Shanghai Feshiai Industrial Technology Co., Ltd. is committed to the research, development, and manufacturing of firestop sealing systems and cold-connect nail-firing systems that comply with standards worldwide. These include passive firestop sealing systems certified by authoritative third-party organizations across different countries, such as UL-certified series meeting the American NFPA standards, ETA-certified series meeting the European EN standards, and CCCF-certified series meeting the Chinese GB standards, as well as cold-connect nail-firing systems applied and recognized in numerous global energy projects. The company boasts a professional engineering design and R&D team, providing comprehensive design and construction solutions along with testing and inspection reports for engineering projects, ensuring the practical application and acceptance guidance of these innovative products. Its product range covers a full spectrum of fire protection solutions, including fireproof coating boards, metal plates, fireproof coatings, sealants, fireproof tapes, mortar, cable penetration wall seals (MCT), and fireproof finishes for steel structures and concrete.

Jiangsu Fangshun Digital Geotechnical Technology Co., Ltd.
Headquartered in Changzhou, the company focuses on safety, efficiency, and cost reduction, dedicated to the research, application, and promotion of green underground space support technologies.

The ultra-high pressure jet grouting pile construction process achieves higher vertical accuracy and greater flow rates under ultra-deep and ultra-high pressure conditions. By precisely controlling grouting pressure and flow, it ensures reliable pile formation quality for large-diameter jet grouting piles.

Key Construction Processes and Parameters

1. Uses the Auman HDL-200D full-casing pilot hole drilling rig, with casing specifications of φ219×11mm.

2. Pilot hole verticality meets design requirements (1/400–1/500).

3. After installing PVC pipes, jet grouting is performed using the Italian Soilmec SM-20 jet grouting rig.

4. Pile depth: 113m, diameter ≥2m; jet grouting pressure: 45MPa, flow rate: 420L/min; cement slurry ratio: 1:1, using P.O42.5 cement with 40% admixture; sand layer 28-day reinforcement strength ≥2MPa, permeability coefficient ≤1×10⁻⁷ cm/s.

5. Air flow rate: 10–12m³/min, air pressure: 1–1.2MPa.

Intelligent Warning System for High-Altitude Operations

This system, developed by Changzhou Jinling Intelligent Technology Co., Ltd., integrates IoT and big data technologies to enhance the safety management of high-altitude operations. Through a combination of “intelligent wearable devices + cloud monitoring center,” the system enables real-time monitoring, remote supervision, accident tracing, and closed-loop management of high-altitude workers’ behavior.

• Real-time Monitoring: Detects violations such as “failure to wear safety harnesses,” “safety harnesses not properly anchored,” “improper high-low usage of harnesses,” and “stepping into voids or falls.”

• Intelligent Warning: Issues audible and visual alerts via smart terminals to prompt workers to correct unsafe behavior.

• Remote Supervision: Supervisors can monitor workers’ status, images, audio, and trajectories in real time via mobile or computer interfaces.

• Emergency SOS: Workers can press and hold a button on the smart terminal to send a distress signal instantly.

• Data Management: Supports management of worker information, device management, and querying of historical trajectories and alarm records.

Tunnel Structural Health Monitoring System
Co-developed by JSTI Group and Nanjing Sipeng Electronic Technology Co., Ltd., this system serves as a real-time health examination tool for monitoring tunnel structural deformation and stress conditions. It provides an intuitive understanding of the structural health of tunnels through an integrated monitoring platform. Utilizing automated sensing technology, it conducts real-time and continuous monitoring of the operational environment, load inputs, structural mechanical states, and response parameters throughout the tunnel’s lifecycle. The system stores and analyzes monitoring data using specific strategies and technical methods, enabling comprehensive assessment of tunnel operational conditions and guiding maintenance decisions.

Specialized Technologies: Translocation, Jacking, Underpinning, and Controlled Settlement
Jiangsu Hongji Energy-saving New Technology Co., Ltd. has achieved domestically leading levels in construction technologies and methodologies for foundation pit support, ground treatment, building translocation, building jacking and rectification, and structural reinforcement. The company has accumulated extensive experience in construction management, cost control, and process coordination. Its projects have received numerous accolades, including national demonstration projects, provincial key projects, and municipal excellence awards, setting multiple national and world records and earning widespread acclaim from all sectors of society.

Underground Space Audio Positioning

Cangqiong Technology’s Audio “Indoor Beidou” Positioning System is highly compatible with large and complex indoor spaces such as high-speed railway stations, museums, and exhibition centers. Its innovative spatial adaptation algorithm achieves a significant breakthrough in positioning accuracy within complex environments. While maintaining centimeter-level high-precision positioning performance, the system is also compatible with mainstream consumer mobile devices, providing a seamless indoor-outdoor navigation experience.

Focused on indoor high-precision positioning technology for underground spaces, the globally leading Kepler A100 Positioning System is showcased. Developed by Academician Chen Ruizhi under the National “13th Five-Year Plan” Key Research and Development Program, this technology integrates intelligent hybrid positioning and indoor GIS technology to achieve sub-meter-level accuracy for indoor navigation. It overcomes the limitations of traditional satellite navigation blind spots, offering a stable and efficient “Chinese solution” and demonstrating its application potential in areas such as smart cities and emergency evacuation.

New Materials for Waterproofing in Underground Engineering

Nanjing West Cowhide Waterproof Technology Co., Ltd. specializes in the research, development, production, sales, and construction of sealing and waterproofing products for concrete structures.

Focusing on the global technical challenge of waterproofing in tunnels and underground spaces, the company presents innovative waterproofing solutions for urban tunnels, highway tunnels, and other underground engineering projects. The exhibition area systematically displays the composition, structural characteristics, technical features, and application scenarios of new waterproofing materials. Through material tensile testing stations and compressive load testing models, it vividly illustrates how breakthroughs in material performance critically enhance engineering durability. Visitors can gain a clear understanding of how cutting-edge products, such as reactive-bonded waterproofing membranes, extend the service life of underground structures by improving key indicators like tensile strength and compressive resistance. A dedicated performance comparison zone showcases simultaneous tests of traditional versus new materials, highlighting the transformative impact of technological innovation in addressing persistent leakage challenges.