| In recent years,with the rapid development of urbanization in China,atmospheric particulate pollutants have become one of the most important factors affecting urban air quality.With the further acceleration of urbanization and the rapid development of infrastructure such as real estate and public facilities in our province,the dust generated during the construction of construction projects has become an important source of air pollution affecting the quality of air environment in our province.Although in recent years,our province has begun to adopt various control measures and control measures for construction dust,but no more perfect detection and control system has been formed.In order to improve the construction environment and protect the safety and health of the constructors,based on the current situation of the impact of construction dust on the atmospheric environment,this paper adopts on-the-spot detection and analysis of the actual project,and divides the construction stage of the construction project into three important stages as the research object of the whole construction stage,namely,earthwork stage,main work stage and decoration stage.By using the method of getting samples from the measured data in the construction site,the dust-lifting situation in the whole construction stage is studied.The measured data show that the dust-lifting concentration varies greatly in different construction stages,and there are still differences in different construction activity areas in the same construction stage.In view of the construction activities in the construction process,this study puts forward corresponding dust control measures for each construction stage in the construction process according to the actual site detection.In the stage of earthwork,fog guns and spraying water are used for excavation and backfilling,and bare soil is covered by dense mesh with high density to speed up the hardening of main transportation roads in the site area;in the main stage,woodworking workshops should be set in relatively open and well ventilated areas,and garbage should be cleaned up in time;in the masonry workshops,water should be sprayed in time,and the layout of wall brick row should be arranged at the same time.Optimize design;keep working face clean and tidy before template disassembly,clean floor garbage in time;spray water and dust in time when drilling holes in indoor work and decoration stage;when putty construction,set material mixing place in a better ventilatedposition,clean up waste materials in time,or use finished putty paste. |