Field experience and similar material simulation indicate that there is the bending catastrophe phenomenon of anchor roof beam in bolting roadway sometimes.
现场经验及模型实验表明，煤巷锚杆支护中有时出现锚固体的弯曲突变失稳现象。
Field experience and similar material simulation indicate that there is the bending catastrophe phenomenon of anchor roof beam in bolting roadway sometimes.
现场经验及模型实验表明，煤巷锚杆支护中有时出现锚固体的弯曲突变失稳现象。
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