[1]李尧,董星,曹校勇,等.超深竖井侧压力计算方法[J].长安大学学报(自然科学版),2024,44(4):87-96.[doi:10.19721/j.cnki.1671-8879.2024.04.008]
　LI Yao,DONG Xing,CAO Xiao-yong,et al.Lateral rock mass pressure calculation method for extra deep vertical shafts[J].Journal of Chang’an University (Natural Science Edition),2024,44(4):87-96.[doi:10.19721/j.cnki.1671-8879.2024.04.008]
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超深竖井侧压力计算方法()
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长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
第44卷
期数:
2024年4期
页码:
87-96
栏目:
桥梁与隧道工程
出版日期:
2024-07-10

文章信息/Info

Title:
Lateral rock mass pressure calculation method for extra deep vertical shafts
文章编号:
1671-8879(2024)04-0087-10
作者:
李尧1; 董星1; 曹校勇2; 徐平2; 陈星历1
(1. 长安大学 公路学院,陕西 西安 710064; 2. 中交第一公路勘察设计研究院有限公司,陕西 西安 710075)
Author(s):
LI Yao1;  DONG Xing1;  CAO Xiao-yong2;  XU Ping2;  CHEN Xing-li1
(1. School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China; 2. CCCC First Highway Consultants Go., Ltd., Xi'an 710075, Shaanxi, China)
关键词:
隧道工程;  竖井;  侧压力;  径向应力;  切向应力
Keywords:
tunnel engineering;  vertical shaft;  lateral rock mass pressure;  radial stress;  tangential stress
分类号:
U455.43
DOI:
10.19721/j.cnki.1671-8879.2024.04.008
文献标志码:
A
摘要:
中国公路隧道竖井设计与施工主要借鉴煤炭、冶金等行业的经验,尽管在超深竖井建设方面取得了瞩目的成就,但相关设计理论远滞后于工程实践,在多座超特长隧道中超深竖井的建设过程中遇到多种挑战。针对隧道工程中超深竖井围岩压力计算难题,基于天台山2号竖井设计参数,结合已有实测围岩应力和损伤特征,使用三维有限差分模拟方法,假定爆破损伤区范围为1 m,建立560 m深竖井(包含Ⅲ-Ⅴ级围岩)数值模型,分析围岩应力分布特征,建立超深竖井侧压力计算方法。结果表明:围岩塑性区在竖井开挖线外1～2.5 m处; 塑性区范围在同级围岩内随埋深增大而增大,在接近围岩等级变化处时减小; 损伤区内围岩应力远小于其他区域,大主应力为切向应力,围岩成环作用显著; 损伤区外的塑性区内大主应力为垂直应力。竖井开挖并支护后,竖井周边围岩应力状态显著变化,径向应力随埋深增加而持续增加,在接近围岩级别变化处和竖井底部时开始减小。围岩级别的改变显著影响切向应力和垂直应力的大小,而对径向应力影响较小。相比现行《公路隧道设计细则》(JTG/T D70—2010)推荐方法,提出的计算方法所得围岩压力更小,且更接近类似工程的实测结果和模拟结果,可为超深竖井围岩压力计算提供参考。
Abstract:
The design and construction of highway tunnel shafts in China mainly relies on the experience of coal, metallurgy, and other industries. Despite significant accomplishments in constructing ultra-deep shafts, the design theory in this area significantly lags behind engineering practice. Throughout the construction of super-deep shafts in many long tunnels, numerous challenges have been faced. In order to address the issue of calculating the surrounding rock pressure in super-deep shafts for tunnel engineering, a three-dimensional finite difference simulation method was utilized based on the design parameters of the Tiantaishan No.2 Shaft. The measured stress and damage characteristics of the surrounding rock was used, assumed a 1 m range for the blasting damage zone and a 560 m-deep numerical model of the shaft(comprising grade Ⅲ-Ⅴ surrounding rock)was established. The analysis focused on the stress distribution characteristics of the surrounding rock and developed a calculation method for the lateral pressure of ultra-deep shafts. The results show that the plastic zone of the surrounding rock extended 1 to 2.5 m beyond the shaft excavation line, with the range of the plastic zone increasing with burial depth in the same level of surrounding rock and decreasing near changes in surrounding rock grade. The inner surrounding rock exhibited lower stress compared to other areas, with the major principal stress being tangential stress and a significant ring formation effect in the surrounding rock. Additionally, the major principal stress in the plastic zone outside the damage area is vertical stress. After the excavation and support of the shaft, there is a noticeable change in the stress state of the surrounding rock. Radial stress increases with depth, decreases near the changing point of rock mass level and the bottom of the shaft. Variations in the surrounding rock level have a significant impact on tangential and vertical stress levels, while radial stress remains relatively unaffected. The proposed calculation method in this study showed smaller surrounding rock pressure, compared to the current recommended method in the Guidelines for Design of Highway Tunnel(JTG/T D70—2010), and closely matched measured and simulated results from similar projects. This method can serve as a valuable reference for calculating rock pressure in ultra-deep shaft enclosures.3 tabs, 19 figs, 21 refs.

