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根据地下水离子质量浓度分布的特点,以改变土体强度为目的,对采取的水样和土样进行室内水土化学试验和物理力学试验,并从土水化学的力学效应对土体强度指标的影响效应进行统计分析。研究结果表明:地下水中的Ca2+、HCO 3-、K+和Na+等离子浓度对土体的黏聚力有明显的减弱效应,而Cl-含量对其影响较弱;离子质量浓度对内摩擦角和变形模量的影响弱于对黏聚力的影响,这为增加土体结构物稳定性措施提供一种借鉴。
According to the characteristics of groundwater ion concentration distribution and the purpose of changing the soil strength, indoor water and soil chemical tests and physical and mechanical tests were carried out on the water samples and soil samples taken from. The influence of the mechanical effects of soil-water chemistry on soil strength indices Effect of statistical analysis. The results show that the plasma concentration of Ca2 +, HCO 3-, K + and Na + in groundwater has obvious weakening effect on the cohesion of soil, but the effect of Cl- content is weak. The influence of ion mass concentration on internal friction angle and deformation The effect of modulus is weaker than that of cohesion, which provides a reference for the measures to increase the stability of soil structure.