[1]程天宝.纤维 EPS轻质土抗压与动变形性能分析[J].湖北工业大学学报,2024,39(1):111-115.
　CHENG Tianbao.Analysis of Compressive and Dynamic Deformation Performance of Fiber EPS Lightweight Soil[J].,2024,39(1):111-115.
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纤维 EPS轻质土抗压与动变形性能分析()
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《湖北工业大学学报》[ISSN:1003-4684/CN:42-1752/Z]

卷:
39
期数:
2024年第1期
页码:
111-115
栏目:
出版日期:
2024-02-20

文章信息/Info

Title:
Analysis of Compressive and Dynamic Deformation Performance of Fiber EPS Lightweight Soil
文章编号:
1003-4684(2024)01-0111-05
作者:
程天宝
(湖北工业大学土木建筑与环境学院,湖北 武汉４３００６８)
Author(s):
CHENG Tianbao
(School of Civil Engin.,Architecture and Environment,Hubei Univ.of Tech.,Wuhan 430068,China)
关键词:
轻质土; 无侧限抗压强度; 动三轴; 动弹性模量
Keywords:
lightweight soil;  unconfined compressive strength;  dynamic triaxial;  dynamic modulus of elasticity
分类号:
TU411.6
文献标志码:
A
摘要:
通过无侧限抗压强度试验与动三轴试验研究 EPS掺量、纤维掺量以及水泥掺量对纤维 EPS轻质土力学特性的影响.结果表明:纤维 EPS轻质土的无侧限抗压强度和水泥掺量呈正相关,和 EPS掺量呈负相关.纤维的加入提高了试样的无侧限抗压强度峰值、残余强度和整体性.纤维掺量大于０．３％时,提升效果减弱.纤维 EPS轻质土的动应力应变曲线表现为非线性上升;相同动应力和围压下,EPS掺量越大,试样的动应变越大;动弹性模量随 EPS掺量增加而降低,随动应力的增加逐渐降低,围压的升高增加了试样的刚度.
Abstract:
The effects of EPS content, fiber content and cement content on the mechanical behavior of fiber EPS lightweight soil were studied by unconfined compressive strength test and dynamic triaxial test. The consequences show the strength of fiber EPS lightweight soil is positively correlated with cement content, and negatively correlated with EPS content. The addition of fiber increases the maximum strength residual strength and integrity. When the fiber content is greater than 0.3%, the lifting effect is weakened. The dynamic stress-strain curve of EPS lightweight soil shows a nonlinear rise. Under the same dynamic stress and confining pressure, the dynamic strain of the sample rises with the increase of EPS content. The dynamic elastic modulus declines with the rise of EPS content, and gradually declines with the rise of dynamic stress. The rise of confining pressure increases the stiffness of the sample.

参考文献/References:

[１]　顾欢达,顾熙．混合塑料发泡颗粒轻质土的强度特性评价方法[J]．中国公路学报,２００７,２０(０１):４１Ｇ４６．[２]　嶋津晃臣．軽量盛土工法の進展[J]．土と基礎,１９８９,３７Ｇ２(３７３):７Ｇ１１．[３]　汤峻,朱伟,李明东,等．砂土 EPS颗粒混合轻质土的１１４ 湖　北　工　业　大　学　学　报 ２０２４年第１期　物理力学特性[J]．岩土力学,２００７(０５):１０４５Ｇ１０４９．[４]　辛凌,沈扬,刘汉龙,等．单轴压力下 RST轻质土变形特性及其细观机理分析[J]．河海大学学报(自然科学版),２０１０,３８(０２):１６０Ｇ１６４．[５]　庄心善,苑立森,梅利芳．聚丙烯纤维 EPS轻质混合土抗压强度试验研究[J]．水电能源科学,２０１４,３２(０７):５．[６]　何奇宝．EPS颗粒混合轻质土(LCES)与粘土动力特性的对比试验研究[D]．南京:河海大学,２００７．[７]　罗金．室内试验公路交通荷载参数的确定[J]．低温建筑技术,２０１５,３７(０３):３．[８]　董理,侯天顺,骆亚生,等．动荷载下 EPS颗粒混合轻量土的动强度特性试验研究[J]．中国农村水利水电,２０１８(０６):６．[９]　黎冰,高玉峰．黏土与 EPS颗粒混合轻质土的动力变形特性试验研究[J]．岩土工程学报,２００７,２９(０７):６．[１０]庄心善,周睦凯,陶高梁,等．循环荷载下发泡聚苯乙烯改良膨胀土动弹性模量与阻尼比试验研究[J]．岩土力学,２０２１,４２(０９):２４２７Ｇ２４３６．

相似文献/References:

[1]顾浩宇,梅利芳.冻融循环作用下 EPS轻质土力学特性试验研究[J].湖北工业大学学报,2023,(5):110.
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备注/Memo

备注/Memo:
[收稿日期]２０２２ -０４ -３０[第一作者]程天宝(１９９７－),男,河南平顶山人,湖北工业大学硕士研究生,研究方向为土工合成材料.
更新日期/Last Update: 2024-03-19