The temperature is high in summer, and the rotary drilling rig is operating in such an environment, and the components face many tests. Good maintenance work can ensure the stable operation of the rig and extend the service life. The following introduces the key points of summer maintenance of rotar Read More

The construction of bored pile is mostly carried out in quaternary loose strata, so collapse is the most common accident in the construction of bored pile1. Signs before an accidentSlump hole and shrinkage hole occur in drilling construction, generally speaking, it does not happen suddenly. There we Read More

1. Check the appearance of wear: If the drill shell, drill pipe and other parts have a large number of scratches and deformation, it indicates that it is used frequently, which may affect the subsequent life.2. Check working hours: the number of working hours is large, the components run for a long Read More

1. Mud wall protection against hole collapseWhen drilling the loose soil layer is easy to collapse by the horizontal soil pressure, the mud balances the soil pressure by the outward pressure, forming a stable ‘mud skin’ to protect the hole wall.2.Characteristics of non-circulating mud processThe rot Read More

Rotary drilling rig is widely used in many fields such as foundation, bridge construction and tunnel construction. According to different construction needs, rotary drilling RIGS can be divided into small, medium and large, each of which has its own advantages and is suitable for different environme Read More