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1、Seediscussions,stats,andauthorprofilesforthispublicationat:https://www.researchgate.net/publication/321418604EvaluationofsubgradeconditionofexistingheavyhaulrailwaybyobliquejetgroutingpileArticleinJournalofCivilandStructuralEngineering·October2017CITATIONSREADS0371author:Ru-songNieCentralSouthUni
2、versity48PUBLICATIONS23CITATIONSSEEPROFILESomeoftheauthorsofthispublicationarealsoworkingontheserelatedprojects:PilefoundationViewprojectrailwaysubgradeViewprojectAllcontentfollowingthispagewasuploadedbyRu-songNieon01December2017.Theuserhasrequestedenhancementofthedownloadedfile.第14卷第10期铁道科学与工程学报
3、Volume14 Number10 2017年10月JournalofRailway ScienceandEngineering October2017 斜向旋喷桩加固既有重载铁路路基状态评估12123伍晓伟,聂如松,莫秋金,梅慧浩,饶有权(1. 广西交通规划勘察设计研究院有限公司,广西南宁530029;2. 中南大学土木工程学院,湖南长沙410075;3. 湖南中大设计有限公司,湖南长沙410000)摘要:以斜向旋喷桩加固朔黄重载铁路路基为工程背景,通过对典型路基断面进行现场检测,评价加固前后的路基状态。对相应断面路基的稳定性进行分析计算,得到加固前后的稳定安全系数。并借助于有限元软件
4、进行平面建模,分析加固前后列车荷载作用下的路基面的沉降。对斜向旋喷桩的加固效果进行综合评估,结果表明斜向旋喷桩对提高路基稳定性及降低路基面的沉降具有积极作用,可供类似工程参考。关键词:旋喷桩;铁路路基;稳定性分析;瑞典条分法;abaqus 中图分类号:TU411.3 文献标志码:A文章编号:1672−7029(2017)10−2118−06 Evaluation of subgrade condition of existing heavy haul railway by oblique jet grouting pile12123WU Xiaowei , NIE Rusong , MO
5、 Qiujin , MEI Huihao , RAO Youquan (1. Guangxi Communications PlanningSurveying and Designing Institude Co. Ltd., Nanning 530029, China;2. School of Civil Engineering, Central South University, Changsha 410075, China;3. Hunan Zhongda Design Co., Ltd., Changsha 410000, China)Abstract:Inthispaper,
6、theheavyhaul railwaysubgradeofShuoHuangwas takenas anengineeringexample, whichwas reinforcedbytheinclinedrotaryjet groutingpile. Through thefieldtestoftypical subgradesection, thesubgradeconditionbeforeandafterreinforcement was evaluated. Thestabilityofthesubgradeofthe correspondingsection was an
7、alyzedandcalculated, andthestabilitysafetyfactorwas obtainedbeforeandafterthereinforcement. Withtheaidofthefiniteelement software, theplanemodel was established, andthesettlement ofthesubgradesurfaceundertheactionofthe