硬岩地层大断面暗挖车站主动支护设计及其接口段施工技术

doi:10.19952/j.cnki.2096-5052.2021.02.10

摘要
参考文献
相关文章
推荐阅读
Metrics

下载:

PDF (23202KB)
输出: BibTeX | EndNote (RIS)

摘要根据青岛硬岩地层地铁车站实际开挖情况,采用预应力锚杆代替传统中空注浆锚杆,对暗挖车站拱部及侧墙进行主动支护设计,优化格栅间距及喷砼厚度,实现Ⅳ级围岩段大跨暗挖车站的全程台阶法开挖。数值分析及现场施工监测结果表明,本支护方案安全可行。将暗挖车站与风道接口段施工方法进行对比分析,结合主动支护理念,优化风道进主体施工方法,通过外扩风道上半断面,预留型钢拱架支撑条件,实现台阶法挑高进洞施工,其受力转换明确,施工安全高效便捷。

	服务
	把本文推荐给朋友
	加入引用管理器
	E-mail Alert
	RSS
	（）
	作者相关文章
	王庆瀚
	赵继增
	田宁

关键词: 硬岩地层大跨暗挖车站预应力锚杆主动支护接口段施工技术

Abstract: According to the hard rock stratum of Qingdao subway tunnel, the prestressed anchor rod, instead of the traditional hollow grouting anchor rod, was used for active support of the arch and side wall of the underground excavation station. The grid spacing and shotcrete thickness was optimized. The excavation of large section tunnel in grade Ⅳ surrounding rock in step method was realized. The numerical analysis and monitoring measurement results showed that the support scheme was safe and feasible. The construction methods of the underground excavation station and the air duct was compared and analyzed. Combined with the active support technology, the technology of construction through air duct was optimized, the upper half section of the duct was expanded and section steel frame supporting conditions was reserved. The construction in step method was realized, with clear force conversion, which was safe, efficient and convenient.

Key words: hard rock stratum large-span underground excavated station active support of prestressed anchor rod intersection construction technology

收稿日期: 2021-04-24 修回日期: 2021-06-05 发布日期: 2021-06-20

中图分类号:

U231.4

作者简介: 王庆瀚(1989— ),男,辽宁抚顺人,硕士,工程师,主要研究方向为隧道与地下结构工程. E-mail:904377655@qq.com

引用本文:

王庆瀚, 赵继增, 田宁. 硬岩地层大断面暗挖车站主动支护设计及其接口段施工技术[J]. 隧道与地下工程灾害防治, 2021, 3(2): 86-96.
WANG Qinghan, ZHAO Jizeng, TIAN Ning. Active support design and intersection construction technology for large-span underground excavation station in hard rock stratum. Hazard Control in Tunnelling and Underground Engineering, 2021, 3(2): 86-96.

链接本文:

http://tunnel.sdujournals.com/CN/Y2021/V3/I2/86

[1] 李汶京. 降低暗挖地铁车站施工风险的几个关键点[J]. 铁道标准设计, 2009, 53(10): 1-4. LI Wenjing. Several key points to reduce risks in construction of mining metro station[J]. Railway Standard Design, 2009, 53(10): 1-4.
[2] 郑甲佳, 来弘鹏. 系统锚杆在黄土地铁隧道支衬体系中的作用分析[J]. 工程勘察, 2011,39(4): 13-17. ZHENG Jiajia, LAI Hongpeng. Analysis on the function of system rockbolts in support liner system of loess subway tunnel[J]. Geotechnical Investigation & Surveying, 2011, 39(4): 13-17.
[3] 陈建勋, 乔雄, 王梦恕. 黄土隧道锚杆受力与作用机制[J]. 岩石力学与工程学报, 2011, 30(8): 1690-1697. CHEN Jianxun, QIAO Xiong, WANG Mengshu. Stress and action mechanism of rock bolt in loess tunnel[J]. Chinese Journal of Rock Mechanics and Engineering, 2011, 30(8): 1690-1697.
[4] 赵东平,王卢伟,喻渝, 等. 隧道系统锚杆研究现状与发展方向[J]. 土木工程学报, 2020, 53(8): 116-128. ZHAO Dongping,WANG Luwei,YU Yu,et al.Research status and development direction of tunnel system bolt[J].China Civil Engineering Journal, 2020, 53(8): 116-128.
[5] 陈建勋,杨善胜,罗彦斌, 等. 软弱围岩隧道取消系统锚杆的现场试验研究[J]. 岩土力学, 2011, 32(1): 15-20. CHEN Jianxun, YANG Shansheng, LUO Yanbin, et al. Field test research on elimination of systematic rock bolts in weak rock tunnel[J]. Rock and Soil Mechanics, 2011, 32(1): 15-20.
[5] 何满潮, 李晨, 宫伟力, 等. NPR锚杆/索支护原理及大变形控制技术[J]. 岩石力学与工程学报, 2016, 35(8): 1513-1529. HE Manchao, LI Chen, GONG Weili, et al. Support principles of NPR bolts/cables and control techniques of large deformation[J]. Chinese Journal of Rock Mechanics and Engineering, 2016, 35(8): 1513-1529.
[7] 宫伟力,朱道勇,王炯,等. 基于模型试验的NPR锚索支护巷道变形及能量方程验证[J]. 采矿与安全工程学报, 2020,37(5): 918-927. GONG Weili, ZHU Daoyong, WANG Jiong, et al. Deformation and energy equation verification of NPR anchor cable support roadway based on model test[J]. Journal of Mining & Safety Engineering, 2020, 37(5): 918-927.
[8] 李克先,李术才,赵继增.大跨度暗挖地铁车站开挖工序优化研究[J].地下空间与工程学报,2017,13(5):1329-1337. LI Kexian, LI Shucai, ZHAO Jizeng. Study on optimizing excavation construction of large span subway station[J]. Chinese Journal of Underground Space and Engineering, 2017, 13(5): 1329-1337.
[9] 张秀山.拱盖法暗挖地铁车站设计中的岩层适应性数值模拟研究[J].工程建设与设计,2020(7):103-106. ZHANG Xiushan. Numerical simulation of rock adaptability of subway station with arch cover method[J]. Construction & Design for Engineering, 2020(7): 103-106.
[10] 中华人民共和国住房和城乡建设部. 城市轨道交通工程监测技术规范:GB50911—2013[S]. 北京:中国建筑工业出版社,2013.
[11] 王伟,张真煌.地铁风道进主体车站暗挖施工门式钢架支护技术[J].隧道建设,2012,32(增刊2):157-161. WANG Wei, ZHANG Zhenhuang. Construction technologies for gate-type steel frame support of connection section between ventilation gallery and main structure of metro tunnel[J]. Tunnel Construction, 2012, 32(Suppl.2): 157-161.
[12] 杨宏射. 地铁暗挖车站风道与车站主体交叉段及马头门处系统锚杆与钢架联体支护技术[J].隧道建设,2014, 34(9): 900-907. YANG Hongshe. Technology for supporting consisting of systematic bolts and steel arches applied in construction of ingate and junction section between ventilation tunnel and main body of metro station[J]. Tunnel Construction, 2014, 34(9):900-907.
[13] 罗彦斌,陈建勋,王梦恕.隧道斜交横通道施工对主隧道衬砌结构的影响研究[J].岩石力学与工程学报,2010,29(增刊2):3792-3798. LUO Yanbin, CHEN Jianxun, WANG Mengshu. Study of influence of skew horizontal adit tunnel construction on main tunnel lining structure[J]. Chinese Journal of Rock Mechanics and Engineering, 2010, 29(Suppl.2): 3792-3798.

