摘要
哈达山水利枢纽工程土坝及右岸的主要地质问题是坝基渗漏。采用三维有限元法模拟枢纽区渗流场空间分布特征,对右岸坝基(坝肩)的8种防渗方案进行计算分析。在正常蓄水工况下,依据不同防渗方案渗流场的变化规律,确定防渗处理范围,提出了满足要求的优化方案。建议右坝肩防渗墙自右坝端(桩号2+432.4)起延伸80 m,以满足渗透稳定和渗流量的要求。
The foundation seepage and seepage stability is the main geological problem of the Hadashan Water Project earth dam and the right bank.The seepage fields under eight impervious schemes for right dam foundation and abutment were simulated by 3-D finite element method in order to determine the scope of seepage treatment and the optimization scheme for meeting the requirements of the by-pass seepage stability and seepage control.Normal reservoir water conditions are considered in the calculation.A cutoff wall with an extending length of 80 m from the right dam end(mileage is 2+432.4) can meet the requirements on by-pass seepage stability and seepage control.
出处
《水力发电》
北大核心
2010年第8期28-30,89,共4页
Water Power
基金
河海大学水文水资源与水利工程科学国家重点实验室专项基金(2009586012)
