土附着力试验影响因素研究

Study on Factors Affecting Soil Adhesion Test Results

土的附着力是指土具有的粘附在其他固体材料表面上的能力,其数值大小主要通过试验室内附着力试验测得。室内附着力试验结果受试验条件参数影响,本研究通过改变试验过程中的压板粗糙度、压板压力、加压时间、拉拔速率、压板面积和压板材质,发现在一定范围内,土附着力大小随压板粗糙度、压板压力、加压时间以及拉拔速率的增加而增大,不同材质的压板也会对土附着力产生一定的影响,但是压板面积对土附着力几乎没有影响。基于试验结果,本文也给出了各试验条件参数的推荐值。

Soil adhesion refers to the ability to adhere to the surface of other solid materials,which is mainly measured by laboratory test.The test results are affected by testing conditions.It is found that soil adhesion increases with the increment of press-plate roughness and pressure,pressure time and tensile rate within a certain range.Moreover,soil adhesion is affected by the material quality of press-plate up to a certain extent,and hardly affected by press-plate area.Based on the test results,the recommended values for the parameters of testing conditions are also put forward.