Sediment deposits in waterways can build up over time, making them impassable. These ditches must be excavated to funnel water away from habitation, infrastructure, agriculture, and other areas that could be harmed. This could help to alleviate flooding or alternately, stagnation and sediment buildup.ĭrainage is related to carrying water away from areas and could include ditches, trenches, storm drains, agricultural drainage, drainage for runoff, and so on, as well as any structures related to such drainage. These materials may be used for grading, fill, or mixing with other construction materials like concrete, just for example.Ĭhannel excavation consists of removing materials from channels, drainage ditches, and so on for one of several purposes, but often to change the flow of water or increase capacity. In this type of excavation, materials like soil or gravel are taken from a “borrow” pit (sometimes called a sandbox) to be used in another location. Borrow excavation does just the opposite. In many types of excavation, materials are removed to make way for construction. This type of excavation is related to the construction of bridges and centers on removing any materials that might impede the construction of the foundations, substructures, and so on required to support the bridge. Below are thirteen common types of excavation, by both type and material.

Excavation is undertaken for a number of purposes, and different types of excavation are classified either by their specific purpose or the type of material being excavated. Types of excavation: In engineering and construction, excavation consists of using tools, equipment, or explosives for the purposes of moving soil, rocks, or other materials.

What does dredge of the earth mean