Disaster recovery tunnel repair spraying construction system *Documentation with case studies provided.
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.
basic information
【Construction Examples】 ■ New construction of an existing tunnel evacuation communication shaft ■ Repair of an existing water supply tunnel ■ Repair of an existing railway tunnel *For more details, please refer to the PDF document or feel free to contact us.
Price range
Delivery Time
Applications/Examples of results
【Applications】 ■ Spraying for small cross-section tunnels ■ Primary spraying reinforcement for unconsolidated ground ■ Repair and widening work for existing tunnels ■ Spraying reinforcement for the shield machine's mirror surface ■ Spraying on the wall surface of deep foundation piles ■ Back spraying after TBM excavation *For more details, please refer to the PDF materials or feel free to contact us.
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Notice of Participation in the 7th International Construction and Surveying Expo (CSPI-EXPO 2025) from June 18 (Wednesday) to June 21 (Saturday), 2025.
MCN Co., Ltd. will be exhibiting at the "7th International Construction and Surveying Expo (CSPI-EXPO2025)" held at Makuhari Messe. Cutting-edge products, technologies, and services from the evolving industries of construction machinery, heavy equipment, attachments, construction DX, and i-Construction will be gathered in one place. This exhibition is one of the largest in Japan, where professionals from the construction and surveying industries come together for information gathering and problem-solving discussions. We plan to showcase materials related to disaster recovery spraying systems, mortar repairs, and electric dust collectors. We would be delighted if you could visit our booth when you come to the venue.
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Construction examples of small cross-section tunnels.
Thank you all for your continued support. This time, I would like to introduce a construction case of a small cross-section tunnel. Below are the construction conditions: 1. Construction cannot be done with large machinery. 2. Material delivery is difficult. 3. There are concerns about noise issues. Construction was carried out under these conditions. The materials were loaded onto a small truck and sprayed at our small plant. If you have any issues with spraying in tunnels or anything else, please contact the MCM Hokuriku Center. Thank you very much.
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Example of Mortar Spraying Construction 1
MCN Corporation handles electric dust collectors for tunnel construction, shotcrete mortar application systems for TBMs, rapid shotcrete systems for small cross-sections, and other civil engineering-related materials, machinery systems, and consumables. The most frequently rented equipment from our company is machinery for mortar spraying. In this news update, we have included examples of spraying from a project we were previously involved in. In the future, we plan to share other construction examples and features of electric dust collectors, so if you have any questions about our products, please feel free to contact us. Thank you for reading.
