转自：北京青年报客户端 近日，北京市交通委发布《二环主路、辅路维修工程设计（设计）招标公告》，根据招标公告内容，北 京拟对32.7公里二环主路进行大修，并同步对沿线匝道、桥梁（包括上跨桥）、地下通道等进行维修。 北京二环路是北京市第一条环城快速公路，1992年9月建成通车，是中国第一条全封闭、全立交、无红 绿灯的城市快速环路，全长32.7公里，采用全封闭、全立交设计，沿线分布29座立交桥。 二环路作为北京市城区交通主干线，发挥着贯通区域交通、疏解核心区交通流量的重要作用。上次大修 时间为2002年，距今已久。近年来，随着北京城市建设及经济的快速发展，交通流量增长迅速，二环路 交通量长期处于饱和状态，路面状况老化破损日益突出，故北京拟对二环主路进行大修。 根据招标公告，二环主路维修工程设计，总长度约32.7公里，总面积约91.53万平方米，涉及沿线匝道、 桥梁（包括上跨桥）、地下通道等。二环辅路维修工程设计，总长度约32.7公里，总面积约75.01万平方 米，涉及沿线匝道、桥梁（包括上跨桥）、地下通道等。 工程设计内容包括道路桥梁、园林绿化、景观照明等。具体来讲，包括聘请规划、景观、绿化等行业专 家，针对功能、 ...

Core Insights - The construction of the southern section of the airport central urban expressway is progressing well, with approximately 50% of the overall project completed. This project will significantly enhance traffic efficiency for citizens traveling to Changsha Huanghua International Airport [1][6] Project Overview - The project is being invested in by the Airport Group and led by Hunan Construction Group, with a total construction investment of approximately 860 million yuan (about 8.6 billion yuan). The project has already achieved a production value of nearly 400 million yuan (about 4 billion yuan) [3] - The total length of the expressway is approximately 4.15 kilometers, consisting of both ground-level expressway and elevated bridge sections, with the elevated bridge spanning about 1.88 kilometers. The mainline expressway is designed for a speed of 60 kilometers per hour [3] - The construction employs patented technology from Tsinghua University, specifically the steel-concrete composite beam structure, which will enhance the load-bearing and durability performance of the bridges [3] Construction Progress - Nearly 300 workers are currently engaged in various construction tasks, including roadbed, rainwater and sewage pipelines, and bridge construction. Multiple processes are being advanced simultaneously to ensure project progress [6] - The project aims to achieve its target of opening to traffic by October 2026, with ongoing efforts to accelerate the construction of the upper structure of the bridges [6] Project Significance - This project is a crucial part of Changsha's expressway network, connecting major urban roads and improving transportation efficiency around Huanghua Airport. It includes various engineering components such as roads, bridges, drainage, lighting, landscaping, and traffic monitoring [7] - Upon completion, the project will significantly improve the transportation conditions around Huanghua Airport, enhance the connectivity of the regional road network, and play an important role in promoting regional economic development and optimizing citizens' travel experience [7]

Core Viewpoint - The construction of the Kinshasa Ring Road project in the Democratic Republic of the Congo is progressing rapidly, with 60 kilometers of the gravel base completed, significantly improving local transportation and alleviating traffic congestion in Kinshasa [1][2]. Group 1: Project Overview - The Kinshasa Ring Road project, initiated on June 22, 2024, is a crucial infrastructure project aimed at connecting the city center with surrounding villages, featuring a total length of approximately 72 kilometers and designed as a dual four-lane road [2][3]. - The project is funded by Huagang Mining Co., Ltd., organized by China-Congo Infrastructure Construction Co., Ltd., and constructed by Chinese enterprises including China Railway No. 8 Engineering Group [2][3]. Group 2: Traffic and Economic Impact - Kinshasa, with a population exceeding 17 million, faces severe traffic congestion, with the N1 national road carrying 70% of the city's traffic on a two-lane road, leading to significant delays and increased transportation costs [2][3]. - The completion of the ring road is expected to divert 30% of Kinshasa's traffic flow, thereby reducing congestion in the city center and lowering transportation costs [3]. Group 3: Construction Quality and Challenges - The construction team has adapted techniques to local conditions, ensuring high-quality progress despite challenges such as tropical heat and seasonal flooding [6][7]. - Innovative construction methods, including the development of heat-resistant asphalt and specialized equipment, have been employed to address the unique geological and climatic challenges of the region [6][7]. Group 4: Social Responsibility and Employment - The project has created over 3,000 local jobs and trained more than 400 local technicians in various trades, contributing to the development of local skills and employment opportunities [7][8]. - Local residents have reported significant improvements in their daily lives, including reduced commuting times and lower transportation costs for goods, enhancing overall economic activity in the area [8].

