基于模型理论和遗传蠕变理论的改良膨胀土非线性流变研究

doi:10.16285/j.rsm.2016.S2.009

›› 2016, Vol. 37 ›› Issue (S2): 75-82.doi: 10.16285/j.rsm.2016.S2.009

基于模型理论和遗传蠕变理论的改良膨胀土非线性流变研究

杨程，文畅平

中南林业科技大学土木工程与力学学院，湖南长沙 410004

收稿日期:2016-04-25 出版日期:2016-11-11 发布日期:2018-06-09
通讯作者: 文畅平，男，1965年生，博士，教授，硕士生导师，从事岩土地震工程，高边坡和支挡结构，道路与路基工程。 E-mail:1017938511@qq.com
作者简介:杨程，男，1989年生，硕士，主要从事膨胀土路基处置研究。
基金资助:
湖南省交通科技项目（No.200944）；中南林业科技大学引进高层次人才科研启动基金（No.104-0094）

Study of nonlinear rheology of improved expansive soil based on model theory and genetic creep theory

YANG Cheng, WEN Chang-ping

College of Civil Engineering and Mechanics, Central South University of Forestry and Technology, Changsha, Hunan 410004, China

Received:2016-04-25 Online:2016-11-11 Published:2018-06-09
Supported by:
This work was supported by Hunan Traffic Science and Technology Project（200944) and Scientific Research Fund Project for Introduced Higher-level Talents in Central South University of Forestory and Technology（104-0094).

摘要/Abstract

摘要： 为研究膨胀土非线性流变，取水泥改良膨胀土样进行长期一维压缩试验，得到了改良膨胀土在不同应力水平下的应力-应变等时曲线簇。将曲线反映的非线性流变分解为线性黏弹性蠕变变形、线性黏塑性蠕变变形和非线性黏塑性蠕变变形三部分。基于模型理论和遗传蠕变理论建立了各部分流变模型，其中在线性黏弹性蠕变变形和线性黏塑性蠕变变形部分采用模型理论建立元件模型，在非线性黏塑性蠕变变形部分运用遗传蠕变理论建立积分蠕变方程，结合试验数据拟合出材料和方程参数，用该模型得到的蠕变曲线与实测结果能较好吻合。

关键词: 非线性流变, 模型理论, 遗传蠕变理论, 黏弹性蠕变, 黏塑性蠕变

Abstract: In order to research the nonlinear rheology of expansive soil, the samples of cement-improved expansive soil have been selected to conduct the long-term one-dimensional compression tests. The stress-strain curve family for the improved expansive soil under different stress levels has been gained. The nonlinear rheology reflected by the curve can be divided into the linear viscoelastic creep deformation, linear viscoplastic creep deformation and nonlinear viscoplastic creep deformation. Based on the model theory and genetic creep theory, the rheology model for every category has been built accordingly. For the linear viscoelastic creep deformation and linear viscoplastic creep deformation, the model theory has been adopted to build the component model. For the nonlinear viscoplastic creep deformation, the genetic creep theory has been utilized to formulate the integral creep equation. The materials and equation parameters have been gained through the fitting of experimental data. It is found that the creep curve is consistent with the experimental result well.

Key words: nonlinear rheology, model theory, genetic creep theory, viscoelastic creep, viscoplastic creep

中图分类号:

TU 443

杨程，文畅平. 基于模型理论和遗传蠕变理论的改良膨胀土非线性流变研究[J]. , 2016, 37(S2): 75-82.

YANG Cheng, WEN Chang-ping. Study of nonlinear rheology of improved expansive soil based on model theory and genetic creep theory [J]. , 2016, 37(S2): 75-82.

参考文献

相关文章 11

[1]	刘斌, 许宏发, 董璐, 马语卿, 李可良, . 岩盐循环荷载下基于DS黏壶的非线性流变模型研究[J]. 岩土力学, 2018, 39(S2): 107-114.
[2]	李剑，陈善雄，姜领发. 循环荷载作用下黏土改进边界面模型[J]. , 2015, 36(2): 387-392.
[3]	肖宏彬，贺聪，周伟，肖果 . 南宁膨胀土非线性剪切应力松弛特性试验[J]. , 2013, 34(S1): 22-27.
[4]	杨文东，张强勇，李术才，陈芳，王刚 . 以屈服接近度分段函数表示的非线性流变模型的程序实现[J]. , 2013, 34(9): 2629-2637.
[5]	李珍玉，肖宏彬，金文婷，易文 . 南宁膨胀土非线性流变模型研究[J]. , 2012, 33(8): 2297-2302.
[6]	宋勇军，雷胜友，韩铁林 . 一种新的岩石非线性黏弹塑性流变模型[J]. , 2012, 33(7): 2076-2080.
[7]	朱珍德，朱明礼，阮怀宁，黄强，韩立军. 深埋长大隧洞围岩非线性蠕变模型研究[J]. , 2011, 32(S2): 27-35.
[8]	杨圣奇，徐卫亚，杨松林. 龙滩水电站泥板岩剪切流变力学特性研究[J]. , 2007, 28(5): 895-902.
[9]	王永岩，齐王君，杨彩虹，魏佳. 深部岩体非线性蠕变规律研究[J]. , 2005, 26(1): 117-121.
[10]	黄文熙. 土的弹塑性应力——应变模型理论(续)[J]. , 1979, 1(2): 13-38.
[11]	黄文熙. 土的弹塑性应力—应变模型理论[J]. , 1979, 1(1): 1-20.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

基于模型理论和遗传蠕变理论的改良膨胀土非线性流变研究

Study of nonlinear rheology of improved expansive soil based on model theory and genetic creep theory

PDF (Chinese)

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 11

Metrics

本文评价

推荐阅读 0