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The EP root pile method is a reinforcement technique developed in Italy to prevent natural slopes and ground from collapsing. "Root pile" refers to tree roots, and it involves inserting numerous mortar piles, approximately 10 cm in diameter and reinforced with rebar, into the ground like tree roots to integrate the soil.

Do you have any of the following concerns? ■ I want to know the features and application examples of the ground reinforcement soil method concisely. ■ I want to explain the method overview to a newcomer, but I don't have the materials or time for training. We have created materials that can solve these concerns. The materials are available for free, so please feel free to share and use them within your company. 【Table of Contents】 "Introduction to Ground Reinforcement Soil Method" 1: What is the Ground Reinforcement Soil Method? 2: Overview of the EP Route Pile Method 3: Applications of the Ground Reinforcement Soil Method 4: Case Studies *For more details, please download the PDF or feel free to contact us.

Are you facing any of the following issues? ■ Unable to improve the ground due to gravel and boulders ■ Ground improvement at a site where machinery access is difficult ■ Discovery of different ground layers than those identified in the ground survey ■ Unable to improve due to the depth of rock layers, slope of the ground, soil type, etc. 【Table of Contents】 ■ Case 1: Revealed by boring survey results ■ Case 2: Occurred during the delivery of construction machinery ■ Case 3: Discovery of different ground layers than those identified in geological surveys ■ Case 4: Reinforced earth wall does not meet the expected good ground conditions during design ■ Case 5: Site is too narrow for improvement ■ Case 6: Ground is found to be harder than expected ■ Case 7: Temporary road requires avoiding buried objects *For more details, please download the PDF or feel free to contact us.

The case study presents various examples focusing on densely populated residential areas and narrow sites. ■ Large-scale embankment construction sliding collapse prevention work ■ Retaining wall reinforcement work in residential areas with many constraints ■ Measures for steep slopes near private homes 【Table of Contents】 ■ 01 Challenges in densely populated residential areas and narrow sites ■ 02 Case 1 Large-scale embankment construction sliding collapse prevention work ■ 03 Case 2 Retaining wall reinforcement in narrow areas of residential neighborhoods ■ 04 Case 3 Measures for steep slopes in residential areas *For more details, please download the PDF or feel free to contact us.

The "EP Route Pile Method" is a ground reinforcement construction method that has been widely adopted since it was used in Japan in 1980 as a protective measure for an observation deck near a shield tunnel. The cement milk used as the injection material hardens and expands, enhancing not only the core material but also the friction with the soil, promoting integration with the ground. The mesh arrangement effect of the piles suppresses soil deformation and soil flow between the piles, achieving integration between the piles and the ground. 【Features】 ■ Enables downsizing of structures ■ Ensures traffic on existing roads during construction ■ Guarantees overall stability of the structure ■ Allows reinforcement while preserving existing structures ■ Can be implemented even in sloped areas or challenging ground conditions ■ Can be executed in narrow spaces *For more details, please download the PDF or feel free to contact us.

In architectural and landscape design, the treatment of elevation differences on the site and the selection of retaining walls are essential elements from a design perspective. On the other hand, these elements also require the selection of optimal construction methods that ensure safety and functionality from a civil engineering standpoint while considering aesthetic qualities. "The inorganic concrete wall detracts from the landscape." "I don't want to give up on design even under strict construction conditions." This document introduces actual case studies and a lineup of retaining wall proposals that take landscape considerations into account, in response to the challenges faced by architects. Hirose Reinforced Soil Co., Ltd. leverages its long-standing achievements in the civil engineering field to propose optimal solutions that combine "aesthetics," "constructability," and "economics" as a partner in "designing civil engineering within architecture." [Contents] ■ Challenges in civil engineering design in architecture and landscape ■ A partner in "designing civil engineering within architecture" ■ Case Study: Hinoyama Observatory (Hinoyama Ring) ■ Our business areas ■ Proposals for "showcase civil engineering" that harmonizes with the landscape *For more details, please download the PDF or feel free to contact us.