Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/42545
Title: Field Jet Erosion Tests on Benbrook Dam, Texas
Authors: Wibowo, Johannes L.
López-Soto, Jamie F.
Keywords: Erodibility
Soil
Soil mechanics
Dams
Jet
Erosion
Soil erosion
Erosion testing
Earth dams--Testing
Earth dams--Texas
Publisher: Geotechnical and Structures Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Technical Report (Engineer Research and Development Center (U.S.)) ; no. ERDC/GSL TR-21-39
Abstract: This report summarizes the results of eight field Jet Erosion Tests (JETs) performed on Benbrook Dam, TX. The results from these tests will be used by the U.S. Army Corps of Engineers, Fort Worth District, in assessments of the erosion resistance of the Benbrook Dam with regards to possible overtopping by extreme flooding. The JETs were performed at four different locations, i.e., two locations at the lowest crest elevation and two locations at the mid-slope face of the downstream embankment. Variations in estimated critical hydraulic shear stress and erosion rate values may have been caused by differences in soil composition, i.e., when the material changed from silt/sand to clay. The resulting values of the Erodibility Coefficient, Kd, and Critical Stress, τc, are very useful information in assessing the stability of Benbrook Dam during an overtopping event. Because of the observed natural variability of the materials, combining the erosion parameters presented in this report with the drilling logs and local geology will be imperative for assessing erosion-related failure modes of Benbrook Dam.
Description: Technical Report
Gov't Doc #: ERDC/GSL TR-21-39
Rights: Approved for Public Release; Distribution is Unlimited
URI: https://hdl.handle.net/11681/42545
http://dx.doi.org/10.21079/11681/42545
Appears in Collections:Technical Report

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