锚杆是当代煤矿当中巷道支护的最基本的组成部分，他将巷道的围岩加固在一起，使围岩自身支护自身。现在锚杆不仅用于矿山，也用于工程技术中，对边坡，隧道，坝体进行主体加固。锚杆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，自由段是指将锚杆头处的拉力传至锚固体的区域，其功能是对锚杆施加预应力。
作用原理：锚杆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，自由段是指将锚杆头处的拉力传至锚固体的区域，其功能是对锚杆施加预应力；锚固段是指水泥浆体将预应力筋与土层粘结的区域，其功能是将锚固体与土层的粘结摩擦作用增大，增加锚固体的承压作用，将自由段的拉力传至土体深处 [1] 。
Xintai Runxin Mine Support Co., Ltd. is located in Shandong Province, at the foot of Mount Tai, the national garden city-Xintai High-tech Development Zone, Beijing-Shanghai, Laixin, Boxu Expressway, and the magnetic railway is bypassing the factory. The communication is developed and the transportation is convenient.
The company is a professional manufacturer, processing and sales of underground bolting support materials for mines. The company's products are left-handed without vertical rib threaded steel resin anchors and right-handed full-threaded and other strong-threaded steel resin anchors. It is a broad-based support material approved and promoted by the State Bureau of Coal and Coal Safety Supervision. Safe and reliable, high quality, low consumption, easy to use, etc., has been widely used in coal mines, tunnels, slope protection and surrounding rock projects. The company has 56 employees, 19 professional and technical personnel, covers an area of 6,800 square meters, with an annual output of more than 2 million sets of various anchors. The products are sold to major mining groups and small and medium-sized coal mines in Shandong, Shaanxi, Shanxi, Inner Mongolia, Guizhou, Henan, Anhui, Xinjiang and Northeast China.
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