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一根碳纤维，拉起中国超级大桥｜活力中国调研行_我的网站

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    An aerial drone photo taken in October 2025 shows a view of the Dongshan pocket park in Guangzhou, south China's Guangdong Province. (Xinhua)When 72-year-old Shi Jikun opened his windows at home in Yuxi, southwest China's Yunnan Province, he used to hear the repeated thud of balls and blowing of whistles from an indoor sports venue near his residential community.
"During the day, I didn't dare open the windows," Shi said, recalling years when the noise disrupted his daily routine.
The sports venue has since undergone two rounds of soundproofing. Sound-absorbing materials were installed on its walls, while double-glazed soundproof windows were fitted along the side facing the residential area.
The noise has eased. "The neighborhood is quiet now, making everyday life much more comfortable," Shi noted.
Shi's experience is part of a broader move underway across China to tackle one of the less obvious costs of urbanization: the growing amount of noise packed into increasingly dense neighborhoods.
As cities expand, the likes of homes, roads, businesses, construction sites and recreational spaces are often crammed together. China has, notably, been testing a neighborhood-level response to this challenge via the development of "quiet communities," combining physical upgrades with local management and mediation.
This initiative was launched as a national pilot project in May 2023. By the end of 2025, a total of 3,272 quiet communities had been built nationwide, benefiting more than 2.4 million households, according to the Ministry of Ecology and Environment.
This approach now also has a stronger legal footing. On Saturday, China's Ecological and Environmental Code came into force, with a dedicated section on noise pollution prevention and control.
The scale of the problem is reflected in noise complaints. In 2025, cities at the prefecture level and above received about 6.83 million noise-related complaints, with social-life noise accounting for 73.2 percent.
Noise from neighbors, equipment malfunctions and disturbances from square dancing, a popular group exercise in China often held by middle-aged and older residents in public spaces, were among the most common issues raised.
China's quiet-community program is designed to address such problems before they become recurring disputes. "Quiet communities do not mean that there should be no sound," said Lu Lu, deputy head of the noise management division at the Ministry of Ecology and Environment.
The goal, Lu said, is to create a comfortable and harmonious living environment while balancing everyday activity with residents' need for quiet.
The solutions vary from place to place. In south China's Shenzhen, some newly built residential communities are incorporating noise control at the planning and design stage. Measures include low-noise pavements, vegetation buffers, separated pedestrian and vehicle routes, and automatic noise-monitoring equipment.
Older communities are using renovation projects to address noise concerns. In Xiaoshan District in east China's Hangzhou, Huiyu garden community replaced aging elevators and repaired drainage grates and other public facilities as part of its quiet-community program.
But physical upgrades alone cannot settle conflicts between neighbors.
At Fenglin Shunhe community in Weihai, eastern China's Shandong Province, residents, property managers, community officials and square-dancing groups agreed to end dancing at 8:30 p.m. The main lights in the square switch off at that time, signaling that it is time for the dancers to leave.
The key is to respond quickly to complaints and give residents and activity groups a way to negotiate solutions, said Jiang Chunyan, head of the neighborhood committee.
In another community in Shenzhen, property managers have gone further by treating renovation noise as a process to be managed proactively rather than a problem to be addressed after complaints arise.
Renovation work is divided into nine stages and mapped on a visual noise-management chart. Property managers use the chart to carry out targeted inspections as work progresses. Contractors are also required to work only during designated hours and under fully enclosed conditions.
The program still faces gaps in terms of regional coverage and long-term maintenance. Quiet communities remain concentrated in a few cities, while older neighborhoods and parts of central and western China have fewer projects. Some communities also face difficulties maintaining noise-control measures after initial upgrades are completed.
The Ministry of Ecology and Environment plans to incorporate quiet-community development into China's noise pollution prevention and control work for the 2026-2030 period. It has called for regular inspections, dynamic monitoring and follow-up visits to ensure that measures remain effective.
Zheng Shanshan, an official responsible for ecological affairs in Hangzhou's Xiangfu Subdistrict, said the next step should extend noise management from individual communities to larger areas through tools such as sound-environment maps.
"Quiet communities are only a starting point," Zheng said. "We hope to create more quiet spaces across the city."
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B |     播放          下一个          打开循环播放          00:00     /     00:00          倍速          3.0X     2.0X     1.5X     1.25X     1.0X     0.75X     0.5X          多音轨          AirPlay          0          静音播放中，点击 恢复音量          画中画          网页全屏          全屏          你可以 刷新 试试          视频信息     1.33.6          播放信息 上传日志 调试信息 [X]          视频ID     VID     -          播放流水     Flowid     -          播放内核     Kernel     -          显示器信息     Res     -          帧数     -          缓冲健康度     -          网络活动     net     -          视频分辨率     -          编码     Codec     -          mystery     mystery     -          按住画面移动小窗          21世纪经济报道记者柳宁馨 常州报道          一根碳纤维拉索，正成为我国重大基础设施建设的新材料支撑。         7月21日，在“活力中国调研行”江苏站，21世纪经济报道记者实地走访长三角碳纤维及复合材料技术创新中心（以下简称“创新中心”）了解到，碳纤维拉索已应用于桥梁领域。         （长三角碳纤维及复合材料技术创新中心展示的碳纤维材料拉索，柳宁馨/摄）          “在大桥建设中，传统钢索服役寿命约25年，而碳纤维拉索服役寿命可达100年，维护成本更低。

