... circular bubble 圆水准器 circular closed support 环形支架 circular electrode 盘状电极 ...
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介绍了该矿采用的高强锚网索一次支护、长环形支架二次支护以及壁后注浆的联合支护技术。
This paper introduced a combined supporting technology, including first supporting, high-strength bolt-net-cable supporting, second supporting, long ring support and grouting behind support.
综合比较来看，封闭式支架要优于不封闭支架；马蹄形或方环形支架要比半圆拱等支护形式好。
Compared comprehensively, enclosed supports are better than non-enclosed supports; supports of square annular shape or "u" shape are better than supports of semicircle arch.
应用数值模拟的结论，在现场进行了方环形支架与半圆拱支架的对比试验，取得了较好的效果。
When applied in the contrast experiment to square annular supports and semicircle arch supports, the conclusion of numerical simulation is coherent with the result of the experiment.
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