地下爆炸硐室震塌规律的理论与试验研究" /> 地下爆炸硐室震塌规律的理论与试验研究" /> <p class="MsoTitle" style="margin: 0cm 0cm 0pt; mso-pagination: none; punctuation-wrap: simple; mso-outline-level: body-text"><span lang="EN-US" style="color: black; mso-font-kerning: 0pt; mso-themecolor: text1">地下爆炸硐室震塌规律的理论与试验研究</span>
2025年8月11日 星期一
岩石力学与工程学报  2025, Vol. 44 Issue (5): 1110-1121    DOI: 10.3724/1000-6915.jrme.2024.0806
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地下爆炸硐室震塌规律的理论与试验研究

李  杰,徐天涵,范鹏贤,李  干,纪玉国,赵跃堂
(陆军工程大学 爆炸冲击防灾减灾国家重点实验室,江苏 南京  210007)
Theoretical and experimental study on the spalling law of tunnels subjected to underground explosions
LI Jie,XU Tianhan,FAN Pengxian,LI Gan,JI Yuguo,ZHAO Yuetang
(State Key Laboratory of Explosion and Impact and Disaster Prevention and Mitigation,
Army Engineering University of PLA,Nanjing,Jiangsu 210007,China)
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摘要 震塌破坏是地下硐室在爆炸波作用下的主要破坏现象之一。分别利用一维波动模型和块体失稳模型分析均质硬岩和裂隙岩体中地下硐室的震塌破坏规律,得到不同条件下震塌岩块的尺度、岩块震塌剥离速度与不震塌临界比例爆距计算公式,基于所提理论对现有地下硐室爆炸毁伤试验进行分析。为获取硐室真实震塌破坏数据并验证理论方法,在花岗岩中开展直墙圆拱型硐室破坏原型试验,得到比例爆距1.03 m/kg1/3条件下硐室震塌破坏现象,测得硐室顶部地冲击峰值粒子速度、岩块震塌剥离速度及硐室边壁不可逆位移值。实测结果与理论计算结果对比符合较好,验证理论计算方法的科学可靠性。
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作者相关文章
李 杰
徐天涵
范鹏贤
李 干
纪玉国
赵跃堂
关键词 地下工程震塌破坏地下硐室原型试验震塌速度    
Abstract:Spalling is a predominant failure mode observed in underground tunnels subjected to explosion waves. The spalling laws of underground tunnels in homogeneous hard rock and fractured rock masses were analyzed using a one-dimensional wave model and a block instability model,respectively. The calculation formulas for spalling block size,spalling velocity and critical scaled distance for spalling under different conditions were obtained. Existing explosion tests conducted on underground tunnels were evaluated using the proposed theoretical methods. To obtain empirical spalling data and validate the theoretical methods,a prototype explosion experiment was conducted on a U-shaped tunnel in granite. The experiment demonstrated the spalling damage phenomenon of the tunnel at a scaled distance of 1.03 m/kg1/3,and measured the peak particle velocities at the tunnel top,the ejection velocities of spalling blocks,and the irreversible displacements of the tunnel wall. The measured results show good agreement with the theoretical calculation results,which verified the scientific reliability of the proposed theoretical method.
Key wordsunderground engineering    spalling damage    underground tunnel    prototype test    spalling velocity
    
引用本文:   
李 杰,徐天涵,范鹏贤,李 干,纪玉国,赵跃堂.

地下爆炸硐室震塌规律的理论与试验研究[J]. 岩石力学与工程学报, 2025, 44(5): 1110-1121.
LI Jie,XU Tianhan,FAN Pengxian,LI Gan,JI Yuguo,ZHAO Yuetang. Theoretical and experimental study on the spalling law of tunnels subjected to underground explosions. , 2025, 44(5): 1110-1121.

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