摘要
露天采矿爆破地震效应,直接关系到水工建筑物混凝土施工质量和结构安全。在浙江东部沿海某围垦工程中,通过实测振动速度结合混凝土浇注龄期评价了爆破振动对水闸工程的影响,并采用回归分析计算场地系数和衰减指数,进而预测了质点振动安全允许速度对应的炸药量。爆破振动监测与分析表明,爆破振动效应研究及炸药量预测对水工建筑物的质量安全评价具有重要意义。
Blasting seismic effect of surface mining was related directly to the concrete construction quality and structural safety of hydrological structure. For one coastal inning project in the eastern Zhejiang province, the influence of blasting vibration on sluice construction was evaluated through field surveying of vibration velocity and the age of concrete depositing; dynamite quantity concerning the allowed safety speed of particle vibration was forecast by computing field coefficient and attenuation index using regression analysis. These demonstrated that it was of far reaching importance to assess quality safety of hydrological structure under the research of blasting vibration effect and dynamite quantity forecast.
出处
《工程爆破》
北大核心
2010年第2期70-72,82,共4页
Engineering Blasting
基金
浙江省自然科学基金项目(Y506286)
关键词
矿山爆破
混凝土工程
水闸
振动监测
安全评价
Mine blasting
Concrete engineering
Sluice
Vibration monitoring
Safety evaluation
