| 三面围合盾构隧道底板注浆对地下通道结构的影响 |
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| 引用本文： | 覃涛,冯云,郭健,杨潇,黄沛.三面围合盾构隧道底板注浆对地下通道结构的影响[J].河北工程大学学报,2020,37(1):1-6. |
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| 作者姓名： | 覃涛 冯云 郭健 杨潇 黄沛 |
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| 作者单位： | 同济大学 地下建筑与工程系,上海200092,上海市隧道工程轨道交通设计研究院,上海200235,同济大学 地下建筑与工程系,上海200092,武汉地铁集团有限公司,湖北 武汉430030,长安大学 土木工程学院,陕西 西安710061 |
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| 基金项目： | 国家自然科学基金资助项目（51608042） |
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| 摘 要： | 通过理论推导得出在三面围合状态下盾构隧道施工时,地下通道底板下注浆压力的分布规律,计算确定了合理的注浆压力,并探讨了注浆压力对地下通道结构的影响。结果表明底板注浆能抵消隧道推进引起的结构变形,甚至产生新的附加变形。当土体损失率越大时,底板注浆对地下通道结构的影响越大。
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| 关 键 词： | 三面围合 盾构隧道 底板注浆 |
| 收稿时间： | 2019/11/22 0:00:00 |
Impact of Grouting of Shield Tunnel in Three-sided Enveloped Space on the Structure of Underground Road |
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| Authors: | QIN Tao FENG Yun GUO Jian YANG Xiao HUANG Pei |
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| Affiliation: | Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China,Shanghai Tunnel Engineering & Rail Transit Design and Research Institute, Shanghai 200235, China,Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China,Wuhan Metro Group Co., Ltd, Wuhan 430030, China and School of Civil Engineering, Chang''an University, Xi''an 710061, China |
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| Abstract: | Based on the theoretical derivation, the distribution law of the grouting pressure of the underground road during the construction of the shield tunnel in three-sided enveloped space was obtained. The reasonable grouting pressure was calculated and the influence of the grouting pressure on the structure of the underground tunnel was discussed. The results show that the grouting pressure can offset the structural deformation caused by the shield tunneling and even generate new additional deformation. When the soil loss rate is larger, the influence of the grouting on the structure of the underground road is greater. |
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| Keywords: | three-side enveloped situation shield tunneling grouting below underground road |
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