the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
| 21 Nov 2023
Dynamic Response of Pile-Slab Retaining Wall Structure under Rockfall Impact
Abstract. The numerical experiments investigate the dynamic response of a pile-slab retaining wall under the impact of rockfall. Firstly, a full-scale numerical model of a four-span pile-slab retaining wall satisfying specification requirements is established. Secondly, the numerical experiments investigate the dynamic response of a pile-slab retaining wall under different impact centers and velocities. Finally, the maximum impact energy that the structure can resist is predicted. Results reveal that: (1) During the impact process, the stress, strain, and concrete damage of the structure gradually spread from the impact center to the entire structure and ultimately result in permanent deformation; (2) The lateral displacement of pile at ground surface and the number of damage failure units under the pile as the impact center is greater than those under the slab as impact center. It shows that the impact position has a significant effect on the stability of the structure.(3) The impact force, interaction force, lateral displacement of pile at ground surface, and concrete damage is increased with the increase of impact velocity. Under pile as the impact center (slab as the impact center), when the velocity increases from 15 m/s to 30 m/s, the impact force increases by 1.42, 1.91, and 2.41 times (1.41, 1.90, and 2.41 times), the interaction force increases by 1.25, 1.47, and 1.68 times (1.24, 1.47, and 1.68 times), and the maximum lateral displacement of pile at ground surface increases by 1.57, 2.24, and 3 times (1.55, 2.23, and 3 times). (4) Utilizing this relationship between the impact velocity and the maximum lateral displacement of pile at ground surface, the estimated maximum impact energy that the pile-slab retaining wall can withstand is 905 kJ in this study when the structure top is taken as the impact point. Impact resistance of the structure optimized 1.814 times compared to traditional reinforced concrete retaining walls.
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Notice on discussion status
The requested preprint has a corresponding peer-reviewed final revised paper. You are encouraged to refer to the final revised version.
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Preprint
(7284 KB)
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The requested preprint has a corresponding peer-reviewed final revised paper. You are encouraged to refer to the final revised version.
- Preprint
(7284 KB) - Metadata XML
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- Final revised paper
Journal article(s) based on this preprint
Interactive discussion
Status: closed
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RC1: 'Comment on egusphere-2023-2715', Polina Lemenkova, 13 Dec 2023
Review of the manuscript ID egusphere-2023-2715 ‘Dynamic Response of Pile-Slab Retaining Wall Structure under Rockfall Impact’ submitted to Natural Hazards and Earth System Sciences.
Focus of the paper: numerical modelling in engineering geology.
Relevance: The presented study is the original primary research within scope of the journal.
Title: the title and abstract of this paper clearly reflect its content.
Abstract is well written and clearly describes the undertaken study: In the presented experiment, the impact resistance of the structure is optimized compared to traditional reinforced concrete retaining walls.
Structure: The article is well organized with structured sections. The structure of the manuscript conforms to the journal standards and discipline norm.
Introduction presents a background, defines research goals and provides a clear statement of research problem. It describes the purpose of the research investigation supported by literature. The Introduction well describes the research. Introduction and background show context of the article. Literature is well referenced and relevant.
Research questions and goal are identified. Objectives are relevant to the study aim.
Literature regarding the relevant topics is reviewed, formatted according to the journal rules and appropriately referenced. Major sources include published papers on geotechnical engineering.
Research gaps and weakness in former works are described: the authors evaluated the that the impact position which has a significant effect on the stability of the structure, which has not been investigated earlier.
Motivation is explained: The authors presented numerical experiments to investigate the dynamic response of a pile-slab retaining wall under the impact of rockfall.
Methods: The authors performed a full-scale numerical model of a four-span pile-slab retaining wall satisfying specification requirements.
ts are reported: The authors reported that during the impact process, the stress, strain, and concrete damage of the structure spread from the impact centre to the entire structure and result in permanent deformation. The authors also reported that lateral displacement of pile at ground surface and the number of damage failure units under the pile as the impact centre is greater than those under the slab as impact centre.
Discussion interpreted the major outcomes of this study: The authors discussed a presented series of numerical experiments to investigate the dynamic response of a pile-slab retaining wall under different impact centers and velocities.
Conclusion The authors predicted the maximum impact energy that the structure can resist.
Actuality: the authors found that the impact force, interaction force, lateral displacement of pile at ground surface, and concrete damage is increased with the increase of impact velocity.
