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.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
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The Specialty Structures Division includes the former Triodetic Group with over 40 years of experience, is a design/build manufacturer of steel, aluminum and stainless steel specialty structures such as commercial domes, foundations for unstable soil conditions and flood zones, for free form structures, barrel vaults, space frames and industrial dome coverings and Spotton Corporation, a design and manufacturer of high end custom hydraulic and pneumatic valves and cylinders.
The rescue effort at the remote site on Indonesia's Sulawesi island has been hampered by steep terrain and unstable soil conditions (AFP / MANILA BULLETIN)
Makeshift wooden structures in the mine in Bolaang Mongondow district collapsed on Tuesday evening due to unstable soil.
Contractors should be careful about the location they chose to build road and they should ensure that it was not built on unstable soil as this could cause landslide, he said.
UNHCR says Chakmarkul is one of the most vulnerable Rohingya settlements: steep slopes form a precarious basin around a floodplain, which is filled with rickety homes built on unstable soil. A stream runs through its lowlands, and thousands of other homes creep up the surrounding hills.
UNHCR says Chakmarkul is one of the most vulnerable Rohingya settlements: steep slopes form a precarious basin around a flood-plain, which is filled with rickety homes built on unstable soil. A stream runs through its lowlands, and thousands of other homes creep up the surrounding hills.
However, people's demand to the government asking for the shorter road has compelled the department to work on the present road through unstable soil which is causing problems.
To expand vertically, the building also required removal of its existing column grid, insertion of a new structural steel framework, and helical piles driven deep into Philadelphia's notoriously unstable soil.
The corrosion potential of carbon steel fluctuated at an initial period due to the unstable soil environment (Figure 4).
As suggested in some previous studies [25, 26], the shear strength parameters used in the analysis are opportunely reduced by a factor of 0.75 for the potentially unstable soil mass and the failure surface, and 0.85 for the bedrock, to account for the influence of moisture.
Construction delays were driven by unstable soil in the early stages of construction, which caused subsequent delays in earthwork and other items.