【正文】
面層或基層材料被車輪帶走 ,而逐步形成坑洞 ,并不斷的擴大,最后形成坑槽。同時,瀝青面層鋪筑前透層油的灑布尤為重要,透層油灑布前首先必須認(rèn)真清掃基層表面浮土及雜物并且保證透層油灑布的均勻性和設(shè)計用量,提高基層與面層的粘結(jié)力。 充分壓實橫向接縫?;旌狭现袨r青用量過多或空隙率過小 ,在車輛荷載反復(fù)作用下 ,多余瀝青由下部泛到路表形成泛油。 唧漿:當(dāng)水透入瀝青面層并滯留在半剛性基層頂面時,在大量高速行車作用下,自由水產(chǎn)生很大的壓力并沖刷基層混合料表層的細(xì)料形成灰漿,灰漿又被行車壓唧,通過各種形狀不一的裂縫(縱、橫、斜裂縫及網(wǎng)裂)到路表面形成唧漿??硬鄣某梢?: 水損害在開始階段 ,遼寧省交通高等??茖W(xué)校機電系畢業(yè)論文 10 雨水由瀝青路面大空隙或破損處滲入 ,停留在基層表面上 ,在行車荷載反復(fù)作用下,水沖刷半剛性基層的細(xì)料并逐漸形成灰漿 ,使瀝青面層與基層脫開 ,灰漿被行車荷載擠壓 ,通過面層裂縫或面層混合料中的空隙唧到表面??v向加寬沒有按照要求進行施工,或者碾壓沒有達到要求,從而造成加寬部位沉降,產(chǎn)生縱向裂縫。從公路發(fā)展的速度 來看,我國公路客運已成為主要的客運方式,公路貨運量遠(yuǎn)遠(yuǎn)超過其他運輸方式,這充分說明公路運輸方式在國民經(jīng)濟及社會發(fā)展過程中發(fā)揮著愈來愈重要的作用。 關(guān)鍵詞: 瀝青路面 路面病害 病害防治 遼寧省交通高等專科學(xué)校機電系畢業(yè)論文 3 Abstract: Along with the rapid development of our country road construction, of the asphalt pavement construction to be universal application. The asphalt pavement is smooth, solid, no juncture, short construction period and maintenance convenient wait for an advantage, make traffic noise is low, smooth and fortable. But as the volume of traffic of the growth and heavyload overload the increase in vehicles, plus due to temperature and humidity changes and dehydrating action, design, construction, using materials and maintenance management of the factors such as asphalt pavement appeared a variety of diseases, such as structural damage cracks, asphalt crack, loose and water damage etc. Male asphalt pavement mon disease problem is one of the mon faults of road engineering, the article mainly introduces asphalt pavement to some mon diseases, expounds the asphalt pavement and the causes of cracks and puts forward the corresponding measures for preventing the crack appeared available for design and construction of asphalt reference. According to the longterm attractors among asphalt actual situation investigation, talk about the asphalt pavement of mon diseases and prevention measures. [Keywords]: asphalt pavement road diseases disease control 遼寧省交通高等??茖W(xué)校機電系畢業(yè)論文 4 目 錄 前言 ....................................................................................................... 6 1 瀝青路面常見病害及原因分析 ........................................................ 7 瀝青路面的橫向裂縫 ................................................................ 7 瀝青路面的縱向裂縫 ................................................................ 8 瀝青路面的網(wǎng)裂 ........................................................................ 8 瀝青路面的松散 ......................................................................... 9 瀝青路面的坑槽 ........................................................................ 9 瀝青路面的車轍 .......................................................................10 瀝青路面的凍脹和翻漿 ............................................................10 瀝青路面的水損害 ................................................................... 11 瀝青路面的泛油 ........................................................................12 2 瀝青路面常見病害的防治措施 .........................................................14 瀝青路面裂縫的防治措施 ..............................................................14 瀝青路面松散現(xiàn)象的防治措施 .................................................15 瀝青路面車轍的防治措施 .........................................................15 瀝青路面凍脹與翻漿的防治措施