashan copper ore deposit, China Mining Mag., 4, 1 Yan, 2001, Reliability analysis based on response surface function and its application in a chamber, Rock Soil Mech., 22, 327 Zhou, 2010, Effect of loading rate on fracture characteristics of rock, J. Central South Univ. Technol., 17, 150, 10.1007/s11771-010-0024-4