Metode Pelaksanaan Bendungan Raknamo Kupang, Nusa Tenggara Timur (Tugas Besar MPPK)

Summary

This video script outlines the detailed construction process of the Raknamo Dam in Kupang, Nusa Tenggara Timur. It discusses key stages such as land preparation, excavation, concrete work, and the installation of vital infrastructure like bridges, gates, and electrical systems. The dam's construction follows a strategic approach considering weather conditions and efficient equipment usage. Emphasis is placed on the integration of heavy machinery and material handling, while ensuring safety measures are met. The project also includes crucial elements like water intake systems and flood control, aimed at maximizing the dam's functionality for irrigation, energy generation, and water supply.

Takeaways

• 😀 The dam's primary function is to store excess water during the rainy season for irrigation, flood control, and hydroelectric power generation.
• 😀 The construction process is divided into four major phases: preparation, core construction, concrete work, and final works.
• 😀 Preparation phase includes land acquisition, setting up field offices, and establishing systems for water supply and telecommunication.
• 😀 Core construction involves the building of tunnels, spillways, and other key infrastructure elements of the dam.
• 😀 Concrete work for the main dam structure will require around 39,000 cubic meters of concrete, produced on-site and transported to the construction area.
• 😀 Heavy machinery, such as excavators, bulldozers, and cranes, will be used for excavation and material transportation.
• 😀 The dam will have a side spillway designed to manage water overflow, with a total length of 284.5 meters.
• 😀 Hydro-mechanical components include intake towers, floodgates, and water control systems to manage water flow effectively.
• 😀 A new access road of 3.4 km will be constructed to connect the dam site to the nearby village.
• 😀 The project will involve constructing both temporary and permanent facilities, including housing for workers and offices for project management.
• 😀 Electricity for the project will be supplied by the national electricity company (PLN), with backup generators provided for emergency power needs.

Q & A

What is the main purpose of constructing a dam as described in the script?

The main purpose of constructing a dam is to support human activities by storing excess water during rainy seasons and providing resources such as raw water, irrigation, flood control, and even hydroelectric power generation (PLTA).

What are the four key phases in the construction of the Raknamo Dam?

The four key phases of the Raknamo Dam construction are: 1) Preparation work (land clearance, site office, laboratory setup), 2) Construction work (tunnel, spillway, dam structure), 3) Earthwork (soil and rock filling), and 4) Completion and operation, including finishing work and hydromechanical installation.

What are some of the key materials required for the dam construction?

The key materials for constructing the dam include soil, gravel, and various types of concrete. Additionally, heavy machinery like excavators and bulldozers is necessary for excavation and site preparation.

What challenges are associated with the weather, and how do they affect the construction?

Weather conditions such as heavy rain during the rainy season affect the timing and execution of tasks, especially earthworks and concrete pouring. Construction work may need to continue regardless of seasonal changes, but some tasks, like concrete work, require specific weather conditions to ensure proper curing.

How are earthworks, like excavation and soil compaction, managed on-site?

Earthworks are managed using excavators, bulldozers, and blasting methods for rock excavation. The excavated materials are then transported by trucks to designated areas like the dam embankment or construction site.

What is the expected volume of concrete needed for the dam construction, and how is it handled?

A total of approximately 39,000 cubic meters of concrete is required for the dam construction. The concrete is produced at a batching plant and transported to the site using mixers with a 3.2 cubic meter capacity.

What are the main types of hydromechanical components included in the dam project?

The main hydromechanical components include intake towers, spillway gates, sluice gates, and control valves. These components are essential for regulating water flow and ensuring the dam's functionality.

How is the construction of the access road planned for the Raknamo Dam?

A new access road, 3.4 km long, will connect the dam site to nearby villages. This road will be critical for transporting materials and personnel to the construction site and will be built to accommodate the needs of the project.

What electrical systems are being set up for the dam construction?

The electrical systems include the supply of power from the national grid (PLN), as well as backup generators powered by diesel engines to ensure uninterrupted power for the construction and operation of the dam.

How are the concrete pouring and compaction processes carried out during construction?

Concrete pouring is carried out systematically, with concrete compacted using vibration tools to remove air bubbles. The surface of the concrete is kept moist to facilitate proper curing, ensuring the durability and strength of the dam structure.