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为了准确反映锚杆预紧力施加是否合格,及时预警锚杆破断危险,进一步提高锚杆施工质量,研究开发了一种新型锚杆支护配件-锚杆紧固力状态指示器,该指示器主要具备2种功能,即量化锚杆预紧力,施加预紧力合格后,指示器绿色指示灯亮,提示锚杆预紧力达到设计的量值;预警锚杆杆体拉断破坏,杆体受拉将要达到其极限抗拉强度时,指示器红色指示灯亮,警示锚杆有破断危险。
In order to accurately reflect the preload of the bolt is qualified, timely warning of the risk of bolt breakage, and further improve the quality of the construction of the anchor, research and development of a new bolt support accessories - bolt fastening force status indicator, the indicator Mainly has 2 kinds of functions, that is to quantify the bolt preload, pre-tightening force is applied, the indicator green indicator light, suggesting that the bolt pre-tightening force to achieve the design value; early warning anchor rod pull off the destruction of the body tension When it is about to reach its ultimate tensile strength, the indicator red light is on, warning that the bolt is broken.