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中文摘要：
以水麻高速公路工程为依托，根据室内试验获得的岩堆体物理力学参数制作不同典型断面形式的离心模型，模拟岩堆路基在自重力及汽车荷载作用下的沉降变形，研究了不同组成、不同高度的典型岩堆体的沉降变形规律。采用有限元法进行模拟，从理论上分析不同类型典型断面形式下的沉降变形及应力应变分布特征。针对天然岩堆不能满足路基要求的情况下，对不同处治方案进行有限元模拟与离心模型试验，分析得出最佳处理方案。在模型试验和数值分析成果的基础上，通过对岩堆路基变形及稳定性的控制方法的研究，以石灰土换填为例，分析了换填时的施工控制深度，提出了岩堆路基开挖换填深度的控制指标。
英文摘要：
Based on the Shuifu-Maliuwan highway project, the physical and mechanical parameters are gained by field tests and centrifugal models with different typical sections are established. The settlement deformation of rock heap subgrade is analyzed under the gravity and automobile load. The simulation for the settlement of different types of rock heap subgrade is finished by use of the finite element method. If the natural rock heap subgrade is not effective, it must be dealt with. Through the analysis of the simulation of different disposal methods, the best disposal project is proposed. Based on the results of the model tests and numerical simulation, the control methods of the settlement and stability of the rock heap subgrade are studied. Taking the lime soil filling for an ensample, the construction control depth is analyzed, and the control index of replacement depth for the rock heap subgrade is put forward.
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