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系统地介绍了圆梁山隧道PDK354+255～+275溶洞段的地质超前预测预报、超前注浆加固及支护技术、注浆效果的检查评定及施工过程。
This paper systematically introduces the geological prediction and prediction of PDK354 + 255 ~ + 275 cave sections in Yuanliangshan Tunnel, the advanced grouting reinforcement and support technology, the inspection and assessment of the grouting effect and the construction process.