横山基礎工事 List of Products and Services

Solving various challenges in maintenance, repair, seismic reinforcement, and renewal construction with the concept of "inner excavation with capsules." 【Features】 ■ Obtained construction technology examination certification ■ Capable of handling difficult construction conditions for well foundation work ■ Possible to perform large-diameter and deep insertion construction ■ Achieves low noise, low vibration, splash prevention, and no soil discharge. Construction considerate of the surrounding environment is possible ■ Shortens construction period by improving soil discharge efficiency *For construction examples, please visit our website via the related links.

The "Micro Joint Pile Method" is a rock embedding method using special short-length jointed steel pipe sheet piles that eliminates the need for pre-drilling at the joint sections. By utilizing special short-length joints (micro joints) to shorten the pitch, the labor of pre-drilling is eliminated. By installing micro joint-type steel pipe sheet piles specifically designed for this method at approximately one-fourth the conventional short pitch, pre-drilling at the joint sections becomes unnecessary, allowing for simultaneous rock excavation and installation of steel pipe sheet piles in one process. 【Features】 ■ Construction technology review certification obtained ■ Direct installation of steel pipe sheet piles into rock layers is possible ■ Rental options for steel pipe sheet piles are available ■ Elimination of pre-drilling labor through pitch shortening with special short-length joints *For more details, please refer to the PDF materials or feel free to contact us.

The "PRD-ROSE Method" is a group of open-end down-the-hole hammer drilling technologies that allows for the selection of methods tailored to various construction conditions such as diverse terrain, soil types, and excavation diameters. With a crane-suspended construction style, it can flexibly accommodate the distance and elevation differences between heavy machinery scaffolding and the center of the pile, while also minimizing the installation area of the heavy machinery scaffolding. Thanks to a variety of drilling techniques, including large-diameter low-vibration and low-noise drilling with CD (Cluster Drill) type hammers for hard rock formations, rapid construction is achieved under diverse site conditions. 【SINGLE TYPE Features】 ■ Standard type for open excavation ■ Suitable for stable ground with stable borehole walls ■ Capable of large-diameter drilling up to 1,830mm *For more details, please refer to the PDF materials or feel free to contact us.

The "Large Diameter Deep Depth Steel Pipe Installation Method (φ3200)" is a method for directly rotating and installing steel pipe piles equipped with a drilling bit at the tip. It utilizes a full-circle rotary drilling machine with one of the largest diameters in the country, φ3200mm, capable of handling various underground construction projects. If necessary, large-diameter steel pipes can be directly rotated and installed into bedrock layers. The new technology of casing inner drilling allows for low-noise and low-vibration construction driven by hydraulic power, making it suitable for nighttime work in urban areas. 【Features】 - A method for directly rotating and installing steel pipe piles equipped with a drilling bit at the tip. - Utilizes a full-circle rotary drilling machine with one of the largest diameters in the country, φ3200mm, capable of handling various underground construction projects. - Large-diameter steel pipes can be directly rotated and installed into bedrock layers if necessary. - Effective in construction projects that protect cities from flooding caused by sudden heavy rains. - Can also be used for the construction of launch and arrival shafts for various shield projects. *For more details, please refer to the PDF materials or feel free to contact us.

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.

The "Narrow Space Clearance Construction Method" is a machine configuration that combines a narrow space-compatible drilling machine, modified from the specifications of a full-rotation all-casing general-purpose machine, with a hydraulic telescopic boom crawler and a hydrograb. This design minimizes the occupied area and adapts the machine for pile construction in confined spaces. The standard working space for a φ1500mm class drilling machine is more than 160m2, with a width of 8m, a length of 20m, and a headroom height of over 5.5m. 【Features】 ■ Capable of various pile construction in narrow spaces ■ Low vibration and low noise during casing drilling ■ All main machines are hydraulically driven ■ The combination of the narrow space-compatible drilling machine, hydraulic telescopic boom crawler, and hydrograb allows for construction under headroom restrictions of 5.5m *For more details, please refer to the PDF document or feel free to contact us.