随着我国水利工程的快速发展，心墙土石坝常面临高水头、高应力状态，因而容易产 生变形与稳定问题，进而对心墙材料的防渗性能和压实效果提出了挑战。本书通过室内试 验、现场足尺试验、理论分析和数值模拟等手段，对砾石土的防渗特性和压实机理进行了 系统研究。通过深入分析砾石土的物理力学性质、级配设计、压实特性等，探索砾石土在 高水头、高应力条件下的表现及其优化途径，力求为大坝设计和施工提供借鉴与参考。

周怡，博士，讲师/高级工程师。毕业于中南大学地质工程专业,获工学博士学位，现工 作于湖南城市学院土木工程学院，主要从事岩土工程、工程地质环境与灾害领域的教学与 研究工作。主持省厅级课题 4 项，发表学术论文多篇，获授权实用新型专利 1 项，参编教 材 1部。(Zhou Yi, Ph.D., Lecturer/Senior Engineer. Graduated with a doctoral degree in Geological Engineering from Central South University and is currently working at the School of Civil Engineering, Hunan City University,mainly engaged in teaching and research work in geotechnical engineering, engineering geology, environmental geology, and disaster. She has led four provincial and departmental research projects, published multiple academic papers, obtained one authorized utility model patent, and contributed to one textbook as a co-author.)