[1]胡涛涛,张哲昊,王 栋.常规压缩下炭质板岩各向异性力学特征[J].长安大学学报(自然科学版),2024,44(6):92-102.[doi:10.19721/j.cnki.1671-8879.2024.06.009]
　HU Tao-tao,ZHANG Zhe-hao,WANG Dong.Anisotropic mechanical characteristics of carbonaceous slate under conventional compression[J].Journal of Chang’an University (Natural Science Edition),2024,44(6):92-102.[doi:10.19721/j.cnki.1671-8879.2024.06.009]
点击复制

常规压缩下炭质板岩各向异性力学特征()
分享到：

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6期
页码:
92-102
栏目:
桥梁与隧道工程
出版日期:
2024-12-30

文章信息/Info

Title:
Anisotropic mechanical characteristics of carbonaceous slate under conventional compression
文章编号:
1671-8879(2024)06-0092-11
作者:
胡涛涛1; 张哲昊1; 王 栋2
(1. 长安大学 公路学院,陕西 西安 710064; 2. 山东华宇工学院 能源与建筑工程学院,山东 德州 253034)
Author(s):
HU Tao-tao1;  ZHANG Zhe-hao1;  WANG Dong2
(1. School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China; 2. School ofEnergy and Architectural Engineering, Shandong Huayu Institute of Technology, Dezhou 253034, Shandong, China)
关键词:
隧道工程;  炭质板岩;  单三轴试验;  各向异性;  层理倾角;  数值模拟
Keywords:
tunnel engineering;  carbonaceous slate;  uniaxial and triaxial test;  anisotropy;  bedding inclination angle;  numerical simulation
分类号:
U411
DOI:
10.19721/j.cnki.1671-8879.2024.06.009
文献标志码:
A
摘要:
为探究层理倾角对炭质板岩力学特性的影响,开展不同层理倾角炭质板岩单轴和三轴压缩试验,研究层理倾角对炭质板岩强度、变形参数以及破坏形态的影响规律,并采用ABAQUS有限元软件建立内聚力模型进行数值模拟分析。研究结果表明:压缩过程中,不同层理倾角炭质板岩的应力随应变的演化过程呈压密、似弹性变形、破坏跌落3个阶段; 三轴压缩下炭质板岩的应力-应变曲线几乎没有表现出压密阶段的特征,且随着围压增大,逐渐呈延性破坏特征; 单轴压缩状态下,层理倾角为0°时炭质板岩表现出穿过层理面的剪切破坏,层理倾角为30°、45°时表现出沿层理面产生破坏面的弱面剪切破坏,层理倾角为90°时呈张拉-剪切破坏,不同层理倾角炭质板岩的破坏形态受层理倾角控制较强,受围压控制较弱; 不同层理倾角炭质板岩的强度和变形参数均表现出各向异性特征,但各向异性程度不同,不同围压下炭质板岩峰值强度的各向异性比均在1.5以上,而弹性模量的各向异性比均在1.2～1.35; 通过强度与围压的关系计算得出了炭质板岩的抗剪强度指标,其中黏聚力表现出明显各向异性。研究成果可为深埋炭质板岩隧道围岩失稳防控提供理论基础。
Abstract:
To investigate the influence of bedding angle on the mechanical properties of carbonaceous slate, uniaxial and triaxial compression tests were conducted on carbonaceous slate samples with varying bedding angles. The objective was to study the effects of bedding angle on the strength, deformation parameters, and failure modes of the carbonaceous slate. Additionally, a cohesive zone model was established using ABAQUS finite element software for numerical simulation analysis. The research findings indicate that during compression, the stress-strain evolution of carbonaceous slate with different bedding angles exhibits three stages: compaction, quasi-elastic deformation, and failure with stress drop. Under triaxial compression, the stress-strain curves of carbonaceous slate rarely display compaction characteristics, and as confining pressure increases, the failure mode gradually transitions to ductile failure. In uniaxial compression, when the bedding angle is 0°, the carbonaceous slate exhibits shear failure across the bedding plane. At bedding angles of 30° and 45°, it shows weak plane shear failure along the bedding plane. When the bedding angle is 90°, tensile-shear failure occurs. The failure modes of carbonaceous slate with different bedding angles are strongly controlled by the bedding angle and less influenced by confining pressure. The strength and deformation parameters of carbonaceous slate with various bedding angles exhibit anisotropic characteristics, albeit to different degrees. The anisotropy ratios of peak strength for carbonaceous slate under different confining pressures are all above 1.5, while the anisotropy ratios of elastic modulus range from 1.2 to 1.35. The shear strength parameters of carbonaceous slate, derived from the relationship between strength and confining pressure, reveal significant anisotropy in cohesion. The research findings provide a theoretical foundation for the prevention and control of instability in surrounding rock of deeply buried carbonaceous slate tunnels.6 tabs, 14 figs, 21 refs.

