Use of the Distinct Element Method as a Tool to Detect Stability Problems in Deep Spillway Excavations
This paper describes a study to determine the stability of rock excavations in the La Yesca spillway channel using numerical analysis. The results of the analysis led to implementing important changes in the original conception of the spillway (reorientation, channel geometry and length) in order to...
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| Format: | Article |
| Language: | English |
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Instituto Mexicano de Tecnología del Agua
2014-07-01
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| Series: | Tecnología y ciencias del agua |
| Subjects: | |
| Online Access: | https://www.revistatyca.org.mx/ojs/index.php/tyca/article/view/460 |
| _version_ | 1797391094566092800 |
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| author | Eduardo Botero-Jaramillo Miguel P. Romo Bogart Méndez Humberto Marengo |
| author_facet | Eduardo Botero-Jaramillo Miguel P. Romo Bogart Méndez Humberto Marengo |
| author_sort | Eduardo Botero-Jaramillo |
| collection | DOAJ |
| description | This paper describes a study to determine the stability of rock excavations in the La Yesca spillway channel using numerical analysis. The results of the analysis led to implementing important changes in the original conception of the spillway (reorientation, channel geometry and length) in order to ensure rock slope stability under static and seismic conditions. This paper describes the 3D numerical modeling of a 280 m high slope (corresponding to the original project) cut in a rock mass having complex geological formations. The modeling was carried out to evaluate both the static and dynamic stability of the projected rock slope. The construction site presented complex geological features such as faults and dikes as well as several geological formations resulting from varying qualities and fracture conditions. Available field data made it possible to incorporate the most important geological and topographical features. The spillway excavation was simulated using four stages. The effect of blast-induced damage and stress relaxation on the rock mass was also taken into account. After the simulation of the excavation process was completed, the seismic motion design for the La Yesca dam was input. These dynamic analysis simulated the three-dimensional behavior of the spillway which enabled identifying possible block instabilities, thereby determining whether to stabilize them or modify the original spillway layout. |
| first_indexed | 2024-03-08T23:27:49Z |
| format | Article |
| id | doaj.art-873c96d88f3249f2a9ae11fe8b586a48 |
| institution | Directory Open Access Journal |
| issn | 0187-8336 2007-2422 |
| language | English |
| last_indexed | 2024-03-08T23:27:49Z |
| publishDate | 2014-07-01 |
| publisher | Instituto Mexicano de Tecnología del Agua |
| record_format | Article |
| series | Tecnología y ciencias del agua |
| spelling | doaj.art-873c96d88f3249f2a9ae11fe8b586a482023-12-14T17:12:59ZengInstituto Mexicano de Tecnología del AguaTecnología y ciencias del agua0187-83362007-24222014-07-0154187196400Use of the Distinct Element Method as a Tool to Detect Stability Problems in Deep Spillway ExcavationsEduardo Botero-Jaramillo0Miguel P. Romo1Bogart Méndez2Humberto Marengo3Universidad Nacional Autónoma de MéxicoUniversidad Nacional Autónoma de MéxicoUniversidad Nacional Autónoma de MéxicoComisión Federal de ElectricidadThis paper describes a study to determine the stability of rock excavations in the La Yesca spillway channel using numerical analysis. The results of the analysis led to implementing important changes in the original conception of the spillway (reorientation, channel geometry and length) in order to ensure rock slope stability under static and seismic conditions. This paper describes the 3D numerical modeling of a 280 m high slope (corresponding to the original project) cut in a rock mass having complex geological formations. The modeling was carried out to evaluate both the static and dynamic stability of the projected rock slope. The construction site presented complex geological features such as faults and dikes as well as several geological formations resulting from varying qualities and fracture conditions. Available field data made it possible to incorporate the most important geological and topographical features. The spillway excavation was simulated using four stages. The effect of blast-induced damage and stress relaxation on the rock mass was also taken into account. After the simulation of the excavation process was completed, the seismic motion design for the La Yesca dam was input. These dynamic analysis simulated the three-dimensional behavior of the spillway which enabled identifying possible block instabilities, thereby determining whether to stabilize them or modify the original spillway layout.https://www.revistatyca.org.mx/ojs/index.php/tyca/article/view/460distinct element method, seismic analysis, slope stability, spillway problems |
| spellingShingle | Eduardo Botero-Jaramillo Miguel P. Romo Bogart Méndez Humberto Marengo Use of the Distinct Element Method as a Tool to Detect Stability Problems in Deep Spillway Excavations Tecnología y ciencias del agua distinct element method, seismic analysis, slope stability, spillway problems |
| title | Use of the Distinct Element Method as a Tool to Detect Stability Problems in Deep Spillway Excavations |
| title_full | Use of the Distinct Element Method as a Tool to Detect Stability Problems in Deep Spillway Excavations |
| title_fullStr | Use of the Distinct Element Method as a Tool to Detect Stability Problems in Deep Spillway Excavations |
| title_full_unstemmed | Use of the Distinct Element Method as a Tool to Detect Stability Problems in Deep Spillway Excavations |
| title_short | Use of the Distinct Element Method as a Tool to Detect Stability Problems in Deep Spillway Excavations |
| title_sort | use of the distinct element method as a tool to detect stability problems in deep spillway excavations |
| topic | distinct element method, seismic analysis, slope stability, spillway problems |
| url | https://www.revistatyca.org.mx/ojs/index.php/tyca/article/view/460 |
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