本文關鍵詞：基于江西南部地區(qū)溫度條件的瀝青路面健康性能預測　出處：《長安大學》2015年博士論文　論文類型：學位論文

  更多相關文章： 瀝青路面 健康監(jiān)測 溫度場 動態(tài)模量 力學響應

【摘要】：目前的路面性能檢測主要是定期的人工檢測,局限性比較多,且僅當路面表面病害出現(xiàn)后才能檢測,難以及時的發(fā)現(xiàn)路面結(jié)構(gòu)的內(nèi)部損傷。其屬于對路面損傷結(jié)果的檢測,而非對可能出現(xiàn)損傷的預測,因此基礎上制定的預防性養(yǎng)護措施,也只屬于路面產(chǎn)生病害后的常規(guī)養(yǎng)護,并非真正意義上的預防性養(yǎng)護。因此需要發(fā)展利用傳感器和損傷識別技術(shù)進行結(jié)構(gòu)響應與狀態(tài)的在線檢測,同時能夠?qū)崟r的識別路面性能狀態(tài)和潛在的損傷。本文據(jù)此提出瀝青路面的健康監(jiān)測理念和評價體系,為路面的設計、施工、試驗和維修決策提供性能狀態(tài)信息和科學決策依據(jù)。主要的研究內(nèi)容如下:針對瀝青路面損傷類型和原因,對瀝青路面的控制破壞模式進行調(diào)研,半剛性基層瀝青路面的兩種典型的控制損壞模式為:開裂和永久變形。對于開裂類損壞,主要的控制破壞模式為半剛性基層的疲勞開裂、瀝青層的疲勞開裂;永久變形的控制破壞模式主要是瀝青層的變形。結(jié)合國內(nèi)外相關研究的基礎上,提出瀝青路面健康檢測評價體系,對現(xiàn)行瀝青路面的評價預估模型進行調(diào)研和選擇。健康性能識別時可通過半剛性基層\面層層底的拉應力(變)、瀝青面層的車轍通過各分層的豎向壓應力的監(jiān)測來識別。提出基于全時域內(nèi)的路面健康監(jiān)測方法,論述了路面全時域疊加路面損傷分析思路和方法。通過在江西南部地區(qū)高速公路上實測的溫度場數(shù)據(jù),對瀝青路面的溫度效應和晴天、多云、降雨等天氣形態(tài)下的路面溫度場分布進行研究;分析了平原區(qū)、丘陵區(qū)和山區(qū)三種地形條件下的溫度場分布特征和路堤、路塹等局地地形條件對路面的溫度效應,對瀝青路面內(nèi)部的溫差和溫度梯度分布規(guī)律進行統(tǒng)計。根據(jù)實測結(jié)果建立了三種地形條件下的溫度預估模型和溫度調(diào)整系數(shù)。瀝青混合料的動態(tài)模量是力學經(jīng)驗設計方法體系中非常關鍵的材料設計參數(shù)。對溫度與頻率影響動態(tài)模量的規(guī)律研究,給出了SMA-13、AC-20、ATB-25瀝青混合料的動態(tài)模量主曲線。借助Witczak動態(tài)模量的預估模型,根據(jù)實際路面溫度場的測試,對路面各層混合料動態(tài)模量進行溫度修正,并對實測溫度場下各瀝青層的動態(tài)模量分布特征進行分析。依據(jù)現(xiàn)場力學響應結(jié)果,建立了基于動態(tài)模量的瀝青路面力學分析模型。對比分析了單軸荷載和多軸荷載作用下路面力學響應影響,考察了荷載、速度、溫度及路面不平度對路面力學響應的影響,并對不同行車速度和路面深度下的荷載作用頻率進行研究。根據(jù)實測的溫度場,依據(jù)瀝青混合料動態(tài)模量隨溫度的變化規(guī)律,分析了正負溫差路面的力學響應、日溫度分布的力學響應、月極端溫度的路面力學響應和不同天氣狀態(tài)下瀝青路面的力學響應。基于響應面方法,研究了層位溫度與路面力學響應的關系,對層位溫度的敏感性進行分析。而后建立了溫度—荷載—行車速度共同作用下的路面力學響應預測模型。并對實時溫度下的瀝青路面健康狀態(tài)進行了預測。分析了對現(xiàn)有養(yǎng)護決策的不足,提出了基于瀝青路面健康監(jiān)測的養(yǎng)護決策方法。
[Abstract]:At present, the pavement performance test is mainly manual inspection regularly and limitations more, and only when the pavement surface can be detected, it is difficult to discover the internal damage of pavement. It belongs to the detection results of pavement damage, rather than the possible damage prediction, preventive maintenance measures therefore formulated on the basis of the road is only a kind of routine maintenance of disease, is not the true sense of the preventive maintenance. So we need the development of on-line detection of structural response and state using sensor and damage identification technology, and state recognition of pavement performance and potential damage to real time. This paper puts forward the concept of asphalt pavement health monitoring and evaluation system for pavement design, construction, provide the performance information and scientific decision-making on the basis of test and maintenance decision. The main contents are as follows: Based on the asphalt The pavement damage types and causes, the failure mode control of asphalt pavement research, two typical control of semi-rigid asphalt pavement damage model: cracking and permanent deformation. The cracking damage, fatigue failure modes of the main control for semi rigid base crack, fatigue cracking of asphalt layer; permanent deformation control the failure mode is the main deformation of asphalt layer. Based on relevant research at home and abroad, put forward asphalt pavement health testing evaluation system, evaluation of the current asphalt pavement prediction model research and selection of health. When can identify the semi-rigid surface bottom layer tensile stress (strain), monitoring of asphalt surface the rutting compressive stress by vertical layers to identify. Put forward pavement health monitoring method based on the time domain, the time domain road pavement damage superposition analysis ideas and methods. In the southern Jiangxi area temperature field data measured on the highway, the temperature effect on the asphalt pavement and sunny, cloudy, the pavement temperature field distribution of rainfall and other weather patterns; analysis of the plain area, the temperature field of three kinds of terrain in Hilly and mountainous areas of the distribution and the temperature effect on the embankment. Road cutting and other local terrain conditions, the statistics of the asphalt pavement internal temperature and temperature gradient distribution was established. According to the experimental results of three kinds of terrain conditions of temperature prediction model and temperature adjustment coefficient. The dynamic modulus of asphalt mixture material design is the most crucial parameters system of mechanics empirical method. Study on dynamic law the modulus of the influence on the temperature and frequency are SMA-13, AC-20, ATB-25 asphalt mixture dynamic modulus master curve of dynamic modulus prediction model. With the help of Witczak, based on When the temperature field of pavement pavement test, each layer of mixture dynamic modulus of temperature correction, and the dynamic characteristics of the measured temperature field under the asphalt layer modulus distribution were analyzed. On the basis of field mechanical response results, established the analysis model of Asphalt Pavement Based on dynamic modulus was analyzed. The influence of pavement mechanical uniaxial load and multi axial loads, effects of load, speed, temperature and surface roughness influence on the response of the pavement, and carry on the research of load frequency on different vehicle speed and depth of pavement. According to temperature measurement, based on the dynamic modulus of asphalt mixture with temperature variation, analysis of mechanical response positive and negative temperature of pavement, the mechanical response on temperature distribution, mechanical response of asphalt pavement on pavement mechanical response to extreme temperatures and different weather conditions. Based on response surface method, Study on the relationship between temperature and mechanical response of pavement layer, layer temperature sensitivity to were analyzed. Then build the pavement mechanical interaction of temperature - load speed response prediction model. And the real-time temperature of asphalt pavement condition was predicted. The analysis of the existing issues of maintenance decision, is proposed asphalt pavement maintenance decision method based on health monitoring.

