Forward support bolt combined with roop rock by bolting can play a roll of combined beam, which can prevent roof rock caving immediately after explosion.
超前支护锚杆锚固后与顶板岩石构成一体，这样使超前锚杆形成组合梁作用，放炮后，能够阻止顶板岩石冒落。
The numerical model of roof bolting and rock mass collaboration was based on Hoek Brown's strength criterion.
基于虎克-布朗强度准则给出了岩体及顶板锚固的数值模型。
Roof falling of rock bolting supported tunnel is usually paroxysmal in a big area, so safety monitoring is of great importance.
锚杆支护巷道顶板冒落具有突发性和冒落面积大的特点，安全监测非常必要。
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