發(fā)布時(shí)間：2018-01-14 07:08

  本文關(guān)鍵詞：骨架密實(shí)型橡膠瀝青隧道鋪裝抗滑降噪性能研究　出處：《重慶交通大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 橡膠瀝青 橡膠瀝青混合料 抗滑性 阻尼減振 降噪

【摘要】：參與道路交通已經(jīng)成為人類活動(dòng)中必不可少的一部分。交通噪音已成為重大的社會(huì)問題之一。同時(shí)，交通量的增加、行車速度的加快帶來了不能忽視的行車安全問題。因此開發(fā)出一種具有良好路用性能，同時(shí)抗滑、降噪性能兼?zhèn)涞穆访�，是亟待進(jìn)行的研究。 本文依托甘肅交通廳隧道鋪裝項(xiàng)目，借鑒國內(nèi)外相關(guān)研究成果，最終提出一種骨架密實(shí)型抗滑降噪路面（Skeleton dense Anti-slip and Quiet Pavement），簡(jiǎn)稱SAQP。將粗顆粒的廢膠粉加入到間斷級(jí)配的瀝青混合料中，膠結(jié)料采用橡膠瀝青，形成類似SMA路面的骨架密實(shí)結(jié)構(gòu)，利用大顆粒橡膠粉和橡膠瀝青的綜合作用，增大路面阻尼系數(shù)，從而達(dá)到減振降噪的效果；同時(shí)具有良好的路用性能和較好的表面特性；進(jìn)一步的選用橡膠瀝青作為膠結(jié)料，在混合料拌和時(shí)摻入橡膠顆粒取代部分集料的制備方法，，即所謂的濕法和干法相結(jié)合的混合料制備方法。本文以上述思想為最初指導(dǎo)，進(jìn)行了與普通AC-13C和SMA-13混合料的路用性能和功能性的比較和分析，提出了較為新穎的路面阻尼振動(dòng)能量評(píng)價(jià)試驗(yàn)。 結(jié)論和成果如下：通過體積設(shè)計(jì)方法確定了SAQP-13級(jí)配組成，依據(jù)馬歇爾擊實(shí)方法確定了不同橡膠顆粒摻量下的馬歇爾物理力學(xué)指標(biāo)，并兼顧混合料高溫性能確定的不同摻量（1%、2%和3%）橡膠顆粒下SAQP-13的最佳油石比分別為6.0%、6.1%、6.3%。SAQP-13的高溫穩(wěn)定性能優(yōu)于兩種進(jìn)行對(duì)比的混合料類型，其中摻量為3%的SAQP-13的高溫穩(wěn)定性最好，其次為2%和1%，其動(dòng)穩(wěn)定度隨橡膠顆粒摻量從高到低分別為7351、6209、6028次/mm。SAQP-13混合料隨摻量從高到低最大彎拉應(yīng)變分別為4009με、3367με、3023με大于AC-13C（2822με），低溫抗裂性能更好，但是摻量為1%時(shí)的SAQP-13低溫應(yīng)變低于SMA-13型混合料。浸水劈裂殘留穩(wěn)定度滿足技術(shù)要求，SAQP-13浸水殘留穩(wěn)定度比AC-13C和SMA-13小。 功能性方面：SAQP型混合料構(gòu)造深度與SMA混合料處于同一水平，兩者大于采用密實(shí)型連續(xù)級(jí)配的AC混合料。摻入橡膠顆粒的SAQP混合料，在不利條件下的擺值衰減小于SMA和AC，證明其抗滑衰減性能優(yōu)于AC和SMA混合料。SAQP混合料在不同振動(dòng)頻率下的動(dòng)態(tài)模量均小于SMA和AC混合料，阻尼系數(shù)明顯大于其他兩種類型混合料。用振動(dòng)中阻尼的能量耗散功率來評(píng)價(jià)混合料，顯示出明顯優(yōu)于AC和SMA的特點(diǎn)。
[Abstract]:Participation in road traffic has become an essential part of human activities. Traffic noise has become one of the major social problems. At the same time, traffic volume has increased. The acceleration of driving speed has brought about the problem of driving safety which can not be ignored. Therefore, it is urgent to develop a road surface with good road performance, both anti-skid and de-noising performance. This paper relies on the tunnel pavement project of Gansu Department of Communications, and draws lessons from relevant research results at home and abroad. Finally, a kind of Skeleton dense Anti-slip and Quiet Pavementation is proposed. SAQP. the coarse particle waste rubber powder is added to the discontinuous gradation asphalt mixture. The binder uses rubber asphalt to form the framework dense structure similar to SMA pavement. By using the comprehensive action of rubber powder and rubber asphalt, the damping coefficient of pavement is increased, and the effect of vibration and noise reduction is achieved. At the same time, it has good road performance and better surface characteristics. Further select rubber asphalt as binder, in the mixture mixing with rubber particles to replace some of the preparation of aggregate. That is, the so-called wet process and dry process of mixture preparation method. This paper based on the above ideas as the initial guidance. The road performance and function of AC-13C and SMA-13 mixtures are compared and analyzed, and a novel evaluation test of damping vibration energy of pavement is put forward. The conclusions and results are as follows: the SAQP-13 gradation is determined by volume design method, and the Marshall physical and mechanical indexes under different rubber particle content are determined by Marshall compaction method. At the same time, the optimum SAQP-13 ratio under rubber particles is 6.0% and 6.1%, respectively. The high temperature stability of 6.30.SAQP-13 is better than that of two contrasting mixture types, in which SAQP-13 with 3% content is the best, followed by 2% and 1%. The dynamic stability is 7351t6209 with the content of rubber particles from high to low. The maximum flexural tensile strain of 6028 times / r / mm.SAQP-13 mixture is 4009 渭 蔚 ~ 3367 渭 蔚 with the content of the mixture from high to low, respectively. 3023 渭 蔚 is larger than AC-13C(2822 渭 蔚, and the crack resistance at low temperature is better. However, the low temperature strain of SAQP-13 is lower than that of SMA-13 mixture when the content is 1%, and the stability of immersed split residue meets the technical requirements. The residual stability of SAQP-13 was lower than that of AC-13C and SMA-13. In terms of functionality, the structural depth of the: SAQP-type mixture is at the same level as that of the SMA mixture, which is larger than the AC mixture with dense continuous gradation and the SAQP mixture with rubber particles. The pendulum attenuation under unfavorable conditions is less than that of SMA and AC. It is proved that the anti-slip attenuation performance of the mixture is better than that of AC and SMA mixtures. SAQP mixtures have lower dynamic modulus than SMA and AC mixtures at different vibration frequencies. The damping coefficient is obviously higher than that of the other two types of mixtures, and the energy dissipation power of damping in vibration is used to evaluate the mixture, which is obviously superior to AC and SMA.
【學(xué)位授予單位】：重慶交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U414;U416.217

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