基于无机胶粘岩土的抗渗性能实验研究

Experimental study on the impermeability performance of inorganic adhesive rock and soil

为更好地剖析岩土渗透性能,以无机胶粘岩土为研究对象,提出相应的渗透性评价指标测定方法,测试了9个试样pH值,测定了试样的金属元素含量,开展抗渗实验,分析X射线衍射的成分。实验结果表明,岩土pH值普遍低于7,呈明显酸性,在提升岩土抗渗性能方面具有重要作用;岩土金属元素含量的变化,对岩土抗渗性能影响微乎其微;岩土渗透系数与抗渗标号之间存在负相关关系;氟硅酸钠的改变,会增加对岩土抗渗性能的影响程度。研究结果为相关人员提供有效的借鉴和参考。

In order to better analyze the permeability performance of rock and soil,inorganic adhesive rock and soil was taken as the research object,and the corresponding permeability evaluation index measurement method was proposed.The pH values of 24 samples were tested,the metal element content of the samples was determined,impermeability performance experiments were carried out,and the components of X-ray diffraction were analyzed.The experimental results showed that the pH value of rock and soil was generally lower than 7,showing an obvious acidity,which played an important role in improving the impermeability performance of rock and soil.The change of metal element content in rock and soil had minimal impact on its impermeability performance.There was a negative correlation between the permeability coefficient of rock and soil and the impermeability grade.The change of sodium fluorosilicate increased the degree of impact on the impermeability performance of rock and soil.The research results provide effective reference and reference for relevant personnel.