CStab

Developed by Rob van Putten | breinbaasnl@gmail.com | leveelogic@gmail.com

What it is

CStab is a calculation kernel for slope stabiility assessments. By kernel I mean that there will never be user interface code in this repo but only a way to send a model to the programme which then returns the slope stability safety factor.

Since this programme is meant to be a calculation kernel for my LeveeLogic web application I expect a certain input which consists of a json file with soil and geometry information. You can find an example of the input in this repo under the test path. JSON can easily be edited and -even better- is perfectly suitable to be used in web communication. A little more info on the used JSON file; the geometry is simply a collection of polygons with a certain soilcode. You can find examples in the soilpolygons section in the json file.

"soilpolygons": [
    {
        "points": [
            [
                15.0,
                0.0
            ],
            [
                17.0,
                2.0
            ],
            [
                20.0,
                2.0
            ],
            [
                20.0,
                0.0
            ]
        ],
        "soilcode": "clay"
    },
    ...
]

The soilcode refers to soil definitions in the soilcollection section.

"soilcollection": {
    "soils": [
        {
            "code": "preexcavated",
            "color": "#54575c",
            "y_dry": 14.0,
            "y_sat": 14.0,
            "cohesion": 2.0,
            "friction_angle": 20.0
        },
        ...
    ]
}

I also implemented a phreatic_line and bishop_search_grid section for additional required information. Note that for now you also have to add the surface_line in the json input file. In my case this is automatically generated out of the polygons in my web application but I will probably move that calculation to this calculation kernel.

You will also find some other input in the json file which simply is additional information that has been generated in the LeveeLogic web application for other processes.

The output will follow the next format;

{
    "x":23.5,
    "z":3.8,
    "r":7.5,
    "sf":0.978
}

Where x and z are the centre point of the Bishop circle, r is the radius and sf is the calculated safety factor.

Note if sf in the result is equal to 9999 this means that something went wrong during the calculation (for example, circles without intersections) or that invalid input was sent

Note that the input will probably change over time since I have ideas and changing requirements for my web application but the essence (JSON and polygons) will stay the same.

Note This program is free software. It comes without any warranty, to the extent permitted by applicable law. You can redistribute it and/or modify it under the terms of the GPLv3 license.

Todo

Currently not ready for release

Before release 0.1:

• main should accept argument of type string
• we now save an array of sf but we want the min(sf) with the xm, zm and radius of the circle as a result
• benchmark with dstability
• cleanup code (I will keep the couts for debugging purposes so that will not be cleaned up)
• improve code (check referencing etc.)
• num x, z and tangents lines should be part of the input, not constants
• error handling
• fix terminate called recursively error (missing soiltype -> should check for missing soiltypes BEFORE starting calculation, this will remove the bug)

Later:

• implement SHANSEP for undrained behaviour
• auto search grid
• optimize coordinate conversions if necessary (at initialization we use h2d and clipper, find out a way to avoid redundant conversions but only if this is a bottleneck which I doubt)
• surface calculation in c++ instead of demanding this is the json input (shouldn't be too hard with clipper2)
• Spencer model
• LiftVan model

Dependencies

CStab makes use of the following libraries;

• homog2d - homog2d, A single-file header-only C++ library dedicated to handling 2D lines, points and homographies (2D planar transformations), using (internally) homogeneous coordinates.
• clipper2 - clipper2, an open source freeware library (written in C++, C# and Delphi Pascal) that performs line and polygon clipping, and offsetting.
• rapidjson - rapidjson, A fast JSON parser/generator for C++ with both SAX/DOM style API

License

GPLv3 so publish the code if you use / enhance it.

Notes for myself

CMake using mingw

Windows cmake keeps trying to use VStudio, use cmake .. -G "MinGW Makefiles" to use MinGW instead

Testing as commandline programme

Argument to test as a commandline service;

