本文關鍵詞： ATB-30 級配設計 壓實特性 疲勞特性 壽命預估　出處：《長安大學》2015年碩士論文　論文類型：學位論文

【摘要】：隨著公路建設的快速發(fā)展,針對當前我國已建成的高速公路承擔著小型車輛逐年增多、大型車輛軸載重、交通量大等特點,用密級配瀝青穩(wěn)定碎石混合料鋪筑而成的路面相對于傳統(tǒng)的半剛性材料有著溫度穩(wěn)定性好、耐久性強和抗疲勞性能優(yōu)等特點,能更好適應當前我國高速公路的建設步伐。設計良好的密級配瀝青穩(wěn)定碎石混合料不僅可以具有較高的抗疲勞特性與抗彎拉強度,而且具有較高的強度與耐久性,同時用于鋪筑路面結構可以緩解瀝青路面的反射裂縫、水損害等破壞,延長了瀝青路面使用壽命,對提高瀝青路面的使用品質具有重要的現(xiàn)實意義和經濟效益,本文通過分析國內外瀝青穩(wěn)定碎石混合料發(fā)展現(xiàn)狀,選取貝雷法設計0.9?0.6四種不同CA比級配的ATB-30,再通過SGC旋轉壓實成型試件。為了實現(xiàn)在施工中易于壓實以達到節(jié)能減排的目的,并在運營時具有良好的使用性能,本文通過密實曲線斜率和能量指數(shù)來分析壓實特性,得出當CA=0.82時施工時易于壓實,開放交通后不易產生追密變形。通過室內小梁彎曲疲勞試驗,應用Weibull概率分布,建立并分析不同可靠度下的P~S~N和P~?~N疲勞預估等效方程,以比對不同級配的ATB-30疲勞特性,得出CA比較大的級配具有較高的抗疲勞特性。因此,本文選定CA=0.82作為最佳設計級配,并從實際路面荷載間歇時間、裂縫擴展和氣候條件等影響因素,選取合適的系數(shù)來修正室內疲勞試驗,對疲勞壽命進行預估計算,為路面設計和材料選擇提供參考。
[Abstract]:With the rapid development of highway construction, according to the characteristics of the highway built in our country, the number of small vehicles is increasing year by year, the axle load of large vehicles is heavy, the traffic volume is large, and so on. Compared with the traditional semi-rigid materials, the pavement paved with asphalt stabilized macadam with dense gradation has the characteristics of good temperature stability, strong durability and excellent fatigue resistance. The compacted asphalt stabilized macadam mixture can not only have high fatigue resistance and flexural tensile strength, but also have high strength and durability. At the same time, it can alleviate the damage of reflection crack and water damage of asphalt pavement, prolong the service life of asphalt pavement, and have important practical significance and economic benefit to improve the use quality of asphalt pavement. Based on the analysis of the development situation of asphalt stabilized macadam mixture at home and abroad, this paper selects the Bailey method to design 0.9? In order to achieve the purpose of energy saving and emission reduction in construction, ATB-30 with four different CA ratios is formed by SGC rotary compaction, and it has good performance in operation. In this paper, compaction characteristics are analyzed by slope of compaction curve and energy index. It is concluded that compaction is easy when CA=0.82 is in construction and it is not easy to produce compaction deformation after opening traffic. Through indoor trabecular bending fatigue test, the probability distribution of Weibull is applied. In this paper, we establish and analyze the different reliability of Pu Sn and Pu? In order to compare the fatigue characteristics of ATB-30 with different gradation, it is concluded that the larger CA gradation has higher fatigue resistance. Therefore, CA=0.82 is chosen as the best design grade, and the actual load interval time of pavement is analyzed. The influence factors such as crack propagation and climate conditions are selected to modify the indoor fatigue test and the fatigue life is estimated and calculated to provide a reference for pavement design and material selection.
【學位授予單位】：長安大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：U414

【相似文獻】

相關期刊論文 前10條

1 張慶宇;;密級配瀝青穩(wěn)定碎石基層的應用[J];內蒙古公路與運輸;2012年05期

2 康健;;密級配瀝青穩(wěn)定碎石的施工控制[J];山西建筑;2008年21期

3 耿紅斌;賈非;侯蕓;;密級配瀝青穩(wěn)定碎石配合比設計及施工要點控制[J];公路交通科技(應用技術版);2014年05期

4 葛文紅;;密級配瀝青混凝土配合比設計質量控制與評價[J];山西交通科技;2011年04期

5 葛文紅;;密級配瀝青混凝土配合比設計中提高高溫穩(wěn)定性的方法[J];山西交通科技;2010年05期

6 孫寶珍;;密級配瀝青穩(wěn)定碎石施工關鍵技術研究[J];河南科技;2014年06期

7 馬進;劉奕;譚興友;;間斷型密級配瀝青混合料級配設計方法研究[J];西部交通科技;2011年10期

8 王喜意;;ATB-25密級配瀝青穩(wěn)定碎石混合料配合比設計與施工[J];市政技術;2009年03期

9 馮新軍;郝培文;;密級配瀝青穩(wěn)定碎石基層混合料級配設計方法[J];中國公路學報;2009年04期

10 王俏梅;劉薇;周群華;何智勇;;下面層密級配瀝青穩(wěn)定碎石(ATB-25)配合比試驗研究[J];公路;2008年12期

相關碩士學位論文 前2條

1 李駿;密級配瀝青穩(wěn)定碎石（ATB-30）組成設計與疲勞特性研究[D];長安大學;2015年

2 趙新坡;密級配瀝青穩(wěn)定碎石基層材料與性能研究[D];長安大學;2006年

，

本文編號：1554643