Notice of Participation in the 7th International Construction and Surveying Expo (CSPI-EXPO 2025) from June 18 (Wednesday) to June 21 (Saturday), 2025.

Corresponds to various sharp curves! A construction method for clients who want to reduce costs or shorten construction time.

The "TDR Shot Lining System Method" is a secondary lining construction system for shield steel segment sections. It responds to needs such as "wanting to fill steel segments in shield tunnels with sharp curves," "wanting to shorten construction time," and "wanting to increase construction speed." By introducing this method, it can accommodate sharp curve sections that are difficult to construct with conventional methods, and it can fill various areas of steel segments, achieving high density. 【Benefits of Implementation】 ■ Achieved approximately 1.7 times construction progress - T Construction Co. ■ Able to handle sharp curve sections that are difficult to construct with conventional methods ■ Can fill various areas of steel segments, resulting in high density *For more details, please refer to the related links or feel free to contact us.

• Tunnel construction
• Renovation and repair methods
• Civil Engineering Method

Supports shield construction! Low dust and low rebound spraying can be compactly achieved!

The "PF Mortar Spraying System" can be constructed according to the required amount on-site, making it possible to implement a compact and simple system when needed. It offers high strength, easy operation, and the ability to spray in areas with water inflow. Low dust and low rebound spraying can be achieved in a compact manner. This system can be used for spraying in small cross-section tunnels, primary spraying reinforcement in unconsolidated ground, and for repair and widening work in existing tunnels. 【Benefits of Implementation】 ■ High strength, easy operation, and capability to spray in areas with water inflow ■ Can be constructed according to the required amount on-site ■ Can be implemented when a compact and simple system is needed *For more details, please feel free to contact us.

• Tunnel construction
• Renovation and repair methods
• Civil Engineering Method

A method of selecting and spraying high-quality mortar that meets various requirements and performance based on its intended use!

The "TDR Shot Lining System" is a technology based on a wet spraying method of high-performance mortar for the repair of deteriorated concrete cross-sections. It was developed to fill the gaps between steel segments and the finished surface of the lining, which are expected to be difficult to address with conventional cast-in-place lining concrete. By using a continuous mixing mixer, it enables large-volume mortar spraying. 【Features】 ■ Can accommodate various sharp curves ■ Easily adapts to special shapes and structures ■ Materials can be selected according to the tunnel's application ■ Can fill every corner of the steel segments, achieving high density ■ Fast construction speed *For more details, please refer to the related link page or feel free to contact us.

• Special Construction Method

It is possible to carry out the necessary amount of work at the site in a short time when needed! We are currently providing case materials for repairs of existing water supply tunnels and existing railway tunnels.

The "Disaster Recovery Tunnel Repair Spraying Construction System" achieves low dust and low rebound through the synergistic effect of liquid quick-setting agents and Denka PF mortar. Denka PF mortar has high compressive and flexural strength, and its toughness is also improved. It has good adhesion and can be sprayed even in areas with water inflow. With the push of a button, automatic spraying is possible, making operation and cleaning simple, and it can be constructed using only the compact M-PAC (spraying system). 【Features】 ■ Low dust and low rebound ■ High strength ■ Easy operation ■ Compact ■ Pre-mixed *For more details, please refer to the PDF materials or feel free to contact us.

• Earth retaining wall/foundation reinforcement

Corresponds to various sharp curves! Secondary lining construction system for shield steel segment sections.

We would like to introduce a case study of the "TDR Shot Lightning System." This method can easily accommodate special shapes and structures. It can fill every corner of the steel segments, achieving high density. In the sewer pipe and machine remnants (underground joints) of the second Toyama trunk line construction, it was applied with a finished inner diameter of 2400mm and a total length of 20m. 【Features of the Method】 ■ Accommodates various sharp curves ■ Easily adapts to special shapes and structures ■ Materials can be selected according to the tunnel's purpose ■ Fast construction speed ■ Easy maintenance ■ Excellent economic efficiency and shortened construction period *For more details, please refer to the PDF materials or feel free to contact us.

• Special Construction Method

Introducing a system composed of an electric dust collector, a self-propelled crawler cart, and an expandable duct.

