岩土力学 ›› 2025, Vol. 46 ›› Issue (6): 1765-1776.doi: 10.16285/j.rsm.2024.1104CSTR: 32223.14.j.rsm.2024.1104

• 基础理论与实验研究 • 上一篇    下一篇

结构面影响深埋隧道硬质围岩岩爆特征试验研究

韩世迎1, 2，王航龙1，彭俊2，朱君星2，王林飞2，潘堃2   

  1. 1. 昆明理工大学 国土资源工程学院，云南 昆明 650093； 2. 中钢集团马鞍山矿山研究总院股份有限公司 金属矿山安全与健康国家重点实验室，安徽 马鞍山 243000
  • 收稿日期:2024-09-06 接受日期:2024-12-18 出版日期:2025-06-11 发布日期:2025-06-09
  • 通讯作者: 王航龙，男，1983年生，硕士，高级工程师，主要从事露天矿开采设计、边坡稳定、边坡灾害防治等方面的研究。E-mail: 93544060@qq.com
  • 作者简介:韩世迎，男，1999年生，硕士研究生，主要从事岩爆方面的研究工作。E-mail: 1773948023@qq.com
  • 基金资助:
    国家重点研发计划（No.2023YFC2907201）；国家重点研发计划青年科学家项目（No.2022YFC2905700）；国家自然科学基金重点项目（No.52130403）；安徽省自然科学基金（No.2208085ME120）；安徽省重点研发计划（No.2022m07020001）。

Experimental investigation on influence of structural plane on rockburst characteristics of hard surrounding rock in a deep-buried tunnel

HAN Shi-ying1, 2, WANG Hang-long1, PENG Jun2, ZHU Jun-xing2, WANG Lin-fei2, PAN Kun2   

  1. 1. Faculty of Land and Resources Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China; 2. State Key Laboratory of Safety and Health for Metal Mines, Sinosteel Maanshan General Institute of Mining Research Co., Ltd., Maanshan, Anhui 243000, China
  • Received:2024-09-06 Accepted:2024-12-18 Online:2025-06-11 Published:2025-06-09
  • Supported by:
    This work was supported by the National Key Research and Development Program of China (2023YFC2907201), the National Key Research and Development Program for Young Scientists of China (2022YFC2905700), the Key Project of National Natural Science Foundation of China (52130403), the Natural Science Foundation of Anhui Province (2208085ME120) and the Key Research and Development Plan of Anhui Province (2022m07020001).

PDF (Chinese)

124

摘要： 为了研究结构面对深埋隧道硬质围岩岩爆特征的影响，对有无结构面的两种圆形隧道立方体砂岩试样进行了真三轴条件下岩爆模型试验，试验中采用声发射系统监测了岩爆演化过程。研究发现：结构面对岩爆发生的位置、洞壁破坏模式、岩爆剧烈程度具有较大的影响。无结构面试样两侧破坏位置对称，围岩边壁有较多岩片剥落，形成较浅的V型凹槽；有结构面试样洞壁两侧破坏位置不对称，远离结构面一侧有大量岩片剥落，形成较深的V型凹槽，结构面附近则产生多条裂纹，导致隧道与结构面之间岩体有向隧道空间垮塌的趋势；有结构面试样声发射事件活跃度更高，单个撞击的平均能量约为无结构面试样的2.2倍；根据累计撞击数的演化规律，将岩爆分为3个阶段，阶段Ⅰ为微裂纹闭合及线弹性阶段，阶段II为裂纹萌生及稳定扩展阶段，阶段III为微裂纹非稳定发育直至发生岩爆阶段。有结构面的试样进入阶段II的时间比不含结构面试样早；两种试样在破坏过程中产生的裂纹均为张拉剪切混合裂纹，其中有结构面试样的剪切裂纹占比更大。结构面的存在改变了试样初始损伤的位置，声发射定位与隧道破裂形态基本一致。

关键词: 结构型岩爆, 隧道, V型凹槽, 真三轴加载, 声发射

Abstract: This study examines the evolution of rockburst in hard surrounding rock of a deep-buried tunnel affected by structural planes. True triaxial rockburst model tests were conducted on cubic sandstone specimens with a circular tunnel, with and without structural surfaces. An acoustic emission system was used in the experiment to monitor the evolution process of rockburst. Results show that the structural planes significantly affect the position and intensity of rockburst, as well as the failure mode of cavern wall. The damaged zone is symmetrical on both sides of specimens without a structural plane. Several rock flakes form a shallow V-shaped notch in the sidewall of the circular tunnel. The failure position on both sides of specimen with a structural plane is asymmetrical. On the side distant from the structural plane, a large number of rock flakes peel off, forming a deep V-shaped notch. Near the structural plane, multiple cracks form, causing the rock mass between the tunnel and the structural face to tend to collapse into the tunnel space. The acoustic emission (AE) events in specimen with structural plane are much more active, with the average energy of a single impact being approximately 2.2 times that of the specimen without a structural pane. According to the evolution of cumulative impact count, the loading process before rockburst can be divided into three stages, including crack closure and linear elastic deformation, crack initiation and stable propagation, and crack unstable development. The crack initiation and stable propagation is earlier in specimen with a structural plane than that in specimen without a structural plane. All cracks generated during the failure process are tension-shear mixed pattern in both tested specimens. The proportion of shear cracks is larger in specimen with a structural plane compared to that without. The presence of structural plane changes the position of initial damage in specimen. The AE location in the experiment generally correspond to the failure pattern of circular tunnel.

