Intelligent Compaction Measurement Value in Variability Control of Subgrade Compaction Quality

Round 1

Reviewer 1 Report

1.     English language of the manuscript can be improved.

2.     In Lines 73 and 79, “Error! Reference source not found” should be checked and modified.

3.     “Regulation of Highway Geotechnical Test” should be “Test methods of soils for highway engineering”.

4.     In Section 3.2.1, The external loading acted on the surface of subgrade is assumed to be a vertical static concentrated force. This assumption is inconsistent with reality.

5.     The description of FE Model seems too simple. How to consider the loading of vibratory roller and constitutive model of filling layers?

6.     The authors didn’t provide the details of convention from measured results into modulus of vibration compaction.

Author Response

Thank you very much for taking the time to review this manuscript.

Comments 1: English language of the manuscript can be improved.

Response 1: Thank you for pointing this out. I agree with this comment. Therefore, I have revised in the paper.

Comments 2: In Lines 73 and 79, “Error! Reference source not found” should be checked and modified.

Response 2: I’m so sorry to not find error in lines 73 and 79.

Comments 3: “Regulation of Highway Geotechnical Test” should be “Test methods of soils for highway engineering”.

Response 3: Agree. I have revised.

Comments 4: In Section 3.2.1, The external loading acted on the surface of subgrade is assumed to be a vertical static concentrated force. This assumption is inconsistent with reality.

Response 4: My assumptions may be inconsistent with reality, but I Simplify the assumption of the external loading to be a vertical static concentrated force because of its great stiffness, and there would be no deflection, and the de-flection of each point on the top surface of subgrade contacted with steel wheel along its width direction is the same.

Comments 5: The description of FE Model seems too simple. How to consider the loading of vibratory roller and constitutive model of filling layers?

Response 5: Agree, I would Publish articles that the two-degree-of-freedom model of the subgrade-soil cpmpactor vibration system was solved using Matlab/Simulink. Starting from the principles of finite element numerical analysis, I explored the numerical implementation methods of nonlinear elastic-plastic constitutive models based on the theory of elastic increment, plastic stress correction, and Rayleigh linear damping. Furthermore, the compaction degree, moisture content, confining pressure, and loading frequency of the soil samples were used as independent variables to fit the parameters of the Davidenkov constitutive model.

Comments 6: The authors didn’t provide the details of convention from measured results into modulus of vibration compaction.

Response 6: I gave the the details of E_vc in the section 3.2.1. Finally, E_vc was calculated by deflection database, that is, the filling layer E_vc can be directly determined from the database based on the equivalent deflection after determining the underlying layer E_vib.

Author Response File: Author Response.pdf

Reviewer 2 Report

-Do a proper literature survey on the compaction technology and outline the problems.

-Literature gap is not stated.

-Add a flowchart in the methodology section.

-How did you chose the parameters for compaction? Add some supporting references.

-Add references to the governing equations.

-Discuss the meshing. Size taken, Convergence test for selecting mesh size.

-Discuss the boundary conditions and exceptions.

-Provide convergence of results obtained with previous research.

-Add some future scope.

-Your model can behave differently on different types of soil and geographic location. Add a discussion.

Author Response

Thank you very much for taking the time to review this manuscript.

Author Response File: Author Response.pdf

Reviewer 3 Report

Please refer to the comments as mark in the manuscript. 

Comments for author File: Comments.pdf

Moderate editing of English language required

Author Response

Thank you very much for taking the time to review this manuscript.

Author Response File: Author Response.pdf

Round 2

Reviewer 1 Report

No

Reviewer 2 Report

All the revisions are fine.

Round 3

Reviewer 2 Report

-