| 硫酸侵蚀环境下水泥土的多元线性回归强度模型 |
| |
| 引用本文： | 陈晋中,韩鹏举,白晓红. 硫酸侵蚀环境下水泥土的多元线性回归强度模型[J]. 建筑科学, 2009, 25(9) |
| |
| 作者姓名： | 陈晋中 韩鹏举 白晓红 |
| |
| 作者单位： | 南京交通职业技术学院,南京,211188;太原理工大学建筑与土木工程学院,太原,030024 |
| |
| 基金项目： | 山西省留学生回国资金项目 |
| |
| 摘 要： | 通过模拟试验的方法探讨了在不同H2SO4侵蚀环境下不同龄期(0～28d)的水泥土表观变化和抗压强度衰减规律,得出了水泥土表面腐蚀程度随着侵蚀时间的增长和H2SO4介质浓度的增大而增加,水泥土抗压强度随H2SO4浓度的增大而减小;分析了H2SO4溶液的pH值和SO2-4浓度随时间的变化关系,得出随着时间的增长侵蚀溶液的pH值增大,SO2-4浓度则呈下降趋势.研究认为:受H2SO4侵蚀的水泥土强度改变与环境溶液的pH值、SO2-4浓度和时间密切相关.在此基础上建立了考虑H2SO4侵蚀环境下pH值、SO2-4浓度、时间多因素的多元线性回归的水泥土强度Q-T,pH,S模型,经对比预测值与实测值,证明两者比较接近,差值说明模型的具有一定的可行性,可供工程设计参考.
|
| 关 键 词： | 水泥土 H2SO4环境 抗压强度 模型 |
The Multiple Linear Regression Strength Model of Cemented Soil under H_2SO_4 Corrosive Environment |
| |
| CHEN Jin-zhong,HAN Peng-ju,BAI Xiao-hong. The Multiple Linear Regression Strength Model of Cemented Soil under H_2SO_4 Corrosive Environment[J]. Building Science, 2009, 25(9) |
| |
| Authors: | CHEN Jin-zhong HAN Peng-ju BAI Xiao-hong |
| |
| Affiliation: | 1.Nanjing Communications Institute of Technology;Nanjing 211188;China;2.College of Architectural & Civil Engineering;Taiyuan University of Technology;Taiyuan 030024;China |
| |
| Abstract: | In order to simulate and study the corrosion effect process such as the changes of corrosive degree of surface and unconfined compression strength of cemented soil samples aged from 0 day to 28 days under different pH values and SO~(2-)_4 concentrations of corrosive solutions,a series of tests were conducted on the cemented soil blocks.The results of test show that the corrosive degree of samples surface is increasing and the unconfined compression strength is decreasing with the increase of corrosive solut... |
| |
| Keywords: | cemented soil H_2SO_4 corrosive environment compressive strength model |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
