Construction is possible even in narrow spaces! There is no need for support walls, and it can be easily combined with open-cut methods.
The "Grun Drum" is a pneumatic propulsion device that uses compressed air from a standard compressor. Using the power of compressed air, the piston inside the product strikes the main head, and this impact force is transmitted to the steel pipe through the ram cone, enabling the propulsion of the steel pipe. Due to its simple structure, it is an extremely easy product to operate and maintain. 【Features】 ■ Each part of the machine is made from carefully selected materials ■ Each component is precisely processed, ensuring trouble-free operation ■ The seals are complete, resulting in minimal consumption of compressed air and oil ■ Simple structure ■ Extremely easy to operate and maintain *For more details, please refer to the PDF document or feel free to contact us.
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basic information
【Features of the Construction Method】 ■ Can be constructed in narrow road widths ■ Can be advanced in any direction ■ Applicable to a wide range of ground conditions ■ Small shaft size ■ No need for support walls *For more details, please refer to the PDF document or feel free to contact us.
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Applications/Examples of results
【Main Uses】 ■ Sewer construction ■ Under-track crossing ■ Communication cable construction ■ Gas and water pipe construction ■ Launching from underground structures ■ Pipe roof construction *For more details, please refer to the PDF document or feel free to contact us.
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Company information
Yoshida Construction Co., Ltd. is a company primarily engaged in civil engineering and archaeological heritage projects. We promote various technologies such as Envi-Liner and Iron Mall, and under the belief that "only building construction supported by rich experience can enrich people," our professionals, well-versed in all information related to architecture, conduct research and design tailored to each customer's case, creating an ideal spatial environment for the future.