[1]丁瑜,乔建平,王全才,等.拉力分散型锚索在边坡二次加固中的应用[J].山地学报,2011,(04):499.
　DING Yu,,et al.Application of Dispersiontype Tensile Cable on Secondary Reinforcement in Slope Engineering[J].Mountain Research,2011,(04):499.
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拉力分散型锚索在边坡二次加固中的应用()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2011年04期
页码:
499
栏目:
山地学报
出版日期:
2011-01-01

文章信息/Info

Title:
Application of Dispersiontype Tensile Cable on Secondary Reinforcement in Slope Engineering
作者:
丁瑜;乔建平;王全才;
1. 三峡大学 三峡库区地质灾害教育部重点实验室，湖北 宜昌 100049；
2. 中国科学院水利部成都山地灾害与环境研究所，四川 成都 610041；
3. 中国科学院研究生院，北京 100049
Author(s):
DING Yu; QIAO Jianping; WANG Quancai
1. Key Laboratory of MOE Geological Hazards in Three Gorges Reservoir Area,Three Gorges University, Yichang 443002, Hubei, China;
2. Institute of Mountain Hazards ＆ Environment, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China;
3. Graduated School of Chinese Academy of Sciences, Beijing 100049, China
关键词:
公路边坡; 界面剪应力; 拉力分散型锚索; 二次加固
Keywords:
slope engineering; interfacial shear strength; dispersiontype tensile cable; secondary reinforcement
分类号:
U417
文献标志码:
A
摘要:
一些边坡治理后由于工程加载、雨水入渗以及地震等影响,局部会出现新的变形破坏,需要根据边坡和治理工程结构的变形情况进行二次加固(补强加固)。以拉力分散型锚索为例,首先分析其结构特征及优越性。考虑松散地层的软化特性,借助剪滞理论分析模型给出拉力分散型锚索锚固段上灌浆体与锚固岩层界面剪应力的计算公式,在此基础上,对一公路边坡二次加固中采用的拉力分散锚索锚固段荷载分布进行了分析和讨论。实例分析和监测结果表明,拉力分散型锚索锚固段荷载分布更为合理,有助于维护锚固体系的预应力水平。拉力分散型锚索用于边坡二次加固具有广泛的应用前景。
Abstract:
Affected by loads, water infiltration, earthquake and others factors, local failures will occur in some protected slopes. Secondary reinforcement thus needs to implement for these slopes according to the slope deformation and protective measures. In this paper, the dispersiontype tensile cable cited as the secondary reinforced measure. The structure and superiority of this prestressed cable are firstly addressed. Considering the stratum softening, calculated formula modified from Shear-Lag Model is presented to analyze the shear strength of grout/matrix interface along the anchored section. Load transfer of the dispersiontype tensile cable of the secondary reinforcement in a highway slope is then analyzed and discussed. The case analysis and monitoring results show that load distribution of the dispersiontype tensile cable is more reasonable, which contributes to maintaining the prestress capability of the anchorage system. It is expected that the dispersiontype tensile cable for slope second reinforcement has wide application prospects.

相似文献/References:

[1]苏生瑞,李松,程强,等.汶川地震后公路边坡崩塌灾害发育规律[J].山地学报,2012,(03):321.
　SU Shengrui,LI Song,CHENG Qiang.Characteristics of the Postearthquake Rockfalls of Highway Slopes in Wenchuanearthquakestricken Areas[J].Mountain Research,2012,(04):321.

备注/Memo

备注/Memo:
收稿日期(Received date)：2010-09-11；改回日期(Accepted) : 2011-03-01。
基金项目（Foundation item）：国家自然科学基金青年科学
基金项目(41002100 )。\[ Supported by National Science Fund for Distinguished Young Scholars (No. 41002100).\]
作者简介（Biography）：丁瑜（1980-），男，博士，研究方向：滑坡机理及边坡加固机理研究。\[Ding Yu (1980- ), male, PH.D., research direction: landslide mechanism and slope reinforcement.\] E-mail: thirdding@163.com
更新日期/Last Update: 1900-01-01