参考文献/References:

[1] 朱松耆.基岩中圆形竖井地压的计算[J].有色金属(矿山部分),1978,30(1):27-32.
ZHU Song-qi.Calculation of ground pressure of circular shaft in bedrock[J].Nonferrous Metals(Mining),1978,30(1):27-32.
[2]李 仑.黄土:古土壤互层条件下深竖井土压力研究[D].西安:西安理工大学,2023.
LI Lun.Study on earth pressure of deep shaft under the condition of loess-paleosol interlayer[D].Xi'an:Xi'an University of Technology,2023.
[3]周 健.基于短段掘砌混合作业法的深大硬岩竖井荷载理论[D].成都:西南交通大学,2020.
ZHOU Jian.Load theory of deep hard rock shaft based on short-section excavation and masonry mixed operation method[D].Chengdu:Southwest Jiaotong University,2020.
[4]胡 伟.竖井侧压力的计算方法及数值模拟[D].长沙:中南大学,2014.
HU Wei.The research of calculation methods for lateral pressure on shaft lining and its numerical simulations[D].Changsha:Central South University,2014.
[5]史育峰.公路隧道大直径通风竖井围岩压力计算及施工优化效果研究[D].西安:长安大学,2022.
SHI Yu-feng.Study on surrounding rock pressure calculation and construction optimization effect of large diameter ventilation shaft in highway tunnel[D].Xi'an:Changan University,2022.
[6]钟应伟.深厚第四系流砂层竖井井筒稳定性研究[D].湘潭:湖南科技大学,2013.
ZHONG Ying-wei.Research on stability of thick quaternary quicksand stratum[D].Xiangtan:Hunan University of Science and Technology,2013.
[7]朱正国,安辰亮,朱永全,等.地铁深竖井土压力理论研究[J].岩石力学与工程学报,2013,32(增2):3776-3783.
ZHU Zheng-guo,AN Chen-liang,ZHU Yong-quan,et al.Theoretical study of earth pressure in deep vertical shafts of subway[J].Journal of Rock Mechanics and Engineering,2013,32(S2):3776-3783.
[8]周 健.基于短段掘砌混合作业法的深大硬岩竖井荷载理论[D].成都:西南交通大学,2021.
ZHOU Jian.Load theory of deep and large hard rock shafts based on the hybrid operation method of short section excavation[D].Chengdu:Southwest Jiaotong University,2021.
[9]郭继林,张俊儒,李小刚,等.一种改进的硬质岩深竖井反井施工技术及竖井围岩压力取值探讨[J].隧道建设,2016,36(5):585-591.
GUO Ji-lin,ZHANG Jun-ru,LI Xiao-gang,et al.An Improved raise-boring method for hard-rock deep vertical shaft and discussion on determination of surrounding rock pressure[J].Tunnel Construction,2016,36(5):585-591.
[10]马英明.深表土竖井地压的计算方法[J].煤炭科学技术,1979,7(1):16-22.
MA Ying-ming.Calculation method of shaft ground pressure in deep topsoil[J].Coal Science and Technology,1979,7(1):16-22.
[11]杜良平.终南山隧道大直径深竖井围岩稳定性研究[D].上海:同济大学,2008.
DU Liang-ping.Surrounding rock stability study of Zhongnanshan large section and deep shaft[D].Shanghai:Tongji University,2008.
[12]赵东平,吴 楠,李 华,等.隧道超深竖井设计施工技术研究现状及展望[J].铁道勘察,2022,48(3):10-16,25.
ZHAO Dong-ping,WU Nan,LI Hua,et al.Research status and prospect of design and construction technology of ultra-deep shaft for tunnel[J].Railway Investigation and Surveying,2022,48(3):10-16,25.
[13]马兆伟.秦岭天台山隧道通风竖井围岩压力分布特征研究[D].焦作:河南理工大学,2021.
MA Zhao-wei.Study on pressure distribution characteristics of surrounding rock in ventilation shaft of Tiantaishan Tunnel in Qinling Mountains[D].Jiaozuo:Henan Polytechnic University,2021.
[14]崔广心.深厚表土中竖井井壁的外载[J].岩土工程学报,2003,25(3):294-298.
CUI Guang-xin.Loading of shaft lining for deep alluvium[J].Chinese Journal of Geotechnical Engineering,2003,25(3):294-298.
[15]徐志伟,周国庆,赵晓东.深厚表土静止土压力系数变化规律试验研究[J].岩土工程技术,2007,21(2):64-66.
XU Zhi-wei,ZHOU Guo-qing,ZHAO Xiao-dong.Experimental research on static earth pressure coefficient distribution rule of deep soil[J].Geotechnical Engineering Technique,2007,21(2):64-66.
[16]赵春风,费 逸,赵 程,等.无黏性土中钻孔径向卸荷收缩理论解[J].哈尔滨工业大学学报,2020,52(4):135-141.
