首页 | 本学科首页   官方微博 | 高级检索  
     检索      

纤维水泥土力学性能的试验研究
引用本文:鹿 群,郭少龙,王闵闵,高 萌.纤维水泥土力学性能的试验研究[J].岩土力学,2016,37(Z2):421-426.
作者姓名:鹿 群  郭少龙  王闵闵  高 萌
作者单位:1.中国电力建设集团 华东勘测设计研究院有限公司,浙江 杭州,310014;2.天津城建大学 土木工程学院,天津300384; 3.天津城建大学 天津市软土特性与工程环境重点实验室,天津 300384
基金项目:中国电力建设集团科技项目(No. SD2013-10)
摘    要:为了解加入纤维对水泥土力学性能的影响,对素水泥土及纤维水泥土进行了无侧限抗压和疲劳试验。研究结果表明,添加纤维可小幅度提高水泥土的抗压强度;与素水泥土相比,纤维水泥土在达到应力峰值时的应变明显增大,破坏后的残余强度也有所提高;纤维的加入提高了水泥土的延性,减少了裂缝的开展,改善了其力学性能;添加纤维后水泥土抵抗疲劳的能力明显增强;掺入纤维对水泥土抗疲劳能力的提高程度远大于其对水泥土无侧限强度的提高程度;水泥土的应力水平和疲劳寿命之间具有单对数线性关系;在循环荷载作用下水泥土表现为低应力性破裂特征。

关 键 词:水泥土  纤维水泥土  疲劳试验  
收稿时间:2016-07-27

Experimental study of mechanical properties of fiber cement soil
LU Qun,GUO Shao-long,WANG Min-min,GAO Meng.Experimental study of mechanical properties of fiber cement soil[J].Rock and Soil Mechanics,2016,37(Z2):421-426.
Authors:LU Qun  GUO Shao-long  WANG Min-min  GAO Meng
Institution:1. Power Construction Corporation of China, Huadong Engineering Corporation Limited, Hangzhou, Zhejiang 310014, China; 2. School of Civil Engineering, Tianjin Chengjian University, Tianjin 300384, China; 3. Tianjin Key Laboratory of Soft Soil Characteristics and Engineering Environment, Tianjin Chengjian University, Tianjin 300384, China
Abstract:In order to understand the influence of fiber on the mechanical properties of cement soil, the unconfined compression test and fatigue test of cement soil and fiber reinforced cement soil are carried out. The results show that the compressive strength of cement soil can be improved slightly by adding fiber. Compared with plain cement soil, the strain of fiber cement soil increases obviously at the stress peak point; and its residual strength after failure also increases. The addition of fiber improves the ductility of the cement soil, reduces the crack development and improves its mechanical properties. After the fiber is added, the antifatigue ability of cement soil is significantly increased. The degree of the improvement of cement soil fatigue resistance is much greater than that of unconfined strength of cement soil. The relationship between stress level and fatigue life of cement soil is single logarithm linear. The cement soil is characterized by low stress rupture under cyclic loading.
Keywords:cement soil  fiber reinforced cement soil  fatigue test  
本文献已被 CNKI 等数据库收录!
点击此处可从《岩土力学》浏览原始摘要信息
点击此处可从《岩土力学》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号