Non-Destructive Inspection for Tunnel Lining Concrete with Small Void by Using Ultrasonic

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Tunnel Lining Concrete with Small Void by Using Ultrasonic</title> <meta name="description" content="Non-Destructive Inspection for Tunnel Lining Concrete with Small Void by Using Ultrasonic"> <meta name="keywords" content="tunnel, lining concrete, void, non-destructive inspection, ultrasonic"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img 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publication-listing mt-3 mb-3"> <h5 class="card-header" style="font-size:.9rem">Non-Destructive Inspection for Tunnel Lining Concrete with Small Void by Using Ultrasonic</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yasuyuki%20Nabeshima">Yasuyuki Nabeshima</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Many tunnels which have been constructed since more than 50 years were existing in Japan. Lining concrete in these tunnels have many problems such as crack, flacking and void. Inner void between lining concrete and rock was very hard to find by outside visual check and hammering test. In this paper, non-destructive inspection by using ultrasonic was applied to investigate inner void. A model concrete with inner void was used as specimen and ultrasonic inspection was applied to specify the location and the size of void. As a result, ultrasonic inspection could accurately find the inner void. <iframe src="https://publications.waset.org/abstracts/74615.pdf" style="width:100%; height:400px;" frameborder="0"></iframe> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=tunnel" title="tunnel">tunnel</a>, <a href="https://publications.waset.org/abstracts/search?q=lining%20concrete" title=" lining concrete"> lining concrete</a>, <a href="https://publications.waset.org/abstracts/search?q=void" title=" void"> void</a>, <a href="https://publications.waset.org/abstracts/search?q=non-destructive%20inspection" title=" non-destructive inspection"> non-destructive inspection</a>, <a href="https://publications.waset.org/abstracts/search?q=ultrasonic" title=" ultrasonic"> ultrasonic</a> </p> <a href="https://publications.waset.org/abstracts/74615/non-destructive-inspection-for-tunnel-lining-concrete-with-small-void-by-using-ultrasonic" class="btn btn-primary 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Non-Destructive Inspection for Tunnel Lining Concrete with Small Void by Using Ultrasonic