参考文献/References:

[1] 张亚君.岩体横观各向同性特征及其对隧道围岩稳定性影响研究[D].石家庄:石家庄铁道大学,2022.
ZHANG Ya-jun.Study on transverse isotropic characteristics of rock mass and its influence on stability of surrounding rock of tunnel[D].Shijiazhuang:Shijia-zhuang Tiedao University,2022.
[2]赵 勐,肖 明,陈俊涛,等.考虑互层状岩体接触状态的地下洞室围岩稳定分析[J].东北大学学报(自然科学版),2022,43(2):243-250.
ZHAO Meng,XIAO Ming,CHEN Jun-tao,et al.Stability analysis of surrounding rock of underground caverns considering contact state of interbedded layered rock mass[J].Journal of Northeastern University(Natural Science),2022,43(2):243-250.
[3]CHO J W,KIM H,JEON S,et al.Deformation and strength anisotropy of Asan gneiss,Boryeong shale,and Yeoncheon schist[J].International Journal of Rock Mechanics and Mining Sciences,2012,50:158-169.
[4]WANG M M,LI P,WU X W,et al.A study on the brittleness and progressive failure process of anisotropic shale[J].Environmental Earth Sciences,2016,75(10):886.
[5]ZHENG Z Q,XIAO M L,ZHUO L,et al.Transversely isotropic mechanical properties of water-bearing shale:An experimental investigation[J].IOP Conference Series:Earth and Environmental Science,2021,861(2):022008.
[6]周 喻,李 程,王文林,等.单轴压缩条件下含层理煤岩力学特性的细观研究[J].中南大学学报(自然科学版),2022,53(10):4036-4047.
ZHOU Yu,LI Cheng,WANG Wen-lin,et al.A meso-level study on mechanical properties of bedding coal under uniaxial compression[J].Journal of Central South University(Science and Technology),2022,53(10):4036-4047.
[7]宋 斌.巷道层状围岩各向异性工程力学特性研究[J].煤矿安全,2020,51(8):58-62.
SONG Bin.Study on engineering mechanical properties of anisotropy of layered surrounding rock of roadway[J].Safety in Coal Mines,2020,51(8):58-62.
[8]胡涛涛,康志斌,陈建勋,等.含软弱夹层炭质板岩单轴压缩力学行为模拟研究[J].应用力学学报,2021,38(4):1580-1587.
HU Tao-tao,KANG Zhi-bin,CHEN Jian-xun,et al.Simulation study on mechanical behavior of carbonaceous slate with weak interlayer under uniaxial compression[J].Chinese Journal of Applied Mechanics,2021,38(4):1580-1587.
[9]卢海峰,魏爱超,邹星辰.层状板裂组合结构岩体力学特性试验研究[J].岩石力学与工程学报,2022,41(增2):3282-3293.
LU Hai-feng,WEI Ai-chao,ZOU Xing-chen.Experimental study on rock mass mechanical characteristics of layered slab-fracture composite structure[J].Chinese Journal of Rock Mechanics and Engineering,2022,41(S2):3282-3293.
[10]宋战平,程 昀,杨腾添,等.循环荷载下硬质层理砂岩疲劳损伤机制试验研究[J].岩土工程学报,2024,46(3):490-499.
SONG Zhan-ping,CHENG Yun,YANG Teng-tian,et al.Experimental study on fatigue damage evolution mechanism of hard layered sandstone under cyclic loading[J].Chinese Journal of Geotechnical Engineering,2024,46(3):490-499.
[11]宋战平,刘洪珂,郑 方,等.考虑层理倾角的硬质砂岩力学行为及破裂响应特征[J].煤田地质与勘探,2023,51(12):167-175.
