不同因素作用下重塑土体抗崩解性能研究

Study on anti-disintegration performance of remolded soil under different factors

通过设计纤维含量和初始含水率两个因素,纤维含量设计0‰,1‰,2‰,3‰,5‰,7‰共6个水平,含水率设计15%,17%,20%,23%,25%共5个水平进行正交实验。研究发现重塑土体累计崩解量随初始含水率增加而先降低后增加,当初始含水率为20%时,30 min的累计崩解量最低;重塑土体累计崩解量随纤维含量增加而先降低后增加,当纤维含量为5‰时,30 min的累计崩解量最低;从而得出初始含水率为20%和纤维含量为5‰为较优的配合比。

By designing two factors of fiber content and initial water content,six levels of fiber content were designed,namely 0‰,1‰,2‰,3‰,5‰and 7‰,and five levels of water content,namely 15%,17%,20%,23%and 25%,were designed for orthogonal experiments.The research results showed that the cumulative disintegration of the remolded soil decreased first and then increased with the increase of the initial water content.When the initial water content was 20%,the 30 minute cumulative disintegration amount was the lowest.The cumulative disintegration of remolded soil decreased first and then increased with the increase of fiber content.When the fiber content was 5‰,the 30 minute cumulative disintegration was the lowest.It is concluded that the initial water content is 20%and the fiber content is 5‰.