Ground Investigation | Ground Guarantee Examination Compliance Measurement and Analysis Method at the Site of a Demolished Wooden Apartment
Assess the risk of uneven ground at demolition sites using a rich database and rigorous judgment from qualified professionals, ensuring a smooth process for ground guarantee reviews and confirmation applications.
This technology is a ground diagnosis service that establishes reliable quality evidence and enables smooth application for confirmation and ground guarantee passage at the site of a wooden apartment demolition, where uneven ground due to the removal of old buildings is a concern. At demolition sites, there are worries about future settlement defects due to underground residual materials and uneven backfill density, making objective data that satisfies third-party organizations highly sought after. This measurement method utilizes not only penetration test data from multiple points but also the neighboring ground information from our proprietary database "GEODAS," which boasts an analysis record of 100,000 cases annually. By comparing and correlating the surrounding topographical and geological data with on-site measurement data, we conduct a highly advanced analysis of the unique deformation behavior and the spread of uneven strata specific to the demolition site. Furthermore, qualified staff, such as residential ground chief engineers, rigorously evaluate using a unique three-item, eight-factor standard, eliminating underestimation or misjudgment of data. We issue a highly reliable ground survey judgment report with clear grounds, fully supporting business owners and builders in meeting guarantee examination standards and ensuring safe apartment construction.
basic information
This survey method is based on the screw weight penetration test (SWS test) that conforms to JIS A 1221, and will be conducted by combining supplementary tests tailored to the site conditions as necessary. Equipment calibrated based on the internal management system (ISO 9001) will be used, and qualified personnel within the company (residential foundation engineers and geological survey engineers) will manage everything from on-site measurements to analysis and judgment consistently. In evaluating the demolition site, in addition to calculating the allowable bearing capacity (with options for residential product association recommended methods, notification methods, academic society methods, etc.), we will also conduct subsidence layer rank determination and deformation angle calculation between measurement points, and issue a bound report as an objective quality record.
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Applications/Examples of results
It is used in situations where it is desired to smoothly pass the underwriting examination of ground guarantee organizations for newly constructed wooden apartments and rental housing mainly built on demolition sites. It can be utilized to prevent accidents caused by uneven ground after demolition and the risk of post-compensation occurrences, ensuring reliable ground evaluation evidence. In addition to being used by real estate companies, architectural design offices, and construction companies as explanatory materials for structural calculation conformity and as attached documents during application for confirmation, it also serves as an effective consulting tool to objectively demonstrate and explain the safety of the ground to clients and investors.
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