• Windows OK

.\cstab.exe '{\"soilcollection\": {\"soils\": [{\"code\": \"preexcavated\", \"color\": \"#54575c\", \"y_dry\": 14.0, \"y_sat\": 14.0, \"cohesion\": 2.0, \"friction_angle\": 20.0}, {\"code\": \"unknown\", \"color\": \"#696969\", \"y_dry\": 14.0, \"y_sat\": 14.0, \"cohesion\": 2.0, \"friction_angle\": 20.0}, {\"code\": \"top_material\", \"color\": \"#696969\", \"y_dry\": 15.0, \"y_sat\": 15.0, \"cohesion\": 2.0, \"friction_angle\": 22.0}, {\"code\": \"bottom_material\", \"color\": \"#808080\", \"y_dry\": 17.0, \"y_sat\": 19.0, \"cohesion\": 0.0, \"friction_angle\": 30.0}, {\"code\": \"nl_veen\", \"color\": \"#786926\", \"y_dry\": 10.0, \"y_sat\": 10.0, \"cohesion\": 1.5, \"friction_angle\": 17.5}, {\"code\": \"nl_grof_zand\", \"color\": \"#faff00\", \"y_dry\": 19.0, \"y_sat\": 21.0, \"cohesion\": 0.0, \"friction_angle\": 35.0}, {\"code\": \"nl_middelgrof_zand\", \"color\": \"#e0e342\", \"y_dry\": 18.0, \"y_sat\": 20.0, \"cohesion\": 0.0, \"friction_angle\": 32.5}, {\"code\": \"nl_fijn_zand\", \"color\": \"#e6e876\", \"y_dry\": 17.0, \"y_sat\": 19.0, \"cohesion\": 0.0, \"friction_angle\": 30.0}, {\"code\": \"nl_kleiig_zand\", \"color\": \"#9fa12d\", \"y_dry\": 16.0, \"y_sat\": 18.0, \"cohesion\": 1.0, \"friction_angle\": 30.0}, {\"code\": \"nl_siltig_zand\", \"color\": \"#596b15\", \"y_dry\": 16.0, \"y_sat\": 17.0, \"cohesion\": 2.0, \"friction_angle\": 27.5}, {\"code\": \"nl_zandige_klei\", \"color\": \"#596b15\", \"y_dry\": 16.0, \"y_sat\": 16.0, \"cohesion\": 3.0, \"friction_angle\": 27.5}, {\"code\": \"nl_siltige_klei\", \"color\": \"#3c6318\", \"y_dry\": 15.0, \"y_sat\": 15.0, \"cohesion\": 4.0, \"friction_angle\": 25.0}, {\"code\": \"nl_klei\", \"color\": \"#39bf1b\", \"y_dry\": 15.0, \"y_sat\": 15.0, \"cohesion\": 5.0, \"friction_angle\": 25.0}, {\"code\": \"nl_venige_klei\", \"color\": \"#7d6b0f\", \"y_dry\": 14.0, \"y_sat\": 14.0, \"cohesion\": 3.0, \"friction_angle\": 20.0}, {\"code\": \"nl_humeuze_klei\", \"color\": \"#7d6b0f\", \"y_dry\": 14.0, \"y_sat\": 14.0, \"cohesion\": 3.0, \"friction_angle\": 20.0}, {\"code\": \"peat\", \"color\": \"#786926\", \"y_dry\": 10.0, \"y_sat\": 10.0, \"cohesion\": 1.5, \"friction_angle\": 17.5}, {\"code\": \"organic_clay\", \"color\": \"#a3de2f\", \"y_dry\": 14.0, \"y_sat\": 14.0, \"cohesion\": 2.0, \"friction_angle\": 20.0}, {\"code\": \"clay\", \"color\": \"#3c6318\", \"y_dry\": 15.0, \"y_sat\": 15.0, \"cohesion\": 5.0, \"friction_angle\": 25.0}, {\"code\": \"silty_clay\", \"color\": \"#596b15\", \"y_dry\": 15.0, \"y_sat\": 15.0, \"cohesion\": 3.0, \"friction_angle\": 25.0}, {\"code\": \"silty_sand\", \"color\": \"#9fa12d\", \"y_dry\": 16.0, \"y_sat\": 18.0, \"cohesion\": 