地下综合管廊对施工扬尘污染的控制效果研究

Study on Control Effect of Underground Integrated Pipe Gallery on Construction Dust Pollution

常规的施工场地扬尘污染控制方法,在风和空气因子的作用下,需要处理的扬尘范围过大,导致污染控制效果不佳,为此研究地下综合管廊对施工扬尘污染的控制效果。根据地下综合管廊的结构特点,设置廊道活动门闸,以等距分析法作为参考依据,划分扬尘污染区域的控制范围实现扬尘污染控制。在相对封闭的环境下,由于管廊内空气流速、温湿度等分子的运动状态不佳,从而抑制扬尘粒子的活跃性。同时管廊作为一个两端半封闭、四周全封闭的固态结构,限制了扬尘粒子的活动范围,阻止扬尘粒子直接向大气扩散。经由管廊内的除尘装置除尘后,有效降低了扬尘的污染浓度,实现了对施工扬尘污染的控制。

Under the impacts of wind and air,the dust scope needed to be treated is too large,resulting in poor pollution control effect.Therefore,the control effect of underground comprehensive pipe gallery on construction dust pollution is studied.According to the structural characteristics of the underground comprehensive pipe corridor,the movable gate of the corridor is set up in this study.The isometric analysis method is taken as the reference basis to divide the control scope of dust pollution area and realize dust pollution control.In the relatively closed environment,the activity of dust particles is inhibited due to the poor movement state of air velocity,temperature and humidity and other molecules in the tube corridor.As a semi-closed solid structure at both ends and completely closed around,the pipe gallery limits the range of dust particles,preventing dust particles from directly spreading to the atmosphere.After the dust removal by the dust removal device in the pipe gallery,the dust pollution concentration is effectively reduced,and the construction dust pollution control is realized.