田湾核电二期深孔台阶爆破振动监测与分析
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摘要
针对田湾核电站二期工程台阶爆破引起的振动对一期工程建筑物的影响,在现场对离爆破地点最近且最敏感的核岛进行了爆破振动监测。本文对采集的数据进行了较全面的分析,得出了台阶爆破振动质点振动加速度衰减参数k、α的最佳取值;同时得出在当地条件下,爆破振动加速度与比例距离的关系、爆破振动加速度与不耦合系数的关系,并发现水平方向爆破振动加速度的峰值是垂直方向上的3～5倍。这些爆破振动监测数据与分析结果,为后期施工提供了理论和技术指导。
Considering the potential vibrating impact caused by the bench long hole blasting conducted in second-stage construction of Tianwan nuclear power station on the buildings built in first-stage project,blasting vibration of nuclear pile closest to blasting site and most susceptive to blasting was monitored,and the data collected from monitoring was analyzed. The present paper,based on a comprehensive analysis of the collected data,elicited the optimum value range of attenuation parameters (k and α) of vibrating acceleration of vibrating particle in bench blasting seism in this region. And meanwhile,it also deduced the correlation between blasting vibration acceleration and proportional distance,and that between blasting vibration acceleration and uncoupled coefficient under local site conditions. Furthermore,the paper found the fact that the peak value of blasting vibration acceleration in the horizontal direction was three to five times of that in the vertical direction. These studies provided theoretical and technological guidance to the later construction of this project.
Considering the potential vibrating impact caused by the bench long hole blasting conducted in second-stage construction of Tianwan nuclear power station on the buildings built in first-stage project,blasting vibration of nuclear pile closest to blasting site and most susceptive to blasting was monitored,and the data collected from monitoring was analyzed. The present paper,based on a comprehensive analysis of the collected data,elicited the optimum value range of attenuation parameters (k and α) of vibrating acceleration of vibrating particle in bench blasting seism in this region. And meanwhile,it also deduced the correlation between blasting vibration acceleration and proportional distance,and that between blasting vibration acceleration and uncoupled coefficient under local site conditions. Furthermore,the paper found the fact that the peak value of blasting vibration acceleration in the horizontal direction was three to five times of that in the vertical direction. These studies provided theoretical and technological guidance to the later construction of this project.
引文
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〔12〕杨力,徐全军,张家坤,等.水下钻孔爆破对装船码头影响的监测与分析[J].工程爆破,2007,13(2):78-82.
〔2〕夏红兵,汪海波,宗琦.爆破震动效应控制技术综合分析[J].工程爆破,2007,13(2):83-86.
〔3〕刘维柱.田湾核电站负挖爆破地震波衰减参数的回归与分析[J].爆破,2003,20(2),72-74.
〔4〕叶序双.爆炸力学基础[M].南京:解放军理工大学工程兵工程学院,1998.
〔5〕孟吉复,惠鸿斌.爆破测试技术[M].北京:冶金工业出版社,1992.
〔6〕刘建亮.工程爆破测试技术[M].北京:北京理工大学出版社,1994.
〔7〕张玉明,张奇,白春华,等.爆炸振动测试技术若干基本问题的研究[J].爆破,2002,19(2):1-3.
〔8〕中国科学技术信息研究所,东方振动和噪声技术研究所.中国科技成果(INv专刊)[A].中国科技成果[C].2000.
〔9〕龙源,娄建武,徐建军.小波分析在结构物对爆破振动响应的能量分析法中的应用[J].爆破器材,2001,30(3):1-5.
〔10〕范磊,沈蔚.爆破振动频谱特性实验研究[J].爆破,2001,18(4):l8-20.
〔11〕罗开军,庙延钢,张智宇,等.兰尖铁矿保护平硐溜井的爆破减震技术措施[J].工程爆破,2006,12(4):60-63.
〔12〕杨力,徐全军,张家坤,等.水下钻孔爆破对装船码头影响的监测与分析[J].工程爆破,2007,13(2):78-82.
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