

浏览全部资源
扫码关注微信
1.南京大学地球科学与工程学院,江苏 南京210023
2.华北科技学院(中国煤矿安全技术培训中心)计算机学院,北京101601
3.苏州南智传感科技有限公司,江苏 苏州 215123
Received:29 September 2022,
Revised:2023-07-17,
Published:15 February 2024
移动端阅览
刘天翔,朱鸿鹄,程刚等.地下连续墙受力变形光纤监测与数值模拟研究[J].防灾减灾工程学报,2024,44(01):222-233.
LIU Tianxiang,ZHU Honghu,CHENG Gang,et al.Fiber Optic Monitoring and Numerical Simulation of Stress and Deformation of Diaphragm Wall[J].Journal of Disaster Prevention and Mitigation Engineering,2024,44(01):222-233.
刘天翔,朱鸿鹄,程刚等.地下连续墙受力变形光纤监测与数值模拟研究[J].防灾减灾工程学报,2024,44(01):222-233. DOI: 10.13409/j.cnki.jdpme.20220929002.
LIU Tianxiang,ZHU Honghu,CHENG Gang,et al.Fiber Optic Monitoring and Numerical Simulation of Stress and Deformation of Diaphragm Wall[J].Journal of Disaster Prevention and Mitigation Engineering,2024,44(01):222-233. DOI: 10.13409/j.cnki.jdpme.20220929002.
地下连续墙是一种常见的深基坑支护方式,具有刚度大、防渗性能好、适应范围广等优点,但其受力变形规律较为复杂。基于超弱光纤光栅感测技术,对某地铁车站基坑地下连续墙水平位移进行实时监测。将监测数据与数值模拟结果进行对比,验证了数值分析模型选取的合理性,并基于该数值分析模型研究了不同厚度软土层中,地下连续墙水平位移的变化规律,通过墙体位移梯度(
D
w
)和软土位移梯度(
D
r
)进行临界厚度比计算。研究结果显示:水平位移随软土厚度的变化呈“凸肚”状,沿深度方向划分为相对稳定区、线性增长区、最大变形区和线性下降区。利用
D
w
和
D
r
标定出临界厚度比为0.24;土压力变化在基坑前四步开挖过程中较为稳定,而在第五步开挖与施工后40 d变化显著。上述研究结果为类似工程的设计、施工和监测方案的制定提供了重要参考。
As a common support method in deep excavation, diaphragm walls have complex stress and deformation regulation, making them a hot research topic in excavations. In this paper, based on the fiber Bragg grating sensing technology, the horizontal displacements of a diaphragm wall of a subway station were measured. The monitoring data was compared with the numerical simulation results, and the rationality of the numerical analysis model was verified. Based on the numerical analysis model, the variation law of the horizontal displacement of the underground diaphragm wall in the soft soil layer of different thicknesses was studied. The critical thickness ratio was calculated by the wall displacement gradient
D
w
and the soft soil displacement gradient
D
r
. The results show that the variation of horizontal displacement of the diaphragm wall with the thickness of soft soil is generally in a shape of "convex belly". The deformation of the diaphragm wall can be divided into relatively stable zone, linear growth zone, maximum deformation zone and linear decline zone along the depth direction. The critical thickness ratio
α
cr
was calibrated as 0.24 using
D
w
and
D
r
. The earth pressure is relatively stable in the first four excavation processes, but changes significantly after 40 days of excavation in the fifth excavation process. The research results provide a valuable reference for the design, construction, and monitoring schemes of similar projects.
刘国彬 , 王卫东 . 基坑工程手册 [M]. 北京 : 中国建筑工业出版社 , 2009 .
Liu G B , Wang W D . Foundation Pit engineering manual [M]. Beijing : China Construction Industry Press , 2009 . (in Chinese)
郑刚 , 朱合华 , 刘新荣 , 等 . 基坑工程与地下工程安全及环境影响控制 [J]. 土木工程学报 , 2016 , 49 ( 6 ): 1 - 24 .
Zheng G , Zhu H H , Liu X R , et al . Control of safety of deep excavations and underground engineering and its impact on surrounding environment [J]. China Civil Engineering Journal , 2016 , 49 ( 6 ): 1 - 24 . (in Chinese)
朱鸿鹄 , 叶肖伟 , 冉龙 . 基于现场实测数据的深基坑工程可靠度研究 [J]. 铁道工程学报 , 2011 , 28 ( 9 ): 7 - 11 .
