摘要
目前我国水利建设蓬勃发展,多个超高土石坝正在建设或者即将开工。高土石坝在填筑过程中,心墙内可能产生较高的超静孔隙水压力,孔隙水压力对大坝的安全和稳定有着十分重要的影响。对一300m高的假想土石坝进行了二维固结有限元计算,分析了施工期和竣工后坝体内孔隙水压力的发生、发展与消散过程以及应力、应变的变化。并对产生的孔压大小与上坝土料特性之间的关系进行了简单的讨论。
With the rapid development of the water conservancy construction,quite a few great earth and rock-fill embankment dams higher than 200-m are now being built or are to be built in China.High excess pore pressure will rise in the core of the high earth dam during the construction period,which influences the stability and safety of the project.A 300-m high fictitious simple earth embankment is analyzed with the 2D consolidation FEM program to find the producing and dissipation procedure of the excess pore pressure. The relation between excess pore pressure and the characteristics of clay soil is also discussed in this paper.
出处
《国防交通工程与技术》
2005年第2期22-24,27,共4页
Traffic Engineering and Technology for National Defence
