Advances in Deformation and Permeability Evolution during Creep of Rocks
Round 1
Reviewer 1 Report
The paper is terribly written. Even in the abstract, I can find several clear mistakes. Inside the main text, there are many unclear parts, which make the paper very difficult to follow.
Author Response
Response to Reviewer 1 Comments
Point 1: The paper is terribly written. Even in the abstract, I can find several clear mistakes. Inside the main text, there are many unclear parts, which make the paper very difficult to follow.
Response 1: I carefully checked my mistake in abstract and main text. I removed obvious mistakes and improved my English in all parts of manuscript.
Author Response File: 
Author Response.pdf
Reviewer 2 Report
Being a review, this work does not contain novel content. However, the purpose of review papers is not only to collate and summarize the literature on a topic, but also to highlight gaps and perspectives, so as to address the future work of scholars. This has been done in the conclusion but, considering the length of the work, it could be expanded and discussed further. As for the rest of the manuscript, the lack of figures makes it "boring" and harder to read. I suggest that the authors select a few case studies using which they demonstrate the performances/behaviours of the various equations from the literature, so as to show the reader how they are different and/or insufficient (thus motivating further research)
Author Response
Response to Reviewer 2 Comments
Point 1: Being a review, this work does not contain novel content.
Response 1: This paper suggested the necessity of investigating the effect of heterogeneous of rock on creep-permeability and its behavior under Thermal-Mechanical-Hydraulic-Chemical fields. The paper confirm, in order to conduct this investigation, it needs to establish the improved creep-permeability evolution model and method of modeling with DEM.
Point 2: I suggest that the authors select a few case studies using which they demonstrate the performances/behaviours of the various equations from the literature, so as to show the reader how they are different and/or insufficient (thus motivating further research).
Response 2: After I more deeply analyzed the performance and behaviour in previous studies and investigated the insufficient of present phase in this area, I supplied the result to the main text.
Author Response File: Author Response.pdf
Reviewer 3 Report
The permeability evolution of rocks, related to rock properties and stress states, etc., is a very important research subject in rock engineering. This manuscript gives an overview of recent years concerning the coupled Hydro-Mechanical tests, the permeability models and simulation of Hydro-Mechanical coupling. This is a very difficult work. However, there are still some improvements needed.
1 Please outline the different characteristics of the evolution of permeability properties based on rock type, stress state, etc.
2 Permeability models are mostly macroscopic empirical models in which permeability can be correlated with porosity, stress-strain, damage, etc., respectively. Please outline the conditions under which these models are applicable, including rock type, stress state, etc.
3 Numerical simulation of Hydro- Mechanical coupling is a challenging research topic and there are a large number of research results in this area. It is recommended to enhance the overview of this section.
Author Response
Response to Reviewer 3 Comments
Point 1: Please outline the different characteristics of the evolution of permeability properties based on rock type, stress state, etc.
Response 1: I think your comments are right. But I put this paper investigates the deformation and permeability during creep of rocks. There is a lack of articles to focus on permeability evolution during creep of rock. So, I think it is difficult to outline based on yours.
Point 2: Permeability models are mostly macroscopic empirical models in which permeability can be correlated with porosity, stress-strain, damage, etc., respectively. Please outline the conditions under which these models are applicable, including rock type, stress state, etc.
Point 2: I attached the detailed description of the condition under which those models are applied.
Point 3: Numerical simulation of Hydro- Mechanical coupling is a challenging research topic and there are a large number of research results in this area. It is recommended to enhance the overview of this section.
Point 3: I enhanced the overview of numerical simulation.
Author Response File: Author Response.pdf
