# Dynamic Simulation of Underground Cable Laying for Digital Three-Dimensional Transmission Lines
## 6 Conclusions  
After in-depth research on the secondary development of ADAMS, we have chosen the Bushing force connection method as the most suitable modeling approach for the cables in this model. After analyzing the time-varying characteristics of cable laying tension and other properties and validating the reliability and effectiveness of the model through comparisons with computational data from actual construction, we can draw the following three conclusions:  
(1) Compared to the traditional information processing of two-dimensional DWG drawings, this paper utilizes BIM technology and virtual prototype technology to transform two-dimensional representations into three-dimensional models, proposing a comprehensive set of methods for dynamically simulating the three-dimensional cable laying process within tunnels.  
(2) The cable laying system model can comprehensively simulate the dynamic characteristics during the cable laying process and accurately calculate the axial tension values and their positions for each time segment. This model not only enhances the design efficiency of cable laying projects but also provides strong guidance for actual construction.  
(3) This paper proposes a cable-laying construction method based on BIM technology. According to the actual construction requirements, when facing the characteristics of various transmission equipment and environments, it allows for a more precise selection of pulleys, thereby eliminating safety hazards and improving the safety of the cable laying process.  
(4) Compared to other references, we can find that the method proposed in this paper has smaller average and max errors. However, it should be noted that this work does not take into account actual complex working conditions. Therefore, it is necessary for future research to implement optimal modeling in complex environments.  
The authors confirm contribution to the paper as follows: study conception and design: C.F. and W.L.; data collection: X.Y. and J.Z.; model building: W.L. and J.L.; analysis and interpretation of results: C.F., W.L. and J.L.; draft manuscript preparation: C.F. and W.L. All authors have read and agreed to the published version of the manuscript.  
This research received no external funding.  
Data Availability Statement: The original contributions presented in the study are included in the article, further inquiries can be directed to the corresponding author.  
This paper was completed under the careful guidance of my supervisor, Associate [PERSON], in the determination of the research scheme, theoretical analysis, data processing, and the writing and finalization of the article, [PERSON] gave me attentive teaching and selfless help, and at the same time, I would like to thank [PERSON] for providing the modeling data, and [PERSON] and [PERSON] for their dedication and assistance in the process of completing the thesis, which is permeated by their efforts and sweat. On the occasion of completing this paper, we would like to express our deep gratitude to [PERSON], [PERSON], [PERSON], and [PERSON]. Difficulties often dissipate in the discussion of fellow students, and inspiration often springs to mind in collaboration. This little-by-little achievement is the condensation of your blood and sweat. No matter where I go, your teachings will always be engraved in my heart.  
Author [PERSON] was employed by the company State Grid Hubei Electric Power Co., Ltd., Wuhan Power Supply Company. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.