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| 深埋隧洞TBM开挖损伤区形成与演化过程的数字钻孔摄像观测与分析 | |
| 引用本文： | 李邵军,冯夏庭,张春生,李占海,周辉,侯靖,褚卫江. 深埋隧洞TBM开挖损伤区形成与演化过程的数字钻孔摄像观测与分析[J]. 岩石力学与工程学报, 2010, 29(6): 1106-1112 |
| 作者姓名： | 李邵军 冯夏庭 张春生 李占海 周辉 侯靖 褚卫江 |
| 作者单位： | 1. 中国科学院武汉岩土力学研究所,岩土力学与工程国家重点实验室,湖北,武汉,430071 2. 中国水电顾问集团,华东勘测设计研究院,浙江,杭州,310014 3. 东北大学,资源与土木工程学院,辽宁,沈阳,110004 |
| 基金项目： | 国家重点基础研究发展计划(973)项目，国家科技支撑计划课题，中国科学院、国家外国专家局创新团队国际合作伙伴计划 |
| 摘 要： | 以锦屏II级水电站3#引水隧洞为研究对象,通过事先开挖的平行于引水隧洞的2-1#试验支洞,利用数字钻孔摄像技术,对TBM掘进过程中围岩的开挖损伤区进行原位测试。基于对一系列不同时段的360°钻孔全景数字图像的综合分析,给出岩体的结构特性,得到隧洞开挖全过程中围岩裂隙的产生、发展和闭合的演化过程,分析该施工条件下的开挖损伤区范围、裂隙演化与TBM施工的关系,并探讨开挖损伤区的形成和演化机制。研究成果为现场支护设计、支护时机、围岩变形特性和地质资料分析提供直接依据。 |
| 关 键 词： | 隧道工程 深埋隧洞 开挖损伤区 数字全景钻孔摄像机 |
| 收稿时间： | 2010-02-11 |
| 修稿时间： | 2010-03-25 |
TESTING ON FORMATION AND EVOLUTION OF TBM EXCAVATION DAMAGED ZONE IN DEEP-BURIED TUNNEL BASED ON DIGITAL PANORAMIC BOREHOLE CAMERA TECHNIQUE |
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| LI Shaojun,FENG Xiating,ZHANG Chunsheng,LI Zhanhai,ZHOU Hui,HOU Jing,CHU Weijiang. TESTING ON FORMATION AND EVOLUTION OF TBM EXCAVATION DAMAGED ZONE IN DEEP-BURIED TUNNEL BASED ON DIGITAL PANORAMIC BOREHOLE CAMERA TECHNIQUE[J]. Chinese Journal of Rock Mechanics and Engineering, 2010, 29(6): 1106-1112 | |
| Authors: | LI Shaojun FENG Xiating ZHANG Chunsheng LI Zhanhai ZHOU Hui HOU Jing CHU Weijiang |
| Affiliation: | LI Shaojun1,FENG Xiating 1,ZHANG Chunsheng 2,LI Zhanhai 3,ZHOU Hui 1,HOU Jing 2,CHU Weijiang 2(1.State Key Laboratory of Geomechanics and Geotechinical Engineering,Institute of Rock and Soil Mechanics,Chinese Academy of Sciences,Wuhan,Hubei 430071,China,2.East China Investigation and Design Institution Under CHECC,Hangzhou,Zhejiang 310014,3.School of Resources and Civil Engineering,Northeastern University,Shenyang,Liaoning 110004,China) |
| Abstract: | It presents the in-situ test on excavation damaged zone(EDZ) evolution of TBM tunnel No.3 in Jinping II hydropower station using digital panoramic borehole camera.Firstly,through the pre-excavated diversion tunnel No.2-1,several boreholes vertical to sidewall of TBM tunnel No.3 are drilled for digital camera,and a series of digital images of borehole wall are obtained during the whole TBM driven time.Afterwards,the images will be digitally processed;geological structural surface and fractures of surrounding... |
| Keywords: | tunnelling engineering deep-buried tunnel excavation damaged zone(EDZ) digital panoramic borehole camera |
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