摘要
河岸滩的崩塌直接危及堤围的安全 ,作者针对粘性河岸的崩塌问题进行分析和研究 ,根据河岸整体崩塌情况 ,提出了一个切实可行的数学计算模型 ,考虑了河岸可能发生旋转崩塌 (窝崩 )和平面崩塌两种情况 ,并将概率分析的方法运用到崩塌的纵向延伸问题上 ,该模型适用于粘性土河岸及河岸滩的稳定性分析 ,用于北江社段河岸滩的稳定分析计算表明 ,河槽水位、地下水位。
A model for analyzing the stability of riverbank and predicting the dilapidation is proposed. Two probable modes of failure are to be considered including rotational failure and plane failure. The effects of pore water pressure and lateral static pressure on the failure surface are analyzed. Probabilistic approach is applied to predict the river section with potential risk of dilapidation. The model is used to calculate the stability of a river section in the upstream of Zhujiang River. The result shows that the river water level, groundwater level, configuration of riverbank as well as the erosion resistance of soil are main factors affecting the stability of the riverbank.
出处
《水利学报》
EI
CSCD
北大核心
2002年第9期49-54,60,共7页
Journal of Hydraulic Engineering
基金
广东省水利科技基金资助项目 (98-0 9)
关键词
河岸
稳定性
整体崩塌
概率分析
stability of riverbank
dilapidation
failure mode
probabilistic approach
