کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
310783 533368 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical modeling and experimental evaluation of a time domain UWB technique for soil void detection
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
پیش نمایش صفحه اول مقاله
Numerical modeling and experimental evaluation of a time domain UWB technique for soil void detection
چکیده انگلیسی

A growing percentage of waste and storm water conveyance systems are approaching or exceeded their design life, suffering from accelerated deterioration and subsequently increased rates of failure. Discontinuities in the pipe wall may lead to the formation of voids in the soil embedment surrounding it via the transportation of fine soil particles by infiltrating ground water. This paper describes a method that utilizes ultra wideband (UWB) time domain principles to detect the presence and location of soil voids in early stages of formation, thus preventing a catastrophic collapse of the pipe and/or a structure above it (e.g., road surface). A three dimensional numerical model simulating the propagation of UWB pulses within a buried pipeline was developed. The results from the numerical model were validated using experimental measurements performed utilizing a full scale test bed. It is shown that a UWB based sensory system is capable of detecting even minor voids around non-ferrous buried pipes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tunnelling and Underground Space Technology - Volume 25, Issue 6, December 2010, Pages 652–659
نویسندگان
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