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We propose a system that excels in construction and inspection to prevent third-party damage caused by falling objects!

【Optional Items】 ■Shackle ■Thimble ■Stainless Steel Wire ■Stainless Steel Sleeve ■Simple Lock ■Scrum Clamp (SC) *For more details, please refer to the PDF document or feel free to contact us.

A tunnel interior sheet that can be applied simply by peeling off the release film and sticking it on with adhesive.

【Main Performance】 - Peel adhesion (JIS Z 0237) at peel angles of 90 degrees and 180 degrees: 8N/24mm or more - Flame retardancy (NEXCO Test 738): Flame extinguishing time under 30 seconds, upper edge burn range under 600mm - Gas toxicity (Building Standards Act Notification): Mouse behavior cessation time of 6.8 minutes or more - Initial reflectivity (JIS Z 8722): 60% or more - Liquid resistance: 5% nitric acid, 5% sulfuric acid, saturated calcium hydroxide, 3% sodium chloride; immersion for 30 days with no swelling, cracking, or peeling - Weather resistance (JIS K 5600) using xenon lamp method for 1200 hours: No swelling, cracking, or peeling 【Construction Flow】 1) Substrate preparation 2) Layout marking 3) Primer application 4) Sheet installation (including edge sealing) 【Guidance Line】 - Sheet for guidance line with a width of 20 cm

Post-installed anchor non-destructive testing device

The built-in accelerometer in the hammer displays the magnitude of acceleration and the duration of acceleration generated when striking the test object in waveform. It visualizes the presence or absence of a delay in the acceleration generated by the reaction force against the acceleration at the time of impact, allowing for the evaluation of the integrity of post-installed anchors and the looseness of nuts. ● Waveform measurement: Sampling speed 0.5μs, measurement wavelength 2ms ● Hammer: 420 grams (standard hammer) ● Power supply: Supplied from the USB of the PC, maximum 350mA ● PC connection: Connects to Windows PC via USB ● Measurement data: Saved as text on the PC ● Accessories: Storage case / USB cable / tablet PC

Existing Tunnel Reinforcement Method Using "CFRP" Bonded Plates - Achieving Effective Tunnel Interior Reinforcement with High-Strength CFRP Using Carbon Fiber Sheets and Separators.

In the CFRP method, carbon fiber is sewn with a separator, fixed to concrete with adhesive, and then impregnated to create FRP, allowing for strip arrangements due to increased strength, resulting in high reinforcement effectiveness. *Improved Workability By applying the adhesive and impregnating agent in separate processes, it is not dependent on the skill level of the workers. Additionally, due to its lightweight and flexible nature, workability is improved compared to our steel plate bonding methods. *Realization of Strip Arrangement through Increased Strength Compared to our CFRP method, a weight of up to 2,400g/m2 is possible, ensuring strength comparable to full surface bonding even with strip arrangements. The strip arrangement allows for monitoring the progression of cracks after reinforcement. *Expectations for Reduced Construction Time and Cost Savings.