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首頁> 美國(guó)衛(wèi)生研究院文獻(xiàn)>Sensors (Basel Switzerland) >Measurements of the Vertical Displacements of a Railway Bridge Using TLS Technology in the Context of the Upgrade of the Polish Railway Transport
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Measurements of the Vertical Displacements of a Railway Bridge Using TLS Technology in the Context of the Upgrade of the Polish Railway Transport

機(jī)譯：在波蘭鐵路運(yùn)輸升級(jí)的背景下使用TLS技術(shù)測(cè)量鐵路橋梁的垂直位移

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The railway system in Poland is undergoing technological transformation. The development of the Polish railway system concerns not only high-speed trains but also infrastructure. The steel bridge is the most popular type of railway bridge in Poland. Most of them were built in the 1950s and 1960s. According to the recommendations in place in Western Europe, such railway bridges should be reviewed in terms of their fitness for use with modern high-speed trains. The modern technological revolution affects not only the railway, but also developments in displacement and deformation measurement techniques. New technologies provide more objective measurement results and accelerate results processing. They also facilitate the non-contact measurement of bridge structure stability. The authors investigated the vertical displacement of an old steel railway bridge in three different, specific case studies of terrestrial laser scanning data application. Then, the results of 3D data were compared with traditional land surveying results. The scientific results led to a conclusion that a strictly determined methodology of the measurement and analysis of a terrestrial laser scanner results supported by traditional land surveying techniques facilitates the determination of the vertical displacement of bridges with acceptable accuracy.
機(jī)譯：波蘭的鐵路系統(tǒng)正在經(jīng)歷技術(shù)改造。波蘭鐵路系統(tǒng)的發(fā)展不僅涉及高速列車，還涉及基礎(chǔ)設(shè)施。鋼橋是波蘭最受歡迎的鐵路橋類型。其中大多數(shù)建于1950年代和1960年代。根據(jù)西歐已有的建議，應(yīng)就此類鐵路橋梁與現(xiàn)代高速火車配合使用的適用性進(jìn)行審查?，F(xiàn)代技術(shù)革命不僅影響鐵路，而且影響位移和變形測(cè)量技術(shù)的發(fā)展。新技術(shù)可提供更客觀的測(cè)量結(jié)果并加快結(jié)果處理速度。它們還有助于橋梁結(jié)構(gòu)穩(wěn)定性的非接觸式測(cè)量。作者在三種不同的，具體的地面激光掃描數(shù)據(jù)應(yīng)用案例研究中研究了舊鋼鐵路橋梁的垂直位移。然后，將3D數(shù)據(jù)的結(jié)果與傳統(tǒng)的土地測(cè)量結(jié)果進(jìn)行比較?？茖W(xué)結(jié)果得出的結(jié)論是，由傳統(tǒng)的土地測(cè)量技術(shù)支持的嚴(yán)格確定的測(cè)量和分析地面激光掃描儀結(jié)果的方法有助于確定橋梁的垂直位移，且精度可接受。

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