沉渣对低应变曲线影响的仿真分析  

Numerical Analysis of Low Strain Curves Influenced by Dregginess

作　　者：旺昕 刘誉 徐辉[3] 

机构地区：[1]武汉桥建集团有限公司,武汉430000 [2]武汉市第二市政工程有限公司,武汉430000 [3]华中科技大学土木工程与力学学院,武汉430074

出　　处：《土工基础》2009年第3期74-76,共3页Soil Engineering and Foundation

摘　　要：应用PLAXIS 8.0中的动力分析模块模拟低应变的测试过程,就桩底沉渣对低应变反射曲线的影响展开数值仿真分析。分析表明:地下水对低应变反射信号的影响不大;桩底沉渣对摩擦桩的低应变反射信号不会产生很大的影响;桩底沉渣对于端承桩,不仅会影响桩底反射到时,而且在桩底反射之前还会产生信号峰值与沉渣厚度密切相关的同向反射。Though numerical simulating the process of low strain testing based on the dynamic analysis module in the PLAXIS 8.0, the influence of the dregginess is analyzed and some valuable conclusions have been obtained： such as, the influence of groundwater to low strain curves is so week that it can be ignored entirely, the influence of dregginess to the friction pile is also week. However, for the end-bearing pile, the time of the pile end reflected signal its amplitude are influenced by the dreggihess.

关 键 词：数值仿真 低应变曲线 桩底沉渣 沉渣厚度 

分 类 号：TU473[建筑科学—结构工程]