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Sudden and frequent changes in groundwater levels destabilise the swelling and contraction of the foundational soil.
With increased frequency and quantities of rain in some areas, water flows and pools in the soil can result in the washing away and softening of foundational soil.
In extreme drought, humans and vegetation extract water from the groundwater, as the pressure changes the soil becomes unstable, causing fissures, cracks and sinkholes.
Learn more about how climate change is expected to impact Australian property.
Learn more about how climate change is expected to impact New Zealand property.
Learn more about how climate change is expected to impact property in Canada.
Learn more about how climate change is expected to impact property in America.
Learn more about how climate change is expected to impact property in Europe.
Learn more about how climate change is expected to impact property in the United Kindgom.
Soil type, precipitation records and surrounding vegetation all impact the risk of soil subsidence. The Climate Risk Engines analyse the risk of soil subsidence due to drought using information on annual precipitation records, soil types and surrounding vegetation.
Extreme drought may contribute to the shrinking of foundational soil, while extreme rainfall events may cause swelling.
Expansive soils such as reactive clay are sensitive to fluctuations in moisture levels and can cause sinking while sandy soils can dry out and cause destabilisation.
Vegetation with high water consumption can exacerbate the “shrink-swell” effect while complex root systems may cause instability to building foundations.
The type of foundation used for a property is key in determining its susceptibility to damage due to soil subsidence. While the materials used for foundations are important, the physical design of the foundation is the distinguishing factor.
The deeper the foundational pillars can reach, the more stability they can offer the property. Deeper foundations generally reach depths of more than 3 metres, can bear more weight and are better suited to weaker ground. Buildings on light strip footings or unstiffened slabs are vulnerable to soil movement as they have a lower weight-bearing capacity and can be at risk of movement.
The type of foundation used for a property is key in determining its susceptibility to damage due to soil subsidence. While the materials used for foundations are important, the physical design of the foundation is the distinguishing factor.
The deeper the foundational pillars can reach, the more stability they can offer the property. Deeper foundations generally reach depths of more than 3 metres, can bear more weight and are better suited to weaker ground. Buildings on light strip footings or unstiffened slabs are vulnerable to soil movement as they have a lower weight-bearing capacity and can be at risk of movement.
The type of foundation used for a property is key in determining its susceptibility to damage due to soil subsidence. While the materials used for foundations are important, the physical design of the foundation is the distinguishing factor.
The deeper the foundational pillars can reach, the more stability they can offer the property. Deeper foundations generally reach depths of more than 10 feet (3 meters), can bear more weight and are better suited to weaker ground. Buildings on light strip footings or unstiffened slabs are vulnerable to soil movement as they have a lower weight-bearing capacity and can be at risk of movement.
The type of foundation used for a property is key in determining its susceptibility to damage due to soil subsidence. While the materials used for foundations are important, the physical design of the foundation is the distinguishing factor.
The deeper the foundational pillars can reach, the more stability they can offer the property. Deeper foundations generally reach depths of more than 10 feet (3 metres), can bear more weight and are better suited to weaker ground. Buildings on light strip footings or unstiffened slabs are vulnerable to soil movement as they have a lower weight-bearing capacity and can be at risk of movement.
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