Recently, the full set of compaction equipment for impact rollers manufactured by the Engineering Machinery Plant of the 20th Bureau Group was used for the first time in the subgrade construction of the test section of the Chongqing Wushao High-speed Railway. This innovative application has delivered impressive results, proving to be a game-changer in the field of roadbed compaction.
After the roadbed was initially compacted using a vibratory roller to meet the required density standards, the impact roller was introduced for additional reinforcement and compaction. The results were remarkable—substantial settlement of up to 8 cm was observed, indicating a clear improvement in the compaction process. More importantly, the uniformity and overall strength of the subgrade were significantly enhanced, demonstrating the effectiveness of this combined approach.
This successful trial not only highlights the efficiency of the impact roller technology but also sets a new benchmark for subgrade construction in high-speed railway projects. It offers a reliable solution for achieving higher compaction levels, reducing long-term maintenance costs, and ensuring greater stability of the track structure. With these positive outcomes, the use of impact rollers is expected to gain more widespread acceptance in future infrastructure projects.
The implementation of this advanced compaction system marks a significant step forward in modernizing railway construction techniques, especially in challenging terrain where traditional methods may fall short. The collaboration between the 20th Bureau Group and local engineering teams has proven that innovation, when applied correctly, can lead to substantial improvements in both quality and efficiency.
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