央视网消息：不久前召开的中央城市工作会议强调，做好城市工作要 "以推动城市高质量发展为主题，以坚持城市内涵式发展为主线，以 推进城市更新为重要抓手。"今年以来，各地通过精心规划与设计，着力将城市的颜值、气质与城市更新有机融合，让城市更有颜值、更有特 色。 首先，我们来看看城市更新中的"科技元素"。今年，在北京等许多大城市的更新改造现场，多了一个巨型的类似"充气城堡"的白色罩子， 它是什么？有什么用呢？一起去看看。 在北京市西南二环光源里棚户区改造居住项目，记者看到，这里的施工现场一点也不热闹，远看只有一个圆形的白色气膜，像是儿童乐园 的充气城堡，它有一个专业的名称，叫作基坑气膜。 据介绍，基坑气膜的主要作用是降尘降噪，经过测试，气膜内和气膜外噪音的降低至少在20分贝以上，扬尘至少能隔绝90%。 不只是降尘降噪，基坑气膜还为工地的施工人员提供一个舒适的工作环境。在施工的过程中，气膜内的控制系统会随时监测内部的气压和 温度，通过6台大风量风机持续向内部送入新鲜空气，而内部的扬尘空气则会过滤后再排出，不会对外部的空气质量产生影响。 此外，在缩短工期方面，基坑气膜也能发挥重要作用。据介绍，按照建筑业的管理标准，在大风 ...

Group 1 - The central urban work conference emphasizes high-quality urban development, focusing on intrinsic development and urban renewal as key strategies [1] - Cities are integrating aesthetics and characteristics into urban renewal through careful planning and design [1] Group 2 - The introduction of "pit air membranes" in urban renewal projects, such as in Beijing, serves to reduce dust and noise, achieving a noise reduction of at least 20 decibels and a dust reduction rate of at least 90% [3] - The air membranes create a comfortable working environment for construction workers by continuously monitoring and regulating internal air quality [3] - The use of air membranes allows construction to proceed uninterrupted by adverse weather conditions, potentially saving up to two months in project timelines [4][6] Group 3 - The "silent mode" solution provided by air membranes is being widely adopted in various cities for municipal engineering and urban renewal projects [6]

Core Viewpoint - The implementation of a large-scale air membrane technology in the construction of the new sponge city project in Tongzhou, Beijing, aims to minimize dust and noise pollution, ensuring a better living environment for nearby residents [1][2]. Group 1: Project Overview - The air membrane is not an independent structure but a covering for the construction site of the new sponge city project, which is located in a residential area with over 18,000 residents [1]. - The project manager highlighted that traditional construction methods would significantly impact the daily lives of local residents due to dust and noise pollution [1]. Group 2: Air Membrane Technology - The air membrane technology is a new green construction method that combines dust prevention, noise reduction, energy efficiency, fire safety, and intelligence, supported by internal and external air pressure differences [2]. - The membrane material is made of high-density polyethylene, treated with three layers of special coatings, providing high strength and self-cleaning properties, capable of withstanding heavy rain and strong winds [2]. Group 3: Achievements and Benefits - The air membrane used in the project is the largest in Beijing, measuring 165 meters long, 80 meters wide, and 37 meters high, with a maximum height difference of 60 meters and a total area of 21,000 square meters [2]. - The project is the first in Beijing to use a diagonal net structure for securing the membrane and is the first nationwide to apply the air membrane throughout the entire construction cycle, achieving over 90% dust prevention and a noise reduction rate of over 71% [2]. - The air membrane also provides insulation benefits during winter, allowing construction to continue without delays due to cold weather, thus ensuring the health of workers and maintaining project timelines [3]. Group 4: Project Progress - The main structure of the "regulation pool + pump station" project within the sponge city initiative has been completed, and the project is moving into the electromechanical decoration and commissioning phase [3].