發(fā)布時(shí)間：2019-05-20 02:54

【摘要】：寧常鎮(zhèn)溧高速公路自2007年10月通車運(yùn)營以來,交通量逐年增加,且貨車比例不斷升高,超載、超限運(yùn)輸現(xiàn)象嚴(yán)重。在交通和環(huán)境等因素作用下,路面車轍深度增加,路面破損日趨嚴(yán)重,破損類型有裂縫、坑槽、松散等。因此有必要對(duì)寧常鎮(zhèn)溧高速公路通車以來的交通量及軸載特征進(jìn)行系統(tǒng)的分析,了解掌握該高速公路的實(shí)際使用狀況,分析交通軸載對(duì)寧常鎮(zhèn)溧高速公路瀝青路面性能的影響,從而為該公路的養(yǎng)護(hù)管理提供可靠依據(jù)。本文在查閱大量國內(nèi)外相關(guān)文獻(xiàn)及研究成果的基礎(chǔ)上,采用了寧常鎮(zhèn)溧高速公路路面管理系統(tǒng)(PMS)的數(shù)據(jù)進(jìn)行分析。首先對(duì)寧常鎮(zhèn)溧高速公路沿線按照互通、樞紐分布特征劃分為14個(gè)斷面,對(duì)各斷面歷史交通量進(jìn)行統(tǒng)計(jì),結(jié)合寧常鎮(zhèn)溧的交通組成,分析軸載譜組成和軸載特性。然后,對(duì)寧常鎮(zhèn)溧高速公路車道系數(shù)和輪跡橫向分布系數(shù)進(jìn)行分析。因不同類型車輛的行駛特性有著較大的差異,交通量軸載在不同車道上的分布是存在明顯差異的。對(duì)車道分布系數(shù)進(jìn)行分析,能夠確定軸載在各個(gè)車道的分布。最后,對(duì)寧常鎮(zhèn)溧高速公路路面歷年檢測數(shù)據(jù)及路面使用性能進(jìn)行評(píng)價(jià),并著重對(duì)路面的破損進(jìn)行分段分車道的統(tǒng)計(jì)分析。在此基礎(chǔ)上,根據(jù)軸載譜參數(shù)分布規(guī)律、車道分布系數(shù)及交通組成,并結(jié)合路面結(jié)構(gòu)的影響因素,對(duì)寧常及鎮(zhèn)溧兩條高速各選擇一個(gè)典型的道路斷面進(jìn)行軸載與路面使用性能的模擬回歸分析,得到各方向不同車道裂縫發(fā)展模型,并據(jù)此總結(jié)交通量軸載對(duì)路面使用性能的影響。
[Abstract]:Since the opening of Ningchang Town Li Expressway in October 2007, the traffic volume has increased year by year, and the proportion of freight cars has been increasing, overloading and exceeding the limit transportation phenomenon is serious. Under the action of traffic and environment, the rut depth of pavement increases, the pavement damage is becoming more and more serious, and the damage types are cracks, potholes, loose and so on. Therefore, it is necessary to make a systematic analysis of the traffic volume and axle load characteristics of Ningchang Town Li Expressway since it was opened to traffic, to understand and master the actual use of the expressway, and to analyze the influence of traffic axle load on the performance of asphalt pavement of Ningchang Town Li Expressway. Thus, it provides a reliable basis for the maintenance and management of the highway. On the basis of consulting a large number of relevant literature and research results at home and abroad, this paper analyzes the data of Ningchang Town Li Expressway pavement Management system (PMS). Firstly, according to the interworking and hub distribution characteristics along Ningchang Town Li Expressway, the distribution characteristics of the hub are divided into 14 sections. The historical traffic volume of each section is counted. Combined with the traffic composition of Ningchang Town Li, the axial load spectrum composition and axial load characteristics are analyzed. Then, the lane coefficient and wheel track transverse distribution coefficient of Ningchang Town Li Expressway are analyzed. Because of the great differences in the driving characteristics of different types of vehicles, the distribution of traffic volume axle load in different lanes is obviously different. The analysis of lane distribution coefficient can determine the distribution of shaft load in each lane. Finally, the pavement test data and pavement performance of Ningchang Town Li Expressway over the years are evaluated, and the statistical analysis of pavement breakage is carried out. On this basis, according to the distribution law of axial load spectrum parameters, lane distribution coefficient and traffic composition, and combined with the influencing factors of pavement structure, A typical road section of Ningchang and Zhenli highways is selected for the simulation regression analysis of axial load and pavement performance, and the development models of cracks in different lanes in different directions are obtained. Based on this, the influence of traffic volume axle load on pavement performance is summarized.
【學(xué)位授予單位】：東南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：U416.2

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本文編號(hào)：2481285