The practices showed that the suspension arch method of drifting is an effective way of drifting in unstable strata.
实践证明，悬拱法是不稳定岩层中平巷掘进的有效施工方法。
Based on the theory of rock mechanics and the principle of drifting, the author proposed the suspension arch method of drifting in unstable strata.
本文在总结先拱后墙平巷掘进经验的基础上，根据岩石力学理论和平巷掘进原理，提出了平巷掘进的悬拱法。
Combining the construction practice, the article introduces the construction method of arch box suspension hanging.
结合工程实例，介绍拱箱悬索吊装施工方法。
Combining the construction practice, the article introduces the construction method of arch box suspension hanging.
结合工程实例，介绍拱箱悬索吊装施工方法。
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