DOCC Documentation and Object Context Compilation

This paper presents the MDO-GW concept, referred to in Polish as Moduł Dokumentacyjny Obiektu w rejonie Głębokich Wykopów. The proposed framework is an authorial documentation and data-organisation module developed for objects located in the vicinity of deep excavations, including buildings, engineering structures, road and railway elements, utility infrastructure, retaining or boundary structures and other technical objects that may be relevant to excavation-impact assessment.The MDO-GW framework is not a building susceptibility index and does not constitute a control-mode qualification procedure. It does not replace technical inventory, structural assessment, geotechnical design, numerical modelling, field monitoring or expert engineering judgement. Instead, it provides a structured and repeatable documentation module for collecting, organising, updating and presenting object-level information required for further engineering interpretation.The proposed Object Documentation Module may include information concerning object identification, object category, location, spatial relation to the excavation, structural characteristics, foundation system, technical condition, visible defects, photographic documentation, monitoring requirements, predicted or observed ground movements, data completeness, documentation status and links to broader assessment procedures.Compared with a simple identification card, MDO-GW is intended to operate as a more comprehensive documentation layer. It may be used at different levels of detail, depending on the purpose of the analysis and the availability of information. A screening level may be used for preliminary recognition of objects, a basic level may support typical technical inventory and photographic documentation, while an extended level may be used for sensitive, damaged, closely located or monitored objects requiring more detailed documentation.MDO-GW may also include a staged approach to documentation. The module may be prepared before the commencement of works as a baseline record, updated during excavation works, supplemented after completion of works or revised in emergency situations, for example after the appearance of new damage, exceedance of monitoring thresholds or submission of a damage claim. In this sense, MDO-GW should be treated as a living documentation module rather than a one-time static form.The MDO-GW framework is intended to support consistency in documentation, communication between project participants and preparation of input data for other assessment tools. It may provide object-level information for MKPO-GW/WPO, WNO/STII and MTK-GW. However, the assignment of control modes remains the role of the MTK-GW procedure, while MDO-GW remains a documentation and data-organisation framework.The MDO-GW framework should therefore be clearly distinguished from MTK-GW. MDO-GW answers the practical question: what information is available about a given object, how complete and reliable is that information, and how should it be organised for further use? MTK-GW answers a different question: what technical control mode should be assigned to that object? In this sense, MDO-GW may provide structured input data for MTK-GW, but it does not replace the control-mode assignment procedure.The MDO-GW module may support the organisation of object identification data, location data, construction and foundation information, technical condition records, visible defects, photographic documentation, monitoring assumptions and links to further assessment. It may also include a data-completeness level indicating whether the available information is limited, moderate, high or complete. This distinction is important because not every documented object is supported by the same amount or reliability of data.The proposed framework may be particularly useful in urban and linear infrastructure projects, where numerous buildings, engineering structures, roads, railway elements, utilities and other technical objects may be located near excavation works. In such cases, a repeatable object-level documentation format can improve transparency, comparison between objects and communication between designers, contractors, supervisors, monitoring teams, infrastructure administrators and other stakeholders.The MDO-GW framework may also include object categories and warning flags. Object categories help distinguish between residential buildings, public or service buildings, engineering structures, road or railway elements, utility infrastructure and other technical objects. Warning flags may indicate issues such as unknown foundation system, visible pre-existing damage, short distance from the excavation, sensitive object function or need for repeated observation. These flags are not intended to form an automatic risk index. Their role is to support documentation clarity and draw attention to aspects requiring engineering consideration.An important assumption of MDO-GW is the separation of factual documentation from engineering interpretation. The description of a crack, moisture mark, deformation or local damage is a documentation record. The determination of its cause requires separate technical assessment, monitoring interpretation or expert judgement. This distinction reduces the risk of treating the module as an automatic damage-causation tool.MDO-GW may complement broader authorial assessment frameworks. MKPO-GW/WPO supports the multi-criteria assessment of building susceptibility to deep excavation impact. WNO/STII supports the interpretation of settlement-trough morphology and irregularity. MTK-GW supports the assignment of adjacent structures to technical control modes T0–T4. MDO-GW provides the documentation layer in which object-level information is collected, standardised and organised for possible use in these procedures.The proposed framework is conceptual and operational in character. It should not be treated as a numerical safety verification method, an automatic classification algorithm or a substitute for detailed technical assessment. The interpretation of the information collected in the module should always consider engineering judgement, available documentation, field observations, monitoring results, project-specific requirements and the limitations of the available data.The original contribution of the MDO-GW concept lies in the structured organisation of object-level documentation for structures and technical objects adjacent to deep excavations. The framework does not claim originality of general engineering activities such as technical inventory, photographic documentation, monitoring or condition assessment. Its authorial contribution consists in combining these elements into a dedicated Object Documentation Module linked with deep excavation impact assessment and with other authorial procedures supporting susceptibility assessment, settlement-trough interpretation and control-mode qualification.In this sense, MDO-GW provides a documentation layer between field inventory and broader engineering interpretation. It helps ensure that object-related data are collected in a repeatable, transparent, traceable and useful format.MDO-GW Method — Literature and Methodological ContextThe proposed MDO-GW framework is positioned in relation to engineering practice concerning the protection of structures and technical objects adjacent to deep excavations. This practice includes technical inventory, photographic documentation, assessment of existing condition, identification of visible defects, monitoring assumptions, distance-based influence zones and interpretation of excavation impact on neighbouring objects.In deep excavation projects, object-level information is often collected from different sources, including field inspection, design documentation, archival records, photographs, monitoring assumptions, geodetic measurements and communication with project stakeholders. However, these data are not always organised in a consistent and traceable format that can be easily used in later assessment, monitoring planning, re-evaluation or control-mode qualification.The MDO-GW framework responds to this practical documentation need by proposing a structured Object Documentation Module. The module is intended to organise information concerning the object, its category, location, structural characteristics, foundation system, technical condition, visible damage, monitoring requirements, documentation status, data completeness and links to broader assessment procedures. MDO-GW Method — References[1] Kotlicki, W., Łukasik, S., Godlewski, T., Bogusz, W. (2020). Ochrona zabudowy w sąsiedztwie głębokich wykopów. Wytyczne. Warszawa: Instytut Techniki Budowlanej.[2] Wysokiński, L., Kotlicki, W. (2002). Ochrona zabudowy w sąsiedztwie głębokich wykopów. Instrukcja ITB nr 376/2002. Warszawa: Instytut Techniki Budowlanej.[3] PN-EN 1997-1:2008. Eurokod 7: Projektowanie geotechniczne. Część 1: Zasady ogólne.[4] PN-EN 1997-2:2009. Eurokod 7: Projektowanie geotechniczne. Część 2: Rozpoznanie i badanie podłoża gruntowego.[5] PN-EN 1990:2004. Eurokod: Podstawy projektowania konstrukcji.[6] ISO 13822:2010. 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