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Purpose

 

The EQUIS.GEOTECH_UNCONF_COMP_READINGS function queries the Unconfined Compression (UC) test reading parameters stored in the DT_GEO_RESULT and DT_GEO_TEST_PARAMETER tables where DT_GEO_TEST.TEST_TYPE = ‘Unconf_Compression’ and ‘UnconfComp_Readings’. Based on the available data, the function calculates other result values.

 

The EQUIS.GEOTECH_UNCONF_COMP_READINGS function creates a function report called Geotechnical Unconfined Compression Data. The function output data is used in the Geotechnical Unconfined Compression report.

 

 

 

 

Function Details

 

This function follows two methods of reporting Stress, Strain and other result values based on the data available in the database.

 

Method 1 – If a user has entered the Stress and Strain results of a UC test into DT_GEO_RESULT.GEO_RESULT_CODE = ‘UNC_Stress’ and ‘UNC_Strain’ (where DT_GEO_TEST.TEST_TYPE = 'UnconfComp_Readings’), then the function will use the Stress and Strain results in the database. The function will query and report other test results entered in the database, such as strain rate, strength, failure strain, etc. When applicable, the function will use the available data to calculate other associated result parameters (e.g., undrained shear strength, etc.).

 

Method 2 – If data were loaded through a Data Instrumentation file (e.g., GeoTac), then only the Load Reading (DT_GEO_RESULT.GEO_RESULT_CODE = ‘UNC_Load’) and Deflection Reading (DT_GEO_RESULT.GEO_RESULT_CODE = ‘UNC_Deflection’) data are entered into the database. The function uses this information to calculate the Stress, Strain, and other results parameters (e.g., strain rate, failure strain, undrained shear strength, etc.) upon reporting.

 

The function calculates the results in the unit specified in DT_TASK_PARAMETER.PARAM_CODE = ‘comp_strength_units’. The function supports the following units:

•pounds per square foot (PSF),

•pounds per square inch (PSI),

•tons per square foot (TSF), and

•megapascals (MPa).

 

If there are multiple tasks in a facility, the function will check the DT_TASK_PARAMETER.PARAM_CODE = ‘comp_strength_units’ associated with the source sample’s task.

 

If the user has submitted Stress and Strain values directly to the DT_GEO_RESULT table (Method 1), the function will check the DT_GEO_RESULT.RESULT_UNIT associated with DT_GEO_RESULT.GEO_RESULT_CODE = ‘UNC_Stress’ and convert the output results based on the unit defined in DT_TASK_PARAMETER.PARAM_CODE = ‘comp_strength_units’.

 

 

Function Outputs – UC Test Parameters

 

The following table lists the UC test parameters that the EQUIS.GEOTECH_UNCONF_COMP_READINGS function outputs, including function field name, associated unit, and equation used (when applicable).