1.0, \"friction_angle\": 27.5}, {\"code\": \"sand\", \"color\": \"#e6e876\", \"y_dry\": 17.0, \"y_sat\": 19.0, \"cohesion\": 0.0, \"friction_angle\": 30.0}, {\"code\": \"dense_sand\", \"color\": \"#fcf403\", \"y_dry\": 19.0, \"y_sat\": 21.0, \"cohesion\": 0.0, \"friction_angle\": 35.0}], \"aliases\": {}}, \"soilprofile2\": {\"soilpolygons\": [{\"points\": [[15.0, 0.0], [17.0, 2.0], [20.0, 2.0], [20.0, 0.0]], \"soilcode\": \"clay\"}, {\"points\": [[0.0, -2.0], [0.0, 0.0], [15.0, 0.0], [20.0, 0.0], [20.0, -0.5], [20.0, -1.8], [20.0, -2.0]], \"soilcode\": \"peat\"}, {\"points\": [[0.0, -5.0], [0.0, -2.0], [20.0, -2.0], [20.0, -4.5], [20.0, -5.0]], \"soilcode\": \"clay\"}, {\"points\": [[0.0, -6.2], [0.0, -5.0], [20.0, -5.0], [20.0, -6.2]], \"soilcode\": \"sand\"}, {\"points\": [[0.0, -8.5], [0.0, -6.2], [20.0, -6.2], [20.0, -6.4], [20.0, -8.5]], \"soilcode\": \"clay\"}, {\"points\": [[20.0, -15.0], [0.0, -15.0], [0.0, -8.5], [20.0, -8.5], [20.0, -8.9]], \"soilcode\": \"sand\"}, {\"points\": [[20.0, -0.5], [20.0, 0.0], [20.0, 2.0], [22.5, -0.5]], \"soilcode\": \"clay\"}, {\"points\": [[40.0, -1.8], [27.2, -1.8], [28.0, -1.0], [40.0, -1.0]], \"soilcode\": \"peat\"}, {\"points\": [[20.0, -1.8], [20.0, -0.5], [22.5, -0.5], [23.0, -1.0], [25.0, -1.0], [25.8, -1.8]], \"soilcode\": \"peat\"}, {\"points\": [[40.0, -4.5], [20.0, -4.5], [20.0, -2.0], [20.0, -1.8], [25.8, -1.8], [26.0, -2.0], [27.0, -2.0], [27.2, -1.8], [40.0, -1.8]], \"soilcode\": \"clay\"}, {\"points\": [[40.0, -6.4], [20.0, -6.4], [20.0, -6.2], [20.0, -5.0], [20.0, -4.5], [40.0, -4.5]], \"soilcode\": \"sand\"}, {\"points\": [[40.0, -8.9], [20.0, -8.9], [20.0, -8.5], [20.0, -6.4], [40.0, -6.4]], \"soilcode\": \"clay\"}, {\"points\": [[40.0, -8.9], [40.0, -15.0], [20.0, -15.0], [20.0, -8.9]], \"soilcode\": \"sand\"}], \"debug\": false}, \"characteristic_points\": [{\"l\": 17.0, \"point_type\": 20}, {\"l\": 17.5, \"point_type\": 30}, {\"l\": 19.5, \"point_type\": 31}, {\"l\": 25.0, \"point_type\": 50}, {\"l\": 28.0, \"point_type\": 51}, {\"l\": 23.0, \"point_type\": 40}], \"phreatic_line\": [[0.0, 1.6], [17.0, 1.6], [18.0, 1.6], [19.0, 0.6], [20.0, 0.5], [22.5, -0.6], [23.0, -1.1], [25.0, -1.3], [25.8, -1.3], [26.0, -1.3], [27.0, -1.3], [27.2, -1.3], [28.0, -1.3], [40.0, -1.3]], \"bishop_search_grid\": {\"left\": 23.5, \"bottom\": 3.8, \"width\": 10.0, \"height\": 5.0, \"num_x\": 10, \"num_z\": 10, \"num_tangent\": 5, \"tangents_top\": -1.7, \"tangents_bottom\": -3.7, \"minimum_slip_plane_length\": 3.0}, \"surface_line\": [[0.0, 0.0], [15.0, 0.0], [17.0, 2.0], [20.0, 2.0], [22.5, -0.5], [23.0, -1.0], [25.0, -1.0], [25.8, -1.8], [26.0, -2.0], [27.0, -2.0], [27.2, -1.8], [28.0, -1.0], [40.0, -1.0]]}'

