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| 麦秸秆加筋石灰土的抗剪强度及剪切破坏形式 | |
| 引用本文： | 李敏,柴寿喜,杜红普,魏丽,石茜.麦秸秆加筋石灰土的抗剪强度及剪切破坏形式[J].深圳大学学报(理工版),2011,28(1):65-71. |
| 作者姓名： | 李敏 柴寿喜 杜红普 魏丽 石茜 |
| 作者单位： | 1. 兰州大学,西部灾害与环境力学教育部重点实验室,兰州,730000;天津城市建设学院,天津市软土特性与工程环境重点实验室,天津,300384 2. 天津城市建设学院,天津市软土特性与工程环境重点实验室,天津,300384 3. 河北工业大学土木工程学院,天津,300401 4. 兰州大学,西部灾害与环境力学教育部重点实验室,兰州,730000 |
| 基金项目： | 国家自然科学基金资助项目，天津市高等学校科技发展基金资助项目 |
| 摘 要： | 选取整体均匀布筋、上部均匀布筋和下部均匀布筋3种布筋位置,借助三轴压缩实验,研究布筋位置对麦秸秆加筋石灰土抗剪强度的影响及3种布筋位置加筋土的破坏形式.结果表明,布筋位置主要影响土的黏聚力,对内摩擦角的影响较小,适宜的麦秸秆布筋方式可有效提高土的黏聚力;石灰土呈脆性破坏,3种布筋位置的麦秸秆加筋石灰土的破坏均在未加筋区域产生,加筋部位土的变形较小;石灰土和麦秸秆加筋石灰土的破坏面倾角均符合Mohr-Coulomb破坏准则和SMP(spatial mobilization plane)破坏准则.借助麦秸秆的高抗拉性能、空间交织作用和筋土摩擦作用,可有效约束土的变形,提高土的强度. |
| 关 键 词： | 工程力学 加筋土 抗剪强度 布筋位置 破坏形态 麦秸秆 滨海盐渍土 |
Shear strength and failure form of lime-soil reinforced with wheat straw |
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| LI Min,CHAI Shou-xi,DU Hong-pu,WEI Li,SHI Qian.Shear strength and failure form of lime-soil reinforced with wheat straw[J].Journal of Shenzhen University(Science &engineering),2011,28(1):65-71. | |
| Authors: | LI Min CHAI Shou-xi DU Hong-pu WEI Li SHI Qian |
| Affiliation: | LI Min1,2,CHAI Shou-xi2,DU Hong-pu3,WEI Li2,and SHI Qian1 1)Key Laboratory of Mechanics on Disaster and Environment in Western China,The Ministry of Education of ChinaLanzhou UniversityLanzhou 730000 P.R.China 2)Tianjin Key Laboratory of Soft Soil Characteristics and Engineering Environment,Tianjin Institute of Urban Construction,Tianjin 300384 P.R.China 3)College of Civil Engineering,Hebei University of Technology,Tianjin 300401 P.R.China |
| Abstract: | The reinforcement effect and strength of reinforced soil depending on a suitable reinforced position and triaxial shear test for reinforced lime-soil with wheat straw in three positions was carried out in this paper.First,reinforced position mainly affects the cohesion of reinforced soil,but has little influence on the internal friction angle;reasonable reinforced position plays an important role in improving strength of reinforced soil.Second,lime-soil displays failure in brittle manner;failure of reinforc... |
| Keywords: | engineering mechanics reinforced soil shear strength reinforced position failure form wheat straw inshore saline soil |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
