爆炸作用下隧道拱肩I/II复合型裂纹起裂及扩展规律研究

doi:10.13722/j.cnki.jrme.2021.0372

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (3552 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要为了分析隧道拱肩I/II复合型裂纹在爆炸荷载下的起裂及扩展规律，采用带有拱肩裂纹的岩石隧道模型(rock tunnel modelwith a spandrelcrack，RTMSC)进行了爆炸试验。试验中采用裂纹扩展计(crack propagation gauge，CPG)及应变片测试裂纹的起裂、扩展及止裂规律。数值模拟采用AUTODYN软件。裂纹尖端的动态应力强度因子和(SIFs)的计算采用ABAQUS软件。结果表明：(1) 裂纹在扩展过程中，在扩展路径上出现了拐点，同时在拐点处存在较为明显的“止裂”现象。(2) 炮孔位置显著影响裂纹的起裂、止裂和扩展。(3) 裂纹扩展过程中，动态能量释放率不是一个常数。(4) 随着裂纹扩展速度的增加，I型和II型临界SIFs逐渐减小。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	刘邦1
	2
	朱哲明3
	刘瑞峰4
	李盟5
	王相立1
	2
	万端莹3

关键词 ：隧道工程, I/II复合型裂纹, 爆炸载荷, 起裂和止裂, 扩展速度, 隧道拱肩, 动态应力强度因子

Abstract：In this paper，a rock tunnel model with a spandrel crack(RTMSC) was proposed，and the initiation and propagation rule of mixed mode I/II cracks under blast loading were studied. Crack propagation gauge and strain gauge were used in the experiment to monitor crack initiation，propagation and arrest. AUTODYN code was used for numerical simulation，and ABAQUS code was used to calculate the dynamic stress intensity factors and(SIFs). The results show that：(1) in the process of crack propagation，there are crack arrest points on the propagation paths in which crack propagation time is relatively long，(2) bore locations affect crack initiation，arrest and propagation significantly，(3) in the process of crack propagation，the dynamic energy release rate is not a constant，and (4) with increasing the crack propagation speed，critical SIFs of both mode I and mode II decrease gradually.

Key words： tunnelling engineering mixed mode I/II crack blast loading initiation and arrest propagation speed tunnel spandrel dynamic stress intensity factor

引用本文:

刘邦1，2，朱哲明3，刘瑞峰4，李盟5，王相立1，2，万端莹3. 爆炸作用下隧道拱肩I/II复合型裂纹起裂及扩展规律研究[J]. 岩石力学与工程学报, 2021, 40(10): 2048-2061.
LIU Bang1，2，ZHU Zheming3，LIU Ruifeng4，LI Meng5，WANG Xiangli1，2，WANDuanying3. Study on initiation and propagation law of mixed mode I/II cracks in tunnel spandrel under explosion. , 2021, 40(10): 2048-2061.

链接本文:

http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2021.0372 或 http://rockmech.whrsm.ac.cn/CN/Y2021/V40/I10/2048

