锚固洞室抗爆模型试验锚索预应力变化特性研究
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摘要
采用抗爆模型试验的方法,进行预应力锚索对洞室的抗爆加固效应的模型试验研究,探讨试验中爆炸引起的锚索预应力变化特点,得出不同锚索加固洞室的预应力变化特性和一些规律性的认识。对试验内容进行相应的动力数值计算,从而证明试验结果的可靠性,并提出合理的锚固工程抗爆加固设计建议。
The model explosion test methods are adopted to study the anti-explosion effect of prestressed cable reinforced cavern.In this paper,the characteristics of anchorage cable prestress changes caused by explosion are specially researched,and the features of anchor cable prestress changes of different types of anchor cable reinforced caverns are analyzed and some regulations have been obtained.The corresponding numerical calculations are also carried out.The reliability of the test results is proved,and the suggestions to the anti-explosion reinforced cavern design in anchor engineering are put forward.
The model explosion test methods are adopted to study the anti-explosion effect of prestressed cable reinforced cavern.In this paper,the characteristics of anchorage cable prestress changes caused by explosion are specially researched,and the features of anchor cable prestress changes of different types of anchor cable reinforced caverns are analyzed and some regulations have been obtained.The corresponding numerical calculations are also carried out.The reliability of the test results is proved,and the suggestions to the anti-explosion reinforced cavern design in anchor engineering are put forward.
引文
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[3]孙杰,朱立新,王飞.爆炸荷载作用下潜埋结构内振动实验研究与计算[J].爆破,2003,20(4):7-10.(Sun Jie,Zhu Lixin,Wang Fei.Experimental research and calculation on vibration in shallow buried structure under explosion load[J].Blasting,2003,20(4):7-10.(in Chinese))
[4]贺虎成,唐德高,陈向欣.爆炸冲击波作用下碳纤维布加固构件抗弯特性研究[J].解放军理工大学学报(自然科学版),2002,8(6):68-73.(He Hucheng,Tang Degao,Chen Xiangxin.Study on flexural resistance of component strengthened by carbon fiber reinforced plastics under explosive blast[J].Journal of PLA University of Science and Technology(Natural Science),2002,8(6):68-73.(in Chinese))
[5]凌贤长,胡庆立,欧进萍.土-结爆炸冲击相互作用模爆试验相似设计方法[J].岩土力学,2004,25(8):1 249-1 253.(Ling Xianchang,Hu Qingli,Ou Jinping.A scale modeling method of simulation explosion test of soil-structure impactive interaction due to exploding[J].Rock and Soil Mechanics,2004,25(8):1 249-1 253.(in Chinese))
[6]曾宪明,杜云鹤,李世民.土钉支护抗动载原型与模型对比试验研究[J].岩石力学与工程学报,2003,22(11):1 892-1 897.(Zeng Xianming,Du Yuhe,Li Shimin.Testing study of prototype and model comparison on resisting dynamical load with soil nail supporting[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(11):1 892-1 897.(in Chinese))
[7]陈剑杰,孙钧,林俊德.深埋岩石硐室受爆炸应力波作用的破坏效应[J].辽宁工程技术大学学报(自然科学版),2001,20(8):402-404.(Chen Jianjie,Sun Jun,Lin Junde.Failure of deep-buried rock openings under blast stress wave[J].Journal of Liaoning Technical University(Natural Science),2001,20(8):402-404.(in Chinese))
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