锚杆 Anchor/ Rock bolt

▇ 概述 Summary

  锚杆是当代煤矿当中巷道支护的最基本的组成部分，它将巷道的围岩粘结在一起，使围岩自身支护自身。现在锚杆不仅用于矿山，还可作为深入地层的受拉构件，它一端与工程构筑物连接，另一端深入地层中。整根锚杆分为自由段和锚固段，自由段是指将锚杆尾部（托盘+球垫+螺母）的拉力传至锚固体的区域，其功能是对锚杆施加预应力。
  我公司锚杆产品强度高，结构合理，预紧力大，能够自动调整受力方向，增大对围岩的约束力，能实现机械化快速安装。可端锚、加长锚和全锚，主要用于高地压矿井大变形巷道的高强度支护，同时也可用于铁路、水电等各类工程的高强度，永久性巷道支护。

  Bolt is the most basic component of roadway support in coal mines. It binds the surrounding rock of roadway together and makes the surrounding rock support itself. Now the bolt is not only used in the mine, but also can be used as a tensile member deep into the ground, one end is connected to the engineering structure, and the other end is deep into the ground. The whole bolt is divided into free section and anchoring section. The free section is to transfer the tension of the bolt tail (tray + ball pad + nut) to the anchorage solid area, and its function is to apply prestress to the bolt.
  Our company's rock bolt have high strength, reasonable structure and large pre-tightening force, which can automatically adjust the direction of force, increase the binding force on surrounding rock, and achieve mechanical installation rapidly.End anchor, lengthened anchor and full anchor are mainly used for high strength support of large deformation roadway in high pressure mine, and also for high strength and permanent roadway support of railway, hydropower and other projects.

▇ 锚杆规格型号 Specifications for the rock bolt

  本产品选用国家大型企业生产的HRB335、HRB400、HRB500螺纹钢，材质性能稳定，产品安全可靠。

  BoThis product selects HRB335, HRB400, and HRB500 rebar produced by large national enterprises, with stable material performance and safe and reliable products.

▇ 锚杆配件分类 Bolt accessories classification

• 杆体端部形状：螺纹钢分为平头和45°斜头
• The end rod body shape: Rebar is divided into flat head and 45 degree inclined head.
  

• 螺母形状 Nut shape：

          普通标准螺母 Plain standard nut

          高强扭矩螺母 High torque nut

          等强型特种螺母 Special nut of equal strength type

• 垫板形状 Plate shape：

          150×150×8碟形 150×150×8 Dish shape

          150×150×10碟形 150×150×10 Dish shape

          150×150×12碟形 150×150×12 Dish shape

          150×130×8 W型 150×130×8 W shape

• 垫片形状 Gasket shape：

          平垫圈、半球垫圈 flat washer, hemispheric washer

▇ 锚杆技术参数 Technical parameters for rock bolt

▇ 锚杆生产线 Rock bolt production line