[3]	MASI F，STEFANOU I，VANNUCCI P. A study on the effects of an explosion in the Pantheon of Rome[J]. Engineering Structures，2018，164：259-273.
[8]	SLAVKO T，VELJKO L. Blast-induced damage and its impact on structural stability of underground excavations[J]. Podzemniradovi，2016，2016(29)：33-42.
[14]	WEI J，ZHAO J H. A two-strain-gage technique for determining mode I stress-intensity factor[J]. Theoretical and Applied Fracture Mechanics，1997，28(2)：135-140.
[17]	郭东明，刘康，杨仁树，等. 爆炸荷载对邻近巷道背爆侧裂纹的影响规律[J]. 煤炭学报，2014，39(12)：2 355-2 361.(GUO Dongming，LIU Kang，YANG Renshu，et al. Effects of blast load on crack in back-blast side of adjacent tunnel[J]. Journal of China Coal Society，2014，39(12)：2 355-2 361.(in Chinese))
[1]	BERGEER J R，DALLY J W. An over deterministic approach for measuring KI using strain gages[J]. Experimental Mechanics，1988，28(2)：142-145.
[5]	YAN Q，XUY，ZHANG W，et al. Numerical analysis of the cracking and failure behaviors of segmental lining structure of an underwater shield tunnel subjected to a derailed high-speed train impact[J]. Tunnelling and Underground Space Technology，2018，72(2)：41-54.
[7]	SHIRZADEGAN S，NORDLUND E，ZHANG P. Large scale dynamic testing of rock support system at Kiirunavaara underground mine[J]. Rock Mechanics and Rock Engineering，2016，49：2 773-2 794.
[10]	YANG L，YANG R，QU G，et al. Caustic study on blast-induced wing crack behaviors in dynamic-static superimposed stress ?eld[J]. International Journal of Mining Science and Technology，2014，24(4)：417-423.
[12]	冯春，李世海，周东，等. 爆炸载荷作用下岩石损伤破裂过程的数值模拟[J]. 岩土工程学报，2014，36(7)：1 262-1 270.(FENG Chun，LI Shihai，ZHOU Dong，et al. Numerical analysis of damage and crack process of rock under explosive loading[J]. Chinese Journal of Geotechnical Engineering，2014，36(7)：1 262-1 270.(in Chinese))
[6]	KEYS R A，CLUBLEY S K. Experimental analysis of debris distribution of masonry panels subjected to long duration blast loading[J]. Engineering Structures，2017，130：229-241.
[15]	ZHU Z M，XU W T，FENG R Q. A new method for measuring mode-I dynamic fracture toughness of rock under blasting loads[J]. Experimental Techniques，2016，40(3)：899-905.
[2]	VERMA H K，SAMADHIYA N K，SINGH M，et al. Blast induced rock mass damage around tunnels[J]. Tunnelling and Underground Space Technology，2018，71(1)：149-158.
[11]	LIU C，THOMPSON D G. Crack initiation and growth in PBX 9502 high explosive subject to compression[J]. Journal of Applied Mechanics，2014，81(10)：101 004.
[20]	RONG H U，ZHU Z M，XIE J，et al. Numerical study on crack propagation by using softening model under blasting[J]. Advances in Materials Science and Engineering，2015，2015：1-9.
[4]	OZCELIKM. Back analysis of ground vibrations which cause cracks in buildings in residential areas Karakuyu(Dinar，Afyonkarahisar，Turkey)[J]. Natural Hazards，2018，92：497-509.
[13]	胡建华，雷涛，周科平，等. 充填环境下预裂缝的爆破动力响应分析[J]. 中南大学学报：自然科学版，2011，42(6)：1 704-1 709. (HU Jianhua，LEI Tao，ZHOU Keping，et al. Effect of blasting vibration on pre-splitting crack in filling-environment[J]. Journal of Central South University：Science and Technology，2011，42(6)： 1 704-1 709.(in Chinese))
[19]	杨仁树，苏洪，龚悦，等. 爆炸荷载下不对称Y型裂纹扩展规律的试验研究[J]. 岩土力学，2017，38(8)：2 175-2 181.(YANG Renshu，SU Hong，GONG Yue，et al. Study on the regularity of asymmetric Y-shaped cracks propagation under blast loading[J]. Rock and Soil Mechanics，2017，38(8)：2 175-2 181.(in Chinese))
[21]	KONOKMAN H E，ÇORUH M M，KAYRAN A. Computational and experimental study of high-speed impact of metallic Taylor cylinders[J]. Acta Mechanica，2011，220(1)：61-85.
[22]	WU C，HONG H. Numerical prediction of rock mass damage due to accidental explosions in an underground ammunition storage chamber[J]. Shock Waves，2006，15(1)：43-54.
