gInt allows geotechnical engineers to streamline processes with accessible, interoperable data, for subsurface reporting for soils, borelogs, lab tests, and more. It is designed to integrate with the Bentley CONNECTed Data Model: the dgn file. Simply reference in gInt files into your Project Container Files and all users of project files have access to the gInt data.
PLAXIS and PLAXIS LE are sophisticated geotechnical analysis products. Both output their spatial data in Bentley's CONNECTed Data Model: the dgn. Simply reference in gInt files into your Project Container Files and all users of project files have access to the geotechnical model.
Note that in all cases, in order to seamlessly integrate any data into your OpenRoads projects, all data source files must have Geospatial Coordinate Systems attached to the files that are consistent with those used to collect the data. If relative coordinate systems (0,0,0 or arbitrary) then there needs to be manual location of the data.