Kajima has developed a system called "K Trace" that manages the traceability of large quantities of materials. By registering individual information on construction materials handled in large quantities at construction sites on the web and linking them with location information obtained from GNSS (Global Positioning Satellite System), it is possible to instantly grasp the location information of large amounts of materials. Prevents rework and helps avoid process delays.
Since K-trace is a web-based system, it can be used on smartphones and tablets as long as there is an internet environment. Individual information and location information are linked and saved, and instantly displayed on a map by searching. Necessary materials can be extracted easily, quickly and accurately from materials existing in large quantities. Individual information and location information are automatically linked to prevent human errors during recording. If a positioning service is added, the horizontal accuracy can be reduced to plus or minus five centimeters, making it possible to obtain more accurate location information. Data is automatically saved on the cloud server.
K-trace was adopted for the stone management of the "Marugame Castle Stone Wall Collapse Restoration Project" currently under construction in Marugame City, Kagawa Prefecture. More than 10,000 stones will be stored and managed at three temporary storage sites in the city during the restoration work of the stone walls that collapsed in the 2018 typhoon. A large amount of stones can be centrally managed simply, quickly, and accurately using K-trace. Even in a vast temporary storage area, it was confirmed that the target materials could be searched accurately from a large amount of materials in an instant, and the stone materials necessary for stone wall restoration could be extracted in a minimum amount of time.
Taking advantage of the features of K-trace, the company has also adopted it for waste management that requires strict traceability, such as waste containing removed soil and contaminants generated in decontamination work. If it is introduced to land development work, it will be possible to link and manage ground survey results, such as embankment quality control data, and location information.
In the future, based on the verification results of the maintenance project, we aim to further improve the function of K trace. The range of introduction will be expanded in cooperation with ground investigation technology.