[31]	王蒙，朱哲明，谢军. 岩石I-II复合型裂纹动态扩展SHPB实验及数值模拟研究[J]. 岩石力学与工程学报，2015，34(12)：2 474-2 485.(WANG Meng，ZHU Zheming，XIE Jun. Experimental and numerical studies of the mixed-mode I and II crack propagation under dynamic loading using SHPB[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(12)：2 474-2 485.(in Chinese))
[9]	STOLZ A，RUIZ-RIPOLL M L. Experimental and computational characterization of dynamic loading and structural resistance of tunnels in blast scenarios[J]. Fire Technology，2016，52(5)：1 595-1 618.
[18]	郭东明，闫鹏洋，杨仁树，等. 爆破开挖中巷道围岩缺陷扩展的动焦散模型试验研究[J]. 采矿与安全工程学报，2015，32(5)：728-734.(GUO Dongming，YAN Pengyang，YANG Renshu，et al. Dynamic caustics model experimental study on the defects extension of roadway surrounding rock when blasting excavation[J]. Journal of Mining and Safety Engineering，2015，32(5)：728-734.(in Chinese))
[27]	朱哲明，李元鑫，周志荣，等. 爆炸荷载下缺陷岩体的动态响应[J].岩石力学与工程学报，2011，30(6)：1 157-1 167.(ZHU Zheming，LI Yuanxin，ZHOU Zhirong，et al. Dynamic response of defected rock under blasting load[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(6)：1 157-1 167.(in Chinese))
[29]	刘瑞峰，朱哲明，李盟，等. 爆炸载荷下I型裂纹的起裂及扩展规律研究[J]. 岩石力学与工程学报，2018，37(2)：392-402.(LIU Ruifeng，ZHU Zheming，LI Meng，et al. Initiation and propagation of mode I crack under blasting[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(2)：392-402.(in Chinese))
[36]	FREUND L B. Dynamic fracture mechanics[M]. Edinburgh：Cambridge University Press，1990：1-563.
[16]	徐文涛，朱哲明，曾利刚. 爆炸载荷下I型裂纹动态断裂韧度测试方法初探[J]. 岩石力学与工程学报，2015，34(增1)：2 767-2 772. (XU Wentao，ZHU Zheming，ZENG Ligang. Testing method study of mode-I dynamic fracture toughness under blasting loads[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(Supp.1)： 2 767-2 772.(in Chinese))
[25]	ZHU Z，WANG C，KANG J，et al. Study on the mechanism of zonal disintegration around an excavation[J]. International Journal of Rock Mechanics and Mining Sciences，2014，67：88-95.
[34]	ZHU Z，XIE H，MOHANTY B. Numerical investigation of blasting-induced damage in cylindrical rocks[J]. International Journal of Rock Mechanics and Mining Sciences，2008，45(2)：111-121.
[23]	ZAIDI A A，KOSLAN M，OTHMAN M Z，et al. Appropriate coupling solvers for the numerical simulation of rolled homogeneous armor plate response subjected to blast loading[J]. Advances in Mechanical Engineering，2013，2013(3)：1-12.
[24]	ZHU Z. Numerical prediction of crater blasting and bench blasting[J]. International Journal of Rock Mechanics and Mining Sciences，2009，46(6)：1 088-1 096.
[26]	朱哲明，刘凯，康骥鸣，等. 缓慢卸载P波诱发岩体不连续断裂破坏的可能性研究[J]. 岩石力学与工程学报，2014，33(增2)： 3 948-3 955.(ZHU Zheming，LIU Kai，KANG Jiming，et al. Study of slowly unloading P-wave causing discrete fracture mechanism[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(Supp.2)：3 948-3 955.(in Chinese))
[28]	WANG M，ZHU Z，DONG Y，et al. Study of mixed-mode I/II fractures using single cleavage semicircle compression specimens under impacting loads[J]. Engineering Fracture Mechanics，2017，177：33-44.
[30]	周磊，朱哲明，董玉清，等. 中低速冲击载荷下巷道内裂纹的动态响应[J]. 岩石力学与工程学报，2017，36(6)：1 363-1 372.(ZHOU Lei，ZHU Zheming，DONG Yuqing，et al. Dynamic response of cracks in tunnels under impact loading of medium-low speed[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(6)：1 363- 1 372.(in Chinese))
[32]	MARSHALL G P，WILLIAMS J G，TURNER C E. Fracture toughness and absorbed energy measurements in impact tests on brittle materials[J]. Journal of Materials Science，1973，8(7)：949-956.
[33]	ZHU Z，MOHANTY B，XIE H. Numerical investigation of blasting-induced crack initiation and propagation in rocks[J]. International Journal of Rock Mechanics and Mining Sciences，2007，44(3)：412-424.
[35]	胡荣，朱哲明，胡哲源，等. 爆炸动载荷下裂纹扩展规律的实验研究[J]. 岩石力学与工程学报，2013，32(7)：1 476-1 481.(HU Rong，ZHU Zheming，HU Zheyuan，et al. Experimental study of regularity of crack propagation under blasting dynamic loads[J]. Chinese Journal of Rock Mechanics and Engineering，2013，32(7)：1 476-1 481.(in Chinese))