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What is important of effective stress in soil mechanics?
Effective Stress is the grain to grain contact of soil particles. the higher the effective stress, the stronger the soil. effective stress at a certain depth is calculated as follows: Effective stress = total stress - pore water pressure the pore water pressure is often taken as water table. pore water pressure has a negative effectice on effective stress, as it hinders grain to grain contact.
What is soil moisture stress?
Soil moisture stress occurs when plants do not receive adequate water from the soil to meet their physiological needs, resulting in wilting, reduced growth, and ultimately, crop yield loss. This stress can be caused by factors such as insufficient rainfall, poor irrigation practices, or high temperatures leading to increased evaporation. Monitoring and managing soil moisture levels are crucial for plant health and productivity.
How can pressure bulb of a foundation influence depth of soil investigation?
The pressure bulb of a foundation can influence the depth of soil investigation by affecting the stress distribution in the soil layers. A larger pressure bulb may result in increased stress in deeper soil layers, impacting their behavior and properties. This, in turn, may require deeper soil investigation to properly understand the soil's response to loading from the foundation.
What is quick condition in soil mechanics?
Quick Condition is a condition which arises due to presence of water/moisture in a soil mass. When the pore water pressure is so much that it equals the total stress in the soil mass then the effective stress becomes zero as a result of this and there is so force which can hold the particles together and prevent sliding away of the soil particles. In such a case the soil mass behaves almost as a liquid and there is no strength in it. For eg, the slopes in soil mass become unstable in rainy seasons and slope failures occur on account of this. As soon as the water content is reduced the soil's effective stress is increased thereby resulting in stability.
How does ice erode in soil?
Ice erodes soil through a process called frost weathering. When water seeps into cracks in the soil and freezes, it expands, causing mechanical stress on the surrounding soil particles. As the ice thaws and refreezes, this cycle continues, eventually breaking apart the soil and causing erosion.
What is important of effective stress in soil mechanics?
Effective Stress is the grain to grain contact of soil particles. the higher the effective stress, the stronger the soil. effective stress at a certain depth is calculated as follows: Effective stress = total stress - pore water pressure the pore water pressure is often taken as water table. pore water pressure has a negative effectice on effective stress, as it hinders grain to grain contact.
What is the proposal for soil improvement under shallow foundation?
I need to know about soil improvement with respect to soil stress such as adding sand cement or similar higher stress material to get better bearing capacity.
Soil liquefsction occurs when?
A state of 'soil liquefaction' occurs when the effective stress of soil is reduced to essentially zero, which corresponds to a complete loss
What is soil moisture stress?
Soil moisture stress occurs when plants do not receive adequate water from the soil to meet their physiological needs, resulting in wilting, reduced growth, and ultimately, crop yield loss. This stress can be caused by factors such as insufficient rainfall, poor irrigation practices, or high temperatures leading to increased evaporation. Monitoring and managing soil moisture levels are crucial for plant health and productivity.
How can pressure bulb of a foundation influence depth of soil investigation?
The pressure bulb of a foundation can influence the depth of soil investigation by affecting the stress distribution in the soil layers. A larger pressure bulb may result in increased stress in deeper soil layers, impacting their behavior and properties. This, in turn, may require deeper soil investigation to properly understand the soil's response to loading from the foundation.
What is difference between normally consolidated sand and over consolidated sand?
When stress is removed from a consolidated soil, the soil will rebound, drawing water back into the pores and regaining some of the volume it had lost in the consolidation process. If the stress is reapplied, the soil will re-consolidate again along a recompression curve, defined by the recompression index. Soil that has been consolidated to a large pressure and has been subsequently unloaded is considered to be overconsolidated. A soil which is currently experiencing the maximum past vertical effective stress is said to be normally consolidated.
What is soil shear wave velocity?
Soil shear wave velocity is the speed at which shear waves propagate through the soil. It is a measure of the soil's stiffness and ability to transmit shear stress. Soil shear wave velocity can be influenced by factors such as soil type, density, and moisture content.
Why the principle of effective stress important in soil mechanics?
coz at the end of structure construction soil grains are the one whic carry the load so useful in analysis of bearing capacity of granular soil
What is soil stress?
When the soil have been used a lot of times so it gets unhealthy. In other words it has been stressed out. Many Crops have been grown in it.
What is quick condition in soil mechanics?
Quick Condition is a condition which arises due to presence of water/moisture in a soil mass. When the pore water pressure is so much that it equals the total stress in the soil mass then the effective stress becomes zero as a result of this and there is so force which can hold the particles together and prevent sliding away of the soil particles. In such a case the soil mass behaves almost as a liquid and there is no strength in it. For eg, the slopes in soil mass become unstable in rainy seasons and slope failures occur on account of this. As soon as the water content is reduced the soil's effective stress is increased thereby resulting in stability.
How does ice erode in soil?
Ice erodes soil through a process called frost weathering. When water seeps into cracks in the soil and freezes, it expands, causing mechanical stress on the surrounding soil particles. As the ice thaws and refreezes, this cycle continues, eventually breaking apart the soil and causing erosion.
The quality of the soil on which the horse works is very important which hurt the horses joints and tendons the most?
A horse should have a mixture of hard and soft soil, if not it could stress or strain the tendons.
