| 寒区隧道围岩变形机理分析初探 |
| |
| 引用本文： | 张全胜,高广运,杨更社,蒲毅彬.寒区隧道围岩变形机理分析初探[J].岩土力学,2007,28(2):307-310. |
| |
| 作者姓名： | 张全胜 高广运 杨更社 蒲毅彬 |
| |
| 作者单位： | 1. 同济大学 地下建筑与工程系，上海 200092；2. 西安科技大学 建筑与土木工程学院，西安 710054； 3. 中国科学院寒区旱区环境与工程研究所 冻土工程国家重点实验室，兰州 730000； |
| |
| 摘 要： | 隧道围岩冻胀变形机理是寒区隧道工程常见的问题之一。首先评述了国内外现有关于寒区隧道冻胀机理的几种解释，然后对采自西部某寒区岩样进行饱水冻结，通过CT扫描技术观察了岩体内部细观结构变化、水分迁移，发现了围岩冻结后发生收缩的现象，从细观角度研究了岩体的冻胀和收缩机理，完善和补充了围岩冻胀机理假说。
|
| 关 键 词： | 寒区隧道 围岩 冻结 CT扫描 损伤力学 |
| 文章编号： | 1000-7598-（2007）02-0307-05 |
| 收稿时间： | 2005-06-28 |
| 修稿时间： | 2005-06-282005-10-11 |
A study of freezing deformation of tunnel surrounding rock in cold region |
| |
| ZHANG Quan-sheng,GAO Guang-yun,YANG Geng-she,PU Yi-bin.A study of freezing deformation of tunnel surrounding rock in cold region[J].Rock and Soil Mechanics,2007,28(2):307-310. |
| |
| Authors: | ZHANG Quan-sheng GAO Guang-yun YANG Geng-she PU Yi-bin |
| |
| Institution: | 1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 2. College of Architecture and Civil Engineering, Xi’an University of Science & Technology, Xi’an 710054, China; 3. State Key Laboratory of Frozen Soil Engineering, Cold And Arid Environmental Research Institute,CAS, Lanzhou 730000, China |
| |
| Abstract: | As is known to all that the freezing-heaving mechanism of tunnel surrounding rock is a common problem of the tunnel in the cold region. Firstly, the several existent theories about freezing-heaving mechanism are introduced and evaluated. Secondly, the freezing experiment of rock sample is mode; after saturated, the rock samples from a cold region in West China. The CT scanning technology is applied to measure the meso-structure change of rock sample and the water transfer within the sample. The shrinkage phenomenon in volume has been found after the rock sample frozen. Finally, the freezing-heaving mechanism of tunnel surrounding rock is studied, which is believable to be helpful to the tunnel in the cold region. |
| |
| Keywords: | tunnel in the cold region surrounding rock freezing CT scanning damage mechanics |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《岩土力学》浏览原始摘要信息 |
| 点击此处可从《岩土力学》下载免费的PDF全文 |
