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岩体的开挖改变了岩体的边界条件,扰动了岩体的原始应力场,并使岩体产生变形。岩体的这种变形综合地反映了岩体的结构和地质构造环境,变形的量值及其变化规律直观地反映了岩体的稳定性。量测分析岩体的变形对监视预测岩体的失稳和不支护安全运营的期限、确定岩体加固处理的方法等都有重要的意义。因此,岩体变形的量测在地下洞室、边坡等岩体工程的勘探、施工和运营中都广泛地开展着。
Excavation of rock mass changes the boundary conditions of rock mass, disturbing the original stress field of rock mass and deforming the rock mass. The deformation of the rock mass comprehensively reflects the structure and geological tectonic environment of the rock mass. The deformation magnitude and its variation law intuitively reflect the stability of the rock mass. The analysis of the deformation of rock mass is of great significance for monitoring and predicting the failure of rock mass and the unsupported safe operation period and for determining the method of rock mass reinforcement treatment. Therefore, the measurement of deformation of rock mass is widely carried out in the exploration, construction and operation of rock mass engineering such as underground caverns and slopes.