Everything about Wave overtopping experiment bare clay section 1-1
id;activity_name;activity_type;activity_descriptor;breaching;animal;erosion;temporary;levee_survey;prolonged;start_date;end_date;date_length_day;date_length_hour;date_other;levee_stretch;location_x;location_y;location_z;location_descriptor;location_other;objectif_important;objectif_knowledge;pre_condition;act_des;monitoring_process;monitoring_reasoning;limits;during_activity;post_activity;activity_result;results_conc;knowledge_desc;ref_links;wrk_1;wrk_2;wrk_3;key_info
100;Wave overtopping experiment bare clay section 1-1;Strength test;Right before the start of a test on a section, the upper 20 cm (including the grass sod) will be removed over a distance of 3.5 m long and 4m wide. This section was located in between 15 and 18.5m downstream of the outflow opening of the overtopping simulator and subjected to regular waves to be used in the calibration of an erosion relation;False;False;True;False;False;False;2022-02-01 14:14:00;2022-02-01 14:14:00;1;4.0;150 waves were released;XI;139727.0;226774.0;;15-18.5 m downstream of the outflow opening of the wave overtopping simulator located on the dike crest. The clay was removed on the landside slope. The bottom end of the test section is approximately 1m from the landside toe.;;these tests are aimed at measuring the erosion rate of the clay layer underneath a grass sod on the landside slope of a levee, in order to enable the determination of the residual strength of the levee after failure of the grass. The results can be used to test and validate erosion models – both current models and future models.;Little is yet known on the erosion resistance of clay under wave overtopping, and how the results of small scale erosion tests could be used to determine the erosive behaviour of clay subjected to real life loads.;The grass was removed over a section of 3.5m x 4m wide, and a depth of 20 cm using a crane.;At the lower section, the test starts with 10 waves of 500 l/m, applying 60 l/s/m, to make things a bit easier in the field.  In steps of 500 l/m this will be increased to 3000 l/m, next the maximum of 3400 l/m, followed by 3000 l/m decreasing in steps of 500 l/m to the minimum of 500 l/m. In total: 13 steps of 10 waves each;10 GoPro's for photogrammetry for monitoring the difference in erosion depth between waves and for determining the front velocities of waves;To be able to derive an erosion relation;;;;;;Erosion relation for wave overtopping on clay;;True;False;False;


All DATA concerning Wave overtopping experiment bare clay section 1-1
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All EQUIPMENTS concerning Wave overtopping experiment bare clay section 1-1
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- Wave overtopping simulator including pumps, pipelines, cranes for moving, etc;Wave overtopping simulator was used to offer a proper comparison against the erosion resistance of grass and as it is currently the most viable way of simulator up to real loading conditions in situ


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