密封管连接式自密封真空预压工艺及其仿真分析  

Technology of self-sealing vacuum preloading by sealing tubes and its simulated analysis

作　　者：张晓滨[1] 陈智军[2] 于健[2] 徐宾宾[2] 梁爱华[2] 李卫[2] 

机构地区：[1]天津港航工程有限公司,天津300457 [2]中交天津港湾工程研究院有限公司港口岩土工程技术交通行业重点试验室天津市港口岩土工程技术重点试验室,天津300222

出　　处：《中国港湾建设》2015年第10期18-21,共4页China Harbour Engineering

摘　　要：介绍了密封管连接式自密封真空预压的施工工艺,利用有限元程序模拟了真空预压加固过程,验证了数值模拟分析方法的可行性。计算结果表明,采用合理的本构模型和计算方法,地表处的计算沉降值和实测沉降值符合良好;通过比较传统真空预压加固法与密封管连接式真空加固法的地基内超静孔隙水压力分布,进一步验证了数值模拟的准确性。The technology of the self-sealing vacuum preloading method by sealing tube is introduced in this paper. Utilizing the finite element method to simulate the process of vacuum preloading, we verified the feasibility of the numerical simulation analysis method. The results show that there is a good coordance between the measured and computed settlement values by using rational constitutive model and calculation method. According to the distribution of excess pore water pressure, by comparing the excess pore pressure of the conventional and self-sealing vacuum preloading method, the accuracy of numerical calculation is further verified.

关 键 词：密封管连接式 自密封 真空预压 有限元计算 仿真分析 

分 类 号：U655.544.4[交通运输工程—港口、海岸及近海工程] TU472.33[交通运输工程—船舶与海洋工程]