Key construction technique mainly includes maintaining cavern stability, protecting surrounding rock integrity and guaranteeing concrete backfill quality.

  • 关键施工技术主要体现于维护施工期洞室稳定,保护围岩完整性和保证结构混凝土回填质量三方面。

  • 互联网摘选 2025-01-20 11:49:38

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