为了加固松动的围岩，可通过用中空注浆锚杆对其进行支护和加固，达到改良和稳固其结构的目的。
To strengthen loose surrounding rock, we can support and strengthen it by hollow grouting anchor so as to modify and stabilize its structure.
阐述了中空锚杆作为地下工程抗浮措施的设计、施工和试验的方法。
In this article, authors introduce the method of hollow anchor design, construction and experiment in underground engineering anti-floating.
为了提高凿岩钎杆用中空钢的使用寿命，设计了奇数边截面形状的中空钢。
In order to enhance the service hfe of hollow steel for rock drill stem, the odd number side section shape hollow steel has been designed.
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