深埋隧洞软岩力学特性与合理参数取值研究

doi:10.13722/j.cnki.jrme.2023.1028

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Abstract In order to explore the mechanical properties and reasonable parameter values of deep buried soft rock，
the triaxial tests were conducted under high confining pressure conditions to study the mechanical properties of Silurian shale in the water diversion project from Three Gorges reservoir to Hanjiang river. Based on the experimental results，the influence of different dip angles on the mechanical properties and failure modes of shale was analyzed. Based on various methods such as experimental research，theoretical analysis，engineering analogy and inversion，and normative verification，a reasonable mechanical parameter values for deep buried soft rock is proposed. At the same time，the outer envelope of the inversion value of crustal stress was used to determine the crustal stress values for different burial depths in the soft rock cave section. Through research，it has been found that as the confining pressure increases from low to high，the cohesive force of rock samples continuously increases，and the internal friction angle continuously decreases. When the dip angle of the bedding plane is 0°，the strength of the shale sample is the highest. When the dip angle of the bedding plane is 55°，the strength is the lowest，and the rock failure surface at this angle is consistent with the bedding plane. Based on the results of triaxial compression tests，H-B strength criterion，analogy of tunnel engineering in the same stratum，and theoretical inversion using convergence constraint method，a reasonable mechanical parameter value method for deep buried soft rock is summarized，which can reflect the influence of confining pressure on the equivalent mechanical parameters of rock mass. Finally，the strength-to-stress ratio and excavation deformation were used to predict and evaluate the deformation level of deep buried soft rock in the water diversion project from Three Gorges reservoir to Hanjiang river.

Key words： rock mechanics deep-buried tunnel soft rock mechanical properties mechanical parameters deformation mechanism

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	Articles by authors
	ZHANG Maochu1
	2
	3
	YAN Tianyou2
	3
	ZHANG Guoqiang2
	3
	LI Jianhe2
	3
	WU Song2
	3

Cite this article:

ZHANG Maochu1,2,3, et al. Research on mechanical properties and reasonable parameter values#br# of soft rock in deep buried tunnel[J]. , 2024, 43(S1): 3217-3228.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2023.1028 OR https://rockmech.whrsm.ac.cn/EN/Y2024/V43/IS1/3217

