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通过群洞开挖的有限元计算和地质力学模型试验研究，论证了群洞开挖的稳定性和开挖方案的可行性。通过现场开挖施工安全监测与理论研究结果的比较，揭示了灰页岩互层岩体中大型群洞开挖过程中的规律。
Through the finite element calculation and geomechanical model test of group excavation, the stability of group excavation and the feasibility of excavation scheme are demonstrated. Through the comparison between the results of field monitoring and theoretical research, the regularities of large-scale group-hole excavation in shale interbedded rock mass are revealed.