摘要
为了研究河流冲刷作用下谢家坝稳定性变化规律以及糯米灰浆对堤岸稳定性影响,将河床冲刷和堤岸侵蚀后退计算理论相结合,通过对不同筑坝材料以及是否考虑河流冲刷作用等工况进行数值模拟分析。研究结果表明:(1)无论水位上升还是下降,堤岸横向冲刷距离均大于河床纵向冲刷距离;(2)河流由于冲刷作用导致堤岸变高变陡,加速了谢家坝失稳;(3)糯米灰浆作为筑堤材料能够提高堤岸稳定性,其安全系数是素土的1.29~1.49倍。
In order to study the stability change rule of Xiejia Dam under river scouring and the influence of mortar mixed with glutinous rice on the stability of the beach-wall,the calculation theory of river bed scouring and beach-wall erosion retreat is combined to conduct numerical simulation analysis on different beach-wall materials and whether river scouring is considered or not.The results show that:(1)No matter the water level rises or falls,the transverse scour distance of the beach-wall is greater than the longitudinal scour distance of the river bed.(2)The beach-wall becomes higher and steeper due to scouring,which accelerates beach-wall destabilization.(3)The mortar mixed with glutinous rice can improve the stability of beach-wall,and its safety factor is 1.29~1.49 times higher than that of plain soil.
作者
温永福
王凤春
韩超
张敬晓
李晶晶
王赫
WEN Yong-fu;WANG Feng-chun;HAN Chao;ZHANG Jing-xiao;LI Jing-jing;WANG He(Department of Hydralic Engineering,Hebei University of Water Resources and Electric Engineering,Cangzhou,061001,China;Hebei Water Supply Co.,Ltd.,050000,Shijiazhuang,Hebei,China)
出处
《河北水利电力学院学报》
2023年第2期63-69,共7页
Journal of Hebei University Of Water Resources And Electric Engineering
基金
河北水利电力学院省属高等学校基本科研业务费研究项目(SYKY2113)
大学生创新创业训练计划项目(202110085009)。
关键词
谢家坝
冲刷作用
糯米灰浆
数值模拟
安全系数
Xiejia Dam
scour action
glutinous rice mortar
numerical simulation
safety factor
