微波炉法快速测试土的含水率

Research and Application of Quick Measurement of Soil's Water Content with Microwave Oven Method

根据土工试验的基本原理,采用微波炉和电热干燥箱两种不同仪器,进行两种不同试验方法的比较,完成了30组粘性土试样和30组砂性土试样含水率的测试。通过统计对比性试验结果分析,显示微波炉法测定土的含水率的精度与电热干燥箱法几乎完全一致。通过工程项目个案实际应用也取得了良好效果,实践证明,微波炉法具有试验周期短、便捷、准确度较高等特点,是一种测定土的含水率的优化方法。

According to the basic theory of the soil mechanics and the comparison ot two ctltterent experimental methods with different test instruments-electric heat drying cabinet and microwave oven, the water content of 30 groups of cohesive soil and 30 groups of cohsionless soil are tested. The test result comparison shows that the accuracy standard of the soil＇s water content measured with these two different test instruments is consentaneous. And the application of the case study of the engineering report is also good. It proves that this new method of using microwave oven increases the efficiency and it has some merits such as short periodicity, convenience and higher accuracy, so it is a new and useful way to measure the soil＇s water content.