摘要
以高速公路湿陷性黄土地基高填方路堤施工为研究背景,根据施工现场地质情况制定灰土挤密桩加固方案,采用有限元软件进行数值模拟分析,并结合施工现场沉降监测结果进行分析。结果表明,随着压实度增加,各区间分层压缩量随之下降,且加固后沉降量明显下降。采用灰土挤密桩加固后,高路堤地基沉降逐步稳定,路堤顶面沉降速率明显下降,说明加固后路堤稳定性得到了有效提升,达到了预期效果。
Taking the construction of high fill embankment for the collapsible loess foundation of the highway as the research background,the reinforcement scheme of the lime soil compaction pile is made based on the geological conditions of the construction site.The numerical simulation analysis is made by using the finite element software,and the settlement monitoring results at the construction site are analyzed.The results show that,as the compaction degree increases,the layered compression amount in each section decreases,and the settlement amount after reinforcement significantly decreases.After the reinforcement by using the lime soil compaction pile,the settlement of the high embankment foundation is gradually stabilized,and the settlement rate of the embankment top surface is significantly decreased,so as to indicate that the stability of the embankment has been effectively improved after reinforcement,achieving the expected effect.
作者
董海洋
Dong Haiyang(Yuncheng South Expressway Branch of Shanxi Transportation Holding Group Co.,Ltd.,Yuncheng 044000,China)
出处
《北方交通》
2023年第9期46-50,共5页
Northern Communications
关键词
高路堤
灰土挤密桩
数值模拟
沉降监测
High embankment
Lime soil compaction pile
Numerical simulation
Settlement monitoring
