Analysis of the Carrying Capacity of the Pole Foundation System with Hydraulic Emphasis on the Sembiring Hospital Dormitory Development Project

Oct 13, 2025 by wbrum.org 111 views

Analysis of the Carrying Capacity of the Pole Foundation System with Hydraulic Emphasis on the Sembiring Hospital Dormitory Development Project

Introduction

The Sembiring Hospital Dormitory Development Project on Medan-Deli Tua Deli Serdang Street, North Sumatra, is a significant construction project that requires a robust foundation system to support the structure's weight. The project's engineers have chosen the pole foundation system as a solution to channel the burden of the structure to a hard soil layer located quite deep. The pole foundation system is a popular choice due to its durability to heavy loads and the ability to penetrate soft soil. However, the carrying capacity of the pole foundation system is a critical factor that needs to be evaluated to ensure the stability and safety of the structure.

The Importance of Carrying Capacity in Pole Foundation Systems

The carrying capacity of a pole foundation system refers to the maximum load that the system can withstand without failing. It is a critical factor that determines the safety and stability of the structure. The carrying capacity of a pole foundation system is influenced by several factors, including the type of soil, the depth of the soil, and the weather conditions. In this project, the research team conducted a carrying capacity analysis of the pole foundation system using three different methods: sondir data, standard penetration test (SPT), and manometer reading data on the hydraulic jacking system.

Data Methodology and Analysis

This study involved field data collection, consultation with implementing contractors, and literature studies. The calculation of the pole carrying capacity was done using a direct method for sondir data, the Mayerhoff method for SPT data, and manometer reading data from the hydraulic jacking system. The calculation results showed a significant difference in the carrying capacity of the ultimate pole at the same depth. Sondir data produced a carrying capacity of 48,080 tons, SPT data showed 58,200 tons, and daily pilling record data (manometer reading) showed 68.0 tons.

Factors that Influence the Difference in Carrying Capacity

The difference in the results of the calculation of the carrying capacity between the three methods can be caused by several factors, including:

*** Soil Conditions: Variations of soil conditions at each depth can affect the carrying capacity of the pole. The type of soil, its density, and its moisture content can all impact the carrying capacity of the pole. *** Types of Soil: Even though the distance is close, the soil type can vary, thus affecting the carrying capacity of the pole. Different types of soil have different properties that can affect the carrying capacity of the pole. *** Weather Factors: Weather conditions such as rainfall can affect the density of soil and the carrying capacity of the pole. Rainfall can cause the soil to become saturated, which can reduce its carrying capacity. *** Operator Skills: Operator accuracy in conducting sondir testing and SPT can affect the measurement results. The skills and experience of the operators can impact the accuracy of the measurements. *** Calculation Parameters: The use of different parameters in calculations can produce different results. The choice of parameters can affect the accuracy of the calculations.

Recommendations and Conclusions

The results of this study indicate that it is essential to choose the right method in calculating the carrying capacity of piles based on field conditions and the purpose of the analysis. Combining data from various methods, such as sondir, SPT, and hydraulic data, can provide a more comprehensive picture of the carrying capacity of piles.

It is crucial to consider the factors that can affect the carrying capacity of pole, such as soil types, depth, and weather factors. In addition, operator training and the use of appropriate parameters in calculations become very important to achieve accurate results.

Suggestions for Future Research

Conduct more in-depth soil analysis to determine the variation of soil conditions and its effect on the carrying capacity of the pole.
Combining data from various methods to get a more comprehensive picture of the carrying capacity of the pole.
Consider the weather factor in the calculation of the carrying capacity of the pole.
Train operators to increase accuracy in conducting testing.
Using parameters in accordance with the field conditions in the calculation.

By paying attention to these factors, the Sembiring Hospital dormitory construction project can be carried out more optimally and safely, as well as ensuring the stability and safety of long-term building structures.

Conclusion

The carrying capacity of the pole foundation system is a critical factor that needs to be evaluated to ensure the stability and safety of the structure. The results of this study indicate that it is essential to choose the right method in calculating the carrying capacity of piles based on field conditions and the purpose of the analysis. Combining data from various methods, such as sondir, SPT, and hydraulic data, can provide a more comprehensive picture of the carrying capacity of piles. By considering the factors that can affect the carrying capacity of pole, such as soil types, depth, and weather factors, and by training operators to increase accuracy in conducting testing, the Sembiring Hospital dormitory construction project can be carried out more optimally and safely.
Frequently Asked Questions (FAQs) about the Carrying Capacity of the Pole Foundation System

Q: What is the carrying capacity of a pole foundation system?

A: The carrying capacity of a pole foundation system refers to the maximum load that the system can withstand without failing. It is a critical factor that determines the safety and stability of the structure.

Q: Why is the carrying capacity of a pole foundation system important?

A: The carrying capacity of a pole foundation system is important because it determines the safety and stability of the structure. If the carrying capacity is not sufficient, the structure may collapse or experience significant damage.

Q: What factors can affect the carrying capacity of a pole foundation system?

A: Several factors can affect the carrying capacity of a pole foundation system, including:

Soil conditions: Variations of soil conditions at each depth can affect the carrying capacity of the pole.
Types of soil: Different types of soil have different properties that can affect the carrying capacity of the pole.
Weather factors: Weather conditions such as rainfall can affect the density of soil and the carrying capacity of the pole.
Operator skills: Operator accuracy in conducting sondir testing and SPT can affect the measurement results.
Calculation parameters: The use of different parameters in calculations can produce different results.

Q: How can the carrying capacity of a pole foundation system be calculated?

A: The carrying capacity of a pole foundation system can be calculated using various methods, including:

Direct method for sondir data
Mayerhoff method for SPT data
Manometer reading data from the hydraulic jacking system

Q: What is the difference between sondir data and SPT data?

A: Sondir data and SPT data are two different methods used to calculate the carrying capacity of a pole foundation system. Sondir data is obtained using a direct method, while SPT data is obtained using the Mayerhoff method.

Q: Why is it important to consider the weather factor in the calculation of the carrying capacity of a pole foundation system?

A: The weather factor is important to consider in the calculation of the carrying capacity of a pole foundation system because weather conditions such as rainfall can affect the density of soil and the carrying capacity of the pole.

Q: How can the accuracy of the measurements be improved?

A: The accuracy of the measurements can be improved by:

Training operators to increase accuracy in conducting testing
Using parameters in accordance with the field conditions in the calculation
Conducting more in-depth soil analysis to determine the variation of soil conditions and its effect on the carrying capacity of the pole

Q: What are the benefits of combining data from various methods?

A: Combining data from various methods can provide a more comprehensive picture of the carrying capacity of piles. It can help to identify the factors that affect the carrying capacity of the pole and provide a more accurate calculation of the carrying capacity.

Q: What are the implications of the study's findings for the Sembiring Hospital dormitory construction project?

A: The study's findings have significant implications for the Sembiring Hospital dormitory construction project. They highlight the importance of choosing the right method in calculating the carrying capacity of piles based on field conditions and the purpose of the analysis. They also emphasize the need to consider the factors that can affect the carrying capacity of pole, such as soil types, depth, and weather factors. By paying attention to these factors, the project can be carried out more optimally and safely, and the stability and safety of long-term building structures can be ensured.