摘要
为探索有效防治软土地区沉桩时挤土效应对周边环境造成不良影响的方法,通过在某教学训练馆A(副馆)桩基施工时设置应力释放孔,结合理论计算及现场监测周边建筑的累计沉降、位移的方法,观测到设置应力释放孔后土体在水平及竖向的位移均会大幅度减小,同时周围环境未遭受到破坏。结果表明,采用应力释放孔的措施能够有效地解决挤土效应问题,为防治深厚软土层地区预制桩挤土效应提供一些参考。
In order to explore ways to effectively prevent and control the squeez effect in soft soil areas on the surrounding environment.By setting up the relief holes in the construction of pile foundation in the teaching and training hall A(secondary building)and combining with the theoretical calculation and on-site monitoring of accumulated settlement and displacement of surrounding buildings,it is observed that the horizontal and vertical displacements of the soil will be greatly reduced after setting up the stress release holes and the surrounding environment is not damaged.The results show that the measures of relief holes can effectively solve the problem of squeez effect in soft soil areas and provide some reference for the prevention and control of the prefabricated pile effect in deep soft soil layer.
作者
雷练武
吴爱梅
吴瑾
LEI Lian-wu;WU Ai-mei;WU Jin(Ningbo East China Nuclear Engineering Investigation Institute,Ningbo,ZJ 315800,China)
出处
《东华理工大学学报（自然科学版）》
CAS
2018年第3期277-281,共5页
Journal of East China University of Technology(Natural Science)
关键词
预制桩
应力释放孔
挤土效应
precast piles
stress release hole
squeeze effect
