Melaksanakan Pekerjaan Pondasi Dangkal - Teknologi Konstruksi dan Properti

Direktorat SMK - Kemdikbud

10 Apr 202211:47

Summary

TLDRThis video script outlines the process of constructing shallow foundation work, specifically a stone foundation. It begins with safety measures, then moves on to digging foundation holes according to specified dimensions. The script details laying out strings, leveling and compacting soil, and creating a foundation profile. It continues with the preparation of materials and tools, the installation of the stone foundation, and the use of concrete and steel reinforcement. The video emphasizes the importance of following technical specifications and ensuring the structural integrity of the foundation. The narrator, Andi Mulyono, encourages viewers to practice the foundation construction in a practical setting.

Takeaways

👷 The video script introduces Andi Mulyono, a representative from SMK Negeri 1 Kota Sukabumi, who specializes in construction, sanitation, and maintenance.
🏗 The main topic of the video is the implementation of shallow foundation work, specifically focusing on stone column foundations.
🛠 The foundation work is crucial as it transfers the load from the structure to the hard soil beneath.
🔍 Before starting the work, safety measures such as the use of helmets and ensuring the work area is safe and comfortable are emphasized.
🕳 The process begins with digging the foundation holes according to the plan, using string lines and wooden boards for alignment.
🔨 Soil is excavated to prepare the foundation, with the aim of achieving a stable base under all conditions.
📏 A profile for the foundation is created to guide the placement of the stone columns, typically in a trapezoidal shape following the foundation's design.
🏔 The foundation is prepared with the correct tools and materials, including stone columns, sand, and cement, with a focus on the proper mixing and placement of materials.
🔩 Steel reinforcement bars are used to provide additional strength to the foundation, ensuring the stability of the structure.
🔍 The final step involves inspecting the completed shallow foundation to ensure it meets technical specifications and matches the work plan.
💡 The video concludes with a call to action for viewers to practice the foundation work themselves, providing specific dimensions for a stone column foundation.

Q & A

What is the main topic of the video?
-The main topic of the video is the implementation of shallow foundation work, specifically the construction of a stone column foundation.
Who is the presenter of the video?
-The presenter of the video is Andi Mulyono, who introduces himself as coming from SMK Negeri 1 Kota Sukabumi.
What are the competencies and skills mentioned in the introduction?
-The competencies and skills mentioned are construction, building sanitation, and maintenance.
What is the purpose of the foundation being discussed in the video?
-The purpose of the foundation is to transfer the load from the structure to the hard ground, serving as a substructure buried in the ground.
What safety measures are mentioned before starting the foundation work?
-Before starting the foundation work, safety measures such as the application of K3 (safety, health, and environment), wearing safety helmets, work boots, and ensuring the work location is safe and comfortable are mentioned.
What is the size of each stone column foundation mentioned in the video?
-Each stone column foundation has a size of 100 cm.
What tools and materials are used for digging the foundation hole?
-Tools and materials used for digging the foundation hole include planks (bowplank), ropes, lime, and a hoe.
How is the soil leveling and compaction done after digging the foundation hole?
-The soil is leveled and compacted according to procedures and specifications, using tools like compactors and by layering the soil and sand.
What is the shape and purpose of the foundation profile?
-The foundation profile is trapezoidal, following the shape of the foundation, and it serves as a reference for the implementation of the stone column foundation.
What are the specifications of the stone column foundation mentioned in the video?
-The specifications of the stone column foundation are a bottom width of 50 cm, a top width of 35 cm, and a height of 50 cm.
How is the stone column foundation constructed?
-The stone column foundation is constructed by placing large stones at the base, followed by a layer of sand, then compacting it with water. The stones are arranged with spaces for placing rebar, and the process is repeated according to technical specifications.
What is the final step mentioned in the video for the foundation work?
-The final step mentioned is to check the results of the shallow foundation work to ensure it matches the technical specifications and the working drawings.

Outlines

00:00

🏗️ Introduction to Foundation Work

The video introduces Andi Mulyono, a representative from SMK Negeri 1 Kota Sukabumi, who will guide viewers through the process of constructing shallow foundation work. The video emphasizes the importance of safety by ensuring the use of personal protective equipment like helmets and safety shoes, and verifying the work site's safety. The process begins with digging the foundation hole, which is marked out using a string stretched between two boards, and then leveling and compacting the soil to achieve a stable base. The video also covers the preparation of the foundation profile, which is essential for guiding the placement of the foundation stones. The profile is typically trapezoidal, following the shape of the foundation, and is made using wood and stakes. The video concludes with a reminder to ensure that all work is done according to technical specifications and the provided drawings.

05:01

🔨 Shallow Foundation Construction

This section of the video script details the construction of a shallow foundation using stone. It begins with preparing the tools and materials needed for the job, such as shovels, hoes, and hammers, and the main materials like stone, sand, and cement. The process involves placing large stones at the base of the foundation, followed by a layer of sand. The sand is then compacted by pouring water over it and mixing it according to technical specifications. The video instructs on placing stones in a specific pattern to ensure a strong bond between them, with an emphasis on not aligning stones in a straight line to avoid weak spots. The video also covers the use of steel bars as reinforcement against the foundation stones. After the stones are placed, a check is performed to ensure the work matches the technical specifications and the drawings. Any gaps or poorly compacted areas are corrected to prevent structural damage. The video ends with instructions on backfilling the foundation, which is done in layers, compacting each layer according to technical specifications.