The "Eco Station System" is a vacuum collection and ventilation system for tunnel excavation work, integrated with a self-propelled crawler cart, dust collector, and telescopic duct. It is composed of an electric dust collector, a self-propelled crawler cart, and a telescopic duct. Since the system is not suspended from the tunnel ceiling, it does not obstruct the lighting sources in the tunnel, ensuring adequate illumination and good visibility, which contributes to safe operations. 【Features】 - There is no risk of the system falling from the tunnel ceiling due to contact with heavy machinery booms, as it is not suspended. - There is no need for unsafe high-altitude repositioning. - It does not obstruct lighting sources, ensuring adequate illumination and good visibility for safe operations. - It can be moved to various dust generation work points throughout the tunnel for dust collection. *For more details, please refer to the related link page or feel free to contact us.*

• Tunnel construction

Introducing a groundbreaking method for subsidence suppression by implementing preload on support structures and the ground to control sinking!

The "Preload Shell Method" is a subsidence suppression auxiliary system that integrates the ground and the support structure by setting a bag (jacket) between them and injecting non-shrink mortar into the bag, thereby ensuring reliable support capacity. The "Preload Jacket" is a bag made of seamless tubular fabric equipped with an injection port with a check valve, allowing for easy injection work due to the presence of the check valve. Additionally, the "Preload Mortar" is a premixed type of rapid-setting filling material (Denka Preload Mortar) developed for the Preload Shell Method. You can also view materials regarding construction procedures and adoption results. Please feel free to contact us when needed. 【Features】 ■ Revolutionary subsidence suppression method ■ A bag is set between the ground and the support structure, and non-shrink mortar is injected into the bag ■ The support structure and the ground are integrated, demonstrating reliable support capacity *For more details, please refer to the PDF materials or feel free to contact us.

• Civil Engineering Method

Heat stroke prevention! Energy-saving cool air generation device capable of cooling underground temperatures from 30-32°C to below 28°C.

The "M-Cool" is an energy-saving cooling device that generates cool air by directly exchanging heat between spring water and hot air using a radiator. It can be loaded onto a 2-ton truck, making it easy to transport and retreat near the work site. The cool air directly affects the workers, lowering their perceived temperature. By applying this product, the underground temperature of 30-32°C can be cooled to below 28°C, and it can discharge air at a speed of over 4 m/s, providing an ideal underground environment. 【Features】 ■ Low power consumption without using a chiller ■ Compact and mobile ■ Large air volume of 1,000 m³/min ■ Easy installation ■ Maintenance-free *For more details, please refer to the PDF document or feel free to contact us.

• Ventilation system

The material loss during mixing with the mixer is minimal, and it helps reduce rebound and dust.

The "Subshot System" continuously supplies special fiber-reinforced mortar "Denka PF Mortar" using a mixing pump and combines it with a liquid quick-setting agent "Denka Subshot L" to enable continuous spraying construction from the rear carriage of a TBM (Tunnel Boring Machine) and other equipment. This allows for rapid construction, reduction of underground work, and improvement of the working environment. Additionally, it minimizes material loss during mixing and kneading, reduces rebound, and decreases dust. 【Features】 ■ Continuous spraying construction from the rear carriage ■ Enables rapid construction, reduction of underground work, and improvement of the working environment ■ Minimal material loss during mixing and kneading ■ Reduces rebound and decreases dust *For more details, please refer to the related link page or feel free to contact us.

• Systems Architecture

High-quality sprayed mortar can be obtained! We have a range of construction machinery that can be adapted to the construction conditions.

"Denka PF Mortar TYPE-K" is a pre-mixed mortar that combines special admixtures, finely graded fine aggregates, and high-quality fibers. It is mixed and pumped using a continuous mixing pump. A dedicated acidic liquid quick-setting agent, "Denka Subshot K," is added at the nozzle tip and sprayed using a special spraying nozzle. Additionally, you can view examples of PF mortar applications and achievements based on different uses, so please feel free to contact us when needed. 【Features】 ■ The incorporation of high-quality fibers improves bending strength, reduces brittleness, and enhances toughness. ■ Excellent quick-setting properties are achieved. ■ Superior initial and long-term strength are obtained. ■ Excellent low dust and low rebound spraying is possible. ■ The acidic liquid quick-setting agent used is safer for the human body compared to conventional alkaline liquid quick-setting agents. *For more details, please refer to the PDF materials or feel free to contact us.

