Core Insights - The project led by Professor Wu Zhijian from Nanjing University of Technology has won the first prize of the 2025 China Highway Society Science and Technology Progress Award for its innovative low-carbon reinforcement and intelligent monitoring technology for soft soil foundation engineering [1] Group 1: Project Overview - The project addresses challenges in low-carbon reinforcement design technology for soft soil foundations, including theoretical deficiencies, lack of green disposal technologies, and insufficient intelligent monitoring platforms [1] - After 15 years of research, the team established theories, methods, and construction processes for low-carbon reinforcement in soft soil areas, applying these technologies to 26 major projects in China, generating nearly 6.5 billion yuan in added value and over 330 million yuan in profit [1] Group 2: Innovative Techniques - The team developed a new method using industrial and construction waste as raw materials to create a green gel material, which reduces carbon emissions by 92% compared to traditional cement production, and lowers costs by over 25% [3] - The new gel material acts as a high-performance "eco-friendly glue" for solidifying soft soil, reducing solidification costs to 40 yuan per cubic meter, which is 20%-40% cheaper than traditional methods and saves over 70% in transportation costs [3] Group 3: Material Advancements - The project introduced lightweight solidified soil piles made from gel materials and foaming agents, which significantly reduce additional stress on soft soil foundations while improving vertical bearing capacity by 38.3% and reducing settlement by 23% [4] - The full solid waste negative carbon composite pile shows a 70% improvement in horizontal bearing capacity compared to traditional piles, enhancing the structural integrity of soft soil foundations [4] Group 4: Intelligent Monitoring - The project features advanced monitoring technology that allows real-time assessment of foundation compaction and pile quality, achieving detection precision of 5 mm, which is ten times better than traditional methods [6] - A multifunctional intelligent monitoring platform provides real-time monitoring of reinforcement effects and construction risks, with a response time for alerts improved to 30 seconds, doubling the speed of traditional systems [6] Group 5: Environmental Impact - The technology has significant social and ecological benefits, transforming over 3.6 million cubic meters of plastic engineering waste into usable materials for projects like the Ningbo Metro, avoiding pollution from off-site disposal [7] - The project aims to promote its technology in soft soil concentrated areas such as the Pearl River Delta and Southeast coastal regions, facilitating more transportation engineering projects towards "low-carbon + intelligent" construction [7]

Core Viewpoint - The project led by Professor Wu Zhijian from Nanjing University of Technology addresses the challenges of constructing roads and railways in soft soil areas, providing low-carbon and intelligent solutions that transform industrial waste into sustainable roadbed materials [1][9]. Group 1: Innovation in Materials - The project utilizes industrial solid waste such as smelting slag and fly ash as raw materials, creating a new green gel material that reduces carbon emissions by 92% compared to traditional cement production, while also lowering costs by over 25% [2][3]. - The new technology allows for the direct transformation of soft soil into qualified roadbed material, significantly reducing transportation costs and environmental issues associated with traditional methods [2]. Group 2: Advanced Equipment and Techniques - The team developed high-efficiency equipment capable of processing 400 cubic meters per hour, which is more than three times the capacity of traditional equipment, leading to a cost reduction of 20%-40% for soft soil solidification [3]. - Innovations include lightweight solidified soil that reduces additional stress by 50% while increasing vertical bearing capacity by 38.3%, thus minimizing settlement issues [3]. Group 3: Intelligent Monitoring Systems - The project features a smart monitoring system that provides real-time assessments of roadbed integrity, significantly improving detection accuracy and efficiency compared to traditional methods [6]. - The system can issue alerts within 30 seconds of detecting anomalies, enhancing safety during construction and allowing for real-time carbon reduction assessments [6]. Group 4: Economic and Environmental Impact - The technology has been applied in 26 major national projects, generating nearly 6.5 billion yuan in new output value and over 330 million yuan in profit [7]. - The project has successfully converted over 3.6 million cubic meters of construction waste into usable materials, avoiding pollution from landfill and achieving cost savings of over 70% in road construction [7]. Group 5: Future Prospects - The technology is recognized as internationally leading and is expected to be promoted in other soft soil regions, contributing to the dual carbon goals in transportation infrastructure [9].