Screwdriver construction method
Birth of a multi-driver compatible with hard rock formations! High-speed drilling with a hydraulic casing pipe drilling device!
The "Screw Driver Method" can accommodate a wide range of drilling diameters from φ800 to 3200mm. While performing casing drilling with a fully rotating all-casing drilling machine known for its drilling capabilities, it utilizes a screw-type middle drilling device to intermittently discharge large volumes of soil in an earth drill manner, achieving simultaneous improvements in speed, quietness, and environmental performance. This is a new standard that consolidates the features of conventional methods. 【Features of the Screw Driver Method for Hard Ground】 ■ Screw type ■ The storage capacity of excavated soil is approximately 8 to 25 times that of a hammer grab, significantly reducing the number of discharges ■ The discharge efficiency improves compared to a hammer grab in proportion to depth ■ Reliable shear excavation is possible for general earth, consolidated clay layers, gravel layers, sand and gravel layers, soft rock layers, etc. ■ It can be used not only for casing rotary drilling methods but also as a middle drilling device for pipes such as steel pipes and steel sheet piles. *For more details, please refer to the PDF materials or feel free to contact us.
- 企業：横山基礎工事
- 価格：Other
