对《真空预压加固软土地基技术规程》(JTS147—2009)一些问题的探讨  

Issues concerning Technical Specification for Vacuum Preloading Technique to Improve Soft Soils

作　　者：付长宏[1] 蒋华忠[2] 郑利涛[1] 

机构地区：[1]天津市海岸带工程有限公司,天津300842 [2]中交水运规划设计院有限公司,北京100007

出　　处：《水运工程》2014年第1期178-181,共4页Port & Waterway Engineering

摘　　要：《真空预压加固软土地基技术规程》(JTS 147—2009)中对真空及联合堆载预压时何时堆载,滤管的布置、通水量、形式、沉降计算、检测及卸载标准等要求比较含糊。根据以往设计经验,对堆载时间、滤管的布置、通水量、形式进行计算分析;对沉降计算中的系数、层厚与有关规范进行比较并提出建议;对于检测及卸载标准,提出应根据检测数据确定卸载时间。Stipulations in Technical Specification for Vacuum Preloading Technique to Improve Soft Soils （JTS 147-2009） concerning the time of heaped load of vacuum combined surcharge preloading, the layout, flow capacity and type of the filter tube, settlement calculation, as well as the standard of detection and unloading are relatively vague. Based on previous experience in the design and comparing with relevant specifications, we carry out the computational analysis about all the questions above and propose recommendations. It is suggested to determine the time of unloading based on the test data.

关 键 词：真空(联合堆载)预压 堆载 滤管 沉降计算 检测 卸载标准 

分 类 号：U655.544.4[交通运输工程—港口、海岸及近海工程]