Good News: Four of the company’s scientific and technological achievements have been awarded the 2021 Guizhou Province Science and Technology Progress Award.
Release time:
2022-06-13 14:33
Source:
On May 27, 2022, the Guizhou Province Science and Technology Innovation and Science and Technology Awards Conference was held in Guiyang. Leading officials from the provincial Party committee and provincial government attended the conference. The meeting was chaired by Li Bingjun, Deputy Secretary of the Provincial Party Committee and Governor of the province, and Chen Yiqin, Secretary of the Provincial Party Committee and Director of the Standing Committee of the Provincial People’s Congress, delivered an important speech. During the conference, the "Decision of the Provincial People’s Government on the 2021 Guizhou Province Science and Technology Awards" was also announced. Four projects led by and involving our company were honored with the 2021 Guizhou Province Science and Technology Progress Award.
List of Awarded Projects for the 2021 Guizhou Province Science and Technology Awards |
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Serial number |
Project Name |
Primary completing unit |
Prize category |
Ranking |
1 |
Key Technologies for Preventing and Controlling Icing on Asphalt Pavements in the Humid Mountainous Regions of Yunnan, Guizhou, and Sichuan |
Guizhou Provincial Transportation Planning, Survey & Design Research Institute Co., Ltd., Harbin Institute of Technology, Scientific Research Institute of the Ministry of Transport, Wuhan University of Technology, Guizhou Provincial Highway Administration |
Provincial Science and Technology Progress Award |
Second Prize |
2 |
Key Technologies for the Construction of Asymmetric Hybrid Steel-Concrete Composite Cable-Stayed Bridges in Mountainous Areas |
Guizhou Provincial Transportation Planning, Survey and Design Research Institute Co., Ltd., Guizhou Expressway Group Co., Ltd., Central South University, Guangxi Road & Bridge Engineering Group Co., Ltd. |
Provincial Science and Technology Progress Award |
Second Prize |
3 |
Key Technologies for Operational Risk Prevention and Control on Long, Steep Grade Sections of Mountainous Expressways |
Guizhou Provincial Transportation Planning, Survey & Design Institute Co., Ltd., Guizhou Expressway Group Co., Ltd., Tongji University |
Provincial Science and Technology Progress Award |
Third Prize |
4 |
Research and Application of Highways' Retroreflective Systems |
Guizhou Zhipu Expressway Construction Co., Ltd., Guizhou Provincial Institute of Transportation Planning, Survey and Design Co., Ltd., Wuhan University of Technology |
Provincial Science and Technology Progress Award |
Third Prize |
Project Introduction
I. Key Technologies for Preventing and Controlling Icing on Asphalt Pavements in the Humid Mountainous Regions of Yunnan, Guizhou, and Sichuan
The project is guided by the technical principle of developing technologies for preventing and controlling ice formation on asphalt pavements in the humid mountainous regions of Yunnan, Guizhou, and Sichuan, thereby enhancing the pavements’ resistance to ice accumulation. It focuses on breakthroughs in key technologies such as the mechanisms underlying ice formation on asphalt pavements in these humid mountainous areas, proactive ice-control technologies for asphalt pavements throughout their entire lifecycle, and rapid detection and assessment techniques for icy road surfaces. These innovations will provide new technologies and approaches to address winter pavement operation challenges in the Yunnan-Guizhou-Sichuan region. The research findings from this project have been applied to more than 80 projects across 14 provinces and cities in China, significantly improving road service capabilities. This has effectively ensured safe winter operations in the humid mountainous regions of Yunnan, Guizhou, and Sichuan, as well as in other snow- and ice-affected areas across China, greatly reducing accident rates and enhancing the efficiency of ice prevention and control measures. The project has yielded substantial social, ecological, and economic benefits.
II. Key Technologies for the Construction of Asymmetric Hybrid Steel-Concrete Composite Cable-Stayed Bridges in Mountainous Areas
The main bridge of the Hongshui River Supermajor Bridge is an asymmetric hybrid composite cable-stayed bridge with a span arrangement of (213 + 508 + 185) meters. Both the span layout and the structural form of the main girder are asymmetrical. The construction methods for the main girder differ between the Guangxi side and the Guizhou side. The structure features complex stress conditions, high technological content, and significant construction challenges, making it one of the most critical and pivotal projects on the Huiluo Railway in Guizhou Province. In response to the challenging construction conditions faced by this project—the narrow site, the inability to transport components via waterways, and the difficulties in constructing access roads—systematic research has been conducted on design theories, scientific experiments, and engineering applications related to the bridge’s structural system, structural details, construction methods, and construction equipment. For the first time in long-span cable-stayed bridges, an asymmetric hybrid composite beam structure has been adopted, effectively addressing the structural layout challenges posed by the constrained mountainous terrain. Combined with model tests, the multi-level load-transfer paths and their respective proportions within the steel-concrete connection zones have been clearly defined. As a result, a complete set of construction technologies for large-span hybrid-beam cable-stayed bridges in mountainous regions has been developed.
III. Key Technologies for Risk Prevention and Control in Long, Steep Grade Sections of Mountainous Expressways
Relying on a series of science and technology projects sponsored by the Guizhou Provincial Department of Transport, this project conducted research into key technologies for the prevention and control of operational risks on long, steep-gradient sections of expressways in mountainous areas, thereby establishing a comprehensive safety assurance system for traffic operations on such sections in Guizhou Province. The project developed a vehicle operational risk assessment methodology specifically tailored to long, steep-gradient sections of expressways in mountainous regions; refined and improved the technical system for safe design of these sections; and designed and developed a system and equipment for the prevention and control of operational risks on these sections. Furthermore, an intelligent protection system for freight vehicles that aligns with Guizhou’s transportation characteristics was established, including the invention of an intelligent safety early-warning system for freight vehicles operating on long, steep-gradient sections and an emergency evasive lane monitoring system. The research findings have driven the industrial upgrading of equipment used to ensure the safe operation of highway freight vehicles.
IV. Research and Application of Retroreflective Systems for Highway Tunnels
Supported by national and provincial-level science and technology projects, this project focuses on technologies for improving the lighting environment in highway tunnels. From the perspective of preventing traffic accidents and taking into account the differentiated driving needs in highway tunnels, it has refined a theoretical framework for optimizing the lighting environment in road tunnels based on traffic safety considerations. The project proposes a comprehensive evaluation system and methodology for highway tunnel lighting environments, incorporating spatial right-of-way, driver factors, driving tasks, differentiation, and rhythmicity. Furthermore, it offers specific improvement approaches for retroreflective systems in highway tunnels, tailored to tunnels of varying lengths, different lighting schedules, and diverse geometric configurations. By balancing economic efficiency with energy conservation, this approach effectively enhances the driving environment within tunnels while ensuring the harmonious integration of tunnel safety and energy efficiency.
Winning awards for our research achievements is recognition of the company’s capability in scientific and technological innovation. We will take this as an opportunity to continuously enhance our independent innovation capacity and rely on technological innovation to support the company’s pursuit of high-quality development.
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