PSi was engaged to carry out and supply complete shaft sinking and tunnelling service to sink a shaft 20 meters deep by 6 meters diameter and a 30 meter tunnel right in the heart of Blue mountains by way of drill & break the hard basalt rock using our non-explosive cardox and the waste was kibbled out of the shaft by crane and transported away the project was completed within budget without any incidents lost time injuries under environmental and vibration challenges due to the proximity of houses within 5 meters of the shafts and roadways.
