MJS method with its precise, controllable advantages in the field of rotary jet reinforcement in the field of unique, meritorious and outstanding! However, in some complex strata, such as: backfill + gravel + mud + sandy sand strata, there are often difficulties in drilling, drilling, buried drilling high risk, resulting in construction can not be carried out.
Jiangsu tin probe MDL-C200 top drive rig with high-power top drive impact, coupled with a reasonable speed configuration, coupled with self-produced 219 drive double tube drilling tools, successfully solved the problem, so that a subway project ahead of schedule The MJS construction of the above complex strata has been well received by the construction side and Party A.
High-power top drive impact can easily overcome the backfill layer, gravel layer, a reasonable speed can drive the sleeve for pure rotary drilling, casing 187 diameter fully meet the MJS drill pipe through, can be used as a casing, Protect the rotary jet from the smooth start of the drill pipe, and completely avoid the operation may occur when the drill, buried drill risk.
Contact Person: Mr. Karr Young