声波测试技术在评价爆破震动对岩体的影响中的应用
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摘要
在抽水蓄能电站上水库盆的岩体开挖过程中,通常采用工程爆破的技术手段。爆破施工中要尽可能减小爆破震动对上水库盆的影响,控制岩体松动破坏的范围,为下一步防渗工程的实施奠定基础。如何在提高工程施工效率的同时严格控制爆破震动对岩体产生影响,需要通过各种监测手段和技术方法来监测、分析和评价爆破施工对岩体的影响范围,然后来指导爆破施工。本文通过具体工程案例,介绍了施工前或施工后通过声波测试的实际应用,来评价爆破震动对周围岩体的影响,并圈定具体影响范围。
In the process of rock excavation on reservoir basin of the pumped-storage power station, blasting technology is usually adopted. For further implementation of the seepage control project, we must minimize the blasting vibration on reservoir basin during the blasting construction and controlling the infl uence of the scope of rock loose damage. For improving construction effi ciency and strictly controlling impact of blasting vibration on rock, it needs to monitor tools and techniques through a variety of methods to monitor, analyze and evaluate the impact of blasting on rock mass range, and then to guide the blasting. This paper describes the specifi c case of the construction project before or after construction through the practical application of acoustic test, to evaluate the blasting vibration impact on the surrounding rock, and to delineate the specifi c infl uence.
In the process of rock excavation on reservoir basin of the pumped-storage power station, blasting technology is usually adopted. For further implementation of the seepage control project, we must minimize the blasting vibration on reservoir basin during the blasting construction and controlling the infl uence of the scope of rock loose damage. For improving construction effi ciency and strictly controlling impact of blasting vibration on rock, it needs to monitor tools and techniques through a variety of methods to monitor, analyze and evaluate the impact of blasting on rock mass range, and then to guide the blasting. This paper describes the specifi c case of the construction project before or after construction through the practical application of acoustic test, to evaluate the blasting vibration impact on the surrounding rock, and to delineate the specifi c infl uence.
引文
[1]GB6722-2003.《爆破安全规程》.北京:中国标准出版社,2004.
[2]孟吉复惠鸿斌.《爆破测试技术》.北京:冶金工业出版社,1990.
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[10]黄来源,周积响.质点振动速度监测在爆破掘进工程中的应用[J].城市地质,2011,01(6):30~35.
[2]孟吉复惠鸿斌.《爆破测试技术》.北京:冶金工业出版社,1990.
[3]张雪亮,黄树棠.《爆破地震效应》.北京:地震出版社,1980.
[4]李鹏举.声波测井资料高分辨率处理方法[D].大庆石油学院,2003年.
[5]陈宝心,彭德红,许名标.“应用声波测试技术分析开挖爆破对边坡的影响[J].爆破,.2004,04(2):20~24.
[6]姚洪,杨勤海.三峡库区松散地质体加固声波测试法试验研究[J].勘察科学技术,2006,03.
[7]李兴文,张建华.水工隧洞围岩完整性声波检测与评价[J].西部探矿工程,2006,05.
[8]马荣田.岩体声波测试技术及其在巷道围岩岩体波速测试中的应用[J].铁道建筑,2006,10.
[9]贾晓娟,张世雄,任高峰.安太堡露天矿不采区声波现场测试与分析[J].露天采矿技术,2008,02.
[10]黄来源,周积响.质点振动速度监测在爆破掘进工程中的应用[J].城市地质,2011,01(6):30~35.
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