1.using the computer control system of positioning, ensure the index hole: the operation is controlled by hydraulic system of rotary drilling rig (full computer control), convenient and accurate in the process of pile hole alignment, para operation in the cab by using advanced electronic equipment can accurately position, to achieve the best state of drilling rig. To effectively guarantee the whole index.
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2.For different geological conditions, the efficiency of the whole formation is high: the rotary drilling rig is 5~6 times the whole of the conventional bridge pile, and it is 28~35 time the whole of the percussion drill. Moreover, the crawler mechanism of rotary drilling rig can easily present the drilling rig to the desired location, instead of the traditional circular drilling rig, which is cumbersome and effective in promoting construction progress.
3.construction noise is small, and the environment is not polluted. Compared with the traditional circulating drilling rig, the rotary drilling rig can carry out the earth's outward transportation to ensure the leveling of the construction site, while the traditional circulating drilling machine produces mud continuously, and the rotary drilling rig can also be applied to the drilling without mud (dry drilling).
4.Reliable quality: the stability of the entire wall, hole Houqing completely, fast construction progress, has to ensure the quality of construction.