摘要
基于大量的实地观测数据和数量化理论，根据围岩的完整性评价指标，并考虑岩层处的地下水的状况以及应力场，提出了隧道施工阶段围岩分级的定量评定方法，建立了围岩类别判定系数的确定方法，从而导出了隧道围岩类别的判定标准。
In this paper the evaluation method for surrounding rocks of tunnel on tunnelling is proposed.The theory is based on more than 223 numerical data which are got from field observation,and then the standard of evaluation for surrounding rocks has been established.
关键词
隧道工程
围岩
围岩分级
定量评定法
tunnel engineering,surrounding rocks,rock classification,quantitative evaluation
