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本文介绍了三峡工程茅坪溪土石坝施工过程中 ,沥青混凝土心墙两侧的块石爆破所诱发的振动对沥青混凝土心墙损伤影响的试验研究成果。通过各种工况下的心墙爆破振动测试及爆前爆后的声波及密度对比检测成果分析 ,并结合相关爆破振动安全标准的讨论 ,得到现有的施工工况下块石爆破所诱发的振动不会对沥青混凝土心墙产生损伤的结论。
This paper introduces the experimental research results on the impact of vibration caused by block blasting on both sides of asphalt concrete core wall on the damage of asphalt concrete core wall during the construction of the Maopingxi Earth Rockfill Dam of the Three Gorges Project. Through the vibration test of core wall under various working conditions and comparison analysis results of sound wave and density before blasting, combined with the discussion of relevant blasting vibration safety standards, the boulder blasting induced by the existing construction conditions is obtained Vibration will not cause damage to the asphalt concrete core.