| 隧道衬砌的火灾损伤程度试验与检测方法研究 |
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| 引用本文： | 彭立敏,刘小兵.隧道衬砌的火灾损伤程度试验与检测方法研究[J].实验力学,1999,14(3):395-401. |
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| 作者姓名： | 彭立敏 刘小兵 |
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| 作者单位： | 长沙铁道学院!410075 |
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| 摘 要： | 本文采用不同火灾温度场与不同燃烧时间对隧道衬砌混凝土和构件进行实际 烧损的试验手段，探讨了衬砌在高温作用后力学性能的变化规律与损伤程度；分析了隧道高温受损后，衬砌残余强度与超声波速之间的关系，以及超声法检测技术用于测试隧道火灾损伤的适用性和可靠性。
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| 关 键 词： | 隧道火灾 火损试验 残余强度 衬砌损伤 超声检测 |
A Research on the Damage Degree of Tunnel Lining Structure after Fire Accident and Its Detection |
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| PENG Limin,LIU Xiaobing,WANG Wei,DU Sicun.A Research on the Damage Degree of Tunnel Lining Structure after Fire Accident and Its Detection[J].Journal of Experimental Mechanics,1999,14(3):395-401. |
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| Authors: | PENG Limin LIU Xiaobing WANG Wei DU Sicun |
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| Institution: | Changsha Railway University |
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| Abstract: | By using burning experiments under different fire temperature and different ablazing time for the concrete structure of tunnel lining, the variation in mechanical properties and the damage degree of the lining structure after high temperature action are examined. The relation between the remaining strength of the lining and the velocity of ultrasonic wave propagating in it is also discussed. The applicability of ultrasonic detective technique used for fire damage estimation of tunnel lining is then analyzed. |
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| Keywords: | tunnel fire accident burning test lining damage remaining strength ultrasonic detection |
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