摘要
土质地基上水闸基底渗透压力计算对水闸的防渗排水设计较为关键,改进阻力系数法作为一种近似计算方法,由于精度较好已被推广采用,但地下轮廓复杂时计算过程十分繁琐,技术规范要求复杂土质地基上的重要水闸采用数值计算法求解。结合工程实例,采用Rocsciencee公司研发的Slide有限元软件对闸基渗流问题进行计算,并与改进阻力系数法和Autobank有限元分析法的计算成果进行对比,相同工况下3种计算结果表明:Slide软件可较好的解决水闸渗流计算问题,成果可靠、计算高效;数值计算法得到的渗透坡降较改进阻力系数法偏安全,获得的渗流要素更为全面、直观。
The calculation of seepage pressure of the sluice basement on soil foundation is critical to the anti-seepage and drainage design of the sluice.The improved resistance coefficient method as an approximate calculation method has been popularized due to its better accuracy,but the calculation process is very cumbersome when the underground contour is complex.The specification requires that the important sluices on complex soil foundations need to be solved by numerical calculation.Based on an engineering example,the Slide finite element software developed by Rocsciencee is used to calculate the seepage of the sluice foundation,and the results are compared with the calculation results of the improved resistance coefficient method and the Autobank finite element analysis method.The three calculation results under the same operation conditions show that,(a)the Slide software can better solve the problem of sluice seepage calculation,and its results are reliable and the calculation is efficient;and(b)the seepage slope obtained by the numerical calculation method is safer than the improved resistance coefficient method,and the obtained seepage elements are more comprehensive and intuitive.
作者
李炳阳
杨旭亮
LI Bingyang;YANG Xuliang(PowerChina Beijing Engineering Corporation Limited,Beijing 100024,China;School of Civil Engineering and Transportation,Qinghai Minzu University,Xining 810007,Qinghai,China)
出处
《水力发电》
CAS
2022年第1期58-62,共5页
Water Power
基金
青海省基础研究计划项目(2020-ZJ-756)
青海民族大学2020年度智库研究项目(2020XJZK08)。