Novelty: The authors investigated the relationship between the impact velocity and the maximum lateral displacement of pile at ground surface. The authors also estimated maximum impact energy that the pile-slab retaining wall can withstand.
Academic contribution: Rigorous investigation performed to a high technical and professional standard. The paper deserved to be published in Natural Hazards and Earth System Sciences.
Figures The authors presented 20 figures which are of acceptable quality, easy to read, relevant and suitable. Figures are labelled and appropriately described.
Recommendation: This manuscript can be ACCEPTED based on the detailed report above.
With kind regards,
- Reviewer.
13.12.2023.-
RC2: 'Reply on RC1', Anonymous Referee #2, 30 Dec 2023
This manuscript uses numerical simulation methods to study the dynamic response of pile plate retaining walls under rockfall impact, and the topic has positive value for rockfall disaster prevention and reduction. My suggestion for this work is as follows: (1) I suggest rewriting the abstract section. The current abstract describes too much experimental process, information, and results. These pieces of information are not what readers most want to see, nor are they the most valuable conclusions drawn in this manuscript. Therefore, I suggest the author rewrite the abstract. (2) The manuscript lacks some case studies information and is detached from the case and reality. The numerical simulation results of this manuscript appear to lack basis, greatly reducing their value, and the reliability of the results cannot be verified from real projects. (3) The results obtained from numerical simulation lack in-depth mechanism analysis and in-depth refinement of understanding. The knowledge obtained from the current results and conclusions is similar to that of common sense, and there is no need to carry out this work, as readers can also recognize. (4) The discussion section of this manuscript is relatively weak. It is recommended that the author, based on reading and referring to a large number of literature, describe the advantages and limitations of the data, models, methods, results, etc. involved in this manuscript.
Citation: https://doi.org/10.5194/egusphere-2023-2715-RC2 -
AC2: 'Reply on RC2', Peng Zou, 13 Feb 2024
Dear Reviewer:
We gratefully thank for your constructive remarks and useful suggestions, which has significantly raised the quality of the manuscript and has enable us to improve the manuscript. Below the comments of the reviewers are response point by point and the revisions are indicated. Due to the large content, we have uploaded it as an attachment.
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AC2: 'Reply on RC2', Peng Zou, 13 Feb 2024
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AC1: 'Reply on RC1', Peng Zou, 13 Feb 2024
Dear Polina Lemenkova:
We hope this letter finds you well. We wanted to express my heartfelt gratitude for the time and effort you dedicated to reviewing the manuscript.
Your expertise and valuable insights played a crucial role in shaping my research. Your review not only helped me identify potential issues of the manuscript but also contributed to making my study more robust and accurate.
We sincerely appreciate you taking the time out of your busy schedule to review the manuscript and provide constructive feedback. Your contribution means a lot to us, and we are truly grateful for it.
Once again, thank you for your hard work and professional dedication.
Citation: https://doi.org/10.5194/egusphere-2023-2715-AC1
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RC2: 'Reply on RC1', Anonymous Referee #2, 30 Dec 2023
Interactive discussion
Status: closed
-
RC1: 'Comment on egusphere-2023-2715', Polina Lemenkova, 13 Dec 2023
Review of the manuscript ID egusphere-2023-2715 ‘Dynamic Response of Pile-Slab Retaining Wall Structure under Rockfall Impact’ submitted to Natural Hazards and Earth System Sciences.
Focus of the paper: numerical modelling in engineering geology.
Relevance: The presented study is the original primary research within scope of the journal.
Title: the title and abstract of this paper clearly reflect its content.
Abstract is well written and clearly describes the undertaken study: In the presented experiment, the impact resistance of the structure is optimized compared to traditional reinforced concrete retaining walls.
Structure: The article is well organized with structured sections. The structure of the manuscript conforms to the journal standards and discipline norm.
Introduction presents a background, defines research goals and provides a clear statement of research problem. It describes the purpose of the research investigation supported by literature. The Introduction well describes the research. Introduction and background show context of the article. Literature is well referenced and relevant.
Research questions and goal are identified. Objectives are relevant to the study aim.
Literature regarding the relevant topics is reviewed, formatted according to the journal rules and appropriately referenced. Major sources include published papers on geotechnical engineering.