• Faulty command Windows

.\cstab.exe '{\"soilcollection\": {\"0]]}'

• Missing soiltype Windows

.\cstab.exe '{\"soilcollection\": {\"soils\": [{\"code\": \"preexcavated\", \"color\": \"#54575c\", \"y_dry\": 14.0, \"y_sat\": 14.0, \"cohesion\": 2.0, \"friction_angle\": 20.0}, {\"code\": \"unknown\", \"color\": \"#696969\", \"y_dry\": 14.0, \"y_sat\": 14.0, \"cohesion\": 2.0, \"friction_angle\": 20.0}, {\"code\": \"top_material\", \"color\": \"#696969\", \"y_dry\": 15.0, \"y_sat\": 15.0, \"cohesion\": 2.0, \"friction_angle\": 22.0}, {\"code\": \"bottom_material\", \"color\": \"#808080\", \"y_dry\": 17.0, \"y_sat\": 19.0, \"cohesion\": 0.0, \"friction_angle\": 30.0}, {\"code\": \"nl_veen\", \"color\": \"#786926\", \"y_dry\": 10.0, \"y_sat\": 10.0, \"cohesion\": 1.5, \"friction_angle\": 17.5}, {\"code\": \"nl_grof_zand\", \"color\": \"#faff00\", \"y_dry\": 19.0, \"y_sat\": 21.0, \"cohesion\": 0.0, \"friction_angle\": 35.0}, {\"code\": \"nl_middelgrof_zand\", \"color\": \"#e0e342\", \"y_dry\": 18.0, \"y_sat\": 20.0, \"cohesion\": 0.0, \"friction_angle\": 32.5}, {\"code\": \"nl_fijn_zand\", \"color\": \"#e6e876\", \"y_dry\": 17.0, \"y_sat\": 19.0, \"cohesion\": 0.0, \"friction_angle\": 30.0}, {\"code\": \"nl_kleiig_zand\", \"color\": \"#9fa12d\", \"y_dry\": 16.0, \"y_sat\": 18.0, \"cohesion\": 1.0, \"friction_angle\": 30.0}, {\"code\": \"nl_siltig_zand\", \"color\": \"#596b15\", \"y_dry\": 16.0, \"y_sat\": 17.0, \"cohesion\": 2.0, \"friction_angle\": 27.5}, {\"code\": \"nl_zandige_klei\", \"color\": \"#596b15\", \"y_dry\": 16.0, \"y_sat\": 16.0, \"cohesion\": 3.0, \"friction_angle\": 27.5}, {\"code\": \"nl_siltige_klei\", \"color\": \"#3c6318\", \"y_dry\": 15.0, \"y_sat\": 15.0, \"cohesion\": 4.0, \"friction_angle\": 25.0}, {\"code\": \"nl_klei\", \"color\": \"#39bf1b\", \"y_dry\": 15.0, \"y_sat\": 15.0, \"cohesion\": 5.0, \"friction_angle\": 25.0}, {\"code\": \"nl_venige_klei\", \"color\": \"#7d6b0f\", \"y_dry\": 14.0, \"y_sat\": 14.0, \"cohesion\": 3.0, \"friction_angle\": 20.0}, {\"code\": \"nl_humeuze_klei\", \"color\": \"#7d6b0f\", \"y_dry\": 14.0, \"y_sat\": 14.0, \"cohesion\": 3.0, \"friction_angle\": 20.0}, {\"code\": \"peat\", \"color\": \"#786926\", \"y_dry\": 10.0, \"y_sat\": 10.0, \"cohesion\": 1.5, \"friction_angle\": 17.5}, {\"code\": \"organic_clay\", \"color\": \"#a3de2f\", \"y_dry\": 14.0, \"y_sat\": 14.0, \"cohesion\": 2.0, \"friction_angle\": 20.0}, {\"code\": \"silty_clay\", \"color\": \"#596b15\", \"y_dry\": 15.0, \"y_sat\": 15.0, \"cohesion\": 3.0, \"friction_angle\": 25.0}, {\"code\": \"silty_sand\", \"color\": \"#9fa12d\", \"y_dry\": 16.0, \"y_sat\": 18.0, \"cohesion\": 1.0, \"friction_angle\": 