Shotcrete Machine Bolt Safety Precautions

Today shotcrete machine manufacturers will tell you shotcrete machine bolt safety precautions:
1, safety measures:
① strictly asked to help knock the top, each staff member first check roof workplace safety bracket between two and found to be safe suffering implicit in time, be carried out to confirm the safety operations. Winch Road in bolting job, non winch to pull the car road, pedestrians should quickly pass, and attention to safety.
② When construction workers must have the mayor and cadres on duty at the scene command, otherwise prohibited work, but also a serious study of the safety of construction workers organize technical measures, known practices and project quality requirements, to achieve safety.
③ before construction must maintain the normal operation of the fan, to ensure proper ventilation tunnel, is strictly prohibited without wind operations, but before drilling construction, must be marked with a temporary roof support bracket. Need to take the platform when the roadway high shelf, we must take a steady, reliable, drilling, job security anchor person to cooperate with each other and make a self-protection, mutual security.
2, anchor construction quality and technical measures:
① When installing anchors, pipe extrusion with tamping tamping drug volume, to force uniform, force should be large. Depending on roof strata stability, decide whether hanging metal netting and U-channel, first with tamping tube measuring eye bolt orientation before installation and check whether there is ballast block the hole, while the wind filled with high-pressure wash drilling eye.
② bolt installation, installation Luo mother, washers and drug volume, drug volume outside the gasket to be loose, and check whether the two Romanian mother rotatable.
③ After installation bolt 30 minutes, to promptly install pallet and tighten the nut, so that there is a prestressed anchor role, and bolt anchoring force to reach more than 30KN.