| 近区爆破对土石坝安全影响分析 |
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| 引用本文： | 杨伟俊. 近区爆破对土石坝安全影响分析[J]. 水利与建筑工程学报, 2012, 10(3): 178-181 |
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| 作者姓名： | 杨伟俊 |
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| 作者单位： | 浙江省水利水电勘测设计院,浙江杭州,310002 |
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| 摘 要： | 邻近坝区爆破开挖诱发的爆破振动对土石坝安全有不利影响,确定可靠的影响分析方法、拟定合理的爆破控制措施对保证土石坝安全具有重要作用。结合工程实例,通过建立有限元模型、施加爆破振动荷载,从坝体应力和坝坡稳定等方面分析确定合理的爆破安全质点振动速度限值;根据爆破试验监测数据和有关规程规范,提出爆破分区控制措施以及爆破施工过程中需根据监测成果同步调整爆破安全控制标准、及时修正爆破施工参数的方法。提出的分析方法和控制措施可为近区爆破对土石坝安全影响和拟定爆破分区控制措施提供参考。
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| 关 键 词： | 土石坝 安全 爆破 爆破振动 影响分析 控制措施 |
Impact Analysis of Blasting Nearby on Safety of Earth-rock Dam |
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| YANG Wei-jun. Impact Analysis of Blasting Nearby on Safety of Earth-rock Dam[J]. Journal of Water Resources Architectural Engineering, 2012, 10(3): 178-181 |
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| Authors: | YANG Wei-jun |
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| Affiliation: | YANG Wei-jun(Zhejiang Investigation and Design Institute of Water Conservancy and Hydropower,Hangzhou,Zhejiang 310002,China) |
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| Abstract: | The vibration induced by the blasting near dam site can cause some adverse effects on earth-rock dam,so determining the reliable analysis method and reasonable control measures is important to ensure the safety of earth-rock dam.Combining with practical projects,the reasonable particle vibration velocity is determined through the analysis of stress and slope stability by establishing finite element model.The partition control measures of blasting are presented according to the monitoring data of blasting tests and relative specifications.Then the safety control standards and construction parameters should be adjusted according to the monitoring data in construction process.The analysis method and control measures proposed here may be a reference for the safety analysis of blasting on earth-rock dams and determining the partition control measures. |
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| Keywords: | earth-rock dam safety blasting blasting vibration impact analysis control measures |
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