Continuous monitoring of mining induced strain in a road pavement using fiber Bragg grating sensors

被引：26

作者：

Nosenzo G. ^{[1
]}

Whelan B.E. ^{[2
]}

Brunton M. ^{[2
]}

Kay D. ^{[3
]}

Buys H. ^{[4
]}

机构：

[1] Monitor Optics Systems Limited, Terenure, Dublin 6

[2] Monitor Optics Systems Pty Ltd, Chatswood, NSW 2067

[3] Mine Subsidence Engineering Consultants, Chatswood, NSW 2067

[4] AECOM, Sydney, NSW 2000

来源：

Photonic Sensors | 2013年 / 3卷 / 02期

关键词：

distributed sensors; fiber Bragg grating; monitoring; pavement strain; Sensing;

D O I：

10.1007/s13320-012-0077-0

中图分类号：

学科分类号：

摘要：

This paper describes the application of fiber Bragg grating (FBG) based sensors for monitoring road pavement strains caused by mining induced ground subsidence as a result of underground longwall coal mining beneath a major highway in New South Wales, Australia. After a lengthy planning period, the risks to the highway pavement were successfully managed by the highway authority and the mining company through a technical committee. The technical committee comprised representatives of the mining company, the highway authority and specialists in the fields of pavement engineering, geotechnical engineering and subsidence. An important component of the management strategy is the installation of a total of 840 strain and temperature sensors in the highway pavement using FBG arrays encapsulated in glass-fiber composite cables. The sensors and associated demodulation equipment provide continuous strain measurements along the pavement, enabling on-going monitoring of the effects of mining subsidence on the pavement and timely implementation of planned mitigation and response measures to ensure the safety and serviceability of the highway throughout the mining period. © 2012 The Author(s).

引用

页码：144 / 158

页数：14

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