水利水电技术2018，Vol.49Issue(1)：7-15,9.DOI:10.13928/j.cnki.wrahe.2018.01.002
高土石坝试验技术与安全评价理论及应用
Experimental techniques and safety assessment theories for high earth-rockfill dam and relevant applications
摘要
Abstract
As China is the country with the largest amount of high earth-rockfill dams in the world,and then the construction of high earth-rockfill dam and its long-term safety guarantee under complicated construction condition and poor operation environment are faced with severe technical challenges.The study results and their applications within the fields related to the technique for the experiment of coarse granular materials,the in-situ testing technique for the overburden of dam foundation,the technique for the model experiment with centrifuge shaking table for high earth-rockfill dam,the centrifugal model test technique for failure of high earth-rockfill dam,the safety assessment and disaster prediction theories for high earth-rockfill dam,etc.in recent years are briefly introduced herein.A test equipment for mechanical properties of coarse-grained materials in high earth rock dams has been developed.Based on revealing the evolution law of mechanical properties of coarse aggregate and the influence mechanism on the deformation of high earth rockfill dam under complex load and changing environment,a constitutive theory system for coarse aggregate has been constructed.The testing technology and analysis method of mechanical properties of deep overburden layer were developed,which solved the technical problems that the mechanical properties of the deep structural sand gravel overburden could not be accurately measured for many years.A technology and analysis method for earthquake damage catastrophe and dam break test of high earth rockfill dam is established,in which Physical model test is used to predict the seismic residual deformation and development rule of high earth rockfill dam quantitatively.The seismic safety evaluation standard of high earth rock dam and the calculation method of ultimate aseismic capacity are put forward.The research results have been successfully applied in a number of high earth rockfill dam,such as Zipingpu,Shuibuya,Jilintai,Changheba,Nuozhadu,Rumei,Dashixia,Altash and Bakun Hydropower Station in Malaysia,part of which have been incorporated in the relevant design specifications and national and trade standards.关键词
高土石坝/试验技术/安全评价理论/应用Key words
high earth-rockfill dam/experimental technique/safety assessment theory/application分类
建筑与水利引用本文复制引用
陈生水,程展林,孔宪京..高土石坝试验技术与安全评价理论及应用[J].水利水电技术,2018,49(1):7-15,9.基金项目
国家重点研发计划重点专项(2017YFC0404806) （2017YFC0404806）
国家自然科学基金项目(51379130,51539006) （51379130,51539006）
