论文部分内容阅读
一、基本土性试验仪器土的粒径组成是土的最基本的性质,过去常用比重计来加以测定,试验成果的计算显得繁琐.近已采用列线图作图求解以及上海民用建筑设计院采用的粒径定点片简化计算法,但试验周期仍较长,中科院成都地理研究所采用特种吸管仪作粘性土粒度分析,在计算各级粒径的百分比含量时,可以不用土粒比重和试样干土重,大大缩短了试验时间并简化了计算程序。
First, the basic soil test equipment Soil particle size composition of the soil is the most basic nature of the past, often used to determine the hydrometer, the calculation of the test results appear cumbersome.Almost by using the nomogram to solve and the Shanghai Civil Design Institute Using the particle size of the fixed-point piece of simplified calculation method, but the test period is still longer, the Chengdu Institute of Geography, Chinese Academy of Sciences using special pipette for clay particle size analysis, the calculation of the percentage content of the particle size at all levels, Dry soil heavy, greatly shortening the test time and simplify the calculation process.