真空预压沉降速率及卸载标准的影响因素

作者：曹永华 杨京方

单位：中交天津港湾工程研究院有限公司

关键词：真空预压  沉降速率  卸载标准  地基处理

分类号：TU472.33

出版年,卷(期):页码：2008,32(4):23-26

摘要：

基于经典固结理论,分析了影响真空预压沉降速率的各个因素。研究表明,沉降速率与土性指标、加固土层的厚度、以及排水板打设参数等有着很大的关系,因此,在确定沉降稳定标准的沉降速率时,应考虑这些因素的影响。

Based on the classic consolidation theory,a study was conducted on influencing factors of settlement velocity of vacuum preloading.It was found that settlement velocity was influenced by the following factors: soil property,improvement depth and the installing parameters of prefabricated drain.To determine the convergence settlement velocity,these factors should be taken into account.

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参考文献：

[1]Kjellman W.Consolidation of clay by means of Atmospheric Pressure[C].Proc.Conference on Soil Stabilization MIT.Boston,1952. [2]陈环.真空预压法机理研究十年[J].港口工程,1991,(4):17-26. [3]高志义.真空预压法的机理分析[J].岩土工程学报,1989,11(4):45-560. [4]闫澍旺,陈环.真空预压法作用机理的数值分析方法[J].岩土工程学报,1986,8(2):35-44. [5]J Chu,SWYan,H Yang.Soil improvement bythe vacuumpreload-ing methodfor an oil storage station[J].Geotechnique,2000,50(6):625-632.

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