concrete anchor bolt的意思|示意

Although it has success development different producibility bolt in last few year, concrete spraying research have not the obvious break through in anchor spray support.

虽然近几年来已成功研制了各种可伸长锚杆，但锚喷支护中混凝土喷层研究仍未有明显突破。

The failure forms of the anchor can generally be divided into anchor bolt or planting steel failure, parent mental concrete failure and anchor bolt of reinforcement-planting pulling failure.

介绍了国内外对锚栓抗拉性能的研究成果，锚栓受拉破坏模式有五种形式，其中混凝土锥体破坏是最常见的。