路面攤鋪質(zhì)量的好壞直接影響到路面的整體質(zhì)量，因此，這就成為我們監(jiān)理瀝青砼路面施工過程中的重點(diǎn)。攤鋪?zhàn)鳂I(yè)質(zhì)量除了與機(jī)械本身的性能有關(guān)外，還取決于攤鋪的連續(xù)性、穩(wěn)定性、勻速性，以及供料的均衡程度等因素，所以這個(gè)階段出現(xiàn)的問題也較多，如：

The quality of road paving directly affects the overall quality of the road surface, therefore, this has become the focus of our supervision of asphalt concrete pavement construction process. The quality of paving operation is not only related to the performance of the machinery itself, but also depends on factors such as the continuity, stability, uniformity of paving, and the balance of feeding. Therefore, there are also many problems that occur at this stage, such as:

（1）瀝青砼路面厚度不均勻總是客觀存在，會(huì)引起在同一松鋪系數(shù)下不同厚度所產(chǎn)生的不同壓實(shí)效果從而影響路面平整度。所以，除了提高對(duì)基層的平整度和高程控制之外，還應(yīng)加強(qiáng)對(duì)下面層瀝青路面平整度及高程的監(jiān)督，使之有所補(bǔ)償，一層一層向上嚴(yán)格控制，直至上面層。

(1) Uneven thickness of asphalt concrete pavement always objectively exists, which can cause different compaction effects of different thicknesses under the same coefficient of loose paving, thereby affecting the smoothness of the pavement. So, in addition to improving the smoothness and elevation control of the base layer, it is also necessary to strengthen the supervision of the smoothness and elevation of the lower layer of asphalt pavement, so that it can be compensated, and strictly control layer by layer until the upper layer.

在非常情況下，為保證路面厚度，則采取適當(dāng)調(diào)整高程，以確保路面結(jié)構(gòu)層厚度。

In exceptional circumstances, to ensure the thickness of the road surface, appropriate adjustments to the elevation are taken to ensure the thickness of the pavement structural layer.

（2）攤鋪機(jī)開鋪后會(huì)出現(xiàn)一段距離的雙向坡，這對(duì)路面平整度影響很大。通過反復(fù)驗(yàn)證拱度和熨平板自重下垂和熨平板預(yù)熱溫度和攤鋪溫度的溫差大小有關(guān)。

(2) After the paver starts paving, there will be a two-way slope at a certain distance, which has a significant impact on the smoothness of the road surface. The temperature difference between the arch and the weight sag of the ironing plate, as well as the preheating temperature and paving temperature of the ironing plate, has been repeatedly verified.

所以，我們要求在熨平板預(yù)熱時(shí)溫度不低于80°C，用水準(zhǔn)儀找平，并確定熨平板下支墊板的厚度（支墊板的厚度=松鋪厚度+熨平板預(yù)熱拱度+基層的高層誤差，一般要求有五個(gè)支點(diǎn)）。特別是整幅攤鋪時(shí)，應(yīng)在攤鋪前將拱度調(diào)整為同一坡度，并及時(shí)調(diào)整，特別是攤鋪停止前要檢查、調(diào)整好，以避免二次接縫時(shí)出現(xiàn)路幅偏高中低。

So, we require that the temperature during the preheating of the ironing plate should not be lower than 80 ° C, level it with a spirit level, and determine the thickness of the support plate under the ironing plate (thickness of the support plate=loose laying thickness+preheating curvature of the ironing plate+high-level error of the base layer, generally requiring five support points). Especially during the entire paving process, the arch should be adjusted to the same slope before paving and adjusted in a timely manner. Especially before paving stops, it should be checked and adjusted to avoid the road width being too high or too low during secondary joints.

