摘要
采用卡丘金公式和Janbu条分法分别对洋溪水利枢纽库区内的防护点进行坍岸范围预测。通过对比分析两种方法计算的结果,认为卡丘金方法可用在库区调查研究的前期,能大概通过野外收集的资料初步判断坍岸的范围,对其坍岸的严重程度作进一步调查研究,较为方便快捷。Janbu条分法可在卡丘金计算宽度的基础上,进一步细化坍岸的类型及其坍岸精度的量化,计算量较大,但更符合工程实际情况。
For each protection site within the reservoir area of Yangxi Hydraulic Complex, the range of bank col- lapse was calculated by Kachugin formula and Janbu slice method respectively. The calculating results out of two methods were compared, based on which it is concluded that Kaehugin formula shall be used at the preparatory stage of reservoir area investigation because it permits rather convenient and rapid preliminary estimate of collapse range with the information collected at site, before further investigation of collapse extent is conducted. On the basis of the calculating width out of Kachugin method, Janbu slice method permits further refining of collapse type and quantization of collapse accuracy, requires great calculating work but has results more in conformity with the actual conditions of project.
出处
《广西水利水电》
2016年第5期28-31,共4页
Guangxi Water Resources & Hydropower Engineering
关键词
卡丘金
Janbu条分法
坍岸
洋溪水利枢纽
Kachugin formula
Janbu slice method
bank collapse
Yangxi Hydraulic Complex
