施建俊;苗晓鹏;陈慧;黄志强;张小军;
SHI Jian-jun;MIAO Xiao-peng;CHEN Hui;HUANG Zhi-qiang;ZHANG Xiao-jun;School of Civil and Resource Engineering, Science and Technology University Beijing;Beijing Key Laboratory of Urban Underground Space Engineering;

• 1:北京科技大学土木与资源工程学院
• 2:城市地下空间工程北京市重点实验室

摘要(Abstract)：

为更准确地预测岩体非线性破坏,可靠地获取岩体力学参数,以渝怀二线Ⅳ标漾头车站石方控制爆破工程为依托,结合爆破现场声波测试数据,基于因果聚类的模糊综合预测理论,对Hoek-Brown强度准则的爆破扰动参数进行研究。将Hoek-Brown岩石强度准则中的扰动因子与损伤力学中的损伤度建立关系;提出了对Hoek-Brown岩石强度准则中参数m_b和s的改进公式;建立了岩体爆破扰动状态与损伤度、岩体声速降低率的对应关系,可直接通过现场声波数据对岩体的爆破扰动进行分级。结果表明:通过对白云岩及砂质白云岩的岩体力学参数的估算,证明本文提出的修正公式较其他公式有较强的可靠性和准确性,同时可为爆破开挖岩体力学参数的估算及爆破作用下岩体劣化程度描述等提供参考和借鉴。
In order to more accurately predict the non-linear failure of rock mass so as to obtain the reliable rock mass mechanical parameters, based on the causal clustering fuzzy comprehensive prediction theory, the blasting disturbance parameters of the Hoek-Brown strength criterion are studied with the acoustic test data of the rock-controlled blasting project of Yangtou Station on Yuhuai Second Line IV. Firstly, the relationship between the disturbance factor in the Hoek-Brown rock strength criterion and the damage degree in the damage mechanics is established. Secondly, an improved formula for the sum of the parameters in the Hoek-Brown rock strength criterion is proposed. Thirdly, the corresponding relationships between the disturbance state and the damage degree, and the disturbance state and the sound velocity reduction rate of the rock mass are set up, realizing the classification of the rock mass blasting disturbance directly through the on-site acoustic wave data. The research results are obtained as follows: through the estimation of the rock mass mechanical parameters of dolomite and sandy dolomite, it is proved that the revised formula proposed in this paper is more reliable and accurate than other formulas, and it can provide reference for the estimation of the mechanical parameters of blasting excavation and the description of the blasting degradation degree of the rock mass.

关键词(KeyWords)： Hoek-Brown岩石强度准则;模糊综合预测;损伤度;声速降低率;岩体力学参数
Hoek-Brown rock strength criterion;fuzzy comprehensive prediction;damage variables;sound velocity reduction rate;rock mechanics parameters

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学资金资助项目(51208036);; 中央高校基本科研业务费专项基金资助项目(FRF-TP-15-041A3)

作者(Authors): 施建俊;苗晓鹏;陈慧;黄志强;张小军;
SHI Jian-jun;MIAO Xiao-peng;CHEN Hui;HUANG Zhi-qiang;ZHANG Xiao-jun;School of Civil and Resource Engineering, Science and Technology University Beijing;Beijing Key Laboratory of Urban Underground Space Engineering;

