粉土抗液化性能的微观分析
|
摘要
通过对不同粘粒含量和不同时间情况下的重塑粉土进行扫描电镜的实验分析 ,初步了解了其在不同粘粒含量下以及时效下的微观结构的变化规律 ,以及粉土的微观结构与其抗液化性能之间的关系。通过对粉土微观照片的分析 ,得出结论 :含天然黏土颗粒的粉土 ,其微观结构特性在黏粒含量为Pc=9%附近发生变化。即黏粒含量Pc=9%为粉土土性变化的一转折点。
Through analysis of the SEM experiment on the retem pering silt with di fferent clay contents and at different times, the writer introduces the variatio n law of silt's micro structure and the relationship between silt's micro stru ct ure and it's anti liquefaction. Through analyzing the silt's micro photo, the wr iter draws the conclusion that the micro structural characteristics of the silt with natural grains of clay varies when it's clay contents amount to Pc=9%, which is one of the turning points where the silt's characteristics change.
Through analysis of the SEM experiment on the retem pering silt with di fferent clay contents and at different times, the writer introduces the variatio n law of silt's micro structure and the relationship between silt's micro stru ct ure and it's anti liquefaction. Through analyzing the silt's micro photo, the wr iter draws the conclusion that the micro structural characteristics of the silt with natural grains of clay varies when it's clay contents amount to Pc=9%, which is one of the turning points where the silt's characteristics change.
引文
[1]张崇文,赵剑明,毕政根.粉土地基液化分析[J].天津大学学报,1997,30(4):4652.
[2]何广衲,郭莹.粉土液化的模糊综合评判方法[J].地震工程与工程振动,1988,8(3):112119.
[3]牛琪瑛,裘以惠,史美筠.粉土抗液化特性的试验研究[J].太原工业大学学报,1996,27(3):7376.
[4]谢定义.饱和砂土体液化的若干问题[J].岩土工程学报,1992,14(3):134141.
[2]何广衲,郭莹.粉土液化的模糊综合评判方法[J].地震工程与工程振动,1988,8(3):112119.
[3]牛琪瑛,裘以惠,史美筠.粉土抗液化特性的试验研究[J].太原工业大学学报,1996,27(3):7376.
[4]谢定义.饱和砂土体液化的若干问题[J].岩土工程学报,1992,14(3):134141.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心