Quality improvement by application of a revised standard – feasibility studies on 2500 soundings
CPT is a geotechnical investigation method that, depending on the geology, has been proved to be an essential tool to establish the Geotechnical Design Model. However, doubt has been raised about the quality of the data. Hence, the feasibility to use data from CPT to evaluate reliable parameters fo...
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| Format: | Article |
| Language: | English |
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CTU Central Library
2023-12-01
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| Series: | Acta Polytechnica CTU Proceedings |
| Subjects: | |
| Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/9550 |
| _version_ | 1797364518580387840 |
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| author | Håkan Garin Gunilla Franzén |
| author_facet | Håkan Garin Gunilla Franzén |
| author_sort | Håkan Garin |
| collection | DOAJ |
| description |
CPT is a geotechnical investigation method that, depending on the geology, has been proved to be an essential tool to establish the Geotechnical Design Model. However, doubt has been raised about the quality of the data. Hence, the feasibility to use data from CPT to evaluate reliable parameters for the Geotechnical Design Model also needs investigation. Currently, the international standard EN ISO 22476-1 [1] is being revised, and the revised version will be published in winter 2022. It will include new requirements related to quality parameters such as zero stability, zero-shift, temperature, and pore pressure response. In addition, there will be updated requirements related to the calibration of the cone penetrometer. All this is to improve the quality of the CPT data, thereby increasing the reliability of parameters evaluated from CPT. This paper presents a feasibility study. It compares the zero-shift variation depending on the type of cone penetrometer, the operator, and the geology. More than 2 500 soundings from Sweden, Norway and Finland were the basis for this comparison. The results indicate that the data quality is strongly linked to the type of cone penetrometer, its calibration, and the management of the cone penetrometer in the field.
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| first_indexed | 2024-03-08T16:37:25Z |
| format | Article |
| id | doaj.art-a0debdcf3e944a4595bc95a9880d9f79 |
| institution | Directory Open Access Journal |
| issn | 2336-5382 |
| language | English |
| last_indexed | 2024-03-08T16:37:25Z |
| publishDate | 2023-12-01 |
| publisher | CTU Central Library |
| record_format | Article |
| series | Acta Polytechnica CTU Proceedings |
| spelling | doaj.art-a0debdcf3e944a4595bc95a9880d9f792024-01-05T15:17:59ZengCTU Central LibraryActa Polytechnica CTU Proceedings2336-53822023-12-014510.14311/APP.2023.45.0039Quality improvement by application of a revised standard – feasibility studies on 2500 soundingsHåkan Garin0Gunilla Franzén1President Swedish Geotechnical Society, Hällingsjövägen 320, SE-434 97 Kungsbacka, SwedenPresident Swedish Geotechnical Society, Hällingsjövägen 320, SE-434 97 Kungsbacka, Sweden CPT is a geotechnical investigation method that, depending on the geology, has been proved to be an essential tool to establish the Geotechnical Design Model. However, doubt has been raised about the quality of the data. Hence, the feasibility to use data from CPT to evaluate reliable parameters for the Geotechnical Design Model also needs investigation. Currently, the international standard EN ISO 22476-1 [1] is being revised, and the revised version will be published in winter 2022. It will include new requirements related to quality parameters such as zero stability, zero-shift, temperature, and pore pressure response. In addition, there will be updated requirements related to the calibration of the cone penetrometer. All this is to improve the quality of the CPT data, thereby increasing the reliability of parameters evaluated from CPT. This paper presents a feasibility study. It compares the zero-shift variation depending on the type of cone penetrometer, the operator, and the geology. More than 2 500 soundings from Sweden, Norway and Finland were the basis for this comparison. The results indicate that the data quality is strongly linked to the type of cone penetrometer, its calibration, and the management of the cone penetrometer in the field. https://ojs.cvut.cz/ojs/index.php/APP/article/view/9550CPTqualityzero-shift |
| spellingShingle | Håkan Garin Gunilla Franzén Quality improvement by application of a revised standard – feasibility studies on 2500 soundings Acta Polytechnica CTU Proceedings CPT quality zero-shift |
| title | Quality improvement by application of a revised standard – feasibility studies on 2500 soundings |
| title_full | Quality improvement by application of a revised standard – feasibility studies on 2500 soundings |
| title_fullStr | Quality improvement by application of a revised standard – feasibility studies on 2500 soundings |
| title_full_unstemmed | Quality improvement by application of a revised standard – feasibility studies on 2500 soundings |
| title_short | Quality improvement by application of a revised standard – feasibility studies on 2500 soundings |
| title_sort | quality improvement by application of a revised standard feasibility studies on 2500 soundings |
| topic | CPT quality zero-shift |
| url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/9550 |
| work_keys_str_mv | AT hakangarin qualityimprovementbyapplicationofarevisedstandardfeasibilitystudieson2500soundings AT gunillafranzen qualityimprovementbyapplicationofarevisedstandardfeasibilitystudieson2500soundings |