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中文摘要：
导出了广义Hoek—Brown强度准则的弹塑性矩阵计算方法，并将其用于一岩质开挖边坡施工过程模拟。同时，利用Hoek所提出的参数等效化方法对岩质开挖边坡的稳定性进行强度折减分析，揭示了开挖施工过程中边坡临界失稳模式的演变、发展过程。分析结果表明，边坡的应力-应变场、位移场、边坡的稳定性及其临界失稳模式的演变过程与采用传统的Molar—Coulomb强度准则的发展过程是一致的，但用Hoek所提出的等效Mohr-Coulomb强度参数可能会高估边坡的稳定性。
英文摘要：
The formula of elastoplastic matrix for the generalized Hoek-Brown failure criterion used in the finite element analysis, has been deduced. And then, the criterion is used for simulating the construction stages of a cutting rock slope in the elastoplastic finite element analysis. Meanwhile, the strength reduction analysis is also executed by using the equivalent Mohr-Coulomb parameters in order to find out the evolvement of critical failure model during the construction. It is shown that the development rules of the stress and strain, the displacement, the stability and the critical slip during the excavating are coincident with the results gained by using the traditional Mohr-Coulomb failure criterion. However, the results also show that using the equivalent Mohr-Coulomb parameters gained by the Hoek＇s formula （2002）, may overestimate the stability of slope.
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