基于精细化模型的初期支护安全性评价*

doi:10.16265/j.cnki.issn1003-3033.2019.S1.030

中国安全科学学报 ›› 2019, Vol. 29 ›› Issue (S1): 168-172.doi: 10.16265/j.cnki.issn1003-3033.2019.S1.030

基于精细化模型的初期支护安全性评价^*

伍毅敏¹ 副教授, 蔡直言¹, 傅鹤林¹ 教授, 徐文浩² 工程师, 戴路生³ 高级工程师, 马哲³ 工程师

1 中南大学土木工程学院,湖南长沙 410075;
2 中铁工程设计咨询集团有限公司,北京 100055;
3 国家铁路局工程质量监督中心,北京 100891

收稿日期:2019-04-07 修回日期:2019-06-10 出版日期:2019-06-30
作者简介:伍毅敏 (1980—),男,江西南康人,博士,副教授,主要从事隧道病害防控、智能建造等方面的研究。E-mail:wuyimin531@163.com。
基金资助:
国家自然科学基金资助(51478473);中国铁路总公司重点科技研究开发计划项目(K2018G019)。

Safety evaluation of initial support based on refined model

WU Yimin¹, CAI Zhiyan¹, FU Helin¹, XU Wenhao², DAI Lusheng³, MA Zhe³

1 School of Civil Engineering, Central South University, Changsha Hunan 410075,China;
2 Railway Engineering Consulting Group Co. Ltd., Beijing 100055,China;
3 Center of Engineering Quality Supervision, National Railway Administration, Beijing 100891, China

Received:2019-04-07 Revised:2019-06-10 Published:2019-06-30

摘要/Abstract

摘要： 为更准确地评价实际施做的隧道初期支护结构的安全性,考虑几何尺寸、材料构成与力学参数,提出一种精细化分析评价方法。首先通过激光点云等技术获得隧道开挖轮廓,据此建立初期支护的精细化几何模型,然后考虑超挖部分采用素混凝土填充的特点,将初期支护分为钢拱架混凝土构成的标准区域和素混凝土构成的超挖区域,应用ANSYS建立精细化计算模型,计算分析允许变形量和安全系数。结合某铁路隧道,考虑超挖并采用精细化化模型分析,结果表明:与不考虑超挖相比,实际初期支护结构的允许变形量大幅减低,不同部位的安全系数则有增有减,在工程实践中逐段或逐榀进行安全管控更为科学。

关键词: 隧道工程, 超欠挖, 初期支护, 异形结构, 数值分析, 安全评价

Abstract: To evaluate the safety of the initial support structure of the tunnel more accurately, in consideration of the geometrical dimensions, material composition and mechanical parameters, a precise evaluation method is proposed. Firstly, the tunnel excavation profile was obtained by laser-point cloud technology, and then the precise geometric model of the initial support was established according to it. Then, considering the characteristics that the super-excavation part was filled with plain concrete, the initial support was divided into standard area consist of steel arch concrete and over-excavation area consist of plain concrete. ANSYS was used to establish a precise calculation model, and the allowable deformation amount and safety factor were calculated and analyzed. Combining with a certain railway tunnel, and considering the over-excavation and the use of the precise model to analyze, the results show that the allowable deformation of the actual initial support structure is greatly reduced compared with that without considering over-excavation. Some of the safety factors of different parts are increased and some are decreased. It is more scientific to carry out the safety control section-by-section in engineering practice.

Key words: tunnel engineering, over-under-excavation, initial support, profiled structure, numerical analysis, safety evaluation

中图分类号:

X913.4

伍毅敏, 蔡直言, 傅鹤林, 徐文浩, 戴路生, 马哲. 基于精细化模型的初期支护安全性评价^*[J]. 中国安全科学学报, 2019, 29(S1): 168-172.

WU Yimin, CAI Zhiyan, FU Helin, XU Wenhao, DAI Lusheng, MA Zhe. Safety evaluation of initial support based on refined model[J]. China Safety Science Journal, 2019, 29(S1): 168-172.