• Mortar and plaster materials

The WSG (Web Sustainability Guidelines) provides best practices for web sustainability based on the latest evidence and research. In this seminar, we will discuss the social background that necessitates the WSG, the structure and content of the WSG based on the latest draft, and surrounding trends. ■ Recommended for: - Web personnel from companies that focus on providing products or services aimed at solving social issues. - Web personnel from organizations actively working on Sustainable Development Goals (SDGs). - Web personnel looking for new themes or approaches to further enhance the quality of their company's website. *Please refrain from applying if you are from a competing company or an individual. ■ Agenda: 1. What are the Web Sustainability Guidelines (WSG)? 2. Background necessitating the WSG. 3. Structure and content of the WSG (UX design/Web development/Hosting, infrastructure, systems/Business strategy and product management). 4. Future trends of the WSG and the future of sustainable web design. 5. Q&A session. *Please note that the content of the above agenda may change without prior notice. Thank you for your understanding.

G-Smart Co., Ltd. will hold a recorded webinar to publicly share the recorded footage of the live stream "Building Management DX Business Demo WEEK" for a limited two-week period in July. Smart Attack V3 is a no-code field reporting app that allows users to complete reporting tasks on their smartphones and share and manage the report content in real time. In this webinar, we will introduce the methods for creating and managing reports using Smart Attack V3, focusing on reporting tasks related to building management, with a different theme each day over the two-week period, accompanied by easy-to-understand demonstrations. Please take this opportunity to register. ★★★ Recommended for ★★★ - Those who manage reports for cleaning, move-in/move-out, equipment inspections, etc., using paper or Excel. - Those who feel challenges in unifying and digitizing reports that differ by task. - Those considering a no-code reporting tool that fits their company's operations. ★★★ Event Schedule ★★★ Period: July 6 (Monday) to July 17 (Friday) from 15:00 to 15:30 * Each theme will be held on different days of the week. Monday: Equipment Inspection, Tuesday: Cleaning, Wednesday: Security, Thursday: Meter Reading, Friday: Move-in/Move-out Check.

Decarbonization is currently shifting its positioning from "cost management" to "enhancing competitiveness," and we are entering an era where mere regulatory compliance is no longer sufficient. With the strengthening of sustainability labeling regulations and the EU's Carbon Border Adjustment Mechanism (CBAM), the environmental value of products has transcended corporate responsibility and become a crucial element in market competition. On the other hand, many companies are facing challenges such as: - The complexity of CFP calculation and environmental labeling requirements makes it difficult to know how to proceed. - How to balance regulatory compliance with enhancing competitiveness (differentiation). - Difficulty in prioritizing ISCC certification and CBAM compliance. In this seminar, we will invite Wastebox Co., Ltd., which has extensive consulting experience in the environmental field, to introduce ideas and specific examples on how to connect responses to decarbonization and the circular economy to business growth from both "offensive" and "defensive" perspectives. ■ Part 1: "Understanding the Environmental Value of Products from Offensive and Defensive Perspectives: How to Leverage Decarbonization and the Circular Economy for Differentiation and Regulatory Compliance" ■ Part 2: "Why Are We Entering an Era of Product Environmental Value Now? (Tentative Title)" ■ Part 3: "Introduction of Services Supporting the Reliability of Product Environmental Value"

The requirements for quality management systems in the automotive industry are becoming increasingly sophisticated year by year, and a more nuanced understanding and appropriate response are required for obtaining and maintaining IATF 16949 certification. In particular, the application of Rules 6th Edition has led to changes in the audit process and certification requirements, making it essential to understand these accurately. In this webinar, we will clearly explain the latest trends in IATF 16949 certification and the key points of Rules 6th Edition from the perspective of auditors, directly relating to practical applications.

In the food industry, as the importance of ensuring quality and safety continues to rise, there is a growing demand for understanding international food safety standards and appropriately responding to the latest requirements. In FSSC 22000 Ver. 7, aspects such as "food safety culture," "risk-based thinking," "unannounced audits," and "supplier management" have been strengthened, making corporate responses crucial. In this webinar, Mr. Hiroshi Ideta, Regional Representative for Japan and Korea at the FSSC Foundation, will explain the latest trends in domestic and international food safety standards and the trends of certified companies. Bureau Veritas will introduce the key points of the FSSC 22000 Ver. 7 revision. If you are considering how to respond to the standard revision or want to understand the latest trends, please join us. ■ Part 1: "Domestic and International Trends Surrounding Food Safety Standards and Trends of FSSC 22000 Certified Organizations" 　　　　Mr. Hiroshi Ideta, Regional Representative for Japan and Korea, FSSC Foundation ■ Part 2: "Explanation of Key Points of FSSC 22000 Ver. 7 Revision" 　　　　Bureau Veritas Japan Co., Ltd., System Certification Business Division, Technical Department 　　　　ISO/FSSC22000 Auditor, Koichi Mukai