Remedial Measures for Houses Damaged by Expansive Clay.

摘要

Phase I of the research contract involves corrective measures to be applied to a carefully selected sample of 10existing residences that have shown evidence of seasonal foundation failure. All residences were identified by the HUD Dallas Area Office. Five of these residences are founded upon the Eagle Ford Shale formation, a very active clay foundation soil. The other five houses selected are founded upon the Taylor Marl formation,another active soil. Both formations have residual clay soils from the Geologic Gulf series of the Cretaceous Age and are neritic marine deposits. Volcanic materials are prominent and bentonite is widespread in many levels. Activities reported herein are identified in the referenced Statement of Work as the portion of Tasks 2, 3,and 4of Phase I, 'Remedial Measures for Houses Damaged by Expansive Clay.'Under Task 2is the requirement for adequate field sampling of the soils in the vicinity of each of the 10houses. Task 3activities included laboratory support and determination of soil properties. Task 4includes the field surveys for existing conditions of the dwelling,installing instrumentation,installing leveling points around the house perimeter and for installation of a permanent benchmark for data reference.