工程爆破

2005, (04) 76-79

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70m高冷却塔爆破拆除震动测试及分析
MONITORING AND ANALYSIS OF IMPACT VIBRATION CAUSED BY DEMOLISHING A COOLING TOWER OF 70M HIGH

张光雄;杨军;金波;
ZHANG Guang-xiong~1,YANG Jun~1,JIN Bo~2(1.State Key Laboratory of Explosion Science and Technology of Beijing Institute of Technology,Beijing 100081,China;2.Thermoelectricity Factory of Handan,Handan 056000,Hebei,China)

摘要(Abstract):

在太原第二热电厂冷却塔爆破拆除中,对地震波强度进行了监测,其中的3号冷却塔为目前国内最高的采用爆破方式拆除的双曲线型冷却塔。文中用量纲分析的相关理论,对建筑物倒塌触地的振动效应进行理论推导,得出了质点振动速度的计算公式;通过对实测数据分析,与以往非同类爆破工程的爆破震动进行对比,得出了该类构筑物爆破拆除时地震波的一些不同特征和规律,并提出相关建议,为其它同类爆破拆除工程提供参考。
The monitoring of seismic intention was carried out in the blasting demolition of the cooling tower,which is located in the second thermoelectricity factory in Taiyuan whose No 3 tower is the highest hyperbolic cooling tower demolished by blasting in our country.Through dimension analysis,a formula is given to calculate the PPV at the moment when a building impacting the ground.After monitoring the impact and analyzing the data of ground vibration,also compared with the dissimilar demolition blasting,some different characteristics and rules were obtained.The paper also gave some proposal of control the vibration for the reference of similar projects.

关键词(KeyWords): 量纲分析;爆破拆除;振动监测;冷却塔;触地振动
Dimension analysis;Demolition blasting;Vibration monitoring;Cooling tower;Impact vibration

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作者(Author): 张光雄;杨军;金波;
ZHANG Guang-xiong~1,YANG Jun~1,JIN Bo~2(1.State Key Laboratory of Explosion Science and Technology of Beijing Institute of Technology,Beijing 100081,China;2.Thermoelectricity Factory of Handan,Handan 056000,Hebei,China)

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