Importance of Carrying Capacity Calculation

Oct 13, 2025 by wbrum.org 81 views

Introduction

The foundation is a crucial element in each building, serving to distribute the burden of the building and the weight of the foundation itself to the ground or rock below. The stability and safety of the structure are very dependent on the calculation of the carrying capacity of the foundation. In the context of the Medan - Binjai toll road construction project, especially in Bore Hole I Overpass Sei Semayang Sta 0 + 400, the analysis of the carrying capacity of a single 60 cm diameter pile is the main focus. This project aims to evaluate the carrying capacity of pile foundations through SPT (Standard Penetration Test) data and calendar, as well as comparing them with modeling results using the element method up.

Importance of Carrying Capacity Calculation

The carrying capacity of a foundation is a critical parameter in ensuring the stability and safety of a structure. A foundation with inadequate carrying capacity can lead to structural failure, which can result in catastrophic consequences. Therefore, it is essential to accurately calculate the carrying capacity of a foundation to ensure that it can withstand the loads imposed on it. In the context of the Medan - Binjai toll road project, the carrying capacity of the pile foundation is crucial in ensuring the stability and safety of the structure.

Methodology

The analysis of the carrying capacity of a single 60 cm diameter pile in Bore Hole I Overpass Sei Semayang was conducted using various methods, including SPT data, calendar method, and element method. The SPT data was used to calculate the carrying capacity of the pile, while the calendar method was used to determine the ultimate bearing capacity of the pile. The element method was used to model the behavior of the pile under various loads.

Results

The results of the analysis showed that the carrying capacity of the pile varied depending on the method used. Based on SPT data, the carrying capacity of the ultimate pile at a depth of 24 m was 543.93 tons. Meanwhile, the application of the calendar method with the Danish approach produced a higher value, which was 733.89 tons at point 4F. Modeling using the element method produced a carrying capacity of 546.00 tons.

Lateral Carrying Capacity

The calculation of the lateral carrying capacity of the pile was also carried out using the Broms method. The analytical ultimate lateral carrying capacity was obtained as 32.10 tons, while the graphical value was 33.08 tons. This shows the importance of choosing the right calculation method to ensure that the results obtained can be relied upon.

Elastic Decrease

The analysis of the elastic decrease in a single pile showed significant results. With the help of Plaxis software, the elastic decrease produced in Bore Hole I was 7.31 mm due to a load of 175 tons. This shows that the pile can withstand the load applied without causing excessive decreases, thus supporting the stability of the structure.

Efficiency of the Pole Group

The efficiency of the pole group was also evaluated using the Converse-Labarre method. The efficiency value obtained was 0.69, which gives an indication that the pole group applied in this project has good performance in supporting total burden.

Conclusion

The analysis of the carrying capacity of a single pile at Bore Hole I Overpass Sei Semayang shows how different methods can provide insight and varied results. A deep understanding of these parameters is very important to ensure the safety and stability of infrastructure projects such as toll roads, especially in areas with different soil characteristics. With the use of the right method, this project is expected to run successfully and provide long-term benefits for the community.

Recommendations

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

The use of SPT data and calendar method should be continued to ensure accurate calculation of the carrying capacity of the pile.
The element method should be used to model the behavior of the pile under various loads to ensure that the results obtained can be relied upon.
The efficiency of the pole group should be evaluated regularly to ensure that it can support the total burden imposed on it.
The use of Plaxis software should be continued to analyze the elastic decrease in the pile.

Future Work

Future work should focus on the following areas:

The use of other methods, such as finite element method, to analyze the carrying capacity of the pile.
The evaluation of the efficiency of the pole group under various loads.
The analysis of the elastic decrease in the pile under various loads.
The use of other software, such as Abaqus, to analyze the behavior of the pile under various loads.

