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首页> 外文会议>Cold regions engineering 2009 : Cold regions impact on research, design, and construction >Analyses of Frost-Migration Under Post-Tensioned Slabs
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Analyses of Frost-Migration Under Post-Tensioned Slabs

机译：张拉平板下的霜冻迁移分析

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摘要

Post-Tensioned slabs-on-grade were used for the foundations of a condominiums development in the mountains of Colorado near Silverthorne. The site is located near the Blue River and has a high water table and silty soils. Because an unheated patio was cast as an integral part of the post-tensioned slab, the edges of the slab experienced intolerable heave due to frost penetration under the patio. The migration of the freezing front and the resulting frost heave were modeled using commercial software. The design defects that led to the frost penetration were identified using the results of the analyses. The results also provided input into the design of remediation plans.
机译：后张紧的楼板被用作Silverthorne附近科罗拉多山区的公寓开发基础。该地点位于蓝河附近，地下水位高，粉质土壤。由于将未加热的天井浇铸为后张紧板的组成部分，由于天井下的霜冻渗透，板的边缘发生了无法忍受的隆起。使用商业软件对冻结锋的迁移和由此产生的冻胀进行建模。使用分析结果确定导致霜渗透的设计缺陷。结果还为补救计划的设计提供了投入。

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