基于光纤光栅传感技术的深井井壁结构监测

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Abstract Research purposes: The security of the shaft is the prerequisite for a coal mine to run safely and efficiently．Long － term security monitoring of shaft is particularly important to prevent its great loss caused by the sudden destruction and to know the stress state． Fiber bragg grating ( FBG) sensors have better reliability and stability in the gushing water and complex electromagnetic environment conditions． The kilometer deep vertical shaft lining structure was monitored in long － term with FBG sensors． The shaft mechanical characteristics in deep and gushing water condition is to be mastered，which can provide the basis to evaluate the security of the shaft．

Research conclusions: The kilometer deep shaft lining structure was monitored with FBG sensors． After a complete cycle of monitoring，the temperature and strain changing regularity was obtained in the surface soil segment and the bedrock segment of the shaft． The shaft is easier to fracture in the summer，because the temperature strain achieves its maximum during June to October． Applying the FBG sensing technology to monitoring the deep shaft lining structure under the condition of large water spray provides a new and stable technical scheme for the shaft lining deformation monitoring．And it greatly promotes the technology innovation of the shaft lining long － term monitoring under complex stratum conditions． In addition，it also has important directive significance for the other geotechnical monitoring projects in complex stratum．

Key words： shaft lining structure monitoring kilometers deep vertical shaft

Received: 22 May 2011

PACS:

TD265

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	HAN Tao
	HUANG Jia － hui
	LI Jian － qing

Cite this article:

HAN Tao,HUANG Jia － hui,LI Jian － qing. Monitoring of Deep Shaft Lining Structure Using the Fiber Bragg Grating Sensing Technology[J]. 铁道工程学报, 2011, 28(11): 88-92.

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http://tdgcxb.crec.cn/EN/ OR http://tdgcxb.crec.cn/EN/Y2011/V28/I11/88

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