摘要
为了提高含沙量测验的效率,对室温条件下（15-25℃）的比重瓶加模型澄清水与比重瓶加蒸馏水的重量分别进行了测验,通过绘制散点图得到模型澄清水密度与蒸馏水密度之比与水温呈现曲线函数关系,基于澄清水密度的这种规律,作者对彭世想推导出来的比重瓶加清水重计算公式进行了改进,以后在实际工作中只需称取在测验含沙量水样温度范围内最低温度、中值温度和最高温度3个温度条件下瓶加澄清水与瓶加蒸馏水的重量,就可计算出任一温度对应的比重瓶加澄清水重,大大提升了含沙量测验的效率,具有较好的实用性。
To improve the efficiency of sediment concentration measurement, the weight of pycnometer with model clear water and pycnometer with distilled water is weighed at room temperature（ 15 degrees Celsius）. A curve function relationship between density ratio of model clear water to distilled water and water temperature is obtained by drawing a scatter diagram. According to this relationship, the calculation formula of pycnometer with clear water＇s weight derived by Peng Shixiang is improved in this paper. In the later sediment concentration measurement, only the weight of pycnometer with clear water and pycnometer with distilled water should be measured at the lowest temperature, the median temperature and the highest temperature of sediment concentration water samples temperature ranges. And the weight of pycnometer with clear water at any temperature can be calculated by the improved formula, which will enhance the efficiency of sediment concentration measurement greatly and have perfect practicability as well.
作者
吴彰松
张根广
梁宗祥
史志鹏
WU Zhang-song ZHANG Gen-guang LIANG Zong-xiang SHI Zhi-peng(College of Water Resources and Architectural Engineering, Northwest Agricultural and Forestry University, Yangling 712100, Shaanxi Province, China)
出处
《中国农村水利水电》
北大核心
2016年第11期27-30,共4页
China Rural Water and Hydropower
基金
国家自然科学基金资助项目(51279170)
关键词
比重瓶法
含沙量测验
澄清水密度
曲线函数关系
温度
pycnometer method
sediment concentration measurement
clear water density
curve function relationship
temperature
