本文選題：河道堤防 + 多波束條帶測(cè)深技術(shù)��； 參考：《水利水電技術(shù)》2017年04期

【摘要】：針對(duì)河道堤防水面線以下的表觀病害具有隱蔽性、難于探測(cè)和發(fā)現(xiàn)的特點(diǎn),將多波束條帶測(cè)深技術(shù)和雙頻識(shí)別聲吶技術(shù)相組合,實(shí)現(xiàn)了準(zhǔn)確布置計(jì)劃測(cè)線確保水下外觀病害全覆蓋掃測(cè)。通過(guò)在雙頻識(shí)別聲吶換能器上安置GPS接收機(jī),基于位置信息將病害中心位置在多波束點(diǎn)云圖上準(zhǔn)確地標(biāo)示出來(lái),從而彌補(bǔ)了兩種技術(shù)各自的局限性,并在工程實(shí)踐中開(kāi)展應(yīng)用。實(shí)踐表明,選擇波束角小的多波束條帶測(cè)深系統(tǒng),可獲取高質(zhì)量、高分辨率的數(shù)據(jù),便于發(fā)現(xiàn)細(xì)微的外觀破碎、剝落等病害。在多波束掃測(cè)工作中船速不宜太快,應(yīng)控制在5節(jié)以內(nèi),同時(shí)聲吶探測(cè)時(shí)應(yīng)平行水流方向布置測(cè)線。工程實(shí)例表明,將兩種技術(shù)組合在一起,能準(zhǔn)確發(fā)現(xiàn)水下破損、塌陷等表觀病害。研究成果為類似工程的病害探測(cè)和除險(xiǎn)加固提供技術(shù)支撐。
[Abstract]:In view of the fact that the apparent diseases below the water surface line of the river embankment are hidden and difficult to detect and discover, the multi-beam strip sounding technique and the dual-frequency sonar technology are combined. The accurate layout of the measuring lines is realized to ensure the full coverage of underwater appearance diseases. By placing GPS receiver on the dual-frequency sonar transducer, the disease center position is accurately marked out on the multi-beam cloud map based on the position information, which makes up for the limitation of the two technologies and is applied in engineering practice. The practice shows that selecting the multi-beam sounder system with small beam angle can obtain high quality and high resolution data, and it is convenient to find fine appearance breakage and spalling diseases. The ship speed should not be too fast and should be controlled within 5 knots in the multi-beam scanning and sonar detection should be parallel to the direction of the water flow. The engineering example shows that the combination of the two techniques can accurately detect the apparent diseases such as underwater damage and collapse. The research results provide technical support for disease detection and reinforcement of similar projects.
【作者單位】： 江蘇省水利科學(xué)研究院;
【分類號(hào)】：TV871.4

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