露天矿山爆破对混凝土工程的振动影响监测分析  

MONITORING AND ANALYSIS OF VIBRATION INFLUENCE ON CONCRETE CONSTRUCTION OF SURFACE MINE BLASTING

作　　者：葛双成[1,2] 刘全忠[3] 章晓桦[1,2] 洪卫良 刘超英[1,2] 

机构地区：[1]浙江省水利河口研究院,杭州310020 [2]浙江省水利防灾减灾重点实验室,杭州310020 [3]杭州市建筑设计研究院有限公司,杭州310001 [4]浙江省工程爆破协会,杭州310004

出　　处：《工程爆破》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)

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.

关 键 词：矿山爆破 混凝土工程 水闸 振动监测 安全评价 

分 类 号：O384[理学—流体力学]