盾构法联络通道T接部位受力特性测试研究
PDF下载 (361)邓建林,何寨兵,李海波,周 晔,黄 强,朱瑶宏,胡 威.盾构法联络通道T接部位受力特性测试研究[J].宁波大学学报(理工版),2022,35(6):22-27.DOI:
DENG Jianlin,HE Zhaibing,LI Haibo,ZHOU Ye,HUANG Qiang,ZHU Yaohong,HU Wei.Field measurement on the mechanical characteristics of the T-type intersection during the construction of shield-driven cross passage[J].Journal of Ningbo University(Natural Science & Engineering Edition),2022,35(6):22-27.DOI:
| Title: | Field measurement on the mechanical characteristics of the T-type intersection during the construction of shield-driven cross passage |
| 作者: | 邓建林, 何寨兵, 李海波, 周 晔, 黄 强, 朱瑶宏, 胡 威 |
| Author(s): | DENG Jianlin, HE Zhaibing, LI Haibo, ZHOU Ye, HUANG Qiang, ZHU Yaohong, HU Wei |
| 关键词: | 盾构法联络通道; T接部位; 联络通道施工; 现场测试; 管片内力; 土压力 |
| Keywords: | shield-driven cross passage; T-type intersection; cross passage construction; field measurement; segmental inner force; soil pressure |
| 分类号: | U456.3 |
| 文献标识码: | A |
| 摘要: | 利用混凝土应变计与土压计联合测试装置实测了不同施工阶段接收端主隧道与联络通道的管片弯矩、轴力及土压力. 结果表明, 不同施工工况下的T接部位内力变化存在显著差异, 主隧道弯矩受施工过程的影响较环向轴力更为明显, 而联络通道的内力变化规律则相反; 台车就位和千斤顶顶撑作用对主隧道的内力影响较大, 而管片切削过程的影响较小. |
| Abstract: | The joint measurement device composed of concrete strain sensor and soil pressure sensor was utilized to measure the segmental inner forces of the receiving main tunnel and cross passage as well as the surrounding soil pressure. The measured results indicate that there are evident discrepancies between different construction stages. The segmental moment of the main tunnel is more prone to being affected by the construction than the circumferential axial force, while an opposite situation exists for the cross passage. Segmental inner forces are significantly influenced by the placement of construction trolley and the exertion of supporting load from the oil jack, however the segment cutting of the main tunnel has little effect on its inner force. |
| 参考文献 /References: | [1] 白云, 汤竞. 上海地下工程建设中的经验和教训[J]. 土木工程学报, 2007, 40(5):105-110. [2] 朱瑶宏, 王靖禹, 董子博, 等. 盾构法联络通道密封垫设计及防水试验研究[J]. 隧道建设, 2019, 39(1):110- 118. [3] 林萍, 叶冠林, 陈楠, 等. 冻结法施工旁通道的冻土压力现场监测方法[J]. 岩土力学, 2011, 32(8):2555-2560. [4] 李大勇, 吕爱钟, 张庆贺, 等. 南京地铁旁通道冻结实测分析研究[J]. 岩土力学与工程学报, 2004, 23(2):334- 338. [5] 光辉, 高燕, 胡俊. 软土地区某隧道联络通道施工地表沉降监测分析[J]. 公路工程, 2017, 42(3):95-98. [6] 吕虎. 隧道联络通道施工力学行为研究[D]. 上海: 同济大学, 2006. [7] 李雪, 周顺华, 王培鑫, 等. 盾构隧道实测土压力分布规律及影响因素研究[J]. 岩土力学, 2014, 35(S2):453- 459. [8] 唐孟雄, 陈如桂, 陈伟. 广州地铁盾构隧道施工中管片受力监测与分析[J]. 土木工程学报, 2009, 42(3):118- 124. [9] 刘用海. 宁波软土工程特性及其本构模型应用研究[D]. 杭州: 浙江大学, 2008. [10] 刘国彬, 王印昌. 实测钢筋计应力推算地下连续墙弯矩方法探讨[J]. 地下工程与隧道, 2003(1):6-12. |
| 备注/Memo: | 收稿日期:2021-11-01.宁波大学学报（理工版）网址:http://journallg.nbu.edu.cn/ 基金项目:国家自然科学基金（52008214）;宁波市科技计划公益项目（2019C50013）. 第一作者:邓建林（1966－）,男,浙江嘉兴人,教授级高级工程师,主要研究方向:轨道交通建设管理.E-mail:561387293@qq.com 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
