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较多的公路施工需通过光面爆破技术来稳定围岩、充分利用围岩自身的承载力,减少超挖、欠挖的问题。但目前,大断面隧道的光面爆破技术仍处于探索阶段,改进的空间依然很大。本文结合高速铁路某隧道实际,从光面爆破定义、参数选定、参数计算过程设计等方面入手,详细介绍了光面爆破的施工方案,提出相应的改进方案,确保施工安全,同时提高工程质量和进度。
More road construction through the smooth blasting technology to stabilize the surrounding rock, make full use of the surrounding rock itself bearing capacity, reduce over-excavation, under-digging problems. However, at present, the smooth blasting technology of large section tunnels is still under exploration and the space for improvement is still huge. Based on the actual situation of a tunnel in high-speed railway, this paper introduces the construction plan of smooth blasting, puts forward the corresponding improvement schemes to ensure the safety of construction and improve the quality of construction from the aspects of definition of smooth blasting, parameter selection and parameter calculation process design. And progress.