[1]	王庆瀚,张恒臻,李克先. 大跨暗挖车站无柱中板结构内力分析及施工技术[J]. 隧道与地下工程灾害防治, 2020, 2(4): 83-90.

[1]	QIAN Qihu. Scientific use of the urban underground space to construction the harmonious livable and beautiful city[J]. Hazard Control in Tunnelling and Underground Engineering, 2019, 1(1): 1 -7 .
[2]	DENG Mingjiang, LIU Bin. Challenges, countermeasures and development direction of geological forward-prospecting for TBM cluster tunneling in super-long tunnels[J]. Hazard Control in Tunnelling and Underground Engineering, 2019, 1(1): 8 -19 .
[3]	DING Xiuli, ZHANG Yuting, ZHANG Chuanjian, YAN Tianyou, HUANG Shuling. Review on countermeasures and their adaptability evaluation to tunnels crossing active faults[J]. Hazard Control in Tunnelling and Underground Engineering, 2019, 1(1): 20 -35 .
[4]	JIAO Yuyong, ZHANG Weishe, OU Guangzhao, ZOU Junpeng, CHEN Guanghui. Review of the evolution and mitigation of the water-inrush disaster in drilling-and-blasting excavated deep-buried tunnels[J]. Hazard Control in Tunnelling and Underground Engineering, 2019, 1(1): 36 -46 .
[5]	ZHANG Qingsong, ZHANG Lianzhen, LI Peng, FENG Xiao. New progress in grouting reinforcement theory of water-rich soft stratum in underground engineering[J]. Hazard Control in Tunnelling and Underground Engineering, 2019, 1(1): 47 -57 .
[6]	XIA Kaiwen, XU Ying, CHEN Rong. Dynamic tests of rocks subjected to simulated deep underground environments[J]. Hazard Control in Tunnelling and Underground Engineering, 2019, 1(1): 58 -75 .
[7]	HONG Kairong. Study on rock breaking and wear of TBM hob in high-strength high-abrasion stratum[J]. Hazard Control in Tunnelling and Underground Engineering, 2019, 1(1): 76 -85 .
[8]	TAN Zhongsheng. Application experimental study of high-strength lattice girders with heat treatment in tunnel engineering[J]. Hazard Control in Tunnelling and Underground Engineering, 2019, 1(1): 86 -92 .
[9]	CHEN Jianxun, LUO Yanbin. The stability of structure and its control technology for lager-span loess tunnel[J]. Hazard Control in Tunnelling and Underground Engineering, 2019, 1(1): 93 -101 .
[10]	JING Hongwen, YU Liyuan, SU Haijian, GU Jincai, YIN Qian. Development and application of catastrophic experiment system for water inrush in surrounding rock of deep tunnels[J]. Hazard Control in Tunnelling and Underground Engineering, 2019, 1(1): 102 -110 .

Viewed

Full text

Abstract

Cited

Shared

Discussed