土的不同渗透试验方法应用与研究

Application and Study on Different Permeability Test Method of Soil

渗透试验是工程勘察中一项重要试验,分为室内试验和现场原位试验。该文介绍了室内渗透试验和现场原位渗透试验的理论、适用范围、计算方法,着重研究了室内渗透试验的操作过程、数据处理及试验注意事项。结合工程实践,对三种渗透试验得出的土层渗透系数进行了对比,分析了三种试验结果存在的异同,研究了产生差异的原因。最后提出了一种确定土层渗透系数的方法,为类似的工程提供了一些参考。

Permeability test is an important test of engineering geological investigation,and it divides into laboratory test and field in situ test.The theory,the scope of application and the calculation method of laboratory test and field in situ test are introduced,and the operation process,data processing and the points of attention are also mainly studied.Based on the engineering practice,the soil layers permeability coefficients obtained from three types of permeability tests are compared,the similarities and differences among the three test results are analyzed,and the reasons caused the differences are studied.Finally a method to determine the soil layers permeability coefficient is put forwardd,and it provides some references for the similar engineering projects.