1. Continuous and closed fences shall be set around the construction site as required; Safety protection facilities shall also be set up when building multi-storey and high-rise buildings. The height of the fence set in the main sections of the urban area and the urban landscape roads, airports, docks and station squares shall not be less than 2.5m, and the height of the fence set in other sections shall not be less than 1.8m.

２、围挡使用的材料应保证围栏稳固、整洁、美观。市政工程项目工地，可按工程进度分段设置围栏或按规定使用统一的连续性护栏设施。施工单位不得在工地围栏外堆放建筑材料、垃圾和工程渣土。在经批准临时占用的区域，应严格按批准的占地范围和使用性质存放、堆卸建筑材料或机具设备，临时区域四周应设置高于1ｍ的围栏

2. The materials used for enclosure shall ensure that the fence is stable, clean and beautiful. On the construction site of municipal engineering projects, fences can be set up in sections according to the project progress or uniform continuous guardrail facilities can be used according to the regulations. The construction unit shall not stack construction materials, garbage and engineering waste outside the fence of the construction site. In the area approved for temporary occupation, construction materials or machinery and equipment shall be stored and unloaded strictly according to the approved scope of occupation and the nature of use. A fence higher than 1m shall be set around the temporary area

３、在有条件的工地是，四周围墙、宿舍外墙等地方，必须张挂、书写反映企业精神、时代风貌的醒目宣传标语。

3. On the construction site with conditions, the surrounding walls, dormitory walls and other places must hang and write eye-catching slogans that reflect the spirit of the enterprise and the style of the times.

城市建筑工地外围围蔽，遮挡物。起到一种美化，整洁，统一的作用。现在基本城市建设中，都会用来的。围挡的高度一般在2米以上，常见的有2米，4米，6米和8米，或更高的12米等，围挡表面和张贴该项目的效果图和宣传画面等。或用于城市公益广告。

Enclosure and shelter around urban construction site. It plays a role of beautification, neatness and unification. It will be used in basic urban construction. The height of the enclosure is generally more than 2 meters, and the common ones are 2 meters, 4 meters, 6 meters and 8 meters, or 12 meters higher. The enclosure surface and the effect picture and publicity picture of the project are posted. Or for urban public service advertising.

围挡高度在4米以下的，一般采用单立柱式，地下深挖基础1米左右。，立柱采用直径140ｍｍ或189ｍｍ等。

If the height of the enclosure is less than 4 meters, the single column type is generally adopted, and the underground deep excavation foundation is about 1 meter., The diameter of the column is 140mm or 189mm.

围挡高度在4米以上的，一般采用双立柱式，地下深挖基础随高度的调整而调整。双立柱采用直径114ｍｍ-219ｍｍ不等。

If the enclosure height is more than 4 meters, the double-column type is generally adopted, and the underground deep excavation foundation is adjusted with the height adjustment. The diameter of double columns varies from 114mm to 219mm.

表面打镀锌瓦，一般采用0.5ｍｍ厚。

Galvanized tile is generally applied on the surface with thickness of 0.5mm.