Self drilling rock bolt is a rod-shaped body anchored in the rock body. The use of self drilling rock bolts to support the roadway is to drill holes in the surrounding rock after tunneling, and then install the self drilling rock bolts in the bolt holes to artificially strengthen the surrounding rock of the roadway.

The wide application of self drilling rock bolts can play a solid role in strengthening the surrounding rock strength of the roadway. Its support cost is low relatively, the roadway has a fast speed and high efficiency, and it can also improve the efficiency of the mine roadway. A main form of support represents the main development direction of coal mine tunnel support technology.

Self-drilling rock bolts have many advantages: Saving pit wood and steel, reducing support costs, small tunneling section; Small deformation of tunnel, low maintenance cost, safe and light, can reduce physical labor and reduce ventilation resistance; Roadway construction and speeding up the digging speed, wide range of use, strong adaptability, reduced transportation volume, is conducive to the transportation and promotion of the mine.

However, self drilling rock bolts cannot prevent the weathering of surrounding rock and cannot completely prevent the spalling of the cracked rock between the anchors and the anchors. Therefore, the self drilling rock bolts cooperate with other supporting measures, such as metal mesh, shotcrete or shotcrete such joint use will achieve better support effect.

In daily applications, many mine managers require employees to drill self drilling rock bolt support, but they do not know the principle of self drilling rock bolt support. Therefore, it is necessary to strengthen the training on the principle of self drilling rock bolt support, so that the self drilling rock bolt can play a better supporting effect.

Email: zxminesupport@zxsteelgroup.com

Whatsapp: +86 18236766038