In this paper, for the joint rock mass with medial size and in-group crack, parameter identification of its geometrical damage model is studied by back analysis of in-situ measured displacement.
对包含中等尺寸的成组分布裂隙的岩体，采用岩体几何损伤本构模型，用监测位移反馈分析法同时辨识岩体弹性模量、地应力及损伤参数。
Simulation results show that the combined indexes based on natural frequencies and mode displacements are sensitive to the joint damage and effective for the(identification) of joint damage.
研究表明，虽然空间索杆结构的动力性能较为复杂，但基于结构固有频率和模态位移的组合指标对节点损伤仍较为敏感，利用它们进行节点损伤识别是有效的。
Based on the theory of displacement back analysis and the theory of geometrical damage, identification of damage parameters in joint rock mass is studied in this paper.
基于位移反分析理论及几何损伤理论，对巷道裂隙岩体的损伤参数进行了辨识。
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