Research gaps and weakness in former works are described: the authors evaluated the that the impact position which has a significant effect on the stability of the structure, which has not been investigated earlier.
Motivation is explained: The authors presented numerical experiments to investigate the dynamic response of a pile-slab retaining wall under the impact of rockfall.
Methods: The authors performed a full-scale numerical model of a four-span pile-slab retaining wall satisfying specification requirements.
ts are reported: The authors reported that during the impact process, the stress, strain, and concrete damage of the structure spread from the impact centre to the entire structure and result in permanent deformation. The authors also reported that lateral displacement of pile at ground surface and the number of damage failure units under the pile as the impact centre is greater than those under the slab as impact centre.
Discussion interpreted the major outcomes of this study: The authors discussed a presented series of numerical experiments to investigate the dynamic response of a pile-slab retaining wall under different impact centers and velocities.
Conclusion The authors predicted the maximum impact energy that the structure can resist.
Actuality: the authors found that the impact force, interaction force, lateral displacement of pile at ground surface, and concrete damage is increased with the increase of impact velocity.
Novelty: The authors investigated the relationship between the impact velocity and the maximum lateral displacement of pile at ground surface. The authors also estimated maximum impact energy that the pile-slab retaining wall can withstand.
Academic contribution: Rigorous investigation performed to a high technical and professional standard. The paper deserved to be published in Natural Hazards and Earth System Sciences.
Figures The authors presented 20 figures which are of acceptable quality, easy to read, relevant and suitable. Figures are labelled and appropriately described.
Recommendation: This manuscript can be ACCEPTED based on the detailed report above.
With kind regards,
- Reviewer.
13.12.2023.-
RC2: 'Reply on RC1', Anonymous Referee #2, 30 Dec 2023
This manuscript uses numerical simulation methods to study the dynamic response of pile plate retaining walls under rockfall impact, and the topic has positive value for rockfall disaster prevention and reduction. My suggestion for this work is as follows: (1) I suggest rewriting the abstract section. The current abstract describes too much experimental process, information, and results. These pieces of information are not what readers most want to see, nor are they the most valuable conclusions drawn in this manuscript. Therefore, I suggest the author rewrite the abstract. (2) The manuscript lacks some case studies information and is detached from the case and reality. The numerical simulation results of this manuscript appear to lack basis, greatly reducing their value, and the reliability of the results cannot be verified from real projects. (3) The results obtained from numerical simulation lack in-depth mechanism analysis and in-depth refinement of understanding. The knowledge obtained from the current results and conclusions is similar to that of common sense, and there is no need to carry out this work, as readers can also recognize. (4) The discussion section of this manuscript is relatively weak. It is recommended that the author, based on reading and referring to a large number of literature, describe the advantages and limitations of the data, models, methods, results, etc. involved in this manuscript.
Citation: https://doi.org/10.5194/egusphere-2023-2715-RC2 -
AC2: 'Reply on RC2', Peng Zou, 13 Feb 2024
Dear Reviewer:
We gratefully thank for your constructive remarks and useful suggestions, which has significantly raised the quality of the manuscript and has enable us to improve the manuscript. Below the comments of the reviewers are response point by point and the revisions are indicated. Due to the large content, we have uploaded it as an attachment.
-
AC2: 'Reply on RC2', Peng Zou, 13 Feb 2024
-
AC1: 'Reply on RC1', Peng Zou, 13 Feb 2024
Dear Polina Lemenkova:
We hope this letter finds you well. We wanted to express my heartfelt gratitude for the time and effort you dedicated to reviewing the manuscript.
Your expertise and valuable insights played a crucial role in shaping my research. Your review not only helped me identify potential issues of the manuscript but also contributed to making my study more robust and accurate.
We sincerely appreciate you taking the time out of your busy schedule to review the manuscript and provide constructive feedback. Your contribution means a lot to us, and we are truly grateful for it.
Once again, thank you for your hard work and professional dedication.
Citation: https://doi.org/10.5194/egusphere-2023-2715-AC1
-
RC2: 'Reply on RC1', Anonymous Referee #2, 30 Dec 2023
Peer review completion
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Peng Zou
Yuzhang Bi
Hanhua Xu
The requested preprint has a corresponding peer-reviewed final revised paper. You are encouraged to refer to the final revised version.
- Preprint
(7284 KB) - Metadata XML