發(fā)布時間：2018-01-11 22:36

  本文關(guān)鍵詞：采場覆巖變形分布式光纖測量研究　出處：《煤炭科學(xué)技術(shù)》2017年10期 　論文類型：期刊論文

  更多相關(guān)文章： 相似材料模擬試驗 分布式光纖傳感技術(shù) 覆巖移動變形 空間分辨率

【摘要】：為了研究分布式光纖傳感技術(shù)在采場相似材料模擬試驗檢測中的適用性,將BOTDA和PPP-BOTDA兩種分布式光纖傳感技術(shù)應(yīng)用于采場相似材料模擬試驗覆巖移動變形的測量。在模型內(nèi)水平埋設(shè)2根傳感光纖用于檢測巖層變形,試驗分2個階段進行,分別采用不同的分布式光纖傳感技術(shù)測量巖層移動變形,并將二者的測量結(jié)果與巖層移動狀態(tài)、百分表、全站儀、巖層垮落寬度進行了對比分析。試驗表明,分布式光纖傳感技術(shù)能夠?qū)崿F(xiàn)采場相似材料模擬試驗的分布式測量,其結(jié)果能和巖層移動狀態(tài)、百分表、全站儀良好對應(yīng),巖層垮落寬度測量準確;儀器空間分辨率直接影響模型試驗測量結(jié)果準確性,具備高空間分辨率的PPP-BOTDA分布式光纖傳感技術(shù)更適用于相似材料模擬試驗的分布式測量。
[Abstract]:In order to study the applicability of distributed optical fiber sensing technology in the simulated test of stope similar materials. Two distributed optical fiber sensing techniques, BOTDA and PPP-BOTDA, are applied to measure the movement and deformation of overburden in the simulation test of stope similar materials. Two sensing optical fibers are embedded horizontally in the model to detect the strata. Deformation. The experiment is divided into two stages. Different distributed optical fiber sensing techniques are used to measure the displacement and deformation of rock stratum, and the results of the measurement and the state of rock layer movement, percentile and total station are presented. The results show that the distributed optical fiber sensing technology can realize the distributed measurement of similar material simulation test in stope, and the results can be compared with the rock strata moving state and percentile table. The total station has a good correspondence, and the width of rock collapse is accurate. The spatial resolution of the instrument directly affects the accuracy of the measurement results of the model test. The PPP-BOTDA distributed optical fiber sensing technology with high spatial resolution is more suitable for the distributed measurement of the simulation test of similar materials.
【作者單位】： 西安科技大學(xué)能源學(xué)院;中煤科工集團重慶研究院有限公司;西部礦井開采及災(zāi)害防治教育部重點實驗室;
【基金】：國家自然科學(xué)基金資助項目(41027002;51174280) 高等學(xué)校博士學(xué)科點專項科研基金資助項目(20126121110003)
【分類號】：TD325;TN253;TP212
【正文快照】： 3.西部礦井開采及災(zāi)害防治教育部重點實驗室,陜西西安710054)引用格式:王正帥,柴敬,黃旭超,等.采場覆巖變形分布式光纖測量研究[J].煤炭科學(xué)技術(shù),2017,45(10):196-202.WANG Zhengshuai,CHAI Jing,HUANG Xuchao,et al.Research on overlying strata deformation based on distr，

本文編號：1411568