Recently, the China Association of Construction Enterprise Management announced the selection results of the "2024 Geotechnical Engineering Technology Innovation Achievements," and the "Reinforcement Technology of Grouted Steel Pipe Piles for Deep and Thick Red Bed Backfill Foundation" submitted by Chengdu Engineering Corporation Limited won the First Prize for Geotechnical Engineering Technology Innovation.

This technological achievement fully takes into account the layered differences in permeability of red bed backfill soil. Its multi-parameter-controlled layered and zoned grouting reinforcement technology can effectively reduce the grouting volume, conforms to the concept of green geotechnical development, and delivers outstanding economic and social benefits.