本文選題：預(yù)防性養(yǎng)護(hù) + 同步薄層罩面　； 參考：《長(zhǎng)沙理工大學(xué)》2014年碩士論文

【摘要】：隨著瀝青路面各項(xiàng)性能指標(biāo)的逐步衰減,為了保持其優(yōu)良的服務(wù)性能,在正確的時(shí)機(jī)采用合適的養(yǎng)護(hù)方式對(duì)其進(jìn)行養(yǎng)護(hù)維修得到越來(lái)越多的關(guān)注,因此瀝青路面預(yù)防性養(yǎng)護(hù)技術(shù)成為道路工程界的研究熱點(diǎn)之一。為此,本文依托佛山一環(huán)瀝青路面預(yù)防性養(yǎng)護(hù)工程,開(kāi)展同步薄層罩面預(yù)防性養(yǎng)護(hù)技術(shù)研究。(1)通過(guò)佛山一環(huán)舊瀝青路面病害調(diào)查表明,舊路面整體狀況良好,適合進(jìn)行預(yù)防性養(yǎng)護(hù)。據(jù)此通過(guò)對(duì)國(guó)內(nèi)外常用的養(yǎng)護(hù)措施的使用效果、施工工藝及經(jīng)濟(jì)性的對(duì)比分析顯示,同步薄層罩面較適合于佛山一環(huán)瀝青路面的預(yù)防性養(yǎng)護(hù)。為此在參考NovaChip的基礎(chǔ)上提出了同步薄層罩面瀝青混合料的級(jí)配和設(shè)計(jì)方案。(2)通過(guò)原材料性能檢驗(yàn)表明,高粘改性瀝青、聚合物改性乳化瀝青和各檔集料的性能均符合設(shè)計(jì)要求,可用于同步薄層罩面。同時(shí),采用馬歇爾設(shè)計(jì)法,并進(jìn)行路用性能檢驗(yàn),確定了同步薄層罩面瀝青混合料的目標(biāo)配合比、生產(chǎn)配合比和最佳油石比。(3)根據(jù)舊瀝青路面病害類(lèi)型和輕重程度的實(shí)際情況,提出了針對(duì)性的處治工序和工藝。通過(guò)試驗(yàn)段的施工,確定了同步薄層罩面瀝青混合料的拌和、運(yùn)輸、攤鋪、碾壓、接縫處理以及開(kāi)放交通等施工工藝。同時(shí),根據(jù)試驗(yàn)段施工情況,提出了施工注意事項(xiàng)、交工驗(yàn)收標(biāo)準(zhǔn)和外觀評(píng)定標(biāo)準(zhǔn)。(4)通過(guò)對(duì)試驗(yàn)段應(yīng)用效果檢測(cè),同步薄層罩面聚合物改性乳化瀝青灑布量、路面構(gòu)造深度、摩擦系數(shù)、滲水系數(shù)、鋪筑厚度和壓實(shí)度均符合設(shè)計(jì)要求,說(shuō)明提出的同步薄層罩面施工工藝合理,路面抗滑性能和排水性能優(yōu)良。(5)通過(guò)對(duì)國(guó)內(nèi)常用的薄層罩面混合料類(lèi)型在經(jīng)濟(jì)、技術(shù)和性能上的對(duì)比,結(jié)果表明,同步薄層罩面比SMA-13和AC-13具有施工工藝簡(jiǎn)單、對(duì)交通影響小、造價(jià)低、使用性能優(yōu)越和社會(huì)效益高的優(yōu)點(diǎn),更適合于預(yù)防性養(yǎng)護(hù)工程�？傊�,采用同步薄層罩面進(jìn)行高等級(jí)公路預(yù)防性養(yǎng)護(hù)可以有效延長(zhǎng)路面的使用壽命,產(chǎn)生較大的經(jīng)濟(jì)社會(huì)效益,因此本文的研究成果可供其他同類(lèi)工程參考。
[Abstract]:With the gradual attenuation of various performance indexes of asphalt pavement, in order to maintain its excellent service performance, more and more attention has been paid to the maintenance and repair of asphalt pavement with proper maintenance methods at the right time. Therefore, preventive maintenance technology of asphalt pavement has become one of the research hotspots in road engineering field. Therefore, based on the preventive maintenance project of Foshan first ring asphalt pavement, this paper studies the preventive maintenance technology of synchronous thin-layer overlay. (1) through the investigation of the disease of the old asphalt pavement in Foshan, it is shown that the whole condition of the old pavement is good. Suitable for preventive maintenance. Based on the comparison and analysis of the application effect, construction technology and economy of the common maintenance measures at home and abroad, it is shown that the synchronous thin layer covering is more suitable for the preventive maintenance of Foshan first ring asphalt pavement. Based on the reference of NovaChip, the gradation and design scheme of synchronous thin-layer overlay asphalt mixture is put forward. (2) the performance of high viscosity modified asphalt, polymer modified emulsified asphalt and each grade aggregate meets the design requirements through the performance test of raw materials. It can be used to synchronize thin layer covering. At the same time, Marshall design method and road performance test are used to determine the target mix ratio, production mix ratio and optimum oil stone ratio of the asphalt mixture. (3) according to the actual condition of the disease type and severity of the old asphalt pavement, The treatment procedure and process are put forward. Through the construction of the test section, the construction techniques such as mixing, transportation, spreading, rolling, joint treatment and open traffic of the asphalt mixture with synchronous thin-layer covering are determined. At the same time, according to the construction situation of the test section, the construction precautions, the acceptance standard and the appearance evaluation standard are put forward. (4) by testing the application effect of the test section, the amount of asphalt sprayed with polymer modified emulsified asphalt and the depth of pavement structure are obtained. The friction coefficient, water permeability coefficient, laying thickness and compaction degree all meet the design requirements, which shows that the construction technology of synchronous thin layer covering is reasonable. The pavement skid resistance and drainage performance are excellent. (5) by comparing the economic, technical and performance of the common thin-layer overlay mixture in China, the results show that the synchronous thin-layer overlay is simpler than SMA-13 and AC-13 in construction technology and has less influence on traffic. The advantages of low cost, superior performance and high social benefit are more suitable for preventive maintenance engineering. In short, the use of synchronous thin-layer covering for preventive maintenance of high-grade highway can effectively prolong the service life of pavement and produce greater economic and social benefits. Therefore, the research results of this paper can be used as reference for other similar projects.
【學(xué)位授予單位】：長(zhǎng)沙理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：U418.6
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本文編號(hào)：2090337