Disturbance control technology for large diameter slurry shield crossing the sensitive zone without reinforcement conditions
WANG Huan
Disturbance control technology for large diameter slurry shield crossing the sensitive zone without reinforcement conditionsWANG Huan(China Railway 14th Construction Bureau Co., Ltd., Jinan 250014, Shandong, China
Abstract: With the rapid development of shield technology, more and more shield tunnels pass through sensitive environments. Due to the complicated construction conditions of shield tunnels, stratum disturbances will inevitably occur during the construction process, resulting in settlement on the surface and serious damage to surrounding buildings. Therefore, it is especially important to control the construction settlement effectively when the subway tunnel passes through settlement sensitive areas such as high-density shantytowns. The project of Wuhan Metro Line 8 project, Huangpu Road Station to Xujiapeng Station tunneling through high-density shantytown project was taken as the project support. The perturbation control technology of super-large diameter mudwater shield in the construction process was studied. On the basis of a brief analysis of the engineering background and the difficulties, the article optimizes the excavation parameters, including the pre-excavation building evaluation and the excavation process, so as to achieve the final adjustment of the cutting water pressure, the excavation speed and the cutter head torque during the construction process. The implementation of key technologies such as mud membrane control and secondary grouting ensured the smooth progress 2019年 - 第1卷第2期王焕: 大直径泥水盾构穿越无加固条件沉降敏感带扰动控制技术研究 \=-of excavation. The parameter control of excavation process provides reference and basis for analyzing the construction control of large-diameter shields under the old shantytown.
王焕. 大直径泥水盾构穿越无加固条件沉降敏感带扰动控制技术研究[J]. 隧道与地下工程灾害防治, 2019, 1(2): 107-113.
WANG Huan. Disturbance control technology for large diameter slurry shield crossing the sensitive zone without reinforcement conditions. Hazard Control in Tunnelling and Underground Engineering, 2019, 1(2): 107-113.
HONG Y, NG C W W, LIU G B, et al. Three-dimensional deformation behavior of a multi-propped excavation at a “greenfield” site at shanghai soft clay[J]. Tunnelling and Underground Space Technology, 2015, 45: 249-259.
[2]
BAI Yun, YANG Zhang, JIANG Zhiwei. Key protection techniques adopted and analysis of influence on adjacent buildings due to the Bund Tunnel construction[J]. Tunnelling and Underground Space Technology, 2014, 41(2): 24-34.
[3]
陈自海,陈建军,杨建辉.基于模糊层次分析法的盾构隧道施工风险分析[J].地下空间与工程学报,2013,9(6):1427-1432,1464. CHEN Zihai, CHEN Jianjun, YANG Jianhui. Analysis of construction risk of shield tunnel based on fuzzy analytic hierarchy process[J].Chinese Journal of Underground Space and Engineering, 2013, 9(6):1427-1432, 1464.
[4]
SHIRLAW J N. Observed and calculated pore pressure and deformations induced by an earth balance shield: discussion[J]. Canadian Geotechnical Journal, 2001, 32(30):476-490.
[5]
IMAMURA S, HAGIWARA Tai. Settlement trough above a model shield observed in a centrifuge[C] //Proceeding of the International Conference CENTRIFUGE 98. Tokyo, Japan: AA Balkema, 1998:713-719.
[6]
庄丽,张银屏.软土地层盾构隧道渗漏水量与沉降关系的模拟分析[J].中国建筑防水,2006(6):13-15. ZHUANG Li, ZHANG Yinping. Simulation analysis on the relationship between seepage water quantity and settlement of shield tunnel in soft ground[J].China Construction Waterproofing, 2006(6):13-15.
[7]
张金菊.盾构施工引起土体变形分析研究[D].杭州:浙江大学,2006. ZHANG Jinju. Analysis of soil deformation induced by shield construction[D].Hangzhou: Zhejiang University, 2006.
[8]
易宏伟,孙钧.盾构施工对软粘土的扰动机理分析[J].同济大学学报,2000,28(3):277-281. YI Hongwei, SUN Jun. Mechanism of shield construction disturbance to soft clay[J]. Journal of Tongji University, 2000, 28(3):277-281.
[9]
刘招伟,王梦恕,董新平.地铁隧道盾构法施工引起的地表沉降分析[J].岩石力学与工程学报,2003,22(8): 1297-1301. LIU Zhaowei, WANG Mengshu, DONG Xinping. Surface subsidence analysis caused by construction of metro tunnel shield method[J]. Chinese Journal of Rock Mechanics and Engineering, 2003, 22(8):1297-1301.
[10]
王阳. 大型越江盾构隧道工程项目的风险管理研究[D]. 上海:上海交通大学,2009. WANG Yang. A study of risk management for large-scale cross-river shield tunnel projects[D]. Shanghai: Shanghai Jiaotong University, 2009.
[11]
赵杨中. 隧道复合地层的盾构掘进技术探讨[J]. 科技创业家, 2013(18): 22. ZHAO Yangzhong. Discussion on shield digging in tunnel composite stratigraphy[J].Technological Pioneers, 2013(18): 22.
[12]
张恒.下穿立交桥盾构隧道掘进控制技术研究[D]. 西安:西南交通大学, 2009. ZHANG Heng. Study on the control technology of tunneling in underpass overpass shield tunnel[D]. Xi'an: Southwest Jiaotong University, 2009.
2019, Vol. 1 
