[1]张军,申俊敏,牛玺荣..加筋地基承载特性与参数优化研究[J].郑州大学学报(工学版),2013,34(05):12-16.[doi:10.3969/j.issn.1671-6833.2013.05.003]
　ZHANGJun,SHENJunmin,NIU Xi·rong.Study on Bearing Characteristics and Parameter Optimization of Reinforced Ground Soil[J].Journal of Zhengzhou University (Engineering Science),2013,34(05):12-16.[doi:10.3969/j.issn.1671-6833.2013.05.003]
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加筋地基承载特性与参数优化研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
34卷
期数:
2013年05期
页码:
12-16
栏目:
出版日期:
2013-09-10

文章信息/Info

Title:
Study on Bearing Characteristics and Parameter Optimization of Reinforced Ground Soil
作者:
张军; 申俊敏; 牛玺荣.
山西省交通科学研究院黄土地区公路建设与养护技术交通行业重点实验室,山西太原,030006, 山西省交通科学研究院黄土地区公路建设与养护技术交通行业重点实验室,山西太原,030006, 山西省交通科学研究院黄土地区公路建设与养护技术交通行业重点实验室,山西太原,030006
Author(s):
ZHANGJun; SHENJun—min; NIU Xi·rong
Key Laboratory of Highway Constmction and MaintenanceTechnologyin Loess Region，shanxiTmnsponation Research Institute，Taiyuan 030006，China
关键词:
加筋土;  土工格栅;  承载特性;  参数优化
Keywords:
reinforcedsoil; geogrid; bearing characteristics; parameteroptimi髓tion
分类号:
U416.1
DOI:
10.3969/j.issn.1671-6833.2013.05.003
文献标志码:
A
摘要:
地基加筋可显著增强土体的抗拉和抗剪强度,提高土体整体稳定性.基于离散元法软件PFC2D,建立土工格栅加筋地基颗粒流数值模型.对比分析了基础荷载作用下无筋和加筋2种工况下地基基础沉降和地基土位移的变化规律,并系统分析了加筋长度、加筋深度和加筋层数等加筋地基中重要设计计算参数对地基承载特性的影响.研究结果表明:筋材可有效减小基础沉降,增加地基承载力,限制土体竖向和水平位移；地基最佳加筋长度、加筋深度和加筋层数分别为3B、0.25B和2层.
Abstract:
Geogridcanimprove the tensile strength，shearstrength andoVemll stabilitysignificantly when it is used as reinforcementfor ground．Basedonthe discreteelementmethod software PFC2D，anumericalmodel is established to studythegeogrid reinforced soil．Compared with unreinforced soil，thefoUowing studies are ped．onned：the settlement of fbundation and the lateml and Vertical displacement distribution of soil with depth．Then，aparametric studyis carried outto investigate the bearingcapacity of fbundationandthe select— ed innuencing factors consist of the reinforced length，reinforced depth andthe number of reinforced layerS．Theresults show that the geogrid can reduce the foundation senlementandimprove tlle bearing capacity．It can restrict the ground horizontal and vertical displacement efkctiVely．The optimal pammeters of reinforced lengtII，reinforced depth andreinforced layers are 3曰、0．25曰and2 1ayers respectiVely．

参考文献/References:

[1]李广信.从息壤到土工合成材料[J].岩土工程学报,2013,35( 1):144 - 149.

[2]张桂荣,赵波,饶志刚,等.土质岸坡生态防治技术研究[J].郑州大学学报:工学版,2012,33(5):87一91.
[3]孙向前.土工格栅在道路拓宽改造工程中的应用[ J].山西交通科技,2000,132(2 ):20 - 21 ,25.

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更新日期/Last Update: 1900-01-01