Step 4: Geological & Geotechnical Mapping

    Intro

    Rock Mapper allows you to directly draw onto face photographs and 3D LiDAR scan to highlight and capture geological features. Moreover, it has a dedicated tool for Rock Mass Assessment using the Q System (after Barton et al. 1974).

    šŸ‘‰ Geological Mapping

    Tap onto the annotation layer to select it (Contacts,Ā Structures,Ā POIĀ orĀ Scribbles) & then simply draw onto the face photograph or LiDAR scan using the Apple Pencil Pro (recommended) or finger.


    ā„¹ļøĀ Please readĀ this articleĀ to learn more about setting up your own annotation layers.Ā 


    ForĀ georeferencedĀ face photographs and LiDAR scans, 3D coordinates of all drawn lines & points are automatically computed in the background and stored in theĀ [FaceID]_mapping.csv / dxf andĀ [FaceID]_mapping_3D.csv / dxfĀ file.




    In order to record structural measurements use the dedicated Structural Measurement Tool by tapping the strike-dip icon in the upper right. To configure structural measurements and set the convention (such as dip/dip dir OR dip/strike), go to Settings > Mapping > Structures (more details here).



    ā„¹ļø Use the slider to change Dip and Dip Dir values or directly enter the them into the Dip and Dip Dir input boxes. If using an Apple Pencil, then you can handwrite into any of these input boxes and it will automatically be transformed into typed text.Ā 

    On page 2 of the Structural Measurement window you can find Structure Attributes. They are freely configurable in the settings (see details here). To get to page 2 either swipe left within the window or tap the two points at the bottom of the Structural Measurement window.


    ā„¹ļøĀ Everything you draw in Rock Mapper by hand will be stored in a digital file.


    šŸ‘‰Ā Geotechnical Mapping / Rock Mass Assessment

    Rock Mapper has a dedicated tool for Geotechnical Assessments based on the Q System (Barton et al 1974). It can be accessed via the Q button in the lower right corner on the Mapping page. For more details about the Q system, pleaseĀ download the freely available Q System Handbook from the Norwegian Geotechnical Institute (NGI).




    Rock Mapper allows to configure individual Rock Mass Zones. For each Rock Mass Zone, a Q value is automatically calculated based on the selected values for RQD, JR, Jw, Jn, Ja and SRF which are presented to the user in pre-configured lists.Ā 

    Additionally, one or more Rock Support Classifications can be configured in the settings to match your requirements.Ā 


    For any other Q System related information, users can configure their own report fields (as type text field, single select pick list and multi-select pick list). Go to Settings > Q System > Q Report Fields.



    Published