Analysis Of Calculation Of Decreased And Consolidation Time In Soil In Analytic Kualanamu Airport Apron And Plaxis Program

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Introduction

The construction of airports requires careful planning and execution to ensure the safety and efficiency of the structure. One of the critical aspects of airport construction is the design and implementation of soil consolidation methods to stabilize the soil and prevent settlement. The Kualanamu Airport apron, located in Indonesia, is one such example where soil consolidation is a crucial factor. In this study, we aim to analyze the calculation of decreased and consolidation time on soil in the Kualanamu Airport apron using the prefabricated vertical drain (PVD) method and the Plaxis program.

Background

Soil consolidation is a complex process that involves the movement of pore water out of the soil, resulting in changes in volume and structure. The rate of consolidation is influenced by various factors, including the type of soil, the presence of water, and the application of consolidation methods. In the case of the Kualanamu Airport apron, the soil is composed of soft cohesive soil, which is prone to settlement and requires specialized consolidation methods to stabilize it.

Methodology

This research was conducted using two approaches: the analytic approach and the Plaxis modeling approach. The analytic approach involves manual calculations of the decrease and consolidation time, while the Plaxis modeling approach uses software to simulate the prefabricated vertical drain (PVD) method and predict the behavior of the soil. The PVD method involves the installation of prefabricated vertical drains into the soil to accelerate the process of pore water flow and reduce the time needed for consolidation.

Consolidation Process

Consolidation is a critical process in soil engineering that involves the movement of pore water out of the soil, resulting in changes in volume and structure. In the case of the Kualanamu Airport apron, the addition of PVD allows pore water to flow both vertically and horizontally, accelerating the process of consolidation and reducing the time needed to achieve stable soil conditions. This study focuses on stopping calculations when the degree of consolidation reaches 95%, indicating that almost all pore water has been anticipated.

Analysis Results

The calculation results show a difference between the analytic approach and the Plaxis model. From the analytic method, a land decline of 0.767 meters and consolidation time of 118 days were obtained. Conversely, from the Plaxis simulation, a decrease of 0.74 meters and consolidation time of 102 days were obtained. This difference reflects the uncertainty in the calculation, which can be caused by different assumptions or specificity in the simulation model.

Discussion

The results of this study demonstrate the effectiveness of the PVD method in accelerating the process of soil consolidation. Although there is a difference between the results of the analytic calculations and the Plaxis simulation, both methods provide valuable insights into the behavior of soil in the context of civil engineering. This knowledge is essential in designing safe and efficient structures, especially in areas with soft cohesive soils.

Conclusion

In conclusion, this study demonstrates the importance of soil consolidation in airport construction and the effectiveness of the PVD method in accelerating the process of consolidation. The results of this study provide valuable insights into the behavior of soil and highlight the need for further research to refine the PVD method for wider application in the field of geotechnical engineering.

Recommendations

Based on the results of this study, the following recommendations are made:

  • Further research is needed to refine the PVD method for wider application in the field of geotechnical engineering.
  • The use of Plaxis software should be considered as a valuable tool in predicting the behavior of soil and designing safe and efficient structures.
  • The importance of soil consolidation in airport construction should be emphasized, and the PVD method should be considered as a viable option for stabilizing soft cohesive soils.

Limitations

This study has several limitations, including:

  • The use of a single type of soil (soft cohesive soil) may limit the generalizability of the results.
  • The PVD method may not be suitable for all types of soil, and further research is needed to determine its effectiveness in different soil conditions.
  • The Plaxis software may not accurately predict the behavior of soil in all scenarios, and further validation is needed to ensure its accuracy.

Future Research Directions

Future research directions include:

  • Investigating the effectiveness of the PVD method in different types of soil.
  • Developing a more accurate model for predicting the behavior of soil using Plaxis software.
  • Exploring the use of other consolidation methods, such as the electro-osmotic consolidation method, for stabilizing soft cohesive soils.

Conclusion

In conclusion, this study demonstrates the importance of soil consolidation in airport construction and the effectiveness of the PVD method in accelerating the process of consolidation. The results of this study provide valuable insights into the behavior of soil and highlight the need for further research to refine the PVD method for wider application in the field of geotechnical engineering.

Q: What is the purpose of this study?

A: The purpose of this study is to analyze the calculation of decreased and consolidation time on soil in the Kualanamu Airport apron using the prefabricated vertical drain (PVD) method and the Plaxis program.

Q: What is the significance of soil consolidation in airport construction?

A: Soil consolidation is a critical process in airport construction that involves the movement of pore water out of the soil, resulting in changes in volume and structure. The rate of consolidation is influenced by various factors, including the type of soil, the presence of water, and the application of consolidation methods.

Q: What is the prefabricated vertical drain (PVD) method?

A: The PVD method involves the installation of prefabricated vertical drains into the soil to accelerate the process of pore water flow and reduce the time needed for consolidation.

Q: What is the Plaxis program?

A: The Plaxis program is a software used to simulate the behavior of soil and predict the results of consolidation methods, such as the PVD method.

Q: What are the benefits of using the PVD method?

A: The benefits of using the PVD method include:

  • Accelerated consolidation process
  • Reduced time needed for consolidation
  • Improved soil stability
  • Reduced risk of settlement and damage to structures

Q: What are the limitations of this study?

A: The limitations of this study include:

  • The use of a single type of soil (soft cohesive soil) may limit the generalizability of the results.
  • The PVD method may not be suitable for all types of soil, and further research is needed to determine its effectiveness in different soil conditions.
  • The Plaxis software may not accurately predict the behavior of soil in all scenarios, and further validation is needed to ensure its accuracy.

Q: What are the future research directions?

A: Future research directions include:

  • Investigating the effectiveness of the PVD method in different types of soil.
  • Developing a more accurate model for predicting the behavior of soil using Plaxis software.
  • Exploring the use of other consolidation methods, such as the electro-osmotic consolidation method, for stabilizing soft cohesive soils.

Q: What are the practical applications of this study?

A: The practical applications of this study include:

  • Designing safe and efficient structures, especially in areas with soft cohesive soils.
  • Developing more accurate models for predicting the behavior of soil using Plaxis software.
  • Improving the effectiveness of consolidation methods, such as the PVD method, for stabilizing soft cohesive soils.

Q: What are the implications of this study for the construction industry?

A: The implications of this study for the construction industry include:

  • The need for more accurate models for predicting the behavior of soil using Plaxis software.
  • The importance of considering the type of soil and the presence of water when designing structures.
  • The potential for improved soil stability and reduced risk of settlement and damage to structures using the PVD method.

Q: What are the implications of this study for the field of geotechnical engineering?

A: The implications of this study for the field of geotechnical engineering include:

  • The need for more research on the effectiveness of consolidation methods, such as the PVD method, in different types of soil.
  • The importance of developing more accurate models for predicting the behavior of soil using Plaxis software.
  • The potential for improved soil stability and reduced risk of settlement and damage to structures using the PVD method.