首页|某水库爆破开挖对高压输电线塔的振动影响评价

某水库爆破开挖对高压输电线塔的振动影响评价

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通过现场爆破振动监测试验与三维有限元模拟计算,研究了某水库爆破开挖对周边高压输电线塔的动力响应特征与爆破振动的衰减规律,并依据相应规范对爆破施工方案予以评估.在此基础上,为实际爆破施工提供了可参考的爆破振动衰减的拟合公式,并提出爆破方案的优化建议,如控制最大单响药量、合理选择爆破方式以及开展振动监测等,以确保高压线塔的安全稳定运行.
Evaluation of the Impact of Blasting Vibration in a Reservoir Project on High Voltage Transmission Line Towers
Through on-site blasting vibration monitoring experiments and three-dimensional finite element simulation cal-culations,the dynamic response characteristics of surrounding high voltage transmission line towers caused by blasting excavation of a reservoir and the attenuation pattern of blasting vibration are studied.The blasting construction scheme is then evaluated according to corresponding specifications.Fitting formulas for blasting vibration attenuation are provided,which can be used as references for actual blasting construction.Optimization suggestions are also proposed for the blas-ting construction scheme,such as controlling the maximum single shot charge,selecting the reasonable blasting meth-ods,and conducting vibration monitoring,to ensure the safe and stable operation of the towers.

blasting vibrationvibration monitoringsafety assessmentattenuation pattern

武洋、王迎、王满玉、刘晓、郝国鹏、吴文洪、覃宇辉

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中国三峡建工(集团)有限公司,四川 成都 610041

中国电建集团中南勘测设计研究院有限公司,湖南 长沙 410014

武汉大学水资源工程与调度全国重点实验室,湖北 武汉 430072

爆破振动 振动监测 安全评估 衰减规律

2024

水电与新能源
湖北省水力发电工程学会 湖北能源集团股份有限公司

水电与新能源

影响因子:0.301
ISSN:1671-3354
年,卷(期):2024.38(9)