炸药震源的地震安全性野外实验研究
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摘要
选定一块场地,针对相同井深、不同药量的情况,进行炸药震源的地震安全性野外实验,用Etna数字强震动加速度仪记录每次爆破时房屋振动的加速度。在选定房屋结构的地基、窗台、屋顶等3个位置分别布设了仪器,记录结构响应的加速度波形。为了与《爆破安全规程》的参考标准对应,将加速度值转换成速度值,并对位于屋顶的结构响应速度峰值进行分析。通过对结构响应、安全距离、频率的研究,分析建筑物结构对每次爆破的响应,并对其安全性进行讨论。
There is a widespread concern over the study of seismic safety with explosive source as time goes on. As far as explosive source itself is concerned, the selection of charge size and well depth has the much effect on excitation energy and frequency. So in the view of the same well depth and different charge sizes, we selected a site for a field experiment to study the seismic safety with explosive source. Accelerograms of every explosion were observed by acceleration meter. Measurements were conducted with the accelerometers that were laid on the basement, windowsill, and rooftop. Acceleration was transformed to velocity in order to correspond with the Safety Regulations for Blasting, and analysis was conducted to the measured data that was acquired from the rooftop. It presents the analysis of structural response, safe distance, vibration frequency in explosive source to study the structural response. We discussed the seismic safety and offered references, which can help direct field-seismic gathering, increase seismic safety and minimize economic expenditure.
There is a widespread concern over the study of seismic safety with explosive source as time goes on. As far as explosive source itself is concerned, the selection of charge size and well depth has the much effect on excitation energy and frequency. So in the view of the same well depth and different charge sizes, we selected a site for a field experiment to study the seismic safety with explosive source. Accelerograms of every explosion were observed by acceleration meter. Measurements were conducted with the accelerometers that were laid on the basement, windowsill, and rooftop. Acceleration was transformed to velocity in order to correspond with the Safety Regulations for Blasting, and analysis was conducted to the measured data that was acquired from the rooftop. It presents the analysis of structural response, safe distance, vibration frequency in explosive source to study the structural response. We discussed the seismic safety and offered references, which can help direct field-seismic gathering, increase seismic safety and minimize economic expenditure.
引文
吴立、陈建平、舒家华,1999,爆破地震效应的实质及安全距离和破坏标准,地质勘探安全,2,21～23。
陆基孟,1993,地震勘探原理,东营:中国石油大学出版社。
吴克刚、傅光明,2007,爆破拆除建筑物时的安全距离影响因素分析,采矿技术,7(3),122～124。
罗忆、卢文波、陈明等,2010,爆破振动安全判据研究综述,爆破,27(1),14～22。
曾晟、杨仕教、谭凯旋等,2008,爆破振动对地表建筑稳定性影响实验,采矿与安全工程学报,25(2),176～179。
叶洲元、周志华,2005,爆破震动安全距离的优化计算,中国安全科学学报,15(3),57～60。
何鹄、顾月兵,2008,爆破震动对附近民房影响情况的分析,西部探矿工程,1,136～138。
李洪涛、舒大强、卢文波等,2010,建筑物对爆破振动中不同频率能量成分的响应特征,振动与冲击,29(2),154～158。
张智、刘财、邵志刚,2003,地震勘探中的炸药震源药量理论与实验分析,地球物理学进展,18(4),724～728。
李孝林、穆太升、董鑫等,2001,频率在爆破震害中的作用及其影响因素分析,工程爆破,7(3),15～18。
王俊平、陈宝心,2005,爆破地震波作用下建筑物的动力响应分析方法,西部探矿工程,9,134～139。
中华人民共和国国家质量监督检验检疫总局,2003,爆破安全规程(GB6722-2003代替GB6722-1986等),北京:中国标准出版社。
陆基孟,1993,地震勘探原理,东营:中国石油大学出版社。
吴克刚、傅光明,2007,爆破拆除建筑物时的安全距离影响因素分析,采矿技术,7(3),122～124。
罗忆、卢文波、陈明等,2010,爆破振动安全判据研究综述,爆破,27(1),14～22。
曾晟、杨仕教、谭凯旋等,2008,爆破振动对地表建筑稳定性影响实验,采矿与安全工程学报,25(2),176～179。
叶洲元、周志华,2005,爆破震动安全距离的优化计算,中国安全科学学报,15(3),57～60。
何鹄、顾月兵,2008,爆破震动对附近民房影响情况的分析,西部探矿工程,1,136～138。
李洪涛、舒大强、卢文波等,2010,建筑物对爆破振动中不同频率能量成分的响应特征,振动与冲击,29(2),154～158。
张智、刘财、邵志刚,2003,地震勘探中的炸药震源药量理论与实验分析,地球物理学进展,18(4),724～728。
李孝林、穆太升、董鑫等,2001,频率在爆破震害中的作用及其影响因素分析,工程爆破,7(3),15～18。
王俊平、陈宝心,2005,爆破地震波作用下建筑物的动力响应分析方法,西部探矿工程,9,134～139。
中华人民共和国国家质量监督检验检疫总局,2003,爆破安全规程(GB6722-2003代替GB6722-1986等),北京:中国标准出版社。
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