[1]刘顺水.软弱地层下穿高铁超大矩形顶管盾构隧道施工稳定性研究[J].高速铁路技术,2023,14(02):6-12.[doi:10.12098/j.issn.1674-8247.2023.02.002]
LIU Shunshui.A Study on Stability of Super-large Rectangular Pipe-jacking Shield Tunnel for High-speed Railway Underpassing Soft Ground[J].HIGH SPEED RAILWAY TECHNOLOGY,2023,14(02):6-12.[doi:10.12098/j.issn.1674-8247.2023.02.002]
点击复制
软弱地层下穿高铁超大矩形顶管盾构隧道施工稳定性研究()
《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]
- 卷:
-
14卷
- 期数:
-
2023年02期
- 页码:
-
6-12
- 栏目:
-
- 出版日期:
-
2023-04-30
文章信息/Info
- Title:
-
A Study on Stability of Super-large Rectangular Pipe-jacking Shield Tunnel for High-speed Railway Underpassing Soft Ground
- 文章编号:
-
1674-8247(2023)02-0006-07
- 作者:
-
刘顺水
-
海峡(福建)交通工程设计有限公司,福州350004
- Author(s):
-
LIU Shunshui
-
Haixia (Fujian) Transportation Engineering Design Co. , Ltd. , Fuzhou? 350004 ,China
-
- 关键词:
-
矩形顶管盾构; 软弱地层; 施工稳定性; 近接施工
- Keywords:
-
rectangular pipe jacking shield; soft ground; stability; approaching construction
- 分类号:
-
U452.2+8
- DOI:
-
10.12098/j.issn.1674-8247.2023.02.002
- 文献标志码:
-
A
- 摘要:
-
为保证超大矩形顶管盾构隧道近接下穿高速铁路施工稳定性,本文依托某火车站地下通道工程,建立软弱地层近接下穿高铁超大矩形顶管盾构隧道施工力学模型,结果表明:(1)埋深因子越大,地表沉降、轨道变形和管节收敛变形越大,管节安全系数越小;(2)黏聚力因子和内摩擦角因子越大,地表沉降、轨道变形和管节收敛越小,管节安全系数越大;(3)管节因子越大,地表沉降、轨道变形和管节收敛逐渐减小,管节安全系数增加;(4)软弱地层超大矩形顶管盾构隧道近接下穿高铁施工时埋深因子越小,黏聚力因子、内摩擦角因子和管节因子越大,其施工稳定性越好。研究成果可为类似工程提供参考。
- Abstract:
-
In order to ensure the stability of super-large rectangular pipe-jacking shield tunnel near an underneath high-speed railway,the underground passage of a railway station was taken as a case for study in the paper,and a construction mechanics model of such a tunnel in soft ground was established,to study the impact of tunnel depth,stratum parameters,and element on surface settlement,track deformation,element convergence,and safety coefficient. The results show that:(1)The greater the depth is,the greater the surface settlement,track deformation,and element convergence deformation are,and the smaller the element safety factor is.(2)The greater the cohesion factor and internal friction angle factor are,the smaller the surface settlement,track deformation,and element convergence are,and the greater the element safety factor is.(3)The larger the element factor is,the smaller the surface settlement,track deformation,and element convergence are,and the safety factor of elements increases.(4)The smaller the depth is,the larger the cohesion factor,internal friction angle factor,and element factor are,and the better the construction stability is when the super-large rectangular pipe-jacking shield tunnel in soft ground is close to the construction of underpass high-speed railway. The findings may be used as reference for similar projects.
参考文献/References:
[1]朱正国,陈信宇,陈自飞,等. 盾构隧道下穿既有车站变形控制研究[J]. 高速铁路技术,2019,10(4):6 - 11. ZHU Zhengguo,CHEN Xinyu,CHEN Zifei,et al. Research on Deformation Control of Shield Tunneling under Subway Station[J]. High Speed Railway Technology,2019,10(4):6 - 11.
[2]陈湘生,徐志豪,包小华,等. 中国隧道建设面临的若干挑战与技术突破[J]. 中国公路学报,2020,33(12):1 - 14. CHEN Xiangsheng,XU Zhihao,BAO Xiaohua,et al. Challenges and Technological Breakthroughs in Tunnel Construction in China[J]. China Journal of Highway and Transport,2020,33(12):1 - 14.
[3]《中国公路学报》编辑部. 中国隧道工程学术研究综述·2015[J].中国公路学报,2015,28(5):1 - 65. Editorial Department of China Journal of Highway and Transport. Review on China’s Tunnel Engineering Research:2015[J]. China Journal of Highway and Transport,2015,28(5):1 - 65.
