混凝土边坡爆破试验动态应变测试及分析Dynamic Strain Test and Analysis of Concrete Slope Blasting Test
黄小武,钟冬望,殷秀红,何理,司剑峰
摘要(Abstract)：
通过室内混凝土边坡模型试验,利用动态应变测试技术,对爆炸载荷作用下岩质边坡的动力特性进行分析研究。研究表明:在边坡底部设置预裂缝,可以将边坡受爆炸荷载作用下的切向应力平均降低29.8%,径向应力平均降低45.9%。分析不同延期时间下坡面测点的应变波形图,发现延期时间的长短会影响到相邻炮孔起爆时是否会发生应变叠加,混凝土边坡延时爆破开挖过程中,延期时间大于15 ms,对应变峰值的影响较小。
关键词(KeyWords)： 边坡工程;模型试验;动态应变;延期时间
基金项目(Foundation): 国家自然科学基金项目(50774056);国家自然科学基金项目(51174147)
作者(Author): 黄小武,钟冬望,殷秀红,何理,司剑峰
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