27.5}, {\"code\": \"sand\", \"color\": \"#e6e876\", \"y_dry\": 17.0, \"y_sat\": 19.0, \"cohesion\": 0.0, \"friction_angle\": 30.0}, {\"code\": \"dense_sand\", \"color\": \"#fcf403\", \"y_dry\": 19.0, \"y_sat\": 21.0, \"cohesion\": 0.0, \"friction_angle\": 35.0}], \"aliases\": {}}, \"soilprofile2\": {\"soilpolygons\": [{\"points\": [[15.0, 0.0], [17.0, 2.0], [20.0, 2.0], [20.0, 0.0]], \"soilcode\": \"clay\"}, {\"points\": [[0.0, -2.0], [0.0, 0.0], [15.0, 0.0], [20.0, 0.0], [20.0, -0.5], [20.0, -1.8], [20.0, -2.0]], \"soilcode\": \"peat\"}, {\"points\": [[0.0, -5.0], [0.0, -2.0], [20.0, -2.0], [20.0, -4.5], [20.0, -5.0]], \"soilcode\": \"clay\"}, {\"points\": [[0.0, -6.2], [0.0, -5.0], [20.0, -5.0], [20.0, -6.2]], \"soilcode\": \"sand\"}, {\"points\": [[0.0, -8.5], [0.0, -6.2], [20.0, -6.2], [20.0, -6.4], [20.0, -8.5]], \"soilcode\": \"clay\"}, {\"points\": [[20.0, -15.0], [0.0, -15.0], [0.0, -8.5], [20.0, -8.5], [20.0, -8.9]], \"soilcode\": \"sand\"}, {\"points\": [[20.0, -0.5], [20.0, 0.0], [20.0, 2.0], [22.5, -0.5]], \"soilcode\": \"clay\"}, {\"points\": [[40.0, -1.8], [27.2, -1.8], [28.0, -1.0], [40.0, -1.0]], \"soilcode\": \"peat\"}, {\"points\": [[20.0, -1.8], [20.0, -0.5], [22.5, -0.5], [23.0, -1.0], [25.0, -1.0], [25.8, -1.8]], \"soilcode\": \"peat\"}, {\"points\": [[40.0, -4.5], [20.0, -4.5], [20.0, -2.0], [20.0, -1.8], [25.8, -1.8], [26.0, -2.0], [27.0, -2.0], [27.2, -1.8], [40.0, -1.8]], \"soilcode\": \"clay\"}, {\"points\": [[40.0, -6.4], [20.0, -6.4], [20.0, -6.2], [20.0, -5.0], [20.0, -4.5], [40.0, -4.5]], \"soilcode\": \"sand\"}, {\"points\": [[40.0, -8.9], [20.0, -8.9], [20.0, -8.5], [20.0, -6.4], [40.0, -6.4]], \"soilcode\": \"clay\"}, {\"points\": [[40.0, -8.9], [40.0, -15.0], [20.0, -15.0], [20.0, -8.9]], \"soilcode\": \"sand\"}], \"debug\": false}, \"characteristic_points\": [{\"l\": 17.0, \"point_type\": 20}, {\"l\": 17.5, \"point_type\": 30}, {\"l\": 19.5, \"point_type\": 31}, {\"l\": 25.0, \"point_type\": 50}, {\"l\": 28.0, \"point_type\": 51}, {\"l\": 23.0, \"point_type\": 40}], \"phreatic_line\": [[0.0, 1.6], [17.0, 1.6], [18.0, 1.6], [19.0, 0.6], [20.0, 0.5], [22.5, -0.6], [23.0, -1.1], [25.0, -1.3], [25.8, -1.3], [26.0, -1.3], [27.0, -1.3], [27.2, -1.3], [28.0, -1.3], [40.0, -1.3]], \"bishop_search_grid\": {\"left\": 23.5, \"bottom\": 3.8, \"width\": 10.0, \"height\": 5.0, \"num_x\": 10, \"num_z\": 10, \"num_tangent\": 5, \"tangents_top\": -1.7, \"tangents_bottom\": -3.7, \"minimum_slip_plane_length\": 3.0}, \"surface_line\": [[0.0, 0.0], [15.0, 0.0], [17.0, 2.0], [20.0, 2.0], [22.5, -0.5], [23.0, -1.0], [25.0, -1.0], [25.8, -1.8], [26.0, -2.0], [27.0, -2.0], [27.2, -1.8], [28.0, -1.0], [40.0, -1.0]]}'

