一种新的节理本构模型及几种新的滑坡稳定系数计算方法

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Abstract A new joint constitutive model is proposed and its relating parameters are calibrated based on analyzing progressed deformation of landslide. The strain space state equation is proposed by use of critical stress characteristics；the relationship between Mohr-Coulomb criterion and the proposed critical strain state equation is established. The advantage and shortage are analyzed for the conventional calculation of stability coefficient of landslides；several new calculating methods of safety factor of landslides are proposed，such as：stability factor calculation based on progressive deformation，stability factor calculation by strength deduction for part sliding block，the calculating method of comprehensive sliding force and resistance force of landslide，the stability coefficient calculation of maximum main sliding force of landslide，and stability factor calculation for each sliding block of landslide. The stability coefficient of the comprehensive sliding-resistance force and the maximum main stress are fit for describing the landslide state. The new joint constitutive model and calculating methods of landslide are useful for describing the landslide state.

Key words： slope engineering new joint constitutive model calibration of model parameters strain space calculated methods of stability factor landslide

Received: 03 December 2012

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https://rockmech.whrsm.ac.cn/EN/Y2013/V32/I12/2431

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