Zhu H H , Ye X W , Ran L . Reliability analysis of deep excavation based on field monitoring data [J]. Journal of Railway Engineering Society , 2021 , 28 ( 9 ): 7 - 11 . (in Chinese)
Guo P , Gong X , Wang Y . Displacement and force analyses of braced structure of deep excavation considering unsymmetrical surcharge effect [J]. Computers and Geotechnics , 2019 , 113 ( 9 ): 103102 .
曹净 , 钱国伟 , 杨泽帅 , 等 . 基于等效桁架模型的基坑双排桩结构计算模型研究 [J]. 防灾减灾工程学报 , 2018 , 38 ( 6 ): 943 - 949 .
Cao J , Qian G W , Yang Z S , et al . Study on calculation model of double-row piles retaining wall based on equivalent truss model [J]. Journal of Disaster Prevention and Mitigation Engineering 2018 , 38 ( 6 ): 943 - 949 . (in Chinese)
应宏伟 , 李涛 , 杨永文 , 等 . 深基坑隔断墙保护邻近建筑物的效果与工程应用分析 [J]. 岩土工程学报 , 2011 , 33 ( 7 ): 1123 - 1128 .
Ying H W , Li T , Yang Y W , et al . Effect and application of partition walls in protecting adjacent buildings from deep foundation pits [J]. Chinese Journal of Geotechnical Engineering , 2011 , 33 ( 7 ): 1123 - 1128 . (in Chinese)
李钊 , 刘庭金 . 深厚砂层下深基坑施工的实测分析 [J]. 地下空间与工程学报 , 2013 , 9 ( 增1 ): 1688 - 1693 .
Li Z , Liu T J . Measurement analysis on construction of deep foundation pit in deep thick sand layer [J]. Chinese Journal of Underground Space and Engineering , 2013 , 9 ( Sup1 ): 1688 - 1693 . (in Chinese)
Tan Y , Lu Y . Responses of shallowly buried pipelines to adjacent deep excavations in Shanghai soft ground [J]. Journal of Pipeline Systems Engineering and Practice , 2018 , 9 ( 2 ): 05018002 .
尚国文 , 李飒 , 翟超 , 等 . 基坑开挖与邻近地铁结构变形相关性的实测分析 [J]. 防灾减灾工程学报 , 2020 , 40 ( 1 ): 107 - 115 .
Shang G W , Li S , Zhe C , et al . Monitoring data analysis on deformation correlation between foundation pit and adjacent metro structure [J]. Journal of Disaster Prevention and Mitigation Engineering , 2020 , 40 ( 1 ): 107 - 115 . (in Chinese)
徐中华 , 王建华 , 王卫东 . 上海地区深基坑工程中地下连续墙的变形性状 [J]. 土木工程学报 , 2008 , 41 ( 8 ): 81 - 86 .
Xu Z H , Wang J H , Wang W D . Deformation behavior of diaphragm walls in deep excavations in Shanghai [J]. China Civil Engineering Journal , 2008 , 41 ( 8 ): 81 - 86 . (in Chinese)
Tan Y , Wang D L . Characteristics of a large-scale deep foundation pit excavated by the central-island technique in Shanghai soft clay. I: Bottom-up construction of the central cylindrical shaft [J]. Journal of Geotechnical and Geoenvironmental Engineering , 2013 , 139 ( 11 ): 1875 - 1893 .
Tan Y , Wang D L . Characteristics of a large-scale deep foundation pit excavated by the central-island technique in Shanghai soft clay. II: Top-down construction of the peripheral rectangular pit [J]. Journal of Geotechnical and Geoenvironmental Engineering , 2013 , 139 ( 11 ): 1894 - 1910 .
丁勇春 , 程泽坤 , 王建华 , 等 . 临江基坑变形及受力性状三维数值分析 [J]. 岩土工程学报 , 2012 , 34 ( 增1 ): 243 - 247 .
Ding Y C , Cheng Z K , Wang J H , et al . Three-dimensional numerical analysis of deformation and mechanical behavior of deep excavations adjacent to river [J]. Chinese Journal of Geotechnical Engineering , 2012 , 34 ( Supl ): 243 - 247 . (in Chinese)
王建华 , 徐中华 , 陈锦剑 , 等 . 上海软土地区深基坑连续墙的变形特性浅析 [J]. 地下空间与工程学报 , 2005 , 1 ( 4 ): 485 - 489 .
