Pit sand is primarily obtained by excavating natural deposits found in the soil, specifically by forming pits at least 1 to 2 meters deep.
Understanding Pit Sand Origin
Pit sand is a type of natural sand, meaning it isn't manufactured through industrial processes like crushed stone sand. Instead, it occurs naturally within the Earth's crust as deposits embedded within the soil layers.
The Excavation Process
The defining characteristic of how pit sand is made available or obtained lies in its extraction method. As the name suggests, the process involves digging pits to access the sand layers.
Here's a breakdown of the typical excavation steps based on its definition:
- Locating Deposits: Pit sand is found in specific deposits in the soil. These are areas where natural geological processes have concentrated sand particles.
- Forming Pits: To reach these deposits, pits are formed in the soil. This involves removing the topsoil and overburden (layers of earth above the sand).
- Excavating Sand: The sand is then excavated from these pits.
- Depth Requirement: A key detail is that the pits are dug to a significant depth – at least 1 to 2 meters deep. This minimum depth is likely necessary to reach the quality sand layers found beneath the surface soil.
This table summarizes the extraction method:
| Aspect | Description |
|---|---|
| Source | Natural deposits in the soil |
| Method | Excavation by forming pits |
| Minimum Depth | At least 1 to 2 meters |
In essence, pit sand isn't "made" in a factory; it's a natural material that is harvested from the ground through a specific deep excavation technique.
