岩体单位弹性抗力系数的确定研究

摘要

本文从单位弹性抗力系数k0的推导过程研究，提出确定单位弹性抗力系数k0的弹塑性公式；提出公式中修正系数α的确定方法；α可采用岩体的横波速与纵波速之比确定。通过工程实践计算检验，弹塑性理论法和岩体坚固性系数法确定的单位弹性抗力系数f0与规范或规程提供的经验值悬殊不大，均符合工程实际。%From the study of the derivation process of the coefficient k0 of unit elastic resistance, this paper puts forward the elastoplastic formula for determining the coefficient k0 of unit elastic resistance, and the determination method of correction factor α in the formula.αcan be determined by the ratio of transverse wave and longitudinal wave of the rock mass. Through the calculation of construction practice, the difference between coefficient f0 of unit elastic resistance determined by the elastic-plastic theory and the sturdiness of rock mass coefficient and the experience value provided by the rules or regulations is small, they are in accordance with engineering practice.