Wang J H , Xu Z H , Chen J J , et al . Deformation properties of diaphragm wall due to deep excavation in Shanghai soft soil [J]. Chinese Journal of Underground Space and Engineering , 2005 , 1 ( 4 ): 485 - 489 . (in Chinese)
武朝军 , 陈锦剑 , 叶冠林 , 等 . 苏州地铁车站基坑变形特性分析 [J]. 岩土工程学报 , 2010 , 32 ( 增1 ): 458 - 462 .
Wu C J , Chen J J , Ye G L , et al . Deformation characteristics of foundation pits of subway stations in Suzhou [J]. Chinese Journal of Geotechnical Engineering , 2010 , 32 ( Sup1 ): 458 - 462 . (in Chinese)
Ou Y , Hsieh P G , Chiou D C . Characteristics of ground surface settlement during excavation [J]. Canadian Geotechnical Journal , 1993 , 30 ( 5 ): 758 - 767 .
罗耀武 , 凌道盛 , 陈云敏 , 等 . 环形超深基坑围护结构受力变形特性分析 [J]. 岩土力学 , 2011 , 32 ( 2 ): 617 - 622 .
Luo Y W , Ling D S , Chen Y M , et al . Mechanical and deformation characteristics of enclosure structure for annular extra-deep excavation [J]. Rock and Soil Mechanics , 2011 , 32 ( 2 ): 617 - 622 . (in Chinese)
谢百钩 , 简绍琦 , 欧章煜 . 黏土层中深基坑挡土墙最大变形量简易评估法 [J]. 岩石力学与工程学报 , 2012 , 31 ( 11 ): 2285 - 2290 .
Xie B G, Jian S Q, Ou Z Y, A simplified evaluation method for maximum wall deflection induced by deep excavation in clay [J]. Chinese Journal of Rock Mechanics and Engineering , 2012 , 31 ( 11 ): 2285 - 2290 . (in Chinese)
丁智 , 王达 , 王金艳 , 等 . 浙江地区软弱土深基坑变形特点及预测分析 [J]. 岩土力学 , 2015 , 36 ( 增1 ): 506 - 512 .
Ding Z , Wang D , Wang J Y , et al . Deformation characteristics of Zhejiang soft soil deep foundation pits and their predictive analysis [J]. Rock and Soil Mechanics , 2015 , 36 ( Sup1 ): 506 - 512 . (in Chinese)
应宏伟 , 王小刚 , 郭跃 , 等 . 逆作法基坑支护结构三维 m 法及工程应用 [J]. 岩土工程学报 , 2019 , 41 ( 增1 ): 37 - 40 .
Ying H W , Wang X G , Guo Y , et al . Three-dimensional m method for retaining structures and its application for top-down construction of excavations [J]. Chinese Journal of Geotechnical Engineering , 2019 , 41 ( Sup1 ): 37 - 40 . (in Chinese)
俞缙 , 陈国平 , 姜天鹤 , 等 . 支腿式地下连续墙支护结构现场监测分析研究 [J]. 岩土工程学报 , 2010 , 32 ( 增1 ): 447 - 451 .
Yu J , Chen G P , Jiang T H , et al . Field monitoring results of support structure of outrigger-type diaphragm wall [J]. Chinese Journal of Geotechnical Engineering , 2010 , 32 ( Sup1 ): 447 - 451 . (in Chinese)
朱鸿鹄 , 施斌 , 严珺凡 , 等 . 基于分布式光纤应变感测的边坡模型试验研究 [J]. 岩石力学与工程学报 , 2013 , 32 ( 4 ): 821 - 828 .
Zhu H H , Shi B , Yan J F , et al . Physical model testing of slope stability based on distributed fiber-optic strain sensing technology [J]. Chinese Journal of Rock Mechanics and Engineering , 2013 , 32 ( 4 ): 821 - 828 . (in Chinese)
朱鸿鹄 , 殷建华 , 靳伟 , 等 . 基于光纤光栅传感技术的地基基础健康监测研究 [J]. 土木工程学报 , 2010 , 43 ( 6 ): 109 - 115 .
Zhu H H , Yin J H , Jin W , et al . Health monitoring of foundations using fiber Bragg grating sensing technology [J]. China Civil Engineering Journal , 2010 , 43 ( 6 ): 109 - 115 . (in Chinese)
朱鸿鹄 . 工程地质界面:从多元表征到演化机理 [J]. 地质科技通报 , 2023 , 42 ( 1 ): 1 - 19 .
