Li, Yanrong ; Guan, Fanfan ; Su, He ; Aydin, Adnan ; Beroya-Eitner, Mary Antonette ; Zachert, Hauke (2020)
A New Direct Tension Test Method for Soils and Soft Rocks.
In: Geotechnical Testing Journal, 2020, 43 (6)
doi: 10.25534/tuprints-00017374
Article, Secondary publication, Publisher's Version
Abstract
Tensile strength plays a crucial role in many engineering activities involving soils and soft rocks. Currently, several methods for tensile strength determination exist, the most common of which include the direct tension method, Brazilian test, ring test, axial fracturing test, bending test, and hydraulic fracturing test. However, outstanding problems associated with these methods, e.g., undesirable eccentric forces and damage of specimen ends, significantly affect obtained tensile strength values. To overcome these problems, we propose an alternative direct tension test method together with the newly developed apparatus. The proposed method uses an annular specimen that is tension-loaded on the inner hole. The method was evaluated through a series of tests on undisturbed soil and remolded gypsum-sand mixture specimens. For validation, comparison of results between the proposed method and the International Society for Rock Mechanics (ISRM)-suggested method was performed. Based on the results of the experimental program, the proposed method is considered more capable of and more suitable for determining the tensile strength of soils and soft rocks than the ISRM-suggested method.
| Item Type: | Article |
|---|---|
| Erschienen: | 2020 |
| Creators: | Li, Yanrong ; Guan, Fanfan ; Su, He ; Aydin, Adnan ; Beroya-Eitner, Mary Antonette ; Zachert, Hauke |
| Type of entry: | Secondary publication |
| Title: | A New Direct Tension Test Method for Soils and Soft Rocks |
| Language: | English |
| Date: | 2020 |
| Year of primary publication: | 2020 |
| Publisher: | ASTM |
| Journal or Publication Title: | Geotechnical Testing Journal |
| Volume of the journal: | 43 |
| Issue Number: | 6 |
| DOI: | 10.25534/tuprints-00017374 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/17374 |
| Corresponding Links: | |
| Origin: | Secondary publication service |
| Abstract: | Tensile strength plays a crucial role in many engineering activities involving soils and soft rocks. Currently, several methods for tensile strength determination exist, the most common of which include the direct tension method, Brazilian test, ring test, axial fracturing test, bending test, and hydraulic fracturing test. However, outstanding problems associated with these methods, e.g., undesirable eccentric forces and damage of specimen ends, significantly affect obtained tensile strength values. To overcome these problems, we propose an alternative direct tension test method together with the newly developed apparatus. The proposed method uses an annular specimen that is tension-loaded on the inner hole. The method was evaluated through a series of tests on undisturbed soil and remolded gypsum-sand mixture specimens. For validation, comparison of results between the proposed method and the International Society for Rock Mechanics (ISRM)-suggested method was performed. Based on the results of the experimental program, the proposed method is considered more capable of and more suitable for determining the tensile strength of soils and soft rocks than the ISRM-suggested method. |
| Status: | Publisher's Version |
| URN: | urn:nbn:de:tuda-tuprints-173747 |
| Classification DDC: | 500 Naturwissenschaften und Mathematik > 550 Geowissenschaften |
| Divisions: | 13 Department of Civil and Environmental Engineering Sciences 13 Department of Civil and Environmental Engineering Sciences > Institute of Geotechnics |
| Date Deposited: | 18 Dec 2020 08:36 |
| Last Modified: | 22 Dec 2020 11:11 |
| PPN: | |
| Corresponding Links: | |
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