CAJ | 학술논문

土体黏粒含量对土-水特征曲线有重要影响。为了建立描述黏粒含量对土-水特征曲线影响规律的理论模型，本文基于分形理论，建立了质量分维数与黏粒含量的关系式，利用已有试验数据验证了该式的合理性，并从理论上解释了质量分维数随黏粒含量增大的基本规律。在此基础上，结合已有的研究成果，建立了分形模型描述土体黏粒含量对土-水特征曲线影响规律，该模型预测的土-水特征曲线与已有不同土类样本的试验数据吻合较好，从而证明了该模型的有效性。最后，利用该模型同时预测了不同黏粒含量典型土体的土-水特征曲线，阐明了黏粒含量对土-水特征曲线影响的基本规律，即相同吸力条件下，黏粒含量越高，则体积含水率越高。
토체점립함량대토-수특정곡선유중요영향。위료건립묘술점립함량대토-수특정곡선영향규률적이론모형，본문기우분형이론，건립료질량분유수여점립함량적관계식，이용이유시험수거험증료해식적합이성，병종이론상해석료질량분유수수점립함량증대적기본규률。재차기출상，결합이유적연구성과，건립료분형모형묘술토체점립함량대토-수특정곡선영향규률，해모형예측적토-수특정곡선여이유불동토류양본적시험수거문합교호，종이증명료해모형적유효성。최후，이용해모형동시예측료불동점립함량전형토체적토-수특정곡선，천명료점립함량대토-수특정곡선영향적기본규률，즉상동흡력조건하，점립함량월고，칙체적함수솔월고。
Clay content of soil has an important influence on soil-water characteristic curve. To establish a theoretical model describing the influence of clay content on soil-water characteristic curve, the relation be-tween the clay content and fractal dimension in terms of mass has been established by means of a fractal theory. This relation was verified by test data and used to explain the basic rule that the fractal dimension increases with the increase of clay content. On this basis, a fractal model which reflects the influence of clay content on soil-water characteristic curve was suggested based on the previous results. The results show that the soil-water characteristic curves predicted by the model are in good agreement with several tests data. The model was applied to predict the soil-water characteristic curves of some soils with different clay content and shows the influence of clay content on the soil-water characteristic curve, i.e., large clay content corresponds to large water content of volume in the case of same soil suction.