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Procedure for Assembling WES Column-Based Soil Stress Gages.
ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS STRUCTURES LAB
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This report describes the present procedure used in the fabrication of WES column-based soil stress gages along with a complete set of machine drawings. The gage is capable of both static and dynamic stress measurements up to 50 ksi in various types of soils. It has been laboratory- and field-evaluated in several soil types, and is being used routinely for soil stress measurement by the Waterways Experiment Station. There is no known commercially available counterpart. The design of the WES CBS gage is based on classical load-cell geometry, i. e., the elastic compression of a column. The gage has been designed to respond in a linear, elastic manner to loads in excess of 50 ksi. This was accomplished by making the gage very stiff and removing as little as possible of the interior to accomodate the sensing elements and wiring. The transducer consists of two pieces a msssive body and a small cap section which includes the strain-gaged column sensing element.
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