【摘要】：八十年代以來,公路建設(shè)進(jìn)入了高潮期,到2012年初,我國(guó)高速公路總路程達(dá)8.5萬公里,且瀝青路面約占85%。但隨著公路使用年限的延長(zhǎng),瀝青路面在環(huán)境影響及行車荷載的不斷作用下,使用性能不斷下降,因此說需要養(yǎng)護(hù)的工程量越來越多,越來越困難。這種條件下,高速公路預(yù)防性養(yǎng)護(hù)就顯得尤為重要。要實(shí)現(xiàn)高效、科學(xué)和節(jié)約的養(yǎng)護(hù)工作,滿足公路管理者及公路使用者兩方面的需求,確保高速公路的使用性能,就需進(jìn)行路面的預(yù)防性養(yǎng)護(hù)。路面預(yù)防性養(yǎng)護(hù)就是在適合的時(shí)期內(nèi),運(yùn)用合理的手段對(duì)相關(guān)路面進(jìn)行養(yǎng)護(hù)處理,并使得路面的微小病害得到預(yù)防,進(jìn)而得到有效處理,且預(yù)防性養(yǎng)護(hù)使得路面不易產(chǎn)生重大病害,能保持路面的良好的使用性能,節(jié)省路面養(yǎng)護(hù)時(shí)間及資金。首先,本文給出了相關(guān)高速公路預(yù)防性養(yǎng)護(hù)概念,并給出了瀝青路面預(yù)防性養(yǎng)護(hù)的重大意義,指出了預(yù)防性養(yǎng)護(hù)的原則及特點(diǎn)。再次,本研究從路面病害的原因及類型為出發(fā)點(diǎn),在微觀和宏觀標(biāo)準(zhǔn)上指出了預(yù)防性養(yǎng)護(hù)標(biāo)準(zhǔn)及相關(guān)技術(shù)的使用特點(diǎn),并簡(jiǎn)要介紹了微表處、碎石封層和稀漿封層等相關(guān)技術(shù),并研究了預(yù)防性養(yǎng)護(hù)技術(shù)使用的抉擇,包括養(yǎng)護(hù)措施和養(yǎng)護(hù)時(shí)機(jī)的選擇,以保障路面的使用性能。最后,根據(jù)國(guó)內(nèi)外瀝青路面使用性能預(yù)測(cè)模型的優(yōu)缺點(diǎn),采用神經(jīng)網(wǎng)絡(luò)中的BP網(wǎng)絡(luò)模型,建立適用于本文的高速公路預(yù)防性養(yǎng)護(hù)使用性能預(yù)測(cè)模型,并得到很好效果。
[Abstract]:Since 1980s, highway construction has entered a period of high tide. By the beginning of 2012, the total distance of highway in China has reached 85,000 kilometers, and the asphalt pavement accounts for about 85%. However, with the prolongation of the service life of the highway, the performance of asphalt pavement decreases continuously under the influence of environment and driving load. Therefore, it is more and more difficult to maintain more and more projects. Under this condition, highway preventive maintenance is particularly important. In order to achieve efficient, scientific and economical maintenance, to meet the needs of both highway managers and highway users, and to ensure the performance of the highway, it is necessary to carry out preventive maintenance of the road surface. Pavement preventive maintenance is to use reasonable means to maintain the relevant pavement in a suitable period, and to prevent the small disease of the pavement, and then get the effective treatment. Preventive maintenance makes the pavement not easy to produce major diseases, can maintain the good performance of pavement, save the maintenance time and funds. Firstly, the concept of preventive maintenance of expressway is given, and the significance of preventive maintenance of asphalt pavement is given, and the principles and characteristics of preventive maintenance are pointed out. Thirdly, starting from the causes and types of pavement diseases, this study points out the characteristics of preventive maintenance standards and related technologies in micro-and macro-standards, and briefly introduces the micro-surfacing, gravel seal and slurry sealing techniques, and so on. The choice of preventive maintenance technology, including maintenance measures and maintenance timing, is studied in order to ensure the performance of pavement. Finally, according to the advantages and disadvantages of domestic and foreign asphalt pavement performance prediction model, the BP network model of neural network is used to establish the highway preventive maintenance performance prediction model which is suitable for this paper, and the result is very good.
【學(xué)位授予單位】：長(zhǎng)安大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：U418.6;U416.217

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本文編號(hào)：2462509