In which soil structure are the particles arranged more or less parall...
Dispersed Structure: In the case of dispersed structure, the particles will have face to face contact. This type of formation is due to net electrical forces between adjacent soil particles at the time of deposition being repulsive in nature. This type of structure is common in fresh water deposits.
Flocculated Structure: In the case of flocculated structure there will be edge to edge and edge to face contact between the particles. This type of formation is due to the net electrical forces between the adjacent particles at the time of deposition being attractive in nature.
Honeycomb Structure: This type of structure is associated with silt deposits. When silt particles settle out of suspension, in addition to gravitational forces the surface forces also play a significant role.
When particles approach the lower region of suspension they will be attracted by particles deposited as well as the neighbouring particles leading to the formation of arches.
Single grained: This type of structure will be found in the case of coarse grained soil deposits. When such soils settle out of suspension in water, the particles settle independently of each other.
The major force causing their deposition is gravitational and surface forces are too small to produce any effect.
There will be particle-to-particle contact in the deposit.
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In which soil structure are the particles arranged more or less parall...
Soil Structure
Soil structure refers to the arrangement of soil particles that affects the physical and engineering properties of the soil. There are five types of soil structure, namely single grained, honeycomb, flocculent, dispersed, and blocky.
Dispersed Soil Structure
In dispersed soil structure, the soil particles are arranged more or less parallel to each other. This type of structure is also known as a random structure. The particles are not arranged in any particular pattern, and they do not adhere to each other. Dispersed soil structure is common in clay soils.
Characteristics of Dispersed Soil Structure
The following are the characteristics of dispersed soil structure:
- The soil particles are not arranged in any particular pattern.
- The particles are not bonded to each other.
- The soil has poor permeability and drainage.
- The soil is prone to erosion.
- The soil has poor load-bearing capacity.
Dispersed soil structure is undesirable for engineering purposes because of its poor physical properties. It can lead to settlement, instability, and failure of structures built on it. Therefore, it is essential to identify the soil structure before designing any construction project to avoid any potential problems.
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