• Linux OK,

./cstab "{"soilcollection": {"soils": [{"code": "preexcavated", "color": "#54575c", "y_dry": 14.0, "y_sat": 14.0, "cohesion": 2.0, "friction_angle": 20.0}, {"code": "unknown", "color": "#696969", "y_dry": 14.0, "y_sat": 14.0, "cohesion": 2.0, "friction_angle": 20.0}, {"code": "top_material", "color": "#696969", "y_dry": 15.0, "y_sat": 15.0, "cohesion": 2.0, "friction_angle": 22.0}, {"code": "bottom_material", "color": "#808080", "y_dry": 17.0, "y_sat": 19.0, "cohesion": 0.0, "friction_angle": 30.0}, {"code": "nl_veen", "color": "#786926", "y_dry": 10.0, "y_sat": 10.0, "cohesion": 1.5, "friction_angle": 17.5}, {"code": "nl_grof_zand", "color": "#faff00", "y_dry": 19.0, "y_sat": 21.0, "cohesion": 0.0, "friction_angle": 35.0}, {"code": "nl_middelgrof_zand", "color": "#e0e342", "y_dry": 18.0, "y_sat": 20.0, "cohesion": 0.0, "friction_angle": 32.5}, {"code": "nl_fijn_zand", "color": "#e6e876", "y_dry": 17.0, "y_sat": 19.0, "cohesion": 0.0, "friction_angle": 30.0}, {"code": "nl_kleiig_zand", "color": "#9fa12d", "y_dry": 16.0, "y_sat": 18.0, "cohesion": 1.0, "friction_angle": 30.0}, {"code": "nl_siltig_zand", "color": "#596b15", "y_dry": 16.0, "y_sat": 17.0, "cohesion": 2.0, "friction_angle": 27.5}, {"code": "nl_zandige_klei", "color": "#596b15", "y_dry": 16.0, "y_sat": 16.0, "cohesion": 3.0, "friction_angle": 27.5}, {"code": "nl_siltige_klei", "color": "#3c6318", "y_dry": 15.0, "y_sat": 15.0, "cohesion": 4.0, "friction_angle": 25.0}, {"code": "nl_klei", "color": "#39bf1b", "y_dry": 15.0, "y_sat": 15.0, "cohesion": 5.0, "friction_angle": 25.0}, {"code": "nl_venige_klei", "color": "#7d6b0f", "y_dry": 14.0, "y_sat": 14.0, "cohesion": 3.0, "friction_angle": 20.0}, {"code": "nl_humeuze_klei", "color": "#7d6b0f", "y_dry": 14.0, "y_sat": 14.0, "cohesion": 3.0, "friction_angle": 20.0}, {"code": "peat", "color": "#786926", "y_dry": 10.0, "y_sat": 10.0, "cohesion": 1.5, "friction_angle": 17.5}, {"code": "organic_clay", "color": "#a3de2f", "y_dry": 14.0, "y_sat": 14.0, "cohesion": 2.0, "friction_angle": 20.0}, {"code": "clay", "color": "#3c6318", "y_dry": 15.0, "y_sat": 15.0, "cohesion": 5.0, "friction_angle": 25.0}, {"code": "silty_clay", "color": "#596b15", "y_dry": 15.0, "y_sat": 15.0, "cohesion": 3.0, "friction_angle": 25.0}, {"code": "silty_sand", "color": "#9fa12d", "y_dry": 16.0, "y_sat": 18.0, "cohesion": 1.0, "friction_angle": 27.5}, {"code": "sand", "color": "#e6e876", "y_dry": 17.0, "y_sat": 19.0, "cohesion": 0.0, "friction_angle": 30.0}, {"code": "dense_sand", "color": "#fcf403", "y_dry": 19.0, "y_sat": 21.0, "cohesion": 0.0, "friction_angle": 35.0}], "aliases": {}}, "soilprofile2": {"soilpolygons": [{"points": [[15.0, 0.0], [17.0, 2.0], [20.0, 2.0], [20.0, 0.0]], "soilcode": "clay"}, {"points": [[0.0, -2.0], [0.0, 0.0], [15.0, 0.0], [20.0, 0.0], [20.0, -0.5], [20.0, -1.8], [20.0, -2.0]], "soilcode": "peat"}, {"points": [[0.0, -5.0], [0.0, -2.0], [20.0, -2.0], [20.0, -4.5], [20.0, -5.0]], "soilcode": "clay"}, {"points": [[0.0, -6.2], [0.0, -5.0], [20.0, -5.0], [20.0, -6.2]], "soilcode": "sand"}, {"points": [[0.0, -8.5], [0.0, -6.2], [20.0, -6.2], [20.0, -6.4], [20.0, -8.5]], "soilcode": "clay"}, {"points": [[20.0, -15.0], [0.0, -15.0], [0.0, -8.5], [20.0, -8.5], [20.0, -8.9]], "soilcode": "sand"}, {"points": [[20.0, -0.5], [20.0, 0.0], [20.0, 2.0], [22.5, -0.5]], "soilcode": "clay"}, {"points": [[40.0, -1.8], [27.2, -1.8], [28.0, -1.0], [40.0, -1.0]], "soilcode": "peat"}, {"points": [[20.0, -1.8], [20.0, -0.5], [22.5, -0.5], [23.0, -1.0], [25.0, -1.0], [25.8, -1.8]], "soilcode": "peat"}, {"points": [[40.0, -4.5], [20.0, -4.5], [20.0, -2.0], [20.0, -1.8], [25.8, -1.8], [26.0, -2.0], [27.0, -2.0], [27.2, -1.8], [40.0, -1.8]], "soilcode": "clay"}, {"points": [[40.0, -6.4], [20.0, -6.4], [20.0, -6.2], [20.0, -5.0], [20.0, -4.5], [40.0, -4.5]], "soilcode": "sand"}, {"points": [[40.0, -8.9], [20.0, -8.9], [20.0, -8.5], [20.0, -6.4], [40.0, -6.4]], "soilcode": "clay"}, {"points": [[40.0, -8.9], [40.0, -15.0], [20.0, -15.0], [20.0, -8.9]], "soilcode": "sand"}], "debug": false}, "characteristic_points": [{"l": 17.0, "point_type": 20}, {"l": 17.5, "point_type": 30}, {"l": 19.5, "point_type": 31}, {"l": 25.0, "point_type": 50}, {"l": 28.0, "point_type": 51}, {"l": 23.0, "point_type": 40}], "phreatic_line": [[0.0, 1.6], [17.0, 1.6], [18.0, 1.6], [19.0, 0.6], [20.0, 0.5], [22.5, -0.6], [23.0, -1.1], [25.0, -1.3], [25.8, -1.3], [26.0, -1.3], [27.0, -1.3], [27.2, -1.3], [28.0, -1.3], [40.0, -1.3]], "bishop_search_grid": {"left": 23.5, "bottom": 3.8, "width": 10.0, "height": 5.0, "num_x": 10, "num_z": 10, "num_tangent": 5, "tangents_top": -1.7, "tangents_bottom": -3.7, "minimum_slip_plane_length": 3.0}, "surface_line": [[0.0, 0.0], [15.0, 0.0], [17.0, 2.0], [20.0, 2.0], [22.5, -0.5], [23.0, -1.0], [25.0, -1.0], [25.8, -1.8], [26.0, -2.0], [27.0, -2.0], [27.2, -1.8], [28.0, -1.0], [40.0, -1.0]]}"

