论文部分内容阅读
一、前言测定土的滲透系数,是土工试驗室不可缺少的一项试驗工作。目前许多试驗室对子粘性土滲透系数的测定,—般都利用以普通压密仪参照阿别列夫所设计的滲透装置改装的滲透仪,并按他所拟定的试驗方法来进行。这种仪器装置具有—些独特的优点(因为这里不是讨论这一问题,故不去谈它)。虽然在测定过程中水头保持不变,并可直接测出滲透水量,因此,利用它进行试驗时所得结果的整理工作也较简單,但是它的结果计算工作还嫌麻烦,尤其是对计算所得数值的定位。这项工作常易搞错,一错至少是10倍;为了避免错误,常常要进行详细的复算,这就要增加了结果整理所化费的时间,大大的降低了试验结果的整理效率。为了能够迅速准确地提出土的分析结果来,我们研究制出一把计算滲透系数用的専门计算尺。经实
First, the preface Determination of soil permeability coefficient, is an indispensable geotechnical laboratory test work. At present, many laboratories measure the permeability coefficient of sub-clayey soil, and generally use the permeameter converted by an ordinary pressure-intensifier with reference to the infiltration device designed by Abe-Lev, according to the test method that he has drawn up. This kind of instrumentation has some unique advantages (because it is not discussed here, so I will not talk about it). Although the water head remains constant during the measurement and the amount of permeate can be measured directly, the finishing work on the results obtained using it is simpler, but its calculation of the results is still troublesome, especially for the calculated The value of the location. This work is often mistakes, a mistake is at least 10 times; in order to avoid errors, often to conduct a detailed review, which will increase the time required to organize the results, greatly reducing the efficiency of the finishing test results. In order to be able to quickly and accurately put forward the results of soil analysis, we developed a formula for calculating the permeability coefficient of the professional slide rule. The real