本文關(guān)鍵詞：混凝土路面脫空雷達(dá)檢測(cè)及處治關(guān)鍵技術(shù)研究　出處：《重慶交通大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 水泥混凝土路面 脫空 雷達(dá)檢測(cè) 沖擊碾壓 MHB

【摘要】：水泥混凝土路面板的常見病害包括面板斷裂破碎、路面變形、接縫剝落、脫空唧泥、坑洞等，而斷裂破碎、錯(cuò)臺(tái)坑洞等病害幾乎都與板底脫空有關(guān)，表明水泥混凝土路面板脫空的維修和改造技術(shù)的研究至關(guān)重要。這方面的研究?jī)H僅停留在早期的研究方法，而且部分理論研究的內(nèi)容距應(yīng)用實(shí)施還存在距離。因此，繼續(xù)深入研究水泥混凝土路面板底脫空問題，重點(diǎn)研究分析板底脫空的檢測(cè)方法、評(píng)價(jià)標(biāo)準(zhǔn)及處治技術(shù)等問題，對(duì)于水泥混凝土路面的進(jìn)一步發(fā)展，，具有很大的經(jīng)濟(jì)效益和社會(huì)效益。 本文針對(duì)以上研究現(xiàn)狀，依托四川省水泥混凝土路面大修關(guān)鍵技術(shù)科研課題展開分項(xiàng)研究，主要開展板底脫空檢測(cè)理論、評(píng)定原則、處治工藝的效果方面的分析研究，具體內(nèi)容如下： ①闡述了電磁波的傳播特性和地質(zhì)雷達(dá)的工作原理，提出舊水泥混凝土路面脫空雷達(dá)檢測(cè)體系和方法，針對(duì)雷達(dá)檢測(cè)板底脫空檢測(cè)參數(shù)進(jìn)行選擇和設(shè)置，得出路面雷達(dá)檢測(cè)板底脫空步驟。 ②通過研究探地雷達(dá)圖像特征提取和目標(biāo)識(shí)別理論方法，對(duì)檢測(cè)獲得的剖面圖進(jìn)行了數(shù)據(jù)處理和圖像解釋，提取正常路面和脫空路面的雷達(dá)剖面圖特征。 ③對(duì)于地質(zhì)雷達(dá)和規(guī)范推薦的彎沉檢測(cè)脫空的方法，進(jìn)行技術(shù)經(jīng)濟(jì)對(duì)比，表明雷達(dá)進(jìn)行水泥混凝土路面脫空檢測(cè)具有較好的工程應(yīng)用效果。 ④從適用范圍、技術(shù)要求、儀器參數(shù)、測(cè)試步驟方面提出雷達(dá)檢測(cè)水泥混凝土板底脫空的推薦試驗(yàn)方法，得出雷達(dá)剖面圖像識(shí)別脫空的判別標(biāo)準(zhǔn)。 ⑤提出兩種適合路況的板底脫空處治技術(shù)：沖擊破碎方案和MHB錘擊破碎方案。通過對(duì)不同工藝的施工效果比較，提出板底脫空處治質(zhì)量控制的指標(biāo)和標(biāo)準(zhǔn)，得出各自的適用范圍。
[Abstract]:The common diseases of cement concrete pavement include slab breakage, pavement deformation, joint spalling, voids, pothole, and so on. However, breakage, staggered pothole and other diseases are almost related to slab bottom void. It shows that the maintenance and reconstruction technology of cement concrete pavement slab is very important, and the research on this aspect is only in the early research methods. And part of the theoretical research is still far away from the application of the implementation. Therefore, continue to study the cement concrete pavement floor voids, focusing on the analysis of the detection method of slab floor voids. The evaluation standard and treatment technology have great economic and social benefits for the further development of cement concrete pavement. In view of the above research status this paper relies on the key technology of Sichuan cement concrete pavement overhaul scientific research to carry out a sub-research mainly to carry out the detection theory of slab bottom void evaluation principles. The analysis and research of the effect of treatment technology are as follows: The main contents are as follows: 1. The propagation characteristics of electromagnetic wave and the working principle of the ground penetrating radar are expounded. The detection system and method of the old cement concrete pavement void detection radar are put forward, and the parameters of the radar detection for the void detection of the slab bottom are selected and set. The steps of pavement radar detecting the void in the bottom of the board are obtained. (2) by studying the theory and method of GPR image feature extraction and target recognition, the data processing and image interpretation of the detected profile are carried out, and the radar profile features of normal road surface and empty pavement are extracted. (3) the comparison of technology and economy between GPR and the method recommended by the standard for detecting the void of deflection shows that the detection of void in cement concrete pavement by radar has good engineering application effect. (4) from the aspects of applicable range, technical requirements, instrument parameters and test steps, the recommended test method for radar detection of void in cement concrete slab is put forward, and the discriminant standard of radar profile image recognition is obtained. 5 put forward two kinds of plate bottom emptying treatment technology suitable for road condition: impact crushing scheme and MHB hammer crushing scheme, through the comparison of construction effect of different technology. The index and standard of quality control of plate bottom void treatment are put forward, and their respective applicable scope are obtained.
【學(xué)位授予單位】：重慶交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U416.216

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