• Faulty command Linux

./cstab.exe "{\"soilcollection\": {\"0]]}"

• Missing soiltype Linux

./cstab "{\"soilcollection\": {\"soils\": [{\"code\": \"preexcavated\", \"color\": \"#54575c\", \"y_dry\": 14.0, \"y_sat\": 14.0, \"cohesion\": 2.0, \"friction_angle\": 20.0}, {\"code\": \"unknown\", \"color\": \"#696969\", \"y_dry\": 14.0, \"y_sat\": 14.0, \"cohesion\": 2.0, \"friction_angle\": 20.0}, {\"code\": \"top_material\", \"color\": \"#696969\", \"y_dry\": 15.0, \"y_sat\": 15.0, \"cohesion\": 2.0, \"friction_angle\": 22.0}, {\"code\": \"bottom_material\", \"color\": \"#808080\", \"y_dry\": 17.0, \"y_sat\": 19.0, \"cohesion\": 0.0, \"friction_angle\": 30.0}, {\"code\": \"nl_veen\", \"color\": \"#786926\", \"y_dry\": 10.0, \"y_sat\": 10.0, \"cohesion\": 1.5, \"friction_angle\": 17.5}, {\"code\": \"nl_grof_zand\", \"color\": \"#faff00\", \"y_dry\": 19.0, \"y_sat\": 21.0, \"cohesion\": 0.0, \"friction_angle\": 35.0}, {\"code\": \"nl_middelgrof_zand\", \"color\": \"#e0e342\", \"y_dry\": 18.0, \"y_sat\": 20.0, \"cohesion\": 0.0, \"friction_angle\": 32.5}, {\"code\": \"nl_fijn_zand\", \"color\": \"#e6e876\", \"y_dry\": 17.0, \"y_sat\": 19.0, \"cohesion\": 0.0, \"friction_angle\": 30.0}, {\"code\": \"nl_kleiig_zand\", \"color\": \"#9fa12d\", \"y_dry\": 16.0, \"y_sat\": 18.0, \"cohesion\": 1.0, \"friction_angle\": 30.0}, {\"code\": \"nl_siltig_zand\", \"color\": \"#596b15\", \"y_dry\": 16.0, \"y_sat\": 17.0, \"cohesion\": 2.0, \"friction_angle\": 27.5}, {\"code\": \"nl_zandige_klei\", \"color\": \"#596b15\", \"y_dry\": 16.0, \"y_sat\": 16.0, \"cohesion\": 3.0, \"friction_angle\": 27.5}, {\"code\": \"nl_siltige_klei\", \"color\": \"#3c6318\", \"y_dry\": 15.0, \"y_sat\": 15.0, \"cohesion\": 4.0, \"friction_angle\": 25.0}, {\"code\": \"nl_klei\", \"color\": \"#39bf1b\", \"y_dry\": 15.0, \"y_sat\": 15.0, \"cohesion\": 5.0, \"friction_angle\": 25.0}, {\"code\": \"nl_venige_klei\", \"color\": \"#7d6b0f\", \"y_dry\": 14.0, \"y_sat\": 14.0, \"cohesion\": 3.0, \"friction_angle\": 20.0}, {\"code\": \"nl_humeuze_klei\", \"color\": \"#7d6b0f\", \"y_dry\": 14.0, \"y_sat\": 14.0, \"cohesion\": 3.0, \"friction_angle\": 20.0}, {\"code\": \"peat\", \"color\": \"#786926\", \"y_dry\": 10.0, \"y_sat\": 10.0, \"cohesion\": 1.5, \"friction_angle\": 17.5}, {\"code\": \"organic_clay\", \"color\": \"#a3de2f\", \"y_dry\": 14.0, \"y_sat\": 14.0, \"cohesion\": 2.0, \"friction_angle\": 20.0}, {\"code\": \"silty_clay\", \"color\": \"#596b15\", \"y_dry\": 15.0, \"y_sat\": 15.0, \"cohesion\": 3.0, \"friction_angle\": 25.0}, {\"code\": \"silty_sand\", \"color\": \"#9fa12d\", \"y_dry\": 16.0, \"y_sat\": 18.0, \"cohesion\": 1.0, \"friction_angle\": 27.5}, {\"code\": \"sand\", \"color\": \"#e6e876\", \"y_dry\": 