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- 程序介绍 ( Program Introduction)
To identify grain size characteristics of soils, grain size distribution curve is developed. First, sieve analysis is conducted. A variety of sieves with different openings are stacked, with the largest opening sieve on the top and smaller on the lower sections. When a relatively large percent passing through the sieve with 0.075mm opening (e.g., more than 10% as a guideline) is obtained from the sieve analysis, a hydrometer analysis is conducted.
This program process the raw data from sieve analysis and hydrometer analysis to get the grain size distribution curve and other parameters like D10, D30, D50, D60, Cu and Cc.
D10: effective grain size, the diameter of the soil particles for which 10% of the particles are finer.
D30: the diameter of the soil particles for which 30% of the particles are finer.
D50: mean grain size, the diameter of the soil particles for which 50% of the particles are finer.
D60: the diameter of the soil particles for which 60% of the particles are finer.
Cu: coefficient of uniformity, defined as Cu = D60/D10.
Cc: coefficient of curvature (other terms used are the coefficient of gradation and the coefficient of concavity) defined as Cc = D30*D30/ D60/ D10 .
The coefficient of uniformity and the coefficient of gradation affect the soil packing arrangement.
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崔博士您好，可以分享一下你的程序吗？
已发送。
崔博士,您好,小程序麻烦分享一下，我的邮箱xiaolei_052@sina.com,谢谢。
你好，我的邮箱zyc19920818@126.com
谢谢！！
崔博士，学习一下!
崔博士厉害，
已发送到你的邮箱
崔博，麻烦分享一个
已发送
正好需要这个，麻烦崔博士分享一下~感激不尽~wul194218@gmail.com
gmail发不过去，换个邮箱。
请问这个软件在mac上可以用吗？
不行
HI can I have this tool for the grain size distribution.
崔博士，您好！看了您的东东，很厉害！麻烦给发一个看看。
已发送
崔博士，我需要这个软件
麻烦崔博分享一下这个软件，谢谢
已经发送
谢谢，麻烦给我发送一份，学习一下。
麻烦崔博士分享下这个有用的程序！特此感谢！
已经发送了
崔博士 您好 可以发给我一份么 谢谢
已经发送。
崔博士您好，能否发一份颗粒级配分布曲线小程序，感激！gaoli@sqc.edu.cn
已经发送
崔博士，你好，能否将这个软件发一份给我，非常感谢。
崔博士，我又来了，方便给我发一份吗，765243444@qq.con
崔博士，麻烦给我邮箱发一份吧，感激不尽。
您好，想用一下您的软件，能发给我一份吗？感激不尽！
已发送
Hi,Dr Cui,
The program is very useful.
Thank you for your works
the program had been sent to your email
I am also working on particle size distribution. Thanks so much!
The program was sent to your email.
崔博士您好，我的邮箱：15710061307@163.com
已经发送到你的邮箱。