Zhu H H . Engineering geological interface: From multivariate characterization to evolution mechanism [J]. Bulletin of Geological Science and Technology , 2023 , 42 ( 1 ): 1 - 19 . (in Chinese)
董鹏 , 夏开文 , 于长一 , 等 . 浅埋隧道覆岩变形沉降的分布式光纤监测与分析 [J]. 防灾减灾工程学报 , 2019 , 39 ( 5 ): 724 - 732 .
Dong P , Xiao K W , Yu C Y , et al . Monitoring and analysis of stratum deformation and subsidence overlying a shallow tunnel using distributed optical fiber sensing technology [J]. Journal of Disaster Prevention and Mitigation Engineering , 2019 , 39 ( 5 ): 724 - 732 . (in Chinese)
王静 , 肖涛 , 朱鸿鹄 , 等 . 透水管桩现场试验光纤监测与承载性能研究 [J]. 岩土力学 , 2021 , 42 ( 7 ): 1961 - 1970 .
Wang J , Xiao T , Zhu H H , et al . Study on bearing capacity of permeable pipe pile by field optical fiber monitoring [J]. Rock and Soil Mechanics , 2021 , 42 ( 7 ): 1961 - 1970 . (in Chinese)
Han H M , Shi B , Zhang L , et al . Deep displacement monitoring and foundation base boundary reconstruction analysis of diaphragm wall based on ultra-weak FBG [J]. Tunnelling and Underground Space Technology , 2021 , 117 : 104158 .
Ye X , Zhu H H , Wang J , et al . Subsurface multi-physical monitoring of a reservoir landslide with the fiber-optic nerve system [J]. Geophysical Research Letters , 2022 , 49 : e2022 GL098211.
刘小丽 , 马悦 , 郭冠群 , 等 . PLAXIS 2D模拟计算基坑开挖工程的适用性分析 [J]. 中国海洋大学学报(自然科学版) , 2012 , 42 ( 4 ): 19 - 25 .
Liu X L , Ma Y , Guo G Q , et al . Applicability analysis of PLAXIS 2D simulation calculation for foundation pit excavation engineering [J]. Journal of Ocean University of China (Natural Science Edition) , 2012 , 42 ( 4 ): 19 - 25 . (in Chinese)
张如林 , 徐奴文 . 基于PLAXIS的深基坑支护设计的数值模拟 [J]. 结构工程师 , 2010 , 26 ( 2 ): 131 - 136 .
Zhang R L , Xu N W . Numerical simulation of timbering design of deep foundation pits based on PLAXIS [J]. Structural Engineers , 2010 , 26 ( 2 ): 131 - 136 . (in Chinese)
朱瑶宏 , 叶俊能 , 刘晓虎 , 等 . 宁波轨道交通地下连续墙深基坑工程变形特性及控制研究 [J]. 水文地质工程地质 , 2012 , 39 ( 4 ): 66 - 73 .
Zhu Y H , Ye J N , Liu X H , et al . Study on deformation characteristics and control of deep foundation pit of underground diaphragm wall in Ningbo Rail Transit [J]. Hydrogeology&Engineering Geology , 2012 , 39 ( 4 ): 66 - 73 . (in Chinese)
Yoo C . Behavior of braced and anchored walls in soils overlying rock [J]. Journal of Geotechnical and Geoenvironmental Engineering , 2001 , 127 ( 3 ): 225 - 233 .
Long M . Database for retaining wall and ground movements due to deep excavations [J]. Journal of Geotechnical and Geoenvironmental Engineering, ASCE 2001 , 127 ( 3 ): 203 - 224 .
周学明 , 袁良英 , 蔡坚强 , 等 . 上海地区软土分布特征及软土地基变形实例浅析 [J]. 上海地质 , 2005 , 26 ( 4 ): 6 - 9 .
Zhou X M , Yuan L Y , Cai J Q , et al . Distribution characteristics of soft soil and deformation examples of soft soil foundation in Shanghai [J]. Shanghai Geology , 2005 , 26 ( 4 ): 6 - 9 . (in Chinese)
0
Views
0
下载量
1
CSCD
Publicity Resources
Related Articles
Related Author
Related Institution
苏公网安备32010202012147号