[1]程天博,刘忠玉,张杰..考虑Hansbo渗流时施工荷载下饱和黏土的一维固结[J].郑州大学学报(工学版),2012,33(01):28-31.[doi:10.3969/j.issn.1671-6833.2012.01.007]
　CHENG Tianbo,LIU Zhongyu,ZHANG Jie.One-dimensional Consolidation of Saturated Clays underConstruction Loadings Considering Hansbo fow[J].Journal of Zhengzhou University (Engineering Science),2012,33(01):28-31.[doi:10.3969/j.issn.1671-6833.2012.01.007]
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考虑Hansbo渗流时施工荷载下饱和黏土的一维固结()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
33
期数:
2012年01期
页码:
28-31
栏目:
出版日期:
2012-01-10

文章信息/Info

Title:
One-dimensional Consolidation of Saturated Clays underConstruction Loadings Considering Hansbo fow
作者:
程天博; 刘忠玉; 张杰.
郑州大学土木工程学院,河南郑州,450001, 郑州大学土木工程学院,河南郑州,450001, 郑州大学土木工程学院,河南郑州,450001
Author(s):
CHENG Tianbo; LIU Zhongyu; ZHANG Jie
School of Civil Engineering,Zhengzhou University,2hengzhou 450001, China
关键词:
固结理论;  有限体积法;  Hansbo渗流;  施工荷载
Keywords:
consolidation theory;  finite volume method;  Hansbo flow;  construetion loading
分类号:
TU431
DOI:
10.3969/j.issn.1671-6833.2012.01.007
摘要:
引入Hansbo渗流方程描述非Darcy渗流,考虑施工过程中荷载随时间的变化,修正了Terzaghi 饱和黏土一维固结方程,建立了以有效应力为求解对象的非线性控制方程,并用有限体积法进行数值计算,讨论Hansbo渗流参数和施工速度对饱和黏土层固结特性的影响.计算结果表明:Hansbo渗流加剧了施工期孔压的累积,延缓了竣工后孔压的消散,地基的固结速度随Hansbo渗流参数增大而变慢,而施工速度仅对施工期和竣工初期的地基固结影响显著.
Abstract:
The Hansbo’s formula for non-Darcy flow :. introduced to modify Terzaghi’s 1-D consolidation e.quation, and the modified equation is generalized to account for the consolidation case under time-dependentconstruction loadings. The dependent variable of the presented nonlinear consolidation equation is the effectivestress, and numerical analysis is performed by using the finite volume method. "Then the effects of the parame.ters of Hansbo flow and the rate of loading on the 1-D consolidation behaviors of saturated clay layers are in.vestigated. The numerical results indicate that Hansbo flow causes the more accumulation of the pore waterpressure in the construction period and delays its dissipation after construction, and the rate of setlement ofthe soil layer deereases with the inerease of the parameters of Hansbo flow, In addition, the influence of load.ing rate on the consolidation behaviors is remarkable in the construction period and at the initial stage after itseompletion of construiction.

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更新日期/Last Update: 1900-01-01