Limitations

The analysis of the carrying capacity of a single pile at Bore Hole I Overpass Sei Semayang has several limitations, including:

The use of SPT data and calendar method may not provide accurate results due to the limitations of these methods.
The element method may not be able to accurately model the behavior of the pile under various loads.
The efficiency of the pole group may not be accurately evaluated due to the limitations of the Converse-Labarre method.

Conclusion

In conclusion, the analysis of the carrying capacity of a single pile at Bore Hole I Overpass Sei Semayang shows the importance of accurately calculating the carrying capacity of a foundation to ensure the stability and safety of a structure. The use of various methods, including SPT data, calendar method, and element method, is essential to ensure that the results obtained can be relied upon. The efficiency of the pole group should also be evaluated regularly to ensure that it can support the total burden imposed on it.

Q: What is the purpose of the analysis of the carrying capacity of a single pile in Bore Hole I Overpass Sei Semayang?

A: The purpose of the analysis is to evaluate the carrying capacity of the pile foundation in the Medan - Binjai toll road project, especially in Bore Hole I Overpass Sei Semayang Sta 0 + 400. The analysis aims to ensure the stability and safety of the structure by accurately calculating the carrying capacity of the pile.

Q: What methods were used to analyze the carrying capacity of the pile?

A: The analysis used various methods, including SPT (Standard Penetration Test) data, calendar method, and element method. The SPT data was used to calculate the carrying capacity of the pile, while the calendar method was used to determine the ultimate bearing capacity of the pile. The element method was used to model the behavior of the pile under various loads.

Q: What is the significance of the carrying capacity of the pile?

A: The carrying capacity of the pile is a critical parameter in ensuring the stability and safety of the structure. A foundation with inadequate carrying capacity can lead to structural failure, which can result in catastrophic consequences.

Q: What is the difference between the carrying capacity of the pile calculated using SPT data and the calendar method?

A: The carrying capacity of the pile calculated using SPT data was 543.93 tons, while the calendar method produced a higher value of 733.89 tons at point 4F. This shows that the calendar method can provide more accurate results than the SPT data.

Q: What is the lateral carrying capacity of the pile?

A: The lateral carrying capacity of the pile was calculated using the Broms method, which produced an analytical ultimate lateral carrying capacity of 32.10 tons and a graphical value of 33.08 tons.

Q: What is the efficiency of the pole group?

A: The efficiency of the pole group was evaluated using the Converse-Labarre method, which produced an efficiency value of 0.69. This indicates that the pole group applied in this project has good performance in supporting total burden.

Q: What is the elastic decrease in the pile?

A: The elastic decrease in the pile was analyzed using Plaxis software, which produced a value of 7.31 mm due to a load of 175 tons. This shows that the pile can withstand the load applied without causing excessive decreases, thus supporting the stability of the structure.

Q: What are the limitations of the analysis?

A: The analysis has several limitations, including the use of SPT data and calendar method, which may not provide accurate results due to the limitations of these methods. The element method may not be able to accurately model the behavior of the pile under various loads. The efficiency of the pole group may not be accurately evaluated due to the limitations of the Converse-Labarre method.

Q: What are the recommendations for future work?

A: The recommendations for future work include the use of other methods, such as finite element method, to analyze the carrying capacity of the pile. The evaluation of the efficiency of the pole group under various loads is also recommended. The analysis of the elastic decrease in the pile under various loads is also suggested. The use of other software, such as Abaqus, to analyze the behavior of the pile under various loads is also recommended.

Q: What are the implications of the analysis for the Medan - Binjai toll road project?

A: The analysis has significant implications for the Medan - Binjai toll road project, as it provides a better understanding of the carrying capacity of the pile foundation. The results of the analysis can be used to ensure the stability and safety of the structure, which is critical for the success of the project.

Q: What are the benefits of the analysis for the community?

A: The analysis has several benefits for the community, including the provision of a safe and stable structure for the toll road. The analysis also provides a better understanding of the carrying capacity of the pile foundation, which can be used to ensure the stability and safety of other structures in the area.