Tian Xu – Specialty Devices Inc.

Pre-Dredge Bathymetric and Sub-bottom Survey of a pond at a golf course

Tian Xu — Wed, 21 Feb 2018 19:46:06 +0000

Background Specialty Devices, Inc. (SDI) was contracted by ENVIROdredge to perform a pre-dredge bathymetric and sub-bottom survey of one of the flood control ponds located in Burning Tree Country Club, Greenwich, Connecticut. The survey objective was to map the existing water bottom and sediment bottom by combining an acoustic bathymetric survey and vibracore sampling. Survey The

Hydrographic Survey of A River Channel in Texas

Tian Xu — Tue, 20 Feb 2018 23:16:51 +0000

Background SDI was contracted by an Engineering Firm to perform an acoustic bathymetric and sub-bottom survey at a river channel in north Texas. The aim of this survey is to determine the present water bottom and sediment bottom elevation as well as sediment thickness distribution at the survey time. Survey A Hemisphere S320 / A325 RTK

Geohazard Assessment of A Lake Dam in Texas by Acoustic Multibeam Survey

Tian Xu — Tue, 06 Feb 2018 20:36:40 +0000

Background In order to perform a geohazard assessment, such as detecting and evaluating erosional and depositional patterns, across the dam area of a lake in Texas, SDI conducted an acoustic multibeam survey in 2017. Survey A Teledyne Odom ES3 multibeam echosounder was adopted to carry out the acoustic survey. The multibeam echosounder operates at a

Geomorphology and Bank Erosion Study of A River in South Texas

Tian Xu — Fri, 02 Feb 2018 21:50:44 +0000

Background Bank erosion along a river in South Texas has damaged or threatened houses, roadways, and public facilities for decades. SDI was contracted by an Engineering company to provide equipment and technology to map the river geomorphology and bank characteristics for a 3.3-mile study area. The collected data was used for providing detailed measurements of erosion