本文根据某高土石坝心墙料进行的纯土料和不同级配下不同碎石掺量的土、石混合料高压三轴固结排水剪切成果，阐述了混合料的压实特性，高压下的强度特性以及非线性模型参数性能，认为在筑坝心墙上料中掺入合理级配的适量碎石，能提高该坝的抗剪强度，增加其稳定性，有利于土坝变形及强度性能的改善． In this paper, based on a high earth and rockfill dam core material of pure soil and different levels with different gravel content of soil and stone mixture of high pressure triaxial consolidation drainage shear results elaborated the compaction characteristics of the mixture, high pressure Under the strength characteristics and nonlinear model parameters performance, it is considered that adding appropriate amount of gravel into the dams on the core wall of dams can improve the shear strength and stability of the dams, which is in favor of deformation of the earth dam and Improvements in strength properties.