（3）攤鋪機(jī)螺旋撥料器和攤鋪行走速度不匹配，使攤鋪室中積料過多或過少，導(dǎo)致熨平板下混合料粗細(xì)離折，我們要求螺旋攤鋪室內(nèi)混合料料堆的高度平齊于或略高于螺旋攤鋪器軸心線。特別使螺旋攤鋪器不出空轉(zhuǎn)現(xiàn)象。

(3) The mismatch between the spiral feeder of the paver and the walking speed of the paver results in excessive or insufficient accumulation of material in the paving chamber, leading to the separation of the thickness of the mixture under the ironing plate. We require that the height of the mixture pile in the spiral paver chamber be level with or slightly higher than the axis of the spiral paver. Especially to prevent the spiral paver from idling.

（4）攤鋪機(jī)的行走速度不均勻，使攤鋪速度不勻，瀝青路面表面形成波浪，嚴(yán)重影響平整度及壓實(shí)度。因此，我們要求其應(yīng)保證3ˉ4米/ 分的速度行走，盡量避免停機(jī)。

(4) The uneven walking speed of the paver results in uneven paving speed, causing waves to form on the surface of the asphalt pavement, seriously affecting smoothness and compaction. Therefore, we require it to ensure that 3 ˉ Walk at a speed of 4 meters per minute and try to avoid stopping the machine.

萬一出現(xiàn)停機(jī)，應(yīng)將攤鋪機(jī)熨平板鎖緊不使之下沉。停頓時(shí)間在氣溫10°C以上時(shí)不要超過10分鐘。停頓時(shí)間超過30分鐘或混合料低于100°C時(shí)，要按照冷接縫的方法重新接縫。攤鋪機(jī)前應(yīng)保證至少三車料待鋪，以盡量減少停機(jī)，避免形成波浪。

In case of shutdown, the paver's ironing plate should be locked tightly to prevent it from sinking. The pause time should not exceed 10 minutes when the temperature is above 10 ° C. When the pause time exceeds 30 minutes or the mixture is below 100 ° C, the cold joint method should be used to re joint. Before the paver, it is necessary to ensure that at least three carts of materials are left to be laid, in order to minimize downtime and avoid the formation of waves.

（5）在攤鋪機(jī)行走的穩(wěn)定性上，經(jīng)常出現(xiàn)下列幾種問題：

(5) In terms of the stability of the walking of the paver, the following problems often occur:

a、攤鋪機(jī)履帶行駛線上因卸料而撤落的粒料未及時(shí)清除，造成攤鋪厚度出現(xiàn)突變。因此，在施工過程中，督促施工人員隨時(shí)巡視，以避免這種情況發(fā)生。

a. The granular material that fell off the track of the paver due to unloading was not removed in a timely manner, resulting in a sudden change in the paving thickness. Therefore, during the construction process, it is necessary to supervise the construction personnel to conduct inspections at all times to avoid such situations.

b、運(yùn)輸車倒車時(shí)撞擊攤鋪機(jī)，引起攤鋪機(jī)扭曲前進(jìn)，使路面出現(xiàn)凸愣，我們要求在連續(xù)攤鋪機(jī)過程中，運(yùn)料車應(yīng)在攤鋪機(jī)前10ˉ30cm處停處，并掛空擋，依靠攤鋪機(jī)推動(dòng)緩慢前進(jìn)；

b. When the transport vehicle is reversing, it collides with the paver, causing the paver to twist and move forward, resulting in a bumpy road surface. We require that during the continuous paver process, the transport vehicle should be 10 times in front of the paver ˉ Stop at 30cm and shift to neutral, relying on the paver to push slowly forward;

（6）在中上層的施工中，由于找平梁（拖杠）剛度大，撓度小，落地輪子和雪橇多，自身重量分配合理，行走穩(wěn)定性好，因此，我們要求必須運(yùn)用找平梁，這對(duì)提高路面平整度、厚度起到了很好的效果。

(6) In the construction of the middle and upper layers, due to the high stiffness and small deflection of the leveling beam (drag bar), as well as the large number of wheels and sleds on the ground, reasonable weight distribution, and good walking stability, we require the use of leveling beams, which has a good effect on improving the smoothness and thickness of the road surface.

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