TBM施工隧道岩石耐磨性与力学强度相关性研究

A research on the correlativity between rock abrasion and mechnical strength of TBM construction tunnel

结合TBM施工隧道岩石耐磨性试验和岩石力学强度试验,获得岩石的耐磨值与各力学强度值;采用回归分析方法建立了岩石耐磨性与岩石各力学强度指标之间的相关关系数学模型。研究结果表明,岩石耐磨值与抗压强度、抗拉强度、粘聚力、点荷载强度呈指数函数关系,与内摩擦角呈对数函数关系,两者之间呈正相关关系。

Combined abrasion and mechanical strength experiments of tunnel rock mass with TBM construction technology,abrasion values and mechanical strength values of rock are obtained. The correlative model between abrasion and mechanical strength is builted by regression analysis method. The research results indicate that the compressive strength,tensile strength,cohesion and point load strength are in exponential relationship with abrasion of rock,and the internal friction angle of rock is in logarithmic function relationship with abrasion. The abrasion of rock has a positive correlation with mechanical strength.