SONG Zhan-ping,LIU Hong-ke,ZHENG Fang,et al.Mechanical behavior and failure response characteristics of hard sandstones considering bedding dip angles[J].Coal Geology & Exploration,2023,51(12):167-175.
[12]王旭一,黄书岭,丁秀丽,等.层状岩体单轴压缩力学特性的非均质层面影响效应研究[J].岩土力学,2021,42(2):581-592.
WANG Xu-yi,HUANG Shu-ling,DING Xiu-li,et al.Study on the influence effect of heterogeneous layer on uniaxial compression mechanical properties of layered rock mass[J].Rock and Soil Mechanics,2021,42(2):581-592.
[13]ZHU Y G,CHEN H Y,LI A Q,et al.Effect of loading conditions on the shear behaviors of rock-like materials containing circular holes,with the CZM method[J].Applied Sciences,2022,12(9):4708.
[14]ZHANG S B,WANG G,JIANG Y J,et al.Study on shear mechanism of bolted jointed rocks:Experiments and CZM-based FEM simulations[J].Applied Sciences,2019,10(1):62.
[15]李二强,张洪昌,张龙飞,等.不同层理倾角炭质板岩巴西劈裂试及数值研究[J].岩土力学,2020,41(9):2869-2879.
LI Er-qiang,ZHANG Hong-chang,ZHANG Long-fei,et al.Investigation on Brazilian tests and simulations of carbonaceous slate with different bedding angles[J].Rock and Soil Mechanics,2020,41(9):2869-2879.
[16]谢 浩,陈思斌,黄永亮,等.基于内聚力模型的网格尺寸及参数敏感性研究[J].山东大学学报(工学版),2021,51(6):111-118,128.
XIE Hao,CHEN Si-bin,HUANG Yong-liang,et al.Mesh size and parameter sensitivity based on cohesive zone model[J].Journal of Shandong University(Engineering Science),2021,51(6):111-118,128.
[17]SAKTHIVEL S N,KATHURIA A,SINGH B.Utilization of inferior quality aggregates in asphalt mixes:A systematic review[J].Journal of Traffic and Transportation Engineering(English Edition),2022,9(5):864-879.
[18]LUO Y,SHI Z,WANG C,et al.Mechanical properties of rock bolt and analysis for the full-process of sliding failure based on rock mass absolute displacement[J].Journal of Traffic and Transportation Engineering(English Edition),2022,9(3):490-506.
[19]石天翔,张 昕,王洋洋,等.基于强度理论的内聚力模型的有限元实现及应用[J].浙江大学学报(工学版),2023,57(3):573-582.
SHI Tian-xiang,ZHANG Xin,WANG Yang-yang,et al.Finite element implementation and application of strength theory based cohesive zone model[J].Journal of Zhejiang University(Engineering Science),2023,57(3):573-582.
[20]富志鹏,李博融,徐 晨,等.高地应力软岩隧道大变形控制方案现场试验[J].长安大学学报(自然科学版),2023,43(1):133-142.
FU Zhi-peng,LI Bo-rong,XU Chen,et al.Field experiment on large deformation control scheme of high stress soft rock tunnel[J].Journal of Chang'an University(Natural Science Edition),2023,43(1):133-142.
[21]钟 扬,高 超,张海太.长时间停工条件下炭质板岩地层隧道围岩变形及支护结构补强研究[J].中外公路,2021,41(4):256-260.
ZHONG Yang,GAO Chao,ZHANG Hai-tai.Study on deformation of surrounding rock and reinforcement of supporting structure for carbonaceous slate stratum tunnels during long-term cessation[J].Journal of China & Foreign Highway,2021,41(4):256-260.

