A groundbreaking advanced technology for underground conduit installation work.
The "OSJ Method" is a continuous excavation shield pipe (box) installation method that involves performing a series of operations from excavation to backfilling while conducting soil retention using an open shield machine (OSJ machine) during the underground construction of pipes (box culverts) and open channels in urban areas. With a wealth of construction achievements, continuous improvements to the machinery, and numerous patents obtained, this method has now established itself as a reliable and unique construction technique, enabling safer and faster construction. Additionally, this method is registered in ARIC (Agricultural and Rural Development Private Technology Database). 【Features】 ■ Reduction of impact on living environments and decrease in traffic disruptions ■ Improved safety ■ Wide applicability ■ Significant shortening of construction periods ■ Cost reduction *For more details, please download the PDF or feel free to contact us.
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【Construction Procedure】 01. Assembly of the OSJ machine ⇒ Self-lowering of the OSJ machine 02. Excavation and laying of the pipeline 03. Self-elevation of the OSJ machine ⇒ Dismantling and removal of the OSJ machine *For more details, please download the PDF or feel free to contact us.
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The church was established with the aim of promoting the widespread use of the OSJ method and further improving technology, contributing to national land development and benefiting local communities. To address various issues associated with conventional methods in pipeline burial construction, please feel free to contact us regarding the "OSJ method," which is a groundbreaking advanced technology in the form of open-cut shield construction.