TBH construction method

Large-diameter drilling is possible! It demonstrates its capabilities under narrow conditions with low working headroom, such as beneath existing structures!

The "TBH Method" is a construction method applied in cast-in-place pile work, utilizing a specialized drilling machine equipped with a reverse circulation mechanism and a top drive system. Compared to the BH method, which employs a positive circulation mechanism and spindle system, this method facilitates large-diameter drilling as a permanent pile. In addition to the conventional reverse method, this technique can also be executed under narrow and low-space construction conditions. Due to the reverse circulation drilling method, issues related to the settling and sedimentation of slime generated during drilling have been resolved, allowing for reliable management and construction. 【Features】 - The construction machinery is compact, enabling work in confined spaces. - It can be executed even in low working heights, such as under elevated structures or indoors. - It is lightweight and small, making transportation easy even on narrow access roads. - Heavy machinery is not required for the assembly and disassembly of the machine. - Noise and vibration levels during construction are extremely low. *For more details, please refer to the PDF materials or feel free to contact us.

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basic information

【Other Features】 ■ Reliable slime treatment at the bottom of the hole ■ Enables drilling of gravel and soft rock layers by using a trochoidal bit ■ Capable of large-diameter drilling up to a maximum of φ2500mm *For more details, please refer to the PDF document or feel free to contact us.