Monitoring and Analysis of Dynamic Response for Open-Pit Mine with Inside Inclined Shafts under Train Loading
Round 1
Reviewer 1 Report
The following comments and suggestions will improve the understanding of the material presented by this paper.
Review comments
- A closer picture of the mine should be added in the article.
- The aerial view of the region should include arrows and names of all the mountains, rivers, etc. mentioned in lines 73-80.
- In addition to Figure 2 as a subplot, a cross-section (showing the layers thickness and the elevation) of the area with the measuring point layout would be useful.
- Please give a description of the sand injection inclined shaft and east exhaust inclined shaft and how the position was picked.
- What are the values of the frequencies ω1, ω2, ω3, and how were they picked?
- In Figure 8 the red letters cannot be read.
- Please describe the finite element model you used. What elements were used?
- How far down were the boundaries of the finite element model and how this distance was picked?
- Why the Equation (1) was used as a load in the finite element model and not the time history of accelerations that were measured at the ground level when the train was passing?
- In conclusion, please rewrite lines 325-327.
- Do the authors have any recommendations for engineers in practice-based to their research?
Author Response
Sincerely grateful for the careful comments on the manuscript. We have revised all of the specific comments in the manuscript. Please check the attachment.
Author Response File: 
Author Response.pdf
Reviewer 2 Report
This paper is good for publication.
Comments for author File: Comments.pdf
Author Response
Sincerely grateful for the careful comments of the manuscript.
Author Response File: Author Response.pdf
Reviewer 3 Report
The article contains interesting numerical simulations for the conditions of inclined shafts subjected to dynamic loads. The use of the Plaxis3D three-dimensional numerical program is justified both from a technical and scientific point of view. Below are some comments and suggestions:
In the introduction, the information on where in the world inclined shafts are used in opencast mining or on slopes should be expanded.
In chapter 2.2, it should be written the frequency with which the measurements were taken.
Regarding numerical modeling, it should be stated whether the suppression of the rock mass layers has been taken into account, or if any dynamic coefficient has been introduced.
Figure 15, the text should be corrected into English.
At the end of the third chapter, a static versus dynamic load comparison table would be useful.
In conclusion, please write a few sentences explaining the innovativeness of the measurements or calculations.
Author Response
Sincerely grateful for the careful comments of the manuscript. We have revised all of the specific comments in the manuscript. Please check the attachment.
Author Response File: Author Response.pdf
Reviewer 4 Report
Reviewer Comments
Paper title: Monitoring and analysis of dynamic response for open-pit mine with inside inclined shafts under train loading
In the present manuscript, the dynamic response of the slope with inside two inclined shafts was conducted under train loading based on the Fushun LaoHuTai open-pit mine project. A manuscript has a practical application and also provides important theoretical for the next studies.
The paper is well structured and can be accepted for publication after providing the corrections mentioned below.
Point 1. Abstract section sounds as results section. The abstract should follow the MDPI style of structured abstracts:
- Background (place the question addressed in a broad context and highlight the purpose of the study);
- Methods (describe briefly the main methods);
- Results (summarize the article's main findings);
- Conclusion (indicate the main conclusions or interpretations).
Point 2. In the Introduction section, an enhanced literature review is required. For this study, the authors have used only 25 literature sources. It seems insufficient for such type of research. It will be great if the authors show some description in context – Why it is important to conduct this study?
Point 3. The aim and the tasks must be highlighted at the end of the Introduction section.
Point 4. Figure 1. The Map of Chine on the right is required to show where the Mine is located.
Point 5. Figure 1. It is not a schematic map. It is a satellite map.
Point 6. Figure 2 must be decreased. It seems to be so huge.
Point 7. Please add a general title for Figures 3, 4, 5, 8, 10-14, 16-19
Point 8. Section 2.3.1. Why PLAXIS 3D was selected?
Point 9. Please justify the boundary conditions of the model (200 m×120 m×145 m).
Point 10. You should add the scale for Figure 5.
Point 11. In Table 1 please add a full description (title) for ?unsat, ?sat, E’, v, c, φ.
Point 12. Can you provide sharper quality for Figure 8? There are data that can not be viewed.
Point 13. There are several missing sections after the Conclusions (Funding, Institutional Review Board Statement, Conflicts of Interest). Please revise.
Point 14. Please consider the suggested research in your paper when enhancing the literature review (Case study from authors from Kazakhstan, Ukraine, Uzbekistan, Egypt):
Abdellah, W.R., Hussein, M.Y., & Imbabi, S.S. (2020). Rock slope stability analysis using shear strength reduction technique (SSRT) – case histories. Mining of Mineral Deposits, 14(2), 16-24. https://doi.org/10.33271/mining14.02.016
Abdellah, W.R., Beblawy, M.M., & Mohamed, M.T. (2018). Evaluation of open pit slope stability using various slope angles and element types. Mining of Mineral Deposits, 12(2), 47-57.
Dryzhenko, A., Moldabayev, S., Shustov, A., Adamchuk, A., & Sarybayev, N. (2017). Open pit mining technology of steeply dipping mineral occurences by steeply inclined sublayers. International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM, 17(13), 599-606.
Zairov, Sh., Ravshanova, M., & Karimov, Sh. (2018). Intensification of technological processes in drilling and blasting operations during open-cut mining in Kyzylkum region. Mining of Mineral Deposits, 12(1), 54-60.
Galiev, S.Z., Galiev, D.A., Seitaev, E.N., & Uteshov, E.T. (2019). Unified methodology for management of a geotechnological complex in open pit mining. Gornyi Zhurnal, (12), 70-75. https://doi.org/10.17580/gzh.2019.12.15
Point 6. In general, I must admit that a very good study was performed.
Comments for author File: Comments.pdf
Author Response
Sincerely grateful for the careful comments on the manuscript. We have revised all of the specific comments in the manuscript. Please check the attachment.
Author Response File: Author Response.pdf
Round 2
Reviewer 1 Report
The authors considered all comments and suggestion of the review process. The paper has improved considerably and I recommend to be accepted for publication.
Reviewer 4 Report
Dear authors,
I am more than satisfied with the corrections provided by you.
This study is an important contribution to the field of mining.
Congratulations to the authors.
Dr. V. Lozynskyi
