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[1]张鹏,吴咪咪,董金梅,等.玄武岩纤维与聚丙烯酰胺加筋固化粉土剪切强度[J].南京工业大学学报(自然科学版),2017,39(04):93-101.[doi:10.3969/j.issn.1671-7627.2017.04.016]
 ZHANG Peng,WU Mimi,DONG Jinmei,et al.Shear strength of silt reinforced with basalt fiber and polyacrylamide[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2017,39(04):93-101.[doi:10.3969/j.issn.1671-7627.2017.04.016]
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玄武岩纤维与聚丙烯酰胺加筋固化粉土剪切强度()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
39
期数:
2017年04期
页码:
93-101
栏目:
出版日期:
2017-07-20

文章信息/Info

Title:
Shear strength of silt reinforced with basalt fiber and polyacrylamide
文章编号:
1671-7627(2017)04-0093-09
作者:
张鹏吴咪咪董金梅李俊才
南京工业大学 交通运输工程学院,江苏 南京 210009
Author(s):
ZHANG PengWU MimiDONG JinmeiLI Juncai
College of Transportation Science & Engineering,Nanjing Tech University,Nanjing 210009,China
关键词:
粉土路基边坡 玄武岩纤维 聚丙烯酰胺 复合面层 剪切强度
Keywords:
sand silt subgrade slope basalt fiber polyacrylamide composite layer shear strength
分类号:
U416.1+4
DOI:
10.3969/j.issn.1671-7627.2017.04.016
文献标志码:
A
摘要:
针对粉质土路基坡面冲刷破坏与叠瓦状分层滑移的两大病害,提出一种粉土路基边坡固化加筋复合面层增稳抗冲刷护坡技术。开展了复合面层的直接剪切试验,讨论不同玄武岩纤维加筋量、筋长和聚丙烯酰胺掺量配比条件下复合面层材料的剪切变形和抗剪强度的变化规律,研究复合面层的增稳抗剪性能及玄武岩纤维的最优掺量、筋长与聚丙烯酰胺的最优配比。试验表明:复合面层最优配比为玄武岩纤维筋长12 mm、掺量0.4%,聚丙烯酰胺掺量1%,复合面层的抗剪强度能够满足护坡技术的要求。
Abstract:
Layered-slipping and scouring are two types of failure modes in the silt subgrade slope.In view of the above mentioned diseases,this paper proposed a new method to increase the stability,anti erosion and slope protection technology of solidified composite surface of silt subgrade slope.In this paper,the direct shear test of the composite surface layer(three layer)was carried out.By discussing the variation law of shear composite surface layer of material deformation and shear strength under the conditions of different basalt fiber reinforcements,length and polyacrylamide concentration ratio,the stability of the composite surface layer and the optimal content of the basalt fiber,the length and the optimal ratio of the polyacrylamide are researched.Finally,the experimental results showed that the optimal length of basalt fiber was 12 mm and the optimal quality ratio was 0.4%,and the optimal content of polyacrylamide was 1%.Moreover,the shear strength of the composite surface can meet the requirements of the slope protection technology.

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备注/Memo

备注/Memo:
收稿日期:2016-05-19
基金项目:国家自然科学基金(41372295)
作者简介:张鹏(1976—),男,江苏扬州人,副教授,主要研究方向为岩土、边坡及隧道工程,E-mail:906990880@qq.com.
引用本文:张鹏,吴咪咪,董金梅,等.玄武岩纤维与聚丙烯酰胺加筋固化粉土剪切强度[J].南京工业大学学报(自然科学版),2017,39(4):93-101..
更新日期/Last Update: 2017-07-31