混合土的渗透试验综述

Summary of permeability test of mixed soil

混合土是工程中的热点话题,而渗透系数是研究水理性质的重要参数,由混合土的制样入手,通过理论推导简化公式,并依据实际渗透试验流程,提出混合土的渗透试验的简化方法与注意事项,结论如下:针对预配置混合土的含水率与纯土样含水率的大小关系,相应提出了原状配置与烘干配置的计算公式。并根据渗透试验可能出现的漏水、读数问题,以及试验步骤中的计算、具体操作,陈述了一些见解与思考,从而为进行渗透试验的学者们提供操作与计算方面的便利。

Mixed soil is a hot topic in engineering,and permeability coefficient is an important parameter for the study of hydraulic properties.This article starts with sample preparation of mixed soil,derives simplified formulas through theory,and proposes the permeability test of mixed soil based on the actual permeability test process.Simplifying the method and precautions,the conclusion is as follows:according to the relationship between the moisture content of the pre-configured mixed soil and the moisture content of the pure soil sample,the calculation formulas of the original configuration and the drying configuration are proposed accordingly.And based on the possible water leakage and reading problems in the penetration test,as well as the calculations and specific operations in the test steps,I stated my own opinions and thoughts,so as to provide convenience in operation and calculation for scholars conducting penetration tests.