GFRP Pipe Injection System

The face stabilization auxiliary method for tunneling is a practical choice by tunneling engineers to stabilize the excavation face in the case of extremely poor geological conditions. For higher strength requirements and cuttability consideration, the GFRP rock bolt or anchor is the general choice. However, when a longer distance face anchor and ground injection treatment behind the excavation face is required, the GFRP pipe injection system becomes a popular alternative owing to the following characteristics: 1. Simultaneous installation is possible with a special drill system; 2. Injection work can be divided into three sections using simple parker design to achieve better consolidation effect.