[4]梁荣柱,王凯超,黄亮,等. 类矩形盾构隧道纵向等效抗弯刚度解析解[J]. 岩土工程学报,2022,44(2):212 - 223. LIANG Rongzhu,WANG Kaichao,HUANG Liang,et al. Analytical Solution for Longitudinal Equivalent Bending Stiffness of Quasi-rectangular Shield Tunnels[J]. Chinese Journal of Geotechnical Engineering,2022,44(2):212 - 223.
[5]LIU Jun,LI Peinan,SHI Lai,et al. Spatial Distribution Model of the Filling and Diffusion Pressure of Synchronous Grouting in a Quasi-rectangular Shield and Its Experimental Verification[J]. Underground Space,2021,6(6):650 - 664.
[6]柳献,叶宇航,刘震,等. 连接螺栓对类矩形盾构隧道结构极限承载力影响的试验研究与分析[J]. 土木工程学报,2018,51(8):81 - 88,95. LIU Xian,YE Yuhang,LIU Zhen,et al. Experimental Investigation and Analysis on Effect of Connecting Bolts on Ultimate Bearing Capacity of Quasi-rectangular Shield Tunnel[J]. China Civil Engineering Journal,2018,51(8):81 - 88,95.
[7]魏纲,张鑫海,徐银锋. 考虑多因素的类矩形盾构施工引起土体竖向位移研究[J]. 岩石力学与工程学报,2018,37(1):199 -208. WEI Gang,ZHANG Xinhai,XU Yinfeng. Deriving Vertical Displacement of Ground Due to Quasi-rectangular Shield Tunneling Considering Multiple Factors[J]. Chinese Journal of Rock Mechanics and Engineering,2018,37(1):199 - 208.
[8]巩一凡,丁文其,龚琛杰,等. 大断面类矩形盾构隧道管片接头极限抗剪切承载力试验研究[J]. 土木工程学报,2019,52(11):120 - 128. GONG Yifan,DING Wenqi,GONG Chenjie,et al. Experimental Study on the Ultimate Shear Bearing Capacity of Segment Joint in Shield Tunnel with Large Quasi-rectangular Cross-section[J]. China Civil Engineering Journal,2019,52(11):120 - 128.
[9]HUANG Zhen,ZHANG Chenlong,MA Shaokun,et al. Study of the Mechanical Behaviour and Damage Characteristics of Three New Types of Joints for Fabricated Rectangular Tunnels Using a Numerical Approach[J]. Tunnelling and Underground Space Technology, 2021,118 :104184.
[10]张治国,师敏之,张成平,等. 类矩形盾构隧道开挖引起邻近地下管线变形研究[J]. 岩石力学与工程学报,2019,38(4):852-864. ZHANG Zhiguo,SHI Minzhi,ZHANG Chengping,et al. Research on Deformation of Adjacent Underground Pipelines Caused by Excavation of Quasi-rectangular Shields[J]. Chinese Journal of Rock Mechanics and Engineering,2019,38(4):852-864.
[11]LIN Qingtao,LU Dechun,LEI Chunming,et al. Model Test Study on the Stability of Cobble Strata during Shield Under-crossing[J]. Tunnelling and Underground Space Technology,2021,110 :103807.
[12]邓声君,肖广良,胡向东,等. 类矩形盾构隧道数值模拟研究及若干施工因素分析[J]. 现代隧道技术,2016,53(S1):232-239. DENG Shengjun,XIAO Guangliang,HU Xiangdong,et al. Numerical Simulation and Analysis of Construction Factors Affecting Quasi-rectangular Shield Tunnelling[J]. Modern Tunnelling Technology, 2016,53(S1):232-239.
[13]李培楠,石来,刘俊,等. 软土地区类矩形盾构隧道同步注浆填充扩散压力空间分布模式[J]. 中国铁道科学,2021,42(2):77-87. LI Peinan,SHI Lai,LIU Jun,et al. Spatial Distribution Mode of Diffusion Pressure of Synchronous Grouting Filling for Quasi-rectangular Shield Tunnel in Soft Soil Area[J]. China Railway Science,2021,42(2):77-87.
[14]ZHENG Bin. An Analysis of Shell Earth Pressure and Jacking Force of Quasi-rectangular Pipe Jacking with Large Cross-section:a Case Study on Underpass Project at Songhu Road-Sanmen Road in Shanghai[J]. Tunnel Construction,2021,41(10):1740-1747.
备注/Memo
- 备注/Memo:
-
收稿日期:2022-11-17
作者简介:刘顺水(1995-),男,工程师。
基金项目:国家自然科学基金项目(52178378),中铁第四勘察设计院集团有限公司科技研究开发项目 (2020K143)
更新日期/Last Update:
2023-04-30