H-type PC pile

Wall materials for retaining structures using precast PC components that do not require temporary earth retention.

last updated Apr 20, 2022

Multi-drill method

Responding to the diversification of construction work! A series of operations from underground obstacle removal to pile construction can be performed with the same machine.

last updated Apr 20, 2022

KCTB cast-in-place steel pipe concrete pile

Excavated residual soil and concrete volume reduced by up to 40%! The outer diameter, thickness, and material of the steel pipe can be freely designed.

last updated Apr 20, 2022

Power Blender Method

A construction method with low environmental impact achieved through efficient execution that demonstrates mobility and functionality.

last updated Apr 20, 2022

Tsubasa pile (steel pipe rotary driven pile)

Achieving high tip support capacity! An environmentally friendly construction method with no soil disposal, low vibration, and low noise.

last updated Apr 20, 2022

TBH construction method

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

last updated May 16, 2025

Reverse Circulation Drilling Method

It can handle deep excavation and allows for rock drilling by using special bits to increase torque!

last updated Jun 08, 2020

Vibratory Tremie Method for Cast-in-Place Concrete Piles

Apply vibration during driving to promote filling. Suppress insufficient filling at the pile head and enlarged base. Patent obtained.

last updated Jul 11, 2022

Earth Drill Method (Bell Earth Method)

Large-diameter and deep drilling is possible! The four-wing excavation pit allows for the construction of an excellent bell-bottom shape.

last updated Apr 20, 2022

All Casing Application Method: SENTAN Pile Method

Dramatic improvement in the reliability of piles! A construction method developed with consideration for the surrounding environment, seeking low noise and low vibration.

last updated Apr 20, 2022

All Casing Application Method: BKF Method

Can be excavated reliably without affecting technology! Low vibration and low noise hydraulic hammer grab.

last updated Apr 20, 2022

All Casing Application Method: Enlarged Base Pile Method

Shortening construction time and reducing costs! This is a method that allows for the removal of obstacles and the creation of piles in one process.

last updated Apr 20, 2022

All Casing Application Method: Existing Structure Demolition Work

Active in the foundation removal of underground structures due to redevelopment construction and new foundation work!

last updated Apr 20, 2022

All casing is entrusted to Ryo Construction Foundation! "All Casing Method"

There is little impact on the surrounding ground, and it is possible to excavate bedrock and boulders as well as cut reinforced concrete! We also have many application methods available.

last updated Apr 20, 2022