[1]	钮新强，张传健. 复杂地质条件下跨流域调水超长深埋隧洞建设需研究的关键技术问题[J]. 隧道建设(中英文)，2019，39(4)：523-536.(NIU Xinqiang，ZHANG Chuanjian. Some key technical issues on construction of ultra-long deep-buried water conveyance tunnel under complex geological conditions[J]. Tunnel Construction，2019，39(4)：523-536.(in Chinese))
[2]	张广泽，邓建辉，王栋，等. 隧道围岩构造软岩大变形发生机理及分级方法[J]. 工程科学与技术，2021，53(1)：1-12.(ZHANG Guangze，DENG Jianhui，WANG Dong，et al. Mechanism and classification of tectonic-induced large deformation of soft rock tunnels[J]. Advanced Engineering Sciences，2021，53(1)：1-12.(in Chinese))
[3]	杨木高. 木寨岭隧道大变形控制技术[J]. 现代隧道技术，2019，56(2)：175-181.(YANG Mugao. Large deformation control techniques for the Muzhailing tunnel[J]. Modern Tunnelling Technology，2019，56(2)：175-181.(in Chinese))
[4]	赵福善. 兰渝铁路两水隧道高地应力软岩大变形控制技术[J]. 隧道建设(中英文)，2014，34(6)：546-553.(ZHAO Fushan. Technologies to control serious deformation of soft rocks with high ground stress：case study on Liangshui tunnel on Lanzhou—Chongqing railway[J]. Tunnel Construction，2014，34(6)：546-553.(in Chinese))
[5]	张旗，王浩杰，董鹏，等. 引汉济渭秦岭隧洞围岩变形规律与拱架受力特征研究[J]. 岩土工程学报，2023，45(10)：2 180-2 187. (ZHANG Qi，WANG Haojie，DONG Peng，et al. Deformations of surrounding rock and stress characteristics of steel arch of Hanjiang—Weihe River water diversion tunnel[J]. Chinese Journal of Geotechnical Engineering，2023，45(10)：2 180-2 187.(in Chinese))
[6]	丁秀丽，张雨霆，黄书岭，等. 隧洞围岩大变形机制、挤压大变形预测及应用[J]. 岩石力学与工程学报，2023，42(3)：521-544. (DING Xiuli，ZHANG Yuting，HUANG Shuling，et al. Mechanism of large deformation of surrounding rock masses of tunnels，prediction method of squeezing large deformation and its application[J]. Chinese Journal of Rock Mechanics and Engineering，2023，42(3)：521-544. (in Chinese))
[7]	王永刚，丁文其，刘志强，等. 木寨岭隧道大变形分级标准与支护时机研究[J]. 地下空间与工程学报，2020，16(4)：1 116-1 122. (WANG Yonggang，DING Wenqi，LIU Zhiqiang，et al. Classification standard of large deformation and construction time of second lining in Muzhailing tunnel[J]. Chinese Journal of Underground Space and Engineering，2020，16(4)：1 116-1 122.(in Chinese))
[8]	陈兴海，周航，张广泽，等. 山岭隧道大变形危险性评价的功效系数法研究[J]. 铁道工程学报，2022，39(8)：59-65.(CHEN Xinghai，ZHOU Hang，ZHANG Guangze，et al. Efficiency coefficient method for large deformation risk assessment of mountain tunnel[J]. Journal of Railway Engineering Society，2022，39(8)：59-65.(in Chinese))
[9]	张祉道. 家竹箐隧道施工中支护大变形的整治[J]. 世界隧道，1997，(1)：8-17.(ZHANG Zhidao. Treatment of large deformation in construction of Jiazhuqing tunnel[J]. Shijie Suidao，1997，(1)：8-17.(in Chinese))
[10]	陶志刚，罗森林，康宏伟，等. 公路隧道炭质板岩变形规律及蠕变特性研究[J]. 中国矿业大学学报，2020，49(5)：898-906.(TAO Zhigang，LUO Senlin，KANG Hongwei，et al. Analysis of deformation law and creep characteristics of carbonaceous slate in highway tunnel[J]. Journal of China University of Mining and Technology，2020，49(5)：898-906.(in Chinese))
[11]	马晓文，梁庆国，赵涛，等. 泥岩隧道基底围岩软化对仰拱力学特性的影响[J]. 现代隧道技术，2020，57(增1)：147-157.(MA Xiaowen，LIANG Qingguo，ZHAO Tao，et al. Impact of basements softening of mudstone tunnel on mechanical properties of invert[J]. Modern Tunnelling Technology，2020，57(Supp.1)：147-157.(in Chinese))
[12]	郑晓卿，刘建，卞康，等. 鄂西北页岩饱水软化微观机制与力学特性研究[J]. 岩土力学，2017，38(7)：2 022-2 028.(ZHENG Xiaoqing，LIU Jian，BIAN Kang，et al. Softening micro-mechanism and mechanical properties of water-saturated shale in Northwestern Hubei[J]. Rock and Soil Mechanics，2017，38(7)：2 022-2 028.(in Chinese))
[13]	李磊，谭忠盛，郭小龙，等. 挤压陡倾千枚岩地层小净距隧道大变形研究[J]. 岩石力学与工程学报，2019，38(2)：276-286.(LI Lei，TAN Zhongsheng，GUO Xiaolong，et al. Research on large deformation of tunnels with small intervals in squeezing steeply dipping phyllite strata[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(2)：276-286.(in Chinese))
[14]	STEINER R W. Tunnelling in squeezing rocks:case histories[J]. Rock Mechanics and Rock Engineering，1996，29(4)：211-246.
