Abstract: With excellent soil-locking performance and load distribution capacity, high-strength plastic geocells play a pivotal supporting role in geotechnical reinforcement, slope protection and other engineering projects, delivering outstanding engineering efficiency. In 2024, the series of national standards for plastic geocells (GB/T 19274-2024 and GB/T 44569.1-2024), which our company participated in drafting and compiling, were officially promulgated and implemented. This standard iteration is closely aligned with the industry’s technological upgrading and high-end engineering demands, laying an authoritative and standardized foundation for the production, inspection and promotion of high-strength micro-pile welded plastic geocells (referred to as high-strength plastic geocells for short). The core changes brought by this standard upgrading are as follows:
Compared with the previous version, the new national standard comprehensively optimizes the classification system of plastic geocell products with more detailed and targeted classification dimensions. Two key structural forms, namely tensile strips and micro-pile welded joints, are newly added, which accurately align with the R&D direction of high-strength plastic geocell products.
Along with the release of the new national standard for plastic geocells, the supporting national standard GB/T 44569.1-2024 Geosynthetics—Determination of Internal Joint Strength—Part 1: Geocells was implemented simultaneously. The joint testing system has been fully upgraded, with key testing methods deeply aligned with ISO international standards, significantly improving the accuracy and authority of detection.
The micro-pile welded joints feature stable and reliable connection strength as well as higher load distribution efficiency, which can give full play to the three-dimensional reinforcement effect of high-strength geocells and ensure the long-term stability of engineering projects.
The previous standard only classified products by material, which failed to directly reflect the differences in core product performance. The new national standard innovatively adopts a classification model based on joint strength grades, focusing on the core of product performance. With a clearer and more accurate classification logic, it enables more direct and efficient engineering selection, and accurately matches engineering scenarios with different load-bearing requirements. Relying on the advantages of core technology R&D, our company’s high-strength plastic geocells have joint strength far exceeding the high-grade requirements of the new national standard, maintaining a leading position in the industry.
In full compliance with the core requirements of the new national standard, high-strength plastic geocells will continue to provide efficient and reliable reinforcement solutions for various engineering projects with their superior structural performance and stable quality, leading the high-quality development of the industry.
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