城市复杂环境场平爆破降尘降噪试验研究

复杂环境城镇爆破工程逐渐增多,城市环境建设特别是在创建卫生文明城市中对降噪和防尘的要求也随之提高,基于常用降噪降尘措施,通过现场试验:爆前洒水、覆盖彩条布、单发雷管覆盖介质,探讨切实可行的降尘、降噪、减震方法,得出爆区覆盖彩条布降尘效果最佳,平均降尘率达41.2％以上;地表雷管覆盖介质为水、沙、碎石时降噪效果最佳,平均...

Experimental Study on Dust Removal and Noise Reduction by Horizontal Blasting in Urban Complex Environmental Field

Blasting engineering projects in complex urban environment is getting more prevalent.The urban environment construction,especially the establishment of civilized and health city,increasingly requires noise reduction and dust control.For this purpose,field experiments were carried out based on common noise and dust reduction measures in order to discuss the feasible reduction methods for dust,noise and vibrations.The field experiments included:spraying water before blast,covering colored strips and covering medium on single detonators.It is concluded that the best dust control was achieved by coverage of striped color cloth on blasting area,and the average rate of dust removal was more than 41.2%.When the surface detonator was covered with water,sand and gravel,the noise and vibration reduction effect was the best,with an average noise reduction rate of 21.2%and a vibration reduction rate of 35.2%.