17.0, \"y_sat\": 19.0, \"cohesion\": 0.0, \"friction_angle\": 30.0}, {\"code\": \"dense_sand\", \"color\": \"#fcf403\", \"y_dry\": 19.0, \"y_sat\": 21.0, \"cohesion\": 0.0, \"friction_angle\": 35.0}], \"aliases\": {}}, \"soilprofile2\": {\"soilpolygons\": [{\"points\": [[15.0, 0.0], [17.0, 2.0], [20.0, 2.0], [20.0, 0.0]], \"soilcode\": \"clay\"}, {\"points\": [[0.0, -2.0], [0.0, 0.0], [15.0, 0.0], [20.0, 0.0], [20.0, -0.5], [20.0, -1.8], [20.0, -2.0]], \"soilcode\": \"peat\"}, {\"points\": [[0.0, -5.0], [0.0, -2.0], [20.0, -2.0], [20.0, -4.5], [20.0, -5.0]], \"soilcode\": \"clay\"}, {\"points\": [[0.0, -6.2], [0.0, -5.0], [20.0, -5.0], [20.0, -6.2]], \"soilcode\": \"sand\"}, {\"points\": [[0.0, -8.5], [0.0, -6.2], [20.0, -6.2], [20.0, -6.4], [20.0, -8.5]], \"soilcode\": \"clay\"}, {\"points\": [[20.0, -15.0], [0.0, -15.0], [0.0, -8.5], [20.0, -8.5], [20.0, -8.9]], \"soilcode\": \"sand\"}, {\"points\": [[20.0, -0.5], [20.0, 0.0], [20.0, 2.0], [22.5, -0.5]], \"soilcode\": \"clay\"}, {\"points\": [[40.0, -1.8], [27.2, -1.8], [28.0, -1.0], [40.0, -1.0]], \"soilcode\": \"peat\"}, {\"points\": [[20.0, -1.8], [20.0, -0.5], [22.5, -0.5], [23.0, -1.0], [25.0, -1.0], [25.8, -1.8]], \"soilcode\": \"peat\"}, {\"points\": [[40.0, -4.5], [20.0, -4.5], [20.0, -2.0], [20.0, -1.8], [25.8, -1.8], [26.0, -2.0], [27.0, -2.0], [27.2, -1.8], [40.0, -1.8]], \"soilcode\": \"clay\"}, {\"points\": [[40.0, -6.4], [20.0, -6.4], [20.0, -6.2], [20.0, -5.0], [20.0, -4.5], [40.0, -4.5]], \"soilcode\": \"sand\"}, {\"points\": [[40.0, -8.9], [20.0, -8.9], [20.0, -8.5], [20.0, -6.4], [40.0, -6.4]], \"soilcode\": \"clay\"}, {\"points\": [[40.0, -8.9], [40.0, -15.0], [20.0, -15.0], [20.0, -8.9]], \"soilcode\": \"sand\"}], \"debug\": false}, \"characteristic_points\": [{\"l\": 17.0, \"point_type\": 20}, {\"l\": 17.5, \"point_type\": 30}, {\"l\": 19.5, \"point_type\": 31}, {\"l\": 25.0, \"point_type\": 50}, {\"l\": 28.0, \"point_type\": 51}, {\"l\": 23.0, \"point_type\": 40}], \"phreatic_line\": [[0.0, 1.6], [17.0, 1.6], [18.0, 1.6], [19.0, 0.6], [20.0, 0.5], [22.5, -0.6], [23.0, -1.1], [25.0, -1.3], [25.8, -1.3], [26.0, -1.3], [27.0, -1.3], [27.2, -1.3], [28.0, -1.3], [40.0, -1.3]], \"bishop_search_grid\": {\"left\": 23.5, \"bottom\": 3.8, \"width\": 10.0, \"height\": 5.0, \"num_x\": 10, \"num_z\": 10, \"num_tangent\": 5, \"tangents_top\": -1.7, \"tangents_bottom\": -3.7, \"minimum_slip_plane_length\": 3.0}, \"surface_line\": [[0.0, 0.0], [15.0, 0.0], [17.0, 2.0], [20.0, 2.0], [22.5, -0.5], [23.0, -1.0], [25.0, -1.0], [25.8, -1.8], [26.0, -2.0], [27.0, -2.0], [27.2, -1.8], [28.0, -1.0], [40.0, -1.0]]}"

Developer

Rob van Putten, breinbaasnl@gmail.com