As the core equipment for pile foundation construction, rotary drilling rigs pose risks of overturning and collapse during operation. These risks not only may cause equipment damage but also directly threaten the life safety of construction personnel. Combining the risk characteristics obser Read More

     Drill jamming and hole collapse are major risks in rotary drilling rig construction. For drill jamming, handle based on causes: inject mud and reverse at low speed for hard rock, increase mud displacement and lift slowly for slag deposition, impact to detach boulders. For hole collapse, immediately lift the drill and inject high-viscosity mud; ream for minor collapse, fill with clay and gravel for deep collapse, and use modified mud with casing for quicksand. Prevention includes stratum investigation, matched mud, speed control, slag cleaning and drill bit replacement as needed. Read More

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In the field of basic engineering construction, the performance of rotary drilling rigs directly determines the efficiency and quality of pile foundation engineering. XCMG and Sany are the leaders of the domestic camp, while Liebherr and Tuli represent the technological height of imported eq Read More

In the field of engineering construction and material handling, cranes, tower cranes, and elevators are often mentioned, but there are significant differences in their functional positioning, applicable scenarios, and performance characteristics, and they are not the same type of equipment. Read More