刘敦文,宋广晨,褚夫蛟,程建,曾佳龙

• 1:中南大学资源与安全工程学院

摘要(Abstract)：

新建隧道爆破开挖有可能引起邻近既有隧道的损伤。以湖南益阳亮轩公隧道为研究对象,利用ANSYS/LS-DYNA模拟了邻近隧道爆破对既有隧道的影响,分析了最大段装药量对隧道迎爆面震动速度的影响,模拟了最大段装药量为6 kg、24 kg、96 kg时迎爆侧的震动速度。结果表明,震动速度随最大段药量增加而增大,但增速趋于平缓。当最大段装药量为270 kg时,爆破效率最高。最后提出了一些控制爆破震动的措施。

关键词(KeyWords)： 安全工程;邻近隧道;有限元方法;数值模拟;爆破震动

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(50490270)

作者(Author): 刘敦文,宋广晨,褚夫蛟,程建,曾佳龙

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