In order to improve the stability of roadway itself, avoided the surrounding rock deformation and the situation of the collapsing, after
drifting in the roadway drivage, which needs to take measures for supporting.And with the development of technology and practice, the self
drilling rock bolt support technology has become the main measures for roadway support .So it plays a important role,the quality control
is important.
Quality control is a part of quality management. It aims to meet quality requirement and then gain economic benefit. The quality control

in supporting projects includes pre-control, in-control and after-control, which should be under the guidance of quality principles and

construction schemes.
Supporting projects are the very important link during the whole construction. They belong to security technical measures and they have

good effect on anti-collapse. Different locations should be designed according to different geological conditions, structures, sizes and

methods. There are two methods for supporting: framework support and rock bolt support.