本文關(guān)鍵詞： 深水 軟土地基 防波堤 安全監(jiān)測　出處：《天津大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：離岸深水防波堤承受復(fù)雜、惡劣的水文地質(zhì)條件。天然軟土地基作為離岸深水防波堤最常見的基礎(chǔ)形式，其強度和變形難以滿足工程需求，需要進(jìn)行加固處理。調(diào)研結(jié)果表明，當(dāng)前對于適宜環(huán)境條件下的軟基監(jiān)測研究較多，而對于相對惡劣的離岸深水軟基監(jiān)測研究較少；測控自動化發(fā)展刻不容緩。 針對以上問題，筆者通過文獻(xiàn)調(diào)研及自身經(jīng)驗，歸納總結(jié)了離岸深水軟基條件下，監(jiān)測系統(tǒng)的核心技術(shù)，包括監(jiān)測項目、監(jiān)測目的、測點布設(shè)原則、常用儀器的主要性能、儀器工作原理、儀器埋設(shè)流程及安裝注意事項、測量技術(shù)、精度分析等內(nèi)容；介紹了測控自動化系統(tǒng)在離岸深水軟基監(jiān)測中的應(yīng)用，以及水下測控自動化的重難點——儀器保護(hù)，對比了測控自動化技術(shù)與傳統(tǒng)測控技術(shù)的優(yōu)缺點并介紹了離岸深水軟基監(jiān)測的控制標(biāo)準(zhǔn)。 本文結(jié)合三個工程實例，說明了在深水軟基監(jiān)測中，，建立相應(yīng)的監(jiān)測體系、設(shè)置齊全的監(jiān)測內(nèi)容、保證準(zhǔn)確的儀器埋設(shè)、獲取精確可靠的觀測數(shù)據(jù)對于控制施工進(jìn)度、確保地基安全穩(wěn)定的重要作用；實例中監(jiān)測方案的選定、監(jiān)測儀器設(shè)備的加工埋設(shè)、自動測控數(shù)據(jù)采集及相關(guān)結(jié)果分析方法等，可以為相似的工程項目提供有效借鑒；實踐證明，由自動測控、水下無線傳輸系統(tǒng)二者構(gòu)成的測控自動化系統(tǒng)具有非常廣泛的應(yīng)用價值和推廣前景。
[Abstract]:Offshore deep-water breakwater is subjected to complex and bad hydrogeological conditions. As the most common foundation form of offshore deep-water breakwater, the strength and deformation of natural soft soil foundation are difficult to meet the engineering needs. At present, there are more researches on soft foundation monitoring under suitable environmental conditions, but less on the relatively bad offshore soft foundation monitoring, so it is urgent to develop the automation of measurement and control. In view of the above problems, the author summarizes the core technology of the monitoring system under the condition of offshore deep water soft foundation through literature investigation and own experience, including monitoring project, monitoring purpose, measuring point setting principle, main performance of commonly used instruments, etc. This paper introduces the application of measurement and control automation system in the monitoring of soft foundation in offshore deep water, and the protection of instrument, which is the most important and difficult point of underwater measurement and control automation, such as the working principle of instrument, the procedure of instrument installation and the matters needing attention in installation and installation, measurement and control technology, precision analysis, etc. The advantages and disadvantages of automation technology and traditional technology are compared, and the control standard of offshore soft foundation monitoring is introduced. Combined with three engineering examples, this paper shows that in the monitoring of deep water soft foundation, the corresponding monitoring system is established, the complete monitoring content is set up, the accurate instrument is embedded, and the accurate and reliable observation data are obtained to control the construction progress. It is important to ensure the safety and stability of foundation, such as the selection of monitoring scheme, the processing and embedding of monitoring instruments and equipments, the automatic data acquisition and the analysis of related results, etc., which can provide effective reference for similar engineering projects. The practice shows that the automatic measurement and control system composed of automatic measurement and control and underwater wireless transmission system has very wide application value and popularization prospect.
【學(xué)位授予單位】：天津大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U656.2;U655.54

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