ZHAO Chun-feng,FEI Yi,ZHAO Cheng,et al.Analytical solution for borehole contraction caused by radial unloading in cohesiveless soil[J].Journal of Harbin Institute of Technology,2020,52(4):135-141.
[17]李海亮,刘光军,王晓川.公路隧道通风竖井围岩压力计算问题探讨[J].工程技术研究,2019,4(20):6-7.
LI Hai-liang,LIU Guang-jun,WANG Xiao-chuan.Discussion on calculation of surrounding rock pressure of ventilation shaft in highway tunnel[J].Engineering and Technological Research,2019,4(20):6-7.
[18]周 荣.大坪里隧道竖井施工过程数值模拟与研究[D].武汉:华中科技大学,2007.
ZHOU Rong.Study on numerical simulation on construction processing for a silo of the Dapingli Tunnel[D].Wuhan:Huazhong University of Science and Technology,2007.
[19]史宁强,史作璟,童晨材,等.地铁车站通风竖井围岩侧压力特征及拐点预测[J].地下空间与工程学报,2021,17(增1):196-202.
SHI Ning-qiang,SHI Zuo-jing,TONG Chen-cai et al.Lateral pressure characteristics of surrounding rock and inflection point prediction of ventilation shaft in subway station[J].Chinese Journal of Underground Space and Engineering,2021,17(S1):196-202.
[20]曹程明,龙 照,时轶磊,等.小尺寸深竖井侧壁内力与变形分布规律计算分析[J].地下空间与工程学报,2022,18(增1):51-56,73.
CAO Cheng-ming,LONG Zhao,SHI Yi-lei,et al.Distribution regulation calculation and analysis of internal force and deformation in side wall of small-size deep shaft[J].Chinese Journal of Underground Space and Engineering,2022,18(S1):51-56,73.
[21]蒲 松,张 睿,方 勇,等.硬岩竖井爆破损伤区探测及衬砌荷载[J].中国安全生产科学技术,2021,17(10):85-91.
PU Song,ZHANG Rui,FANG Yong,et al.Detection on blasting damage zone of hard rock shaft and lining load[J].Journal of Safety Science and Technology,2021,17(10):85-91.
[9]《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.
[10]LIAM FINN W D.Applications of limit plasticity in soil mechanics[J].Journal of the Soil Mechanics and Foundations Division,1967,93(5):101-120.
[11]徐 强,刘 勇,宋玉香,等.基于松动圈理论深埋黄土隧道围岩压力计算方法[J].科学技术与工程,2021,21(23):10054-10060.
XU Qiang,LIU Yong,SONG Yu-xiang,et al.A method for calculating surrounding rock pressure of deep loess tunnel based on loose broken rock zone theory[J].Science Technology and Engineering,2021,21(23):10054-10060.
[12]李 科,郭鸿雁.姜路岭炭质页岩隧道围岩压力合理取值研究[J].现代隧道技术,2018,55(增2):315-322.
LI Ke,GUO Hong-yan.Study on reasonable value of surrounding rock pressure of Jiangluling Carbonaceous Shale Tunnel[J].Modern Tunnelling Technology,2018,55(S2):315-322.
[18]罗彦斌,陈建勋.土质浅埋隧道CRD法施工中隔壁变形监测与分析[J].现代隧道技术,2011,48(6):105-109.
LUO Yan-bin,CHEN Jian-xun.Monitoring and analysis of the deformation of the middle wall during the construction of a shallow soil tunnel by the CRD method[J].Modern Tunnelling Technology,2011,48(6):105-109.
[19]师凯强,夏 琼,黄志军,等.华家岭黄土隧道实测的围岩变形规律及二衬安全性分析[J].兰州交通大学学报,2022,41(5):13-22.
SHI Kai-qiang,XIA Qiong,HUANG Zhi-jun,et al.The measured deformation law of surrounding rock and the safety analysis of the secondary lining of Huajialing Loess Tunnel[J].Journal of Lanzhou Jiaotong University,2022,41(5):13-22.

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　LIU Hui,LI Bo,WU Cong-shi,et al.Analysis on effects of vibration resulted from driving blasting in Karst tunnel[J].Journal of Chang’an University (Natural Science Edition),2010,30(4):56.
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备注/Memo

备注/Memo:
收稿日期:2024-01-09
基金项目:陕西省“特支计划”青年拔尖人才支持项目; 中交第一公路勘察设计研究院有限公司科创基金项目(JTBZ2019-05))
作者简介:李 尧(1989-),男,新疆乌鲁木齐人,副教授,博士研究生导师,E-mail:yao.li@chd.edu.cn。
更新日期/Last Update: 2024-07-10