相似文献/References:

[1]罗 刚,石研玉,申 奇,等.水中悬浮隧道锚索横向动力特性分析[J].长安大学学报(自然科学版),2012,32(03):73.
　LUO Gang,SHI Yan-yu,SHENG Qi,et al.Lateral dynamic characteristics analysis for cable of submerged floating tunnel in water[J].Journal of Chang’an University (Natural Science Edition),2012,32(6):73.
[2]易富君,韩 直,邓 卫.公路隧道群运营安全性综合评价方法[J].长安大学学报(自然科学版),2012,32(03):79.
　YI Fu-jun,HAN Zhi,DENG Wei.Comprehensive safety evaluation method of expressway tunnel group[J].Journal of Chang’an University (Natural Science Edition),2012,32(6):79.
[3]王 磊,郭洋洋.特长公路隧道运营网络通风技术[J].长安大学学报(自然科学版),2012,32(04):51.
　WANG Lei,GUO Yang-yang.Network ventilation technology of operation period in super long highway tunnel[J].Journal of Chang’an University (Natural Science Edition),2012,32(6):51.
[4]韩日美,宋战平,谢永利,等.土压平衡盾构土仓压力对地表沉降的影响[J].长安大学学报(自然科学版),2010,30(01):59.
　HAN Ri-mei,SONG Zhan-ping,XIE Yong-li,et al.Affection of soil warehouses pressure of EPB shield on ground settlement[J].Journal of Chang’an University (Natural Science Edition),2010,30(6):59.
[5]朱正国,陈明长,孙明磊.双连拱公路隧道围岩压力计算方法[J].长安大学学报(自然科学版),2010,30(02):75.
　ZHU Zheng-guo,CHEN Ming-zhang,SUN Ming-lei.Calculation method of pressure of surrounding rock on double-arch road tunnel[J].Journal of Chang’an University (Natural Science Edition),2010,30(6):75.
[6]刘 辉,李 波,吴从师,等.岩溶隧道掘进爆破震动效应分析[J].长安大学学报(自然科学版),2010,30(04):56.
　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(6):56.
[7]朱春生,杨晓华,来弘鹏,等.公路隧道衬砌后空洞对结构安全的影响[J].长安大学学报(自然科学版),2010,30(05):63.
　ZHU Chun-sheng,YANG Xiao-hua,LAI Hong-peng,et al.Impact of empty hole behind expressway tunnel lining on structure safety[J].Journal of Chang’an University (Natural Science Edition),2010,30(6):63.
[8]来弘鹏,谢永利,杨晓华.不同应力场软弱围岩公路连拱隧道中墙受力特征[J].长安大学学报(自然科学版),2010,30(06):50.
　LAI Hong-peng,XIE Yong-li,YANG Xiao-hua.Stress characteristics of middle wall in soft-wreak surrounding rocks highway multiple-arch tunnel under different stress field[J].Journal of Chang’an University (Natural Science Edition),2010,30(6):50.
[9]来弘鹏,谢永利,杨晓华,等.不同应力场软弱围岩公路连拱隧道力学特征试验[J].长安大学学报(自然科学版),2008,28(06):60.
　LAI Hong-peng,XIE Yong-li,YANG Xiao-hua.Model tests for soft-weak surrounding rocks highway multiple-arch tunnel stress characteristics in different stress fields[J].Journal of Chang’an University (Natural Science Edition),2008,28(6):60.
[10]郭建新,高永涛.基于围岩破坏区和承载力的锚杆支护设计[J].长安大学学报(自然科学版),2008,28(06):65.
　GUO Jian-xin,GAO Yong-tao.Design of anchor bolt support based on analysis of surround rock damage area and bear force[J].Journal of Chang’an University (Natural Science Edition),2008,28(6):65.

备注/Memo

备注/Memo:
收稿日期:2024-05-13
基金项目:国家自然科学基金项目(52378388)
作者简介:胡涛涛(1985-),男,陕西凤翔人,副教授,工学博士,E-mail:tthu@chd.edu.cn。
更新日期/Last Update: 2024-12-30