参考文献

[1] 刘辉, 张智超, 王林娟.2004—2008年我国隧道施工事故统计分析[J].中国安全科学学报,2010,20(1):96-100.
LIU Hui, ZHANG Zhichao, WANG Linjuan. Statistical analysis on safety accidents of tunnel construction from 2004 to 2008 in China[J]. China Safety Science Journal, 2010, 20(1):96-100.
[2] 佘健, 钟新樵.公路隧道超欠挖统计规律研究[J].重庆交通学院学报,2000,19(2):15-20.
SHE Jian, ZHONG Xinqiao. Study of statistical law on over-under-excavated values of highway tunnels[J]. Journal of Chongqing Jiaotong University,2000,19(2):15-20.
[3] 王明年, 万姜林, 杨其新. 隧道超欠挖的力学效果分析[J].西南交通大学学报,1996,31(6):3-8.
WANG Mingnian,WAN Jianglin,YANG Qixin. Mechanical state analysis of tunnel overbreak and underbreak[J]. Journal of Southwest Jiaotong University, 1996, 31(6):3-8.
[4] 王明年, 关宝树. 隧道超挖对围岩内应力状态的影响[J]. 铁道学报,1997,19(2):86-90.
WANG Mingnian, GUAN Baoshu. Tunnel overbreak influence on stress state of surrounding rock[J]. Journal of the China Railway Society, 1997,19(2):86-90.
[5] 王明年, 关宝树. 隧道超欠挖的统计规律及其对隧道可靠度的影响[J]. 岩土工程学报,1997,19(1):83-88.
WANG Mingnian, GUAN Baoshu. Statistical law of tunnel over-under-excavation and its influence on tunnel reliability[J]. Chinese Journal of Geotechnical Engineering,1997,19(1):83-88.
[6] 万姜林. 隧道超欠挖力学效应的研究[J]. 西部探矿工程,2000(6):70-72.
WAN Jianglin. Study on the mechanic effect of over-excavation and owing-excavation of tunnel[J]. West Exploration Engineering,2000(6):70-72.
[7] 吴剑, 仇文革. 隧道衬砌厚度分布规律及结构可靠性分析[J]. 现代隧道技术,2004,41(1):22-25.
WU Jian, QIU Wenge. Regularity of the distribution of the thickness of tunnel linings and structure reliability analysis[J]. Modern Tunnel Technology,2004,41(1):22-25.
[8] 施成华, 彭立敏. 连拱隧道不同施工阶段结构体系可靠度计算[J]. 岩土力学,2008,29(5):1 299-1 304.
SHI Chenghua, PENG Limin. Reliability calculation of structural system in different construction stages of continuous arch tunnel[J].Rock and Soil Mechanics, 2008,29(5):1 299-1 304.
[9] 施成华, 雷明锋, 彭立敏. 隧道衬砌结构体系可靠度研究[J]. 铁道科学与工程学报,2010,7(4):20-24.
SHI Chenghua, LEI Mingfeng, PENG Limin. Study on the system reliability of tunnel lining[J]. Journal of Railway Science and Engineering, 2010,7(4):20-24.
[10] 佘健. 衬砌厚度的变异性对隧道结构可靠度的影响[J]. 重庆交通学院学报,1994,13(增1):83-90.
SHE Jian. Influence of variability of lining thickness on reliability of tunnel structure[J]. Journal of Chongqing Jiaotong University, 1994,13(S1):83-90.
[11] 鲁文斌. 隧道超欠挖异形结构围岩压力在线监测与评价技术研究[D].长沙:中南大学,2013.
LU Wenbin. Study on situ monitor and evaluation technology for surrounding rock pressure caused by over-break or under-break during tunnel construction[D]. Changsha: Central South University, 2013.
[12] 伍毅敏, 张军, 何先虎,等.一种隧道围岩和结构状况的双轨扫描系统.中国,CN207215039U[P]. 2018-04-10.

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基于精细化模型的初期支护安全性评价^*

Safety evaluation of initial support based on refined model

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