Volume-based acceptance criteria and analysis methods for surplus soil based on the amount of generated soil.

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Soil survey

last updated：Sep 07, 2026

ジオテック

Volume-based acceptance criteria and analysis methods for surplus soil based on the amount of generated soil.

In large-scale construction and civil engineering projects, how to efficiently and legally dispose of the massive amounts of excavated soil is key to controlling costs and timelines. This survey service provides analysis and investigation that fully complies with strict acceptance criteria defined on a volume basis, such as every 5000m3 (according to Chiba Prefecture regulations), every 2500m3, or every 50m square (according to Tokyo Port terminal standards). By optimally combining the "5-point mixed method" for efficiently sampling soil from vast areas and pinpoint methods for direct sampling from specific depths, we can quickly conduct large-scale soil screening. Geotech's reliable processes reduce analysis costs by eliminating excessive surveys and achieve optimization in site selection and smooth transportation planning.

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basic information

Volume analysis of more than 45 items including the Ministry of the Environment's soil environmental standards, dioxins, oil content, fluorine, etc. Lot-specific sampling design fully compliant with Chiba Prefecture regulations (1 sample per 5000m3, evenly mixed across all soil layers) and Tokyo Port terminal standards (calculated based on the greater of every 2500m3 or every 50m square, mixing prohibited).

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Applications/Examples of results

Preliminary compatibility analysis of large volumes of excavated soil from large-scale construction projects such as major redevelopment, high-rise building construction, and infrastructure development. Development of lot allocation plans for multiple disposal sites and receiving locations, lot management based on sediment regulations of each municipality, and preparation of survey reports for submission to administrative agencies.