Core Viewpoint - The construction of the Kinshasa Ring Road project in the Democratic Republic of Congo is progressing rapidly, with 60 kilometers of the gravel base completed, significantly improving local transportation and alleviating traffic congestion in Kinshasa [1][2]. Group 1: Project Overview - The Kinshasa Ring Road project, initiated on June 22, 2024, is a key infrastructure project funded by China and aims to connect the city center with surrounding villages, featuring multiple bridges and drainage works [2][3]. - The project is expected to reduce traffic congestion by 30% in Kinshasa, which has a population exceeding 17 million, and currently faces severe traffic issues on the N1 highway [2][3]. Group 2: Economic and Social Impact - The project is anticipated to enhance local economic development by improving transportation efficiency and reducing logistics costs, which previously led to significant delays and losses for local businesses [2][3]. - Over 3,000 local jobs have been created through the project, with training provided for over 400 local technicians in various trades, thereby building local capacity [7][8]. Group 3: Construction Quality and Challenges - The construction team has adapted techniques to local conditions, including developing a high-temperature asphalt formula and implementing innovative construction methods to address geological challenges [6][7]. - The project showcases the technical capabilities and commitment of Chinese enterprises in delivering high-quality infrastructure [7].

Core Viewpoint - The completion of the Left Bank Avenue in Wuhan significantly enhances regional connectivity and transportation efficiency, serving as a vital infrastructure project for urban development and ecological protection [3][7]. Group 1: Project Overview - The Left Bank Avenue, a key project funded by China Communications Construction Company, spans 5.578 kilometers and connects various major roads, facilitating regional development [3]. - This project is part of Wuhan's major city-level initiatives, aimed at alleviating traffic pressure and enhancing the efficiency of transportation for students and researchers at Huazhong University of Science and Technology [3][4]. Group 2: Construction Innovations - The construction includes urban main roads, two overpass bridges, a pedestrian bridge, and various supporting facilities such as drainage, lighting, and smart traffic systems [4]. - The project team employs innovative construction methods, including segmented construction and prefabrication, to meet tight deadlines while ensuring safety, ecology, quality, and efficiency [4][7]. Group 3: Environmental Considerations - The project integrates ecological protection measures, utilizing high-performance materials like polymer PVC composite templates made from plant fibers to reduce wood consumption [5][6]. - Techniques such as "in-situ solidification" of mud generated during pile foundation work are implemented to convert waste into usable planting soil, thus preventing pollution of the Yangtze River [6]. Group 4: Quality Control and Recognition - The project adopts a meticulous management approach, implementing a "sample first" principle to ensure quality at every construction stage, which has earned it multiple awards for safety and civilized construction [7]. - The overall construction timeline was significantly shortened, with the main line opening for trial operation in August and official completion in November, ahead of schedule by approximately six months [7].