DOI: 10.19931/j.EB.20200026

参考文献(References)：

• [1] 任晋岚，陈曦，王冬勇，等.基于广义Hoek-Brown准则的瞬时线性化强度折减技术[J].岩土力学，2019,40(12):1-8.REN J L,CHEN X,WANG D Y,et al.Instantaneous linearization strength reduction technique for generalized Hoek-Brown criterion [J].Rock and Soil Mechanics,2019,40(12):1-8.
• [2] 邢军，郭镇邦，李钰洁，等.基于模糊聚类和Hoek-Brown准则的裂隙岩体力学参数计算[J].中国矿业，2019,28(5):140-145.XING J,GUO Z B,LI Y J,et al.Calculation of mechanical parameters of fractured rock mass based on fuzzy clustering and Hoek-Brown criterion[J].China Mining,2019,28(5):140-145.
• [3] 金俊超，佘成学，尚朋阳，等.基于Hoek-Brown准则的岩石应变软化模型研究[J].岩土力学，2020,41(3):1-13.JIN J C,YAN C X,SHANG P Y,et al.Study on rock strain softening model based on Hoek-Brown criterion[J].Rock and Soil Mechanics,2020,41(3):1-13.
• [4] 张建海，何江达，范景伟.小湾工程岩体力学参数研究[J].云南水利发电，2000,16(2):26-27.ZHANG J H,HE J D,FAN J W.Study on mechanical parameters of rock mass in Xiaowan project[J].Yunnan Water Resources & Hydropower,2000,16(2):26-27.
• [5] 闫长斌，徐国元.对Hoek-Brown公式的改进及其工程应用[J].岩石力学与工程学报，2005,25(22):4 030-4 035.YAN C B,XU G Y.Improvement of Hoek-Brown formula and its engineering application[J].Chinese Journal of Rock Mechanics and Engineering,2005,25(22):4 030-4 035.
• [6] 高悦，段连强，刘风华，等.广义Hoek-Brown岩体强度准则的m,s参数改进研究[J].化工矿物与加工，2018,47(11):29-33.GAO Y,DUAN L Q,LIU F H,et al.Improvement of m,s parameters of generalized Hoek-Brown rock mass strength criterion[J].Industrial Minerals & Processing,2018,47(11):29-33.
• [7] 巫德斌，徐卫亚.基于Hoek-Brown准则的边坡开挖岩体力学参数研究[J].河海大学学报(自然科学版),2005(1):89-93.WU D B,XU W Y.Hoek-Brown criterion-based study on mechanical parameters of excavated slope rock masses[J].Journal of Hohai University(Natural sciences),2005(1):89-93.
• [8] 吴顺川，姜日华，张诗淮，等.修正Hoek-Brown强度准则在钻孔稳定性分析中的应用[J].岩土力学，2018,39(S2):1-13.WU S C,JIANG R H,ZHANG S H,et al.Application of modified Hoek-Brown strength criterion in borehole stability analysis[J].Rock and Soil Mechanics,2018,39(S2):1-13.
• [9] 曹扬悦也，蒋志刚，谭清华，等.基于Hoek-Brown准则的混凝土-岩石类靶侵彻模型[J].振动与冲击，2017,36(5):48-53,60.CAO Y Y Y,JIANG Z G,TAN Q H,et al.A concrete-rock target penetration model based on Hoek-Brown criterion[J].Journal of Vibration and Shock,2017,36(5):48-53,60.
• [10] 张玉军，张思渊.对层状岩体使用修正的Hoek-Brown破坏准则的有限元分析[J].岩石力学与工程学报，2017,36(S1):3 307-3 313.ZHANG Y J,ZHANG S Y.Finite element analysis of modified Hoek-Brown failure criterion for layered rock masses[J].Chinese Journal of Rock Mechanics and Engineering,2017,36(S1):3 307-3 313.
• [11] HOEK E.Pracice rock engineering[M].Rottrdam:A.A.Balkema,2000:20-21.
• [12] SONMEZ H,ULUSAY R.Modifications to the geological strength index (GSI) and their applicability to stability of slopes[J].International Journal of Rock Mechanics and Mining Sciences,1999,36(5):743-760.
• [13] HOEK E,DIEDERIOCHS M S.Empirical estimation of mass modulus[J].International Journal of Rock Mechanics and Mining Sciences,2006,43(2):203-215.
• [14] 中华人民共和国国家发展和改革委员会.水工建筑物岩石基础开挖工程施工技术规范：DL/T 5389-2007[S].北京：中国标准出版社，2007.National Development and Reform Commission,People's Republic of China.Construction technical specifications on rock-foundation excavating engineering of hydraulic structures:DL/T 5389-2007[S].Beijing:China Standards Press,2015.
• [15] 张春生，朱永生，褚卫江.白鹤滩水电站隐晶质玄武岩力学特性及Hoek-Brown本构模型描述[J].岩石力学与工程学报，2019,38(10):1 964-1 978.ZHANG C S,ZHU Y S ,CHU W J.Mechanical characteristics of cryptocrystalline basalt and description of Hoek-Brown constitutive model of Baihetan Hydropower Station[J].Chinese Journal of Rock Mechanics and Engineering,2019,38(10):1 964-1 978.
• [16] TORRES C C.Elasto-plastic solution of tunnel problems using the generalized form of the hoek-brown failure criterion[J].International Journal of Rock Mechanics and Mining Sciences,2004,41(3):480-481.
• [17] 杨泽.云南某露天矿东采区边坡岩体力学参数取值研究[D].昆明：昆明理工大学，2010.YANG Z.Study on the value of mechanical parameters of rock mass in the eastern mining area of an open-pit mine in Yunnan [D].Kunming:Kunming University of Science and Technology,2010.
• [18] 冯文凯，王琦，张光鑫，等.Hoek-Brown准则的改进及在大光包滑坡滑带碎裂岩体力学强度评价中的应用[J].岩石力学与工程学报，2017,36(S1):3 448-3 455.FENG W K,WANG Q,ZHANG G X,et al.Improvement of Hoek-Brown criterion and its application to evaluation of mechanical strength of fractured rock mass in Daguangbao landslide[J].Chinese Journal of Rock Mechanics and Engineering,2017,36 (S1):3 448-3 455.文章编号：1006-7051(2021)02-0029-06