【學位授予單位】：長安大學
【學位級別】：博士
【學位授予年份】：2015
【分類號】：U416.217

【參考文獻】

相關期刊論文 前10條

1 趙延慶;潘友強;黃榮華;;基于動態(tài)模量的瀝青路面力學響應分析[J];重慶交通大學學報(自然科學版);2008年01期

2 殷立文;丁靜聲;;荷載接觸面形狀對瀝青路面力學響應的影響[J];重慶交通大學學報(自然科學版);2010年04期

3 郭儀南;張宏超;王健;路賀偉;;城市熱島效應對瀝青路面溫度場及其力學性能的影響[J];重慶交通大學學報(自然科學版);2010年04期

4 周家斌,黃嘉佑;現(xiàn)代統(tǒng)計氣象學的進展[J];地球科學進展;1991年02期

5 竇毅芳;劉飛;張為華;;響應面建模方法的比較分析[J];工程設計學報;2007年05期

6 曾峰;張肖寧;;瀝青混凝土路面預防性養(yǎng)護對策選擇[J];公路;2007年08期

7 李強,潘玉利;路面快速檢測技術(shù)與設備研究進展及分析[J];公路交通科技;2005年09期

8 秦健;孫立軍;;國外瀝青路面溫度預估方法綜述[J];中外公路;2005年06期

9 葉家瑋,吳鵬,鄭國梁;基于路面雷達的路面結(jié)構(gòu)缺陷檢測方法[J];華南理工大學學報(自然科學版);2004年09期

10 舒富民;錢振東;;移動荷載作用下瀝青路面的動力響應分析[J];交通運輸工程與信息學報;2007年03期

相關博士學位論文 前2條

1 李海濱;基于半剛性基層適應性的瀝青路面結(jié)構(gòu)研究[D];長安大學;2010年

2 莊傳儀;基于加速加載響應的柔性基層瀝青路面設計指標與參數(shù)研究[D];長安大學;2012年

相關碩士學位論文 前2條

1 王曉潔;基于光纖光柵傳感器的瀝青路面性能監(jiān)測研究[D];南京航空航天大學;2010年

2 鄒會宗;瀝青混合料動態(tài)模量試驗研究[D];長安大學;2013年

，

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