Core Viewpoint - The completion of the Left Bank Avenue in Wuhan significantly enhances regional transportation efficiency and contributes to urban development, serving as a vital infrastructure project for the area [2][7]. Group 1: Project Overview - The Left Bank Avenue, constructed by China Communications Construction Company (CCCC), spans 5.578 kilometers and connects key routes, injecting vitality into regional development [2]. - This project is a major initiative for Wuhan, alleviating traffic pressure and serving as an "efficiency corridor" for Huazhong University of Science and Technology [2]. Group 2: Construction Innovations - The project incorporates advanced construction techniques, including a 24-hour bridge health monitoring system that detects stress, displacement, and vibration, allowing for proactive maintenance [3]. - Innovative materials, such as high molecular PVC composite templates made from plant fibers, are used to enhance environmental sustainability while maintaining quality [4]. Group 3: Environmental Considerations - The construction team emphasizes ecological protection, implementing measures like a runoff diversion system to prevent pollution of the Yangtze River [4]. - Techniques such as "mud solidification" are employed to recycle waste materials, aligning with circular economy principles [4]. Group 4: Quality Control - The project adopts a meticulous management approach, implementing a "sample first" principle to ensure quality at every construction stage, which has earned it prestigious local awards [5]. Group 5: Impact on Transportation - The main line of the Left Bank Avenue is set to reduce travel time from Junshan New City to Hankou to under 30 minutes, significantly improving transportation efficiency [7]. - The project also includes green spaces and pedestrian pathways, enhancing the urban landscape and providing recreational areas for residents [7].

Core Viewpoint - The construction of the 312 National Road Wuxi Fengxiang Road to Guangshi Road section, undertaken by China Railway 11th Bureau, is progressing steadily with a focus on timely completion of key engineering projects [2][4][6][8][10] Group 1 - The construction site is busy with the installation of prefabricated beams and box beams [2][4][6] - Workers are actively working to seize the construction schedule and ensure orderly operations [8][10] - The project is highlighted as a key engineering initiative, emphasizing its importance in infrastructure development [2][4][6]

Group 1 - The core viewpoint of the article highlights the recent infrastructure improvements in Shangcheng District, focusing on road safety, durability, and the incorporation of cultural elements into public spaces [2][6] Group 2 - The use of EA epoxy asphalt technology for upgrading the road surface at the Fuxing Interchange, particularly at the Sanlangmiao bus station, enhances the load-bearing capacity and extends the lifespan of the pavement [3] - The city management department has systematically upgraded the accessibility features of sidewalks, addressing the needs of special groups by repairing damaged tiles and ensuring smooth pathways for the visually impaired [4][5] Group 3 - The Tian Dong Bridge has undergone significant renovations, combining safety enhancements with cultural aesthetics, including the installation of guardrails with traditional design elements [6] - The city has made substantial progress in accessibility construction, with over 90% coverage of curb ramps on 5,069 kilometers of urban roads, and the addition of 463 new vertical elevators and platforms for the disabled and elderly [5]

Core Viewpoint - Longjian Co., Ltd. (龙建股份) and its wholly-owned subsidiary Heilongjiang Beilong Transportation Engineering Co., Ltd. have been awarded a contract for the reconstruction and expansion of the Jingmo Highway from Gagadaqi to Walagan, with a bid price of 441 million yuan [1] Group 1 - The joint venture has been confirmed as the winning bidder for the A3 section of the project [1] - The project is expected to contribute approximately 2.41% to the company's audited revenue for 2024 [1]

Group 1 - The company, along with its wholly-owned subsidiary Heilongjiang Beilong Transportation Engineering Co., Ltd., has been awarded the contract for the reconstruction and expansion of the Jingmo Highway from Gagadaqi to Walagan section, with a bid price of 441 million yuan [1] - The project is located in the Daxing'anling region of Heilongjiang Province and has a planned construction period of 730 calendar days, with a defect liability period of 24 months [1] - The total length of the project is 55.73 kilometers, and the construction work mainly includes subgrade, pavement, bridges and culverts, and traffic safety facilities [1] Group 2 - The company is responsible for 98% of the total engineering volume, which includes subgrade, pavement, bridges, and auxiliary building construction, while Beilong Company is responsible for 2% related to traffic safety and smart traffic facilities [1] - The construction tasks undertaken by the company and Beilong Company are expected to account for approximately 2.41% of the company's audited operating income for 2024 [1]