|
|||||
|
|
| 具有衬砌的圆形水工隧洞弹塑性应力统一解 | |
| 引用本文： | 张常光,张庆贺,赵均海,徐飞.具有衬砌的圆形水工隧洞弹塑性应力统一解[J].同济大学学报(自然科学版),2010,38(1). |
| 作者姓名： | 张常光 张庆贺 赵均海 徐飞 |
| 作者单位： | 1. 同济大学,岩土及地下工程教育部重点实验室,上海,200092;同济大学,地下建筑与工程系,上海,200092 2. 长安大学,建筑工程学院,陕西,西安,710061 3. 上海市政第一工程有限公司,上海,200083 |
| 摘 要： | 针对具有衬砌的圆形水工隧洞,假定衬砌与围岩位移连续,考虑不同工况下主应力顺序、岩石应变软化和中间主应力等综合影响,采用统一强度理论和弹脆塑性软化模型,推导衬砌和围岩弹塑性应力统一解.选取不同的统一强度理论参数,可得到一系列应力场公式及塑性区半径与内压力的关系.通过工程算例分析知,考虑第一主应力的变化是正确的,更符合工程实际,并得出统一强度理论参数、软化特性参数对衬砌和围岩切向应力的影响规律.研究结果表明,统一强度理论参数和软化特性参数对衬砌与围岩塑性区切向应力的影响显著. |
| 关 键 词： | 圆形水工隧洞 隧道工程 统一强度理论 衬砌 |
Elastic-plastic Stress Unified Solutions of a Circular Hydraulic Tunnel with Lining |
|
| ZHANG Changguang,ZHANG Qinghe,ZHAO Junhai and XU Fei.Elastic-plastic Stress Unified Solutions of a Circular Hydraulic Tunnel with Lining[J].Journal of Tongji University(Natural Science),2010,38(1). | |
| Authors: | ZHANG Changguang ZHANG Qinghe ZHAO Junhai and XU Fei |
| Institution: | ZHANG Changguang1,2,ZHANG Qinghe1,ZHAO Junhai3,XU Fei4(1.Key Laboratory of Geotechnical , Underground Engineering of the Ministry of Education,Tongji University,Shanghai 200092,China,2.Department of Geotechnical Engineering,3.College of Civil Engineering,Chang\'an University,Xi\'an 710061,4.Shanghai No.1 Municipal Engineering Co.Ltd.,Shanghai 200083,China) |
| Abstract: | The displacement between surrounding rock and lining assumed to be the consecutive,the elastic-plastic stress unified solutions of a circular hydraulic tunnel with lining are obtained based on unified strength theory and elastic-brittle-plastic softening model by taking into consideration the effects of principal stress orders in different engineering conditions,rock strain softening,and the intermediate principal stress.A series of stress fields and the plastic radius versus inner pressures are obtained by... |
| Keywords: | circular hydraulic tunnel tunnel engineering unified strength theory lining |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《同济大学学报(自然科学版)》浏览原始摘要信息 | |
| 点击此处可从《同济大学学报(自然科学版)》下载免费的PDF全文 | |