This paper introduces the application of the backfill grouting technique to block up the branch tunnel, the corresponding technology, technique request and result evaluation are given.
文章介绍了回填灌浆技术在支洞封堵中的应用，支洞回填灌浆的施工工艺、技术要求以及效果评价。
This method consists of the following procedures: backfill, consolidation grouting, reinforcing by the pipe and strut method, controlled blasting and anchor bars.
该工法包括回填和固结灌浆、管棚加固、控制爆破和喷锚等工序。
This method consists of the following procedures: backfill, consolidation grouting, reinforcing by the pipe and strut method, controlled blasting and anchor bars.
该工法包括回填和固结灌浆、管棚加固、控制爆破和喷锚等工序。
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