C | 同时，碳纤维重量更轻，可进一步提升桥梁跨度，为跨海大桥建设提供更加经济、安全的解决方案。”长三角碳纤维及复合材料技术创新中心热塑性复材首席科学家咸贵军向记者介绍。         咸贵军表示，碳纤维作为关键战略材料，曾长期面临国外封锁和垄断，一度成为制约我国高端制造发展的重要瓶颈。近年来，我国碳纤维及复合材料产业发展迅速，创新中心正围绕桥梁拉索等典型应用场景，加快推动碳纤维材料产业化应用。         如今，常州依托产业基础，加快布局先进复合材料产业，碳纤维及复合材料产业已成为当地未来产业发展的重要支撑。

D |          作为这一产业的重要创新平台，长三角碳纤维及复合材料技术创新中心由常州市人民政府、江苏省产业技术研究院和常州国家高新区管委会共同组建成立，聚焦航空航天、土木工程结构、关键装备等领域的新材料研发与应用。

E |          据咸贵军介绍，创新中心重点开展先进碳纤维、高性能与多功能复合材料、装备轻量化、异质材料连接、全寿命周期评价与循环应用等关键技术攻关，着力破解碳纤维及复合材料领域“卡脖子”难题，推动创新资源集聚和产业协同发展。         不过，创新中心成立之初也面临成果转化与落地的难题。咸贵军介绍，研究团队在工程复材、航空复材等领域具有较强科研实力，解决了一系列“0到1”的基础科学问题，但产业化仍需突破技术放大、稳定性等“1到10”的关键环节，如何推动科研成果快速走向产业，成为中心必须破解的问题。         因此，创新中心在持续开展基础研究与应用技术研发的同时，进一步完善中试平台，并用好“拨投结合”机制，推动财政资金与社会资本协同，通过内生培育项目、研发资金支持等方式，推动科研成果从实验室走向产业化应用，打通成果转化“最后一公里”。         目前，创新中心一方面承担国家“十四五”重点研发计划项目、国家自然科学基金项目、省重点基金项目等基础研究项目，另一方面承担多项重大横向课题，解决产业技术问题，并推动原创技术产业化落地和产业化公司的成立，为长三角碳纤维及复合材料产业持续发展提供创新支撑。

F |           （视频剪辑：实习生陈迎禧）。

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