在城市的建设进程中，工程围挡是随处可见的存在。它们不仅是施工现场的 “守护者”，默默承担着多重关键角色，更是城市形象的微妙展示者。

In the process of urban construction, engineering fences are ubiquitous. They are not only the "guardians" of the construction site, silently assuming multiple key roles, but also subtle exhibitors of the city's image.

从类型上看，工程围挡可谓丰富多样。彩钢围挡以彩钢板为核心材料，重量轻、耐腐蚀，安装简便灵活，能多次循环使用，对于道路施工、桥梁建设这类短期施工项目或是需要频繁拆除挪用的工程而言，是绝佳选择。PVC 围挡由聚乙烯和钙粉制成，韧性好、光洁度高、美观易清洁 ，耐用性长，常用于房屋建设、地铁施工等长期固定施工场景，尽管安装稍显麻烦，拆除再挪用时会有一定损耗。金属围挡以钢板为主要材质，强度高、不易变形，美观度和光洁度都较高，使用年限能达到 3 年以上，多应用于高速公路建设、桥梁施工等重要施工场所，不过使用时需注意维护保养，防止其变形。装配式围挡由预制构件组成，标准化设计使其便于运输和存储，可快速安装和拆除，适合工期在 1 个月以上的施工现场。砌体围挡采用空心砖、水泥砂浆等材料砌筑，抗风强度高、结构稳固，适用于工期较长、位于特殊地段（如机场、火车站）的主体结构施工围挡，但安装和拆除过程复杂耗时。

移动式围挡包括水马和铁马等，轻便易操作，能根据施工进度快速调整，适用于工期在 15 天以下的管线改迁施工围挡。园林绿化工程围挡适用于 7 天以内的园林绿化工程，两侧设置砂袋压重，下脚喷刷黄黑相间的交通安全斑马纹，既隔离又能融入园林环境。应急抢险工程围栏框架采用镀锌管和镀锌板制作，表面粘贴反光膜，注明工程类型和建设单位，高可见性和警示效果能在夜间或低能见度时提供安全警示 ，用于应急抢险工程。

From the perspective of types, engineering enclosures can be described as diverse and abundant. Color steel fence is made of color steel plate as the core material, which is lightweight, corrosion-resistant, easy and flexible to install, and can be reused multiple times. It is an excellent choice for short-term construction projects such as road construction and bridge construction, or projects that require frequent demolition and diversion. PVC fences are made of polyethylene and calcium powder, with good toughness, high smoothness, beautiful appearance, easy cleaning, and long durability. They are commonly used in long-term fixed construction scenarios such as housing construction and subway construction. Although installation may be a bit cumbersome, there may be some wear and tear when dismantled and reused. Metal fences are mainly made of steel plates, which have high strength, are not easily deformed, have high aesthetics and smoothness, and can be used for more than 3 years. They are mostly used in important construction sites such as highway construction and bridge construction. However, maintenance and care should be taken during use to prevent deformation. Prefabricated enclosures are composed of prefabricated components, standardized design makes them easy to transport and store, can be quickly installed and removed, and are suitable for construction sites with a construction period of more than one month. The masonry enclosure is made of hollow bricks, cement mortar and other materials, with high wind resistance and stable structure. It is suitable for the construction of main structures in special areas with long construction periods (such as airports and train stations), but the installation and removal process is complex and time-consuming. Mobile enclosures include water horses and iron horses, which are lightweight and easy to operate. They can be quickly adjusted according to the construction progress and are suitable for pipeline relocation construction enclosures with a construction period of less than 15 days. The enclosure for landscaping projects is suitable for landscaping projects within 7 days. Sand bags are placed on both sides to press and yellow and black traffic safety zebra stripes are sprayed on the bottom of the fence, which not only isolates but also integrates into the landscaping environment. The fence frame for emergency rescue projects is made of galvanized pipes and galvanized sheets, with reflective film pasted on the surface, indicating the project type and construction unit. The high visibility and warning effect can provide safety warnings at night or in low visibility, and is used for emergency rescue projects.

这些围挡的功能不容小觑。首要功能是分隔施工区域，明确划分出施工场地与外部环境的界限，阻止无关人员随意进入施工区域，保障施工安全有序进行，同时也让行人免受施工过程中的潜在危险。在降噪防尘方面，围挡能有效降低施工噪音向外传播，减少对周边居民和环境的干扰；阻挡施工产生的尘土飞扬，一定程度上改善空气质量。而且，围挡还具备安全警示功能，通过在围挡上设置醒目的安全警示标志、标语，提醒过往行人、车辆注意施工安全，避免发生意外事故。从城市形象展示角度来讲，设计美观、内容积极的围挡能成为城市街头独特的风景线。比如在围挡上张贴城市文化宣传画、公益广告、项目效果图等，不仅美化了施工区域周边环境，还传播了城市文化、展示了项目特色，提升了城市的整体形象和文化内涵 。

The function of these fences should not be underestimated. The primary function is to separate the construction area, clearly delineate the boundary between the construction site and the external environment, prevent unrelated personnel from entering the construction area at will, ensure safe and orderly construction, and also protect pedestrians from potential dangers during the construction process. In terms of noise reduction and dust prevention, enclosures can effectively reduce the outward propagation of construction noise and minimize interference with surrounding residents and the environment; Blocking the dust generated by construction can improve air quality to a certain extent. Moreover, the fence also has a safety warning function. By setting up prominent safety warning signs and slogans on the fence, pedestrians and vehicles passing by are reminded to pay attention to construction safety and avoid accidents. From the perspective of urban image display, well-designed and actively designed fences can become unique scenic spots on the streets of the city. For example, posting urban cultural propaganda posters, public service advertisements, project renderings, etc. on the fence not only beautifies the surrounding environment of the construction area, but also spreads urban culture, showcases project characteristics, and enhances the overall image and cultural connotation of the city.

工程围挡的类型与功能紧密相连，共同服务于城市建设，在保障施工安全、维护城市环境、展示城市形象等方面发挥着不可或缺的作用 。我们应重视工程围挡的合理选择与设计，让其在城市发展中展现更大价值。

The types and functions of engineering enclosures are closely linked, serving urban construction together and playing an indispensable role in ensuring construction safety, maintaining the urban environment, and showcasing the city's image. We should attach importance to the reasonable selection and design of engineering enclosures, so that they can demonstrate greater value in urban development.