Proof-of-Concept Shear Wave Velocity Measurements Using an Unmanned Autonomous Aerial Vehicle

• DOI: 10.1061/9780784413272.093
• Publication Date: 2014-03-25T10:39:42Z
• Authors: Dimitrios Zekkos; Jerome D. Lynch; Andhika Sahadewa; Mitsuhito Hirose; Danny Ellis
• Keywords: Geophone; Hammer; Wave velocity

The feasibility of using an unmanned autonomous aerial vehicle (UAAV) for the performance shear wave velocity measurements is investigated. Proof-of-concept tests UAAV developed at University Michigan were performed two sites, and results are presented. Tests first indoor sand pit facility that was filled with Ottawa to a depth 3.7 m (12 ft). A second test outdoors, stiffer soil site near campus. multichannel analysis surface waves method (MASW) implemented array 16 geophones. Conventional testing hammer as source. Additional source 0.18 kgr (0.4 lb) mass dropped by from elevation approximately 3 (9.5 Comparison made on basis measured dispersion curves interpreted profiles. techniques very similar, indicating this technology has promise characterization tool. wireless sensor also placed adjacent wired evaluate network these tests. It shown signals sensors essentially identical.