矸石浆体输送管道堵塞监测与识别方法

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中图分类号：TD67 文献标志码：A

Monitoring and identification method for gangue slurry transportation pipeline blockage

LI Jiahao1，JIWenli1，ZHANGDingding²，MAChenyang² （1.SchoolofCommunicationandInformationEngineering，Xi'anUniversityofScienceandTechnology，Xian70600， China；2.SchoolofEnergyEngineering，Xi'an UniversityofScienceandTechnology，Xi'an71oo54，China）

Abstract： In underground backfiling technology，long-distance pipeline transportation of gangue slurry is prone to problems such as sedimentation and blockage.At present， point-based acquisition and local observation methodsare mostly used tomonitor the pipeline transportation state，which makes it difficult to achieve continuouscoverageand accurate localizationof anomalies along long-distance pipelines.Toaddress this problem，Distributed Acoustic Sensing （DAS） based on phase-sensitive optical time-domain reflectometry was adopted to achieve full-fieldcontinuousmonitoring of blockage conditions in gangue slurry transportation pipelines.A gangue slurry transportation pipeline blockage experimental platform was established to simulate normal transportation as well as blockage conditions of 20% 。（剩余16379字）