连日来，江华境内国道G207线K3509+877至K3514+320路段的大修工程正紧张有序地推进，施工团队通过运用就地冷再生技术，对道路进行全面修复和提升。

　　In recent days, the major maintenance project of the G207 national highway section from K3509+877 to K3514+320 in Jianghua has been progressing intensively and orderly. The construction team has comprehensively repaired and upgraded the road by using on-site cold recycling technology.

　　在河路口镇尖山村施工现场，机械的轰鸣声此起彼伏，移动破碎机、罐车、就地再生机、压路机等设备协同作业，沿着施工路面缓缓推进。G207国道河路口段作为连接湘桂的重要通道，交通流量较大，尤其是大型货运车辆往来频繁。近年来，随着交通量的持续增长，路面破损情况日益严重。考虑到项目两侧房屋密集，路面不适宜大幅抬升，经过对路面结构和基层类型的综合比较，最终决定采用就地碎石化后水泥冷再生基层+沥青混凝土路面作为施工方案。目前，该项目在确保安全和质量的前提下，加快施工进度，确保工程如期完成。

　　At the construction site in Jianshan Village, Helukou Town, the roar of machinery echoed one after another, and mobile crushers, tank trucks, on-site recycling machines, rollers and other equipment worked together to slowly advance along the construction road. As an important passage connecting Hunan and Guangxi, the G207 National Highway at the intersection has a large traffic flow, especially with frequent traffic of large freight vehicles. In recent years, with the continuous growth of traffic volume, road surface damage has become increasingly severe. Considering the dense density of houses on both sides of the project and the unsuitability of significantly raising the road surface, after a comprehensive comparison of the road surface structure and base type, it was ultimately decided to adopt on-site crushed stone cement cold recycled base+asphalt concrete pavement as the construction plan. At present, the project is accelerating the construction progress while ensuring safety and quality, ensuring that the project is completed on schedule.

　　“我们每天早晨6点半到达现场，检查完机器设备以后，就进行施工，按照每天的工作量，大概到晚6点就可以收工。”施工现场负责人何均说道。

　　We arrive at the site at 6:30 every morning, inspect the machinery and equipment, and then start construction. According to the daily workload, we can finish work around 6 pm, "said He Jun, the person in charge of the construction site.

　　“这是我们首次采用全深式就地碎石化水泥冷再生施工工艺，相比传统工艺成本节约10%左右、工期缩短超三分之一，能最大限度减少石材的开采，降低建设成本，又有效解决了废旧料带来的环境污染问题，取得最大经济效益和社会效益。”江华公路建设养护中心养护股工程管理员朱亚斌说道。

　　This is the first time we have adopted the fully deep on-site crushing and cement cold recycling construction process, which saves about 10% of the cost and shortens the construction period by more than one-third compared to traditional processes. It can minimize the mining of stone materials, reduce construction costs, and effectively solve the environmental pollution problem caused by waste materials, achieving maximum economic and social benefits, "said Zhu Yabin, the engineering administrator of the maintenance unit of Jianghua Highway Construction and Maintenance Center.

　　所谓就地冷再生技术就是利用现有旧路材料作为新修路面骨料，再按相关要求添加新料进行拌合，形成新的水稳基层，经过现场常温拌合、摊铺、碾压等工序，形成路面结构层的再生。旧路材料循环利用率可达100%，并且无需再加铺新的水稳类机构层，降低了路面标高抬升，有效解决公路维修越来越高的问题。

　　The so-called on-site cold recycling technology is to use existing old road materials as new pavement aggregates, and then add new materials according to relevant requirements for mixing, forming a new water stable base layer. After on-site normal temperature mixing, paving, rolling and other processes, the pavement structure layer is regenerated. The recycling rate of old road materials can reach 100%, and there is no need to add new water stable structural layers, which reduces the elevation of the road surface and effectively solves the problem of increasingly high road maintenance.

　　“本次路面改造计划全长共4.5公里，总投资约1300万元，目前我们正在进行旧混凝土路面碎石化、就地水泥冷再生同步施工，完成冷再生施工后，再统一进行沥青面层铺设。”江华公路建设养护中心养护股工程管理员朱亚斌说道。

　　The total length of this road surface renovation plan is 4.5 kilometers, with a total investment of about 13 million yuan. Currently, we are carrying out synchronous construction of old concrete pavement fragmentation and on-site cement cold recycling. After completing the cold recycling construction, we will uniformly lay the asphalt surface layer, "said Zhu Yabin, the project manager of the maintenance department of Jianghua Highway Construction and Maintenance Center.

　　近年来，江华公路建设养护中心坚持“优质、创新、绿色、环保”的理念，多方面引进新技术，积极采用新工艺，不断优化设计方案，严把工程质量与安全关，持续在“消除次差等路、提升中等路、巩固优良等路”上下功夫，不断提升公路服务水平，提高群众交通出行的舒适性、安全性。

　　In recent years, Jianghua Highway Construction and Maintenance Center has adhered to the concept of "quality, innovation, green, and environmental protection", introduced new technologies from various aspects, actively adopted new processes, continuously optimized design schemes, strictly controlled engineering quality and safety, and continuously worked on "eliminating inferior roads, improving medium roads, and consolidating excellent roads", continuously improving the level of highway services, and enhancing the comfort and safety of public transportation.

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