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本文结合杭州萧储40号地块预应力管桩施工案例,探讨预应力管桩挤土效应与预防措施。介绍工程概况与地基土物理力学指标设计参数,分析预应力管桩挤土机理与效应,提出预应力管桩挤土效应预防措施。
Based on the case of prestressed pipe pile construction in Hangzhou No.40 Reservoir, this paper discusses the effect of prestressed pipe pile crowding and preventive measures. This paper introduces the general situation of engineering and design parameters of physical and mechanical indexes of foundation soil, analyzes the mechanism and effect of prestressed pipe piles and puts forward the preventive measures of squeezing soil effect of prestressed pipe piles.