Gravel materials are widely used in dam engineering in western China due to their excellent engineering characteristics such as high compaction density, high shear strength and strong water permeability. The compaction standard of gravel materials is evaluated by the relative density index. Therefore, after a reasonable compaction standard is determined, the next most critical link is the control of construction filling quality. Based on the results of field rolling tests, this paper analyzes the basic influence laws of gravel content, paving thickness, rolling times and water content on the compaction dry density and relative density of gravel materials, and studies the basic compaction characteristics of gravel materials, and determines the construction compaction parameters based on satisfying the design compaction standard. By controlling the gradation, rolling parameters and water content of dam construction gravel materials, the filling quality of dam construction can meet the design compaction standard, so as to ensure the safety and stability of dams.

砾石材料由于具有压实密度高、抗剪强度高、透水性强等优良的工程特性，在我国西部大坝工程中得到广泛应用。砾石材料的压实标准是通过相对密度指数来评价的。因此，在确定了合理的压实标准后，接下来最关键的环节就是对施工填方质量的控制。本文根据现场碾压试验结果，分析了砾石含量、摊铺厚度、碾压次数和含水量对砾石材料压实干密度和相对密度的基本影响规律，研究了砾石材料的基本压实特性，并在满足设计压实标准的基础上确定施工压实参数。