Sinorock self drilling anchor is related to the quality of construction

Self drilling anchor combines drilling, grouting and anchoring together, with functions of security, time-saving and high-efficiency. During tunnel construction, it can support slope and be used when TBM is excavating to avoid collapse and deformation. The most important to guarantee safety of workers and successful completion of projects.
The depth of self drilling anchor bolt is related to the quality of project. During the
process of grouting, actual elevation of concrete surface should be often measured, lifting height should be calculated, relative location between anchor bolt and concrete surface should be controlled. Generally, the depth of self drilling bolt should be controlled in 2~6 meters, otherwise, different forms’ quality problems will appear, which will then influence projects’ integral quality.

In addition, during the construction of cast-in place pile, to control pile head quality, the last grouting amount should be controlled well. Pile head should not be made low and exposed concrete should reach designed intensity value.

In actual operation, improper control of grouting amount, impurity concrete and hole cleaning not thoroughly all will have influence on quality of construction.