Key words: structure-type rockburst, circular tunnel, V-shaped notch, true triaxial loading, acoustic emission (AE)

中图分类号: TU454
[1] 黄曼, 宁昊晟, 洪陈杰, 陶志刚, 刘雨星, 张贺, . 基于第二代负泊松比锚杆加固的充填结构面剪切特性研究[J]. 岩土力学, 2025, 46(S1): 131-140.
[2] 张治国, 李乃义, 牛瑞, 王安源, 朱正国, . 考虑中导洞施工效应的双连拱隧道应力与位移复变函数解[J]. 岩土力学, 2025, 46(S1): 141-158.
[3] 张治国, 陈胤吉, 朱正国, 魏纲, 孙苗苗, . 软土小曲率盾构隧道开挖诱发黏弹性地层沉降的解析解[J]. 岩土力学, 2025, 46(S1): 309-321.
[4] 冉龙洲, 袁松, 王希宝, 张廷彪, 刘德军, 黎良仆, . 考虑围岩−盾体−注浆体−管片相互作用的深埋护盾式隧道掘进机法隧道围岩压力计算方法研究[J]. 岩土力学, 2025, 46(S1): 366-376.
[5] 张胜, 柏巍, 徐鼎平, 郑虹, 江权, 李志伟, 向天兵, . 循环荷载作用下砂岩损伤演化的声发射与电阻率监测及理论研究[J]. 岩土力学, 2025, 46(S1): 53-66.
[6] 刘一鸣, 李振, 冯国瑞, 杨鹏, 白锦文, 黄炳雄, 李东, . 循环加卸载下裂隙砂岩声−热响应特征及前兆规律[J]. 岩土力学, 2025, 46(9): 2773-2791.
[7] 黄大维, 卢文剑, 罗文俊, 余珏, . 盾构隧道同步注浆对砂土地层竖向位移与周围土压力影响试验研究[J]. 岩土力学, 2025, 46(9): 2837-2846.
[8] 宋利埼, 章敏, 徐筱, 孙静雯, 俞奎, 李昕尧, . 考虑管片接头转动效应的盾构隧道光纤反演分析[J]. 岩土力学, 2025, 46(8): 2483-2494.
[9] 宋牧原, 杨明辉, 陈伟, 卢贤锥, . 基于自注意力-循环神经网络模型的盾构引发的土体沉降预测[J]. 岩土力学, 2025, 46(8): 2613-2625.
[10] 宋伟涛, 张佩, 杜修力, 林庆涛, . 土性对浅埋盾构隧道施工地层响应影响研究[J]. 岩土力学, 2025, 46(7): 2179-2188.
[11] 雷瑞德, 顾清恒, 胡超, 贺培, 周林森, . 裂隙砂岩声发射信号特征及破裂前兆识别研究[J]. 岩土力学, 2025, 46(7): 2023-2038.
[12] 储超群, 包兴佳, 毛明发, 吴顺川, 崔贺佳, . 深地灰岩三轴压缩声发射特征及破坏形式试验研究[J]. 岩土力学, 2025, 46(7): 2049-2061.
[13] 吕萌, 王亮清, 谢妮, 朱林锋, 安彩龙, 柯睿, 王旭晨, . 加锚异性结构面剪切特性及声发射响应特征研究[J]. 岩土力学, 2025, 46(7): 2106-2120.
[14] 芮瑞, LIN A H, 杨俊超, 杨硕, . 被动活动门试验中的土拱效应演化规律[J]. 岩土力学, 2025, 46(6): 1657-1666.
[15] 马春德, 康子豪, 阳文源, 谭观霜, 赵俊康, . 不同加载速率下花岗岩多期应力记忆方向独立性试验研究[J]. 岩土力学, 2025, 46(6): 1709-1718.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
版权所有 © 《岩土力学》编辑部
地址：湖北武汉武昌小洪山中国科学院武汉岩土力学研究所(430071)　邮编：200042　电话：027-87198484　E-mail: ytlx@whrsm.ac.cn
本系统由北京玛格泰克科技发展有限公司设计开发