[15]	AGAN C. Prediction of squeezing potential of rock masses around the Suruc water tunnel[J]. Bulletin of Engineering Geology and the Environment，2016，75(2)：451-461.
[16]	周翠英，邓毅梅，谭祥韶，等. 饱水软岩力学性质软化的试验研究与应用[J]. 岩石力学与工程学报，2005，24(1)：33-38.(ZHOU Cuiying，DENG Yimei，TAN Xiangshao，et al. Experimental research on the softening of mechanical properties of soft rock and application[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(1)：33-38.(in Chinese))
[17]	周翠英，黄思宇，刘镇，等. 红层软岩软化的界面过程及其动力学模型[J]. 岩土力学，2019，40(7)：3 189-3 196.(ZHOU Cuiying，HUANG Siyu，LIU Zhen，et al. The interface process and its dynamic model of red-bed soft rock softening[J]. Rock and Soil Mechanics，2019，40(7)：3 189-3 196.(in Chinese))
[18]	何满潮，景海河，孙晓明. 软岩工程力学[M]. 北京：科学出版社，2002：21-24.(HE Manchao，JING Haihe，SUN Xiaoming. Soft rock engineering mechanics[M]. Beijing：Science Press，2002：21-24.(in Chinese))
[19]	HOEK E，MARINOS P. Predicting tunnel squeezing problems in weak heterogeneous rock masses-part 1：Estimating rock mass strength[J]. Tunnels and Tunnelling International，2000，(11)：45-51.
[20]	王成虎，沙鹏，胡元芳，等. 隧道围岩挤压变形问题探究[J]. 岩土力学，2011，32(增2)：143-147.(WANG Chenghu，SHA Peng，HU Yuanfang，et al. Study of squeezing deformation problems during tunneling[J]. Rock and Soil Mechanics，2011，32(Supp.2)：143-147.(in Chinese))
[21]	刘志春，朱永全，李文江，等. 挤压性围岩隧道大变形机理及分级标准研究[J]. 岩土工程学报，2008，30(5)：690-697.(LIU Zhichun，ZHU Yongquan，LI Wenjiang，et al. Mechanism and classification criterion for large deformation of squeezing ground tunnels[J]. Chinese Journal of Geotechnical Engineering，2008，30(5)：690-697.(in Chinese))
[22]	李国良，刘志春，朱永全. 兰渝铁路高地应力软岩隧道挤压大变形规律及分级标准研究[J]. 现代隧道技术，2015，52(1)：62-68.(LI Guoliang，LIU Zhichun，ZHU Yongquan，et al. On the large squeezing deformation law and classification criteria for the Lanzhou—Chongqing railway tunnels in soft and high geostress rocks[J]. Modern Tunnelling Technology，2015，52(1)：62-68.(in Chinese))
[23]	钮新强，万蕙，刘琪. 引江补汉工程关键技术挑战[J]. 中国水利，2022，(18)：15-17.(NIU Xinqiang，WAN Hui，LIU Qi. Key technical challenges of the water diversion project from Three Gorges reservoir to Hanjiang river[J]. China Water Resources，2022，(18)：15-17.(in Chinese))
[24]	王吉亮，向家菠，颜慧明，等. 引江补汉工程输水线路工程地质选线研究[J]. 长江科学院院报，2023，40(5)：100-105.(WANG Jiliang，XIANG Jiapi，YAN Huiming，et al. Route selection for water diversion project from Three Gorges reservoir to Hanjiang River based on engineering geology[J]. Journal of Changjiang River Scientific Research Institute，2023，40(5)：100-105.(in Chinese))
[25]	中华人民共和国国家标准编写组. GB 50487—2008水利水电工程地质勘察规范[S]. 北京：中国计划出版社，2008.(The National Standards Compilation Group of People?s Republic of China. GB 50487—2008 Code for engineering geological investigation of water resources and hydropower[S]. Beijing：China Planning Press，2008.(in Chinese))
[26]	朱永生，李鹏飞. Hoek-Brown强度准则研究进展及岩体力学参数取值[J]. 现代隧道技术，2020，57(1)：8-17.(ZHU Yongsheng，LI Pengfei. Research progress of Hoek-Brown strength criterion and determination of mechanical parameters of rock mass[J]. Modern Tunnelling Technology，2020，57(1)：8-17.(in Chinese))
[27]	HOEK E，BROWN E T. Practical estimates of rock mass strength[J]. International Journal of Rock Mechanics and Mining Sciences，1997，34(8)：1 165-1 186.
[28]	HOEK E，BROWN E T. The Hoek-Brown failure criterion and GSI-2018 edition[J]. Journal of Rock Mechanics and Geotechnical Engineering，2018，11(3)：445-463.
[29]	徐干成，郑颖人，乔春生，等. 地下工程支护结构与设计[M]. 北京：中国水利水电出版社，2013：79-81.(XU Gancheng，ZHENG Yingren，QIAO Chunsheng，et al. Underground engineering support structure[M]. Beijing：China Water Power Press，2013：79-81.(in Chinese))
[30]	中华人民共和国行业标准编写组. Q/CR 9512—2019铁路挤压性围岩隧道技术规范[S]. 北京：中国铁道出版社有限公司，2019.(The Professional Standards Compilation Group of People?s Republic of China. Q/CR 9512—2019 Code for tunnelling in squeezing rocks[S]. Beijing：China Railway Publishing House Co.，Ltd，2019.(in Chinese))