基于离心机试验原理,针对未知滑面边坡,提出了采用在坡体埋置钢管并两端设置配重的方式,在岩土工程多功能试验装置上进行复杂边坡稳定性评价模型试验方法。首先基于数值分析方法,对边坡加入刚性介质后对边坡滑面及稳定性的影响进行了分析,并与不加钢管边坡破坏形态与稳定性进行对比分析,说明了试验方案的可行性。最后,结合工程实例,进行了室内模型试验。试验结果表明:在边坡滑移面位置未知的情况下,采用钢管加配重的试验方案,可以准确模拟边坡的破坏形态,计算原型边坡的安全系数。提出的方法对工程边坡模型试验具有参考价值。 Based on the principle of centrifuge test, aiming at the unknown slippery slopes, a model test method of complex slope stability evaluation is put forward on the multi-functional test device for geotechnical engineering . Firstly, based on the numerical analysis method, the influence of the rigid medium on the slip surface and the stability of the slope is analyzed, and the failure morphology and stability of the slope without the steel pipe are compared and analyzed. The feasibility of the test scheme is illustrated . Finally, with the engineering example, the indoor model test was carried out. The experimental results show that under the unknown position of the slip surface, the failure mode of the slope can be accurately simulated and the safety factor of the prototype slope can be calculated by the test program of steel pipe plus counterweight. The proposed method has a reference value for engineering slope model test.