10:01

🛠️ Practical Exercise and Conclusion

The final paragraph of the script invites viewers to practice the construction of a shallow foundation using the knowledge gained from the video. It provides specific dimensions for a stone foundation: a top width of 25 cm, a bottom width of 40 cm, a height of 50 cm, and a length of 100 cm, with the excavation being 50 cm wide and 40 cm deep. The video concludes with a motivational message from Andi Mulyono, encouraging viewers to apply what they've learned and to continue practicing their skills. The video ends on a positive note, with a reminder to stay motivated and to practice safely.

Mindmap

Keywords

💡Foundation

A foundation in construction is the base upon which structures are built. It is a critical part of the substructure that transfers the load of the superstructure to the ground. In the video, the foundation is specifically for a shallow foundation, which is being constructed using stone masonry. The script mentions the importance of the foundation's role in ensuring the stability of the building, and the process of digging and preparing the ground for the foundation is described in detail.

💡Shallow Foundation

A shallow foundation is a type of foundation that is not very deep and is typically used when the soil is strong enough to support the structure's weight close to the surface. The video script describes the process of constructing a shallow foundation, including digging trenches and preparing the base for the stone masonry. The term is directly related to the video's theme as it is the main subject of the construction work being demonstrated.

💡Safety Measures

Safety measures are precautions taken to prevent accidents and ensure the well-being of workers on a construction site. The script mentions the implementation of safety measures such as the use of safety helmets and ensuring the work area is safe and comfortable. These measures are crucial in construction to protect workers from potential hazards, aligning with the video's focus on proper construction practices.

💡Excavation

Excavation refers to the process of digging or removing earth or rock to create a hole or trench for construction purposes. In the context of the video, excavation is the first step in creating a shallow foundation, where the ground is dug according to the construction plan to prepare for the foundation. The script describes the use of ropes and boards to mark the excavation area and the process of digging the trench.

💡Compaction

Compaction is the process of making soil or other granular material denser by mechanical manipulation, such as rolling or tamping. In the video, compaction is mentioned as a step in preparing the foundation, where the excavated soil is leveled and compacted to create a stable base. The script specifies that the soil layer beneath the foundation must be compacted to ensure stability, which is essential for the foundation's integrity.

💡Stone Masonry

Stone masonry involves the laying of stones in a structure, often used for foundations, walls, or other parts of buildings. The video script describes the process of constructing a stone masonry foundation, including the selection and placement of stones, the use of sand and cement as binding materials, and the techniques for ensuring a strong and stable structure. Stone masonry is central to the video's theme as it is the primary construction method being demonstrated.

💡Reinforcement

Reinforcement in construction typically refers to steel bars or other materials used to strengthen concrete or masonry structures. In the script, reinforcement is mentioned in the context of placing steel bars as part of the foundation to provide additional strength against the forces acting on the structure. This is a critical aspect of ensuring the durability and stability of the foundation.

💡Backfilling

Backfilling is the process of filling in the excavated material or other soil back into an excavated area after the construction of the foundation or other structures. The video script describes backfilling as a step that occurs after the foundation work is completed, where the earth is compacted around the foundation to provide additional support and stability.

💡Technical Specifications

Technical specifications are detailed instructions or requirements that guide the construction process, including dimensions, materials, and methods to be used. The script repeatedly refers to adhering to technical specifications, emphasizing the importance of following precise measurements and procedures when constructing the foundation. These specifications are crucial for ensuring the quality and safety of the construction work.

💡Inspection

Inspection in construction involves the examination of work to ensure it meets the required standards and specifications. The video script mentions the need to inspect the foundation work to confirm that it aligns with the technical specifications and construction plans. Inspection is a critical step in the construction process to identify and correct any deviations or issues before they become problematic.

💡Construction Plan

A construction plan is a detailed blueprint or set of instructions that outlines how a construction project should be executed. The script refers to the construction plan as a guide for determining the dimensions and layout of the foundation, including the width, height, and length of the foundation elements. The plan is essential for coordinating the construction work and ensuring that the final structure meets the design requirements.

Highlights

Introduction of Andi Mulyono, a representative from SMK Negeri 1 Kota Sukabumi, Indonesia, specializing in building construction, sanitation, and maintenance.

The presentation focuses on the implementation of shallow foundation work, specifically a stone column foundation.

Emphasis on the importance of the foundation as a substructure that transfers loads to the ground.

Explanation of the safety measures, including the use of helmets and ensuring a safe and comfortable work environment.

Demonstration of the process of excavating the foundation pit, including the use of bowplank and string lines for accurate digging.

The purpose of soil improvement is to achieve a stable soil base under all conditions.

Details on how to level and compact the excavated soil according to specifications.

The construction of the foundation profile, which serves as a reference for the installation of the stone column foundation.

Inspection of the foundation detail to ensure the alignment with the building's structural requirements.

Preparation of the tools and materials needed for the installation of the stone column foundation.

Instructions on how to place large stones at the base of the foundation and compact the layers with sand.

The use of anstamping to establish the position of the foundation and the importance of layering the stones correctly.

Mixing the concrete with a specific ratio and the method of placing it on the stone layer.

The arrangement of stones to ensure a strong bond between them and the avoidance of alignment in the same line for structural integrity.

Preparation of steel reinforcement with a diameter of 8 liters to be used as a tie against the stone column.

Inspection of the shallow foundation work to ensure it meets technical specifications and the work plan.

Advice on redoing the stone placement if it is not compact, as it can lead to fatal damage to the overall building structure.

The backfilling process after the completion of the shallow foundation work, including the use of tools for measuring and compacting the soil.

Final words of encouragement from Andi Mulyono, inviting the audience to practice the installation of a shallow stone column foundation with given specifications.