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| 膨胀性充填裂隙峰前本构关系实验研究 | |
| 引用本文： | 陈金刚,徐平,张龚,李亚帮.膨胀性充填裂隙峰前本构关系实验研究[J].岩土力学,2011,32(10):2998-3003. |
| 作者姓名： | 陈金刚 徐平 张龚 李亚帮 |
| 作者单位： | 1. 郑州大学工程力学系,郑州,450001 2. 郑州大学水利与环境学院,郑州,450001 3. 郑州大学土木工程学院,郑州,450001 |
| 基金项目： | 国家自然科学基金资助项目(No.50709030,No.51008286); 郑州大学国家大学生创新性实验资助项目(No.091045927) |
| 摘 要： | 以钠基膨润土为充填介质,水泥砂浆为裂隙壁制作充填裂隙,采用法向压缩、侧向约束的方式,对不同宽度和不同含水率条件下膨胀性充填裂隙的本构关系进行了探讨,获得了大量应力、应变实验数据.研究表明,膨胀性充填裂隙峰前本构关系可划分为3个阶段:流变阶段、压密阶段和弹性阶段.实验开始时,充填裂隙即进入流变状态,也就是说应力基本保持不... |
| 关 键 词： | 膨胀性介质 充填裂隙 本构关系 单轴压缩 倒圣维南体 |
| 收稿时间： | 2010-06-22 |
Experimental research on pre-peak constitutive relation of filled fracture with expansive medium |
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| CHEN Jin-gang,XU Ping,ZHANG Yan,LI Ya-bang.Experimental research on pre-peak constitutive relation of filled fracture with expansive medium[J].Rock and Soil Mechanics,2011,32(10):2998-3003. | |
| Authors: | CHEN Jin-gang XU Ping ZHANG Yan LI Ya-bang |
| Institution: | 1. Department of Engineering Mechanics, Zhengzhou University, Zhengzhou 450001, China; 2. School of Water Conservancy and Environment, Zhengzhou University, Zhengzhou 450001, China; 3. School of Civil Engineering , Zhengzhou University, Zhengzhou, 450001, China |
| Abstract: | Taking Na-bentonite as filling medium and cement mortar as fissure wall,the filled fractures are made.By means of normal compression and lateral restraint,the constitutive relations of filled fracture with expansive medium and under the conditions of different fracture widths and different water contents,are discussed.A large number of stress-strain data are obtained.It is shown that the fractures filled with expansive medium can be divided into three stages: rheological phase,compression phase and the elas... |
| Keywords: | expansive media filled fracture constitutive relation uniaxial compression inverted Saint-Venant body |
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