横山基礎工事 List of Products and Services

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 "LIBRA Method" is a temporary bridge and cantilever construction method that simplifies the securing of pile alignment by using upper steel panels as guides for pile driving, eliminating the need for scaffolding until the upper structure is erected, and streamlining the complex reinforcement of bridge piers on sloped terrain. Since high-altitude work is not required, it ensures safety while reducing work time. It is often adopted as part of national resilience initiatives and has a wealth of experience in construction access roads and work platforms for the expansion of highways to four lanes, as well as disaster recovery projects. 【Features】 - Enables parallel work on upper and lower structures, reducing waiting time and shortening processes. - The connection points of the newly installed panels to the pile bridge piers serve as guides for steel pipe installation, eliminating the need for dangerous guide material installation work. This improves safety while also reducing changes to the natural terrain and minimizing deforestation, thereby lessening the impact on the natural environment. - Drilling and installation can proceed simultaneously, allowing for stable construction from soft ground to hard ground. - Adaptable to various site conditions such as steep slopes in mountainous areas, rivers, dams, ports, and urban civil engineering. *For more details, please refer to the materials. Feel free to contact us with any inquiries.*

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.