摘要
容重在泥石流防治工程设计中处于重要地位,如何有效获取准确的容重值十分关键。对近年来甘肃陇南地区常用的几种计算泥石流容重的方法进行汇总,选择典型泥石流沟谷水眼沟、马家沟进行试用,各种方法计算结果趋于一致,说明这些方法在该地区具有较强的适用性。多种方法计算认为:选取泥石流容重计算方法时,首先应做出较为准确的宏观判别结果,有效地指导计算方法的使用;要采用至少3种以上的方法进行计算后对比确定泥石流容重;在有条件采用现场试验的地方,要优先使用现场调查试验法,然后采用地区经验公式或相关统计模型进行计算分析对比。
the load tolerance is very important in the design of debris flow prevention and control project, so it is very important to obtain accurate load tolerance value effectively. In recent years, several types of methods commonly used in Gansu longnan region were summarized, and the typical mudslide gully, Shuiyangou and Majiagou were selected for trial calculation. A variety of methods suggest that when using the method, we should first make a more accurate macroscopic discrimination result to effectively guide the use of the calculation method;At least three kinds of methods are used to determine the weight of mudstone flow capacity. In places where field tests are suitable, the field investigation test method should be recommended as a priority, and then the calculation and analysis should be carried out using the regional experience formula or relevant statistical model.
作者
张永军
李松
ZHANG Yong-jun;LI Song(Gansu Institute of Geological Environment Monitoring,Lanzhou 730000,Chirui;Key Laboratory of Groundwater Engineering and Geothermal Resources of Gansu Province,Lanzhou 730000,China;The Second institute of Geology and Minerals Exploration,Gansu Provincial Bureau of Geology and Minerals Exploration and Development,Lanzhou 730000,China)
出处
《甘肃地质》
2020年第3期84-89,共6页
Gansu Geology
基金
国土资源部公益性行业科研专项“建设生态安全屏障多地貌典型区地质灾害防治示范”(201511053)。
关键词
陇南地区
泥石流
容重
确定方法
Longnan area
debris flow
bulk density
method of determination
