Taking a certain highway tunnel project as an example,based on the construction conditions of fractured surrounding rock,a construction plan for concentrated energy water pressure smooth blasting is proposed,the main construction process and specific construction methods are determined,and the precautions for blasting construction are summarized.The differences between the blasting technology used in this project and conventional smooth blasting technology are compared and analyzed from the aspects of the number of surrounding holes,circulation footage,etc.Practice has shown that the construction technology of concentrated energy water pressure smooth blasting has advantages such as safety,reliable quality,high efficiency,and low cost,and has achieved good application results in the excavation of fractured surrounding rock in highway tunnels.
关键词
水压光面爆破/高速公路隧道/破碎围岩/技术要点/施工效果
Key words
water pressure smooth blasting/expressway tunnels/broken surrounding rock/technical points/construction effect
维普
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