unstable soil

unstable soil

Earth material that, because of its nature or the influence of related conditions, cannot be depended upon to remain in place without extra support, such as would be furnished by a system of shoring.
References in periodicals archive ?
Construction delays were driven by unstable soil in the early stages of construction, which caused subsequent delays in earthwork and other items.
This could be explained by the soil flooding conditions imposed in the PCs, which may collapse the more unstable soil aggregates (Moret-Fernandez et al.
All 182 inhabitants of the village of Anargyroi, north-west Greece, have been housed in hotels after leaving their homes, some of which are already collapsing in the unstable soil, a village official said.
Due to unstable soil and steep topography, commonly seen in many parts of Guatemala, the countrys National Coordinator for the Reduction of Disasters (CONRED) recently declared the La Cuchilla village to be high risk.
Investigators determined the excavation was improperly braced because the shoring was spaced too far apart to handle unstable soil.
Drawbacks to waiting can cause delays in progress due to delivery times and reduction of pipe production in wet and unstable soil conditions.
Leaking water can wash away unstable soil from around a building's foundations, for example.
Steady morning downpours created unstable soil conditions, prompting a rock slide on the Fujairah-Khor Fakkan Road which led to authorities blocking the vital route in and out of the area, authorities said.
The soft story buildings most likely to collapse are those built on street corners or unstable soil.
The flexible capabilities of the adopted EPB-TBM and the dedicated tunneling procedures allowed good boring performances even in the challenging, complex and unstable soil conditions encountered.
As much as 90 percent of Haiti's construction is done without an architect or engineer, and much of it on unstable soil, according to a study last year by the Canadian Journal of Civil Engineering.
These include persistent bad weather and unstable soil, which threatened the collapse of the well.