锚杆、锚索拉拔力的测试校验

Test and verification of pulling force of anchor rod and cable

在煤矿巷道支护中,大多采用锚杆、锚索进行支护,使得巷道围岩与稳定岩层有效地结合在一起而形成悬吊、组合梁结构,起到减小跨度、加固围岩的效果,进而达到支护的目的。但是在实际工作中难免会出现锚杆、锚索失效的时候,这就要求工作人员及时进行拉拔力实验检查,确保支护质量。通过阐述锚杆(索)支护工艺,介绍了使用LDZ-200型锚杆锚索拉拔计对锚杆(索)进行拉拔力测试校验方法、锚杆(索)锚固合格性的神东企业标准及安全注意事项。

Most of the coal mine roadways are supported by bolts and cables,which make the roof strata of the roadways form suspension structure or composite beam structure,reduce the span,and strengthen the surrounding rock,so as to achieve the purpose of roadway support.In the coal mine roadway support,in order to avoid bolt and cable failure,it is necessary to check the pulling force of bolt and cable in time to ensure the quality of support.The paper describes the bolt(cable)support technology,introduces the test and verification method of the pull force of the bolt(cable)by using LDZ-200 type bolt puller,the enterprise standard of the bolt(cable)support,and safety precautions in bolt(cable)support.