本文選題：病害分布 + 裂縫��； 參考：《長(zhǎng)安大學(xué)》2015年碩士論文

【摘要】：隨著我國(guó)公路建設(shè),特別是高速公路建設(shè)的快速發(fā)展,我國(guó)的高速公路通車(chē)?yán)锍桃苍谥鹉昱噬?同時(shí)也造成公路養(yǎng)護(hù)維修任務(wù)不斷加重,養(yǎng)護(hù)方面研究的需求越來(lái)越迫切,如何進(jìn)行科學(xué)養(yǎng)護(hù),能否做到安全、高效、高質(zhì)量地進(jìn)行養(yǎng)護(hù)作業(yè),且有效地降低成本完成養(yǎng)護(hù)任務(wù)更是至關(guān)重要。本文基于西銅高速公路的整治維修工程,對(duì)西銅高速公路K-2+150~K82+146路段上下行車(chē)道和超車(chē)道路面進(jìn)行現(xiàn)場(chǎng)調(diào)查、檢測(cè)分析,歸納得出路面裂縫、車(chē)轍等各病害規(guī)律及成因。介紹了我國(guó)高速公路瀝青路面使用性能狀況指標(biāo)及其判斷標(biāo)準(zhǔn),基于我國(guó)瀝青路面綜合性能評(píng)價(jià)模型,并提出模糊數(shù)學(xué)模型進(jìn)行評(píng)價(jià)。依據(jù)路面病害調(diào)查結(jié)果以及路面狀況評(píng)價(jià)數(shù)據(jù),制定了西銅高速公路的整治措施。根據(jù)調(diào)查數(shù)據(jù)對(duì)路面產(chǎn)生病害分布規(guī)律與路面性能評(píng)價(jià)進(jìn)行了分析,研究成果如下:1)歸納總結(jié)了西銅高速公路各種病害的分布特點(diǎn)和規(guī)律。其中病害主要為橫向裂縫、縱向裂縫、網(wǎng)裂、坑槽、車(chē)轍�？v縫、橫縫的分布波動(dòng)性較大且很不均勻,橫縫數(shù)量遠(yuǎn)遠(yuǎn)大于縱縫數(shù)量。同時(shí)全線均呈現(xiàn)出不同程度的車(chē)轍,上下行車(chē)道車(chē)轍較超車(chē)道引起的車(chē)轍病害要小。2)從裂縫類(lèi)、松散類(lèi)、變形類(lèi)三方面對(duì)西銅高速公路病害成因進(jìn)行了分析,結(jié)果表明:本路段橫向裂縫主要是由于基層反射裂縫作用下導(dǎo)致的,縱向裂縫的產(chǎn)生主要是由于路面剪切破壞引起的失穩(wěn)性車(chē)轍。而車(chē)轍產(chǎn)生主要是由于過(guò)重的形成荷載造成。3)分析現(xiàn)有路用性能綜合評(píng)價(jià)體系各個(gè)分項(xiàng)評(píng)價(jià)指標(biāo)、評(píng)價(jià)公式,從功能性能方面,進(jìn)一步細(xì)化評(píng)價(jià)指標(biāo)。提出了應(yīng)用模糊函數(shù)對(duì)瀝青路面性能進(jìn)行綜合評(píng)價(jià),并以K31+000~K41+000路段為實(shí)例進(jìn)行模糊評(píng)價(jià),評(píng)價(jià)結(jié)果與現(xiàn)有評(píng)價(jià)方法相符和。該評(píng)價(jià)方法能夠應(yīng)用于高速公路養(yǎng)護(hù)決策中路面使用性能的綜合評(píng)價(jià)中。4)對(duì)西銅高速公路進(jìn)行整治設(shè)計(jì),提出整治方案與道路病害處理方法。其中以SBR改性乳化瀝青和密封膠對(duì)路面進(jìn)行橫向裂縫和縱向裂縫修補(bǔ);對(duì)于嚴(yán)重裂縫、坑槽等病害,采用銑刨16cm路面結(jié)構(gòu)后,鋪10cmATB—25下面層,在鋪筑6cm AC-20C瀝青中面層和4cmAC-13C的方法進(jìn)行修補(bǔ)處理。
[Abstract]:With the rapid development of highway construction in China, especially the highway construction, the mileage of freeway traffic is rising year by year. At the same time, the task of highway maintenance and maintenance is becoming more and more serious, and the need for maintenance research is becoming more and more urgent. How to carry out scientific maintenance, whether it can be safe, efficient, high quality maintenance operation, and effectively reduce the cost to complete the maintenance task is even more important. Based on the renovation and maintenance project of Xi-Cu Expressway, this paper investigates the upper and lower carriageways and overtaking roads of Xi-Cu Expressway K-2 150 and K82 146 on the spot, detects and analyses, and concludes the rules and causes of various diseases such as pavement cracks, ruts and so on. This paper introduces the performance index and judgment standard of expressway asphalt pavement in China, based on the comprehensive performance evaluation model of asphalt pavement in China, and puts forward a fuzzy mathematical model for evaluation. According to the survey results of pavement diseases and the evaluation data of pavement condition, the improvement measures of Xi-Tong Expressway were established. Based on the investigation data, the distribution law of pavement diseases and the evaluation of pavement performance are analyzed. The research results are as follows: 1) the distribution characteristics and laws of various diseases in Xi-Cu Expressway are summarized and summarized. The main diseases are transverse cracks, longitudinal cracks, net cracks, pits, ruts. The distribution of longitudinal and transverse joints is large and uneven, and the number of transverse joints is much larger than the number of longitudinal joints. At the same time, all the tracks show different degrees of rutting, and the rutting disease caused by the upper and lower lane ruts is smaller than that caused by overtaking roads (.2). The causes of the diseases of Xi-Cu Expressway are analyzed from three aspects: crack type, loose type and deformation type. The results show that the transverse cracks in this section are mainly caused by the reflection cracks of the base course, and the longitudinal cracks are mainly caused by the unstable ruts caused by the shear failure of the pavement. The rutting is mainly caused by heavy load. 3) the evaluation index and formula of the existing comprehensive evaluation system of road performance are analyzed, and the evaluation index is further refined from the aspect of functional performance. The fuzzy function is used to evaluate the performance of asphalt pavement. Taking K31000 / K41,000 as an example, the evaluation results are consistent with the existing evaluation methods. The evaluation method can be applied to the comprehensive evaluation of pavement performance in expressway maintenance decision. The pavement was repaired with SBR modified emulsified asphalt and sealant for transverse and longitudinal cracks, and for serious cracks, potholes and other diseases, after milling and planing 16cm pavement structure, 10 cm ATB-25 lower layer was laid. The method of repairing 6cm AC-20C asphalt middle surface and 4 cmAC-13C was carried out.
【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(lèi)號(hào)】：U418

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