摘要
总结了胶凝砂砾石材料力学特性、胶凝砂砾石坝数值分析方法、坝体基本剖面设计原则,以及其在温度变化及冻融影响下的耐久性等,介绍了胶凝砂砾石材料本构模型研究、力学模型试验及坝体剖面设计研究主要成果。胶凝砂砾石材料受胶凝材料用量、含砂率、水胶比、骨料级配、围压及龄期等多种因素影响,国内外学者通过单轴或三轴试验取得的成果缺少系统性和相关性。只有在考虑各种影响因素的情况下,通过全面系统的拉、压试验和三轴剪切试验,才能真正了解胶凝砂砾石材料的力学特性及强度变化规律。
The mechanical properties of CSG material,numerical analysis methods and the design principles of the basic profile of the damwere summarized,and the durability under the influence of temperature change and freezing thawing was also analyzed. In this paper,theconstitutive model of CSG material,the model test of the geo mechanical model and the design of the dam section were introduced. Theamount of cementitious materials,sand ratio,water binder ratio,aggregate gradation,confining pressure and age and other factors affect thecharacteristics of CSG material. Scholars at home and abroad through uniaxial or triaxial test results lack of systematic and correlation. Onlyunder the consideration of various factors,through the comprehensive and systematic tension,compression test and three axis shear test,canwe really understand the mechanical properties and strength change law of the CSG material.
出处
《人民黄河》
CAS
北大核心
2016年第7期83-85,99,共4页
Yellow River
基金
水利部公益性行业科研专项(201301025)
