行業(yè)資訊

標(biāo)準(zhǔn)瀝青路面施工需要注意哪些流程？

來(lái)源：http://m.runbangpharm.com/ 日期：2022-03-21

施工機(jī)械：施工前應(yīng)對(duì)拌和廠及瀝青路面施工機(jī)械和設(shè)備的配套情況、性能、計(jì)量精度等進(jìn)行檢查。拌和前特別要注意瀝青拌和樓電子秤的準(zhǔn)確度。從而保證骨料、粉料、瀝青等各種物料配比精度。

Construction machinery: before construction, the matching condition, performance and measurement accuracy of mixing plant and asphalt pavement construction machinery and equipment shall be checked. Before mixing, pay special attention to the accuracy of the electronic scale in the asphalt mixing plant. So as to ensure the proportioning accuracy of aggregate, powder, asphalt and other materials.

長(zhǎng)安濱海灣新區(qū)瀝青路面施工

Asphalt pavement construction in Chang'an Binhai Bay New Area

試驗(yàn)段試鋪

Trial paving of test section

高級(jí)公路面層在施工前應(yīng)鋪筑試驗(yàn)段。試驗(yàn)段的長(zhǎng)度應(yīng)根據(jù)實(shí)驗(yàn)?zāi)康拇_定，宜為100~200M。試驗(yàn)段宜在直線上鋪筑。

The test section shall be paved before the construction of the surface course of high-grade highway. The length of the test section shall be determined according to the purpose of the experiment, preferably 100 ~ 200m. The test section should be paved on a straight line.

在試驗(yàn)段的鋪筑過(guò)程中，應(yīng)認(rèn)真做好記錄分析，直接取得一手施工資料。在正式路段上施工時(shí)，要按照試驗(yàn)段施工時(shí)所取得的試驗(yàn)數(shù)據(jù)進(jìn)行施工。

During the paving process of the test section, careful records and analysis shall be made to directly obtain first-hand construction data. When constructing on the formal road section, the construction shall be carried out according to the test data obtained during the construction of the test section.

施工階段包括：瀝青混凝土混合料的拌和、運(yùn)輸、攤鋪、接縫處理及碾壓。

The construction stage includes: mixing, transportation, paving, joint treatment and rolling of asphalt concrete mixture.

拌和：瀝青混合料必須在瀝青拌和廠采用拌和機(jī)械拌制?？刹捎瞄g歇式拌和機(jī)或連續(xù)式拌和機(jī)拌制。當(dāng)工程材料從多處供料、來(lái)源或質(zhì)量不穩(wěn)定時(shí)，不宜采用連續(xù)式拌和機(jī)。

Mixing: the asphalt mixture must be mixed by mixing machinery in the asphalt mixing plant. Batch mixer or continuous mixer can be used for mixing. When the engineering materials are supplied from multiple sources or the quality is unstable, the continuous mixer should not be used.

運(yùn)輸：混合料的運(yùn)輸采用較大噸位的自卸汽車(chē)運(yùn)輸。從拌和機(jī)向運(yùn)料車(chē)上放料時(shí)，應(yīng)每卸一斗混合料挪動(dòng)一下汽車(chē)位置，以減少粗細(xì)集料的離析現(xiàn)象。運(yùn)輸過(guò)程中注意加蓋蓬布，用以保溫、防雨、防污染。瀝青混合料運(yùn)輸車(chē)的用量應(yīng)較拌和能力或攤鋪速度有所富余，保證攤鋪機(jī)連續(xù)不間斷攤鋪。注意卸料與攤鋪機(jī)之間的距離，防止碰撞攤鋪機(jī)或倒在攤鋪機(jī)外，引起攤鋪不均勻，影響路面的平整度。

Transportation: the mixture is transported by dump truck with large tonnage. When discharging materials from the mixer to the truck, move the truck position for each bucket of mixture to reduce the segregation of coarse and fine aggregates. During transportation, the tarpaulin shall be covered for thermal insulation, rainproof and pollution prevention. The amount of asphalt mixture transport vehicle shall be more than the mixing capacity or paving speed to ensure the continuous paving of the paver. Pay attention to the distance between the unloading and the paver to prevent collision with the paver or falling outside the paver, resulting in uneven paving and affecting the flatness of the road.

攤鋪：在合格的基層上按規(guī)定撒布透層、粘層、鋪筑下封層后，可進(jìn)行混合料的攤鋪。首先進(jìn)行施工放樣。準(zhǔn)確的施工放樣避免基準(zhǔn)鋼線的重度影響，其鋼支柱縱向間距不宜過(guò)大，一般5~10米并用緊線器拉緊。同時(shí)要加強(qiáng)監(jiān)視，防止現(xiàn)場(chǎng)人員擾動(dòng)，造成攤鋪面的波動(dòng)。攤鋪前，還要及時(shí)進(jìn)行立柱、橫坡度、厚度等項(xiàng)指標(biāo)的檢查，發(fā)現(xiàn)問(wèn)題及時(shí)處理。

Paving: the mixture can be paved after the prime coat, tack coat and lower seal coat are spread on the qualified base course according to the regulations. First, carry out construction setting out. The accurate construction setting out shall avoid the severe influence of the reference steel line, and the longitudinal spacing of the steel pillars shall not be too large, generally 5 ~ 10m, and shall be tightened with a wire tightener. At the same time, the monitoring shall be strengthened to prevent the disturbance of on-site personnel from causing the fluctuation of paving surface. Before paving, the column, cross slope, thickness and other indicators shall be checked in time, and the problems found shall be handled in time.

攤鋪機(jī)攤鋪速度勻速行使不間斷，借以減少波浪和施工縫，試驗(yàn)人員隨時(shí)檢測(cè)成品料的配比和瀝青含量，及時(shí)反饋拌和廠，及時(shí)調(diào)整。設(shè)專(zhuān)人消除粗細(xì)集料離析現(xiàn)象，如發(fā)現(xiàn)粗集料窩應(yīng)予鏟除，并用新料填補(bǔ)。此項(xiàng)工作必須在碾壓之前進(jìn)行，嚴(yán)禁用薄層貼補(bǔ)法找平，以免貼補(bǔ)層在使用過(guò)程中脫落壓碎，引起面層推移破裂。

The paving speed of the paver is uniform and uninterrupted, so as to reduce waves and construction joints. The tester shall detect the proportion and asphalt content of the finished material at any time, feed back to the mixing plant in time and adjust it in time. Special personnel shall be assigned to eliminate the segregation of coarse and fine aggregates. If coarse aggregate pits are found, they shall be removed and filled with new materials. This work must be carried out before rolling, and it is strictly prohibited to level with the thin-layer patching method, so as to prevent the patching layer from falling off and crushing during use, resulting in the displacement and fracture of the surface layer.

碾壓：保證路面達(dá)到設(shè)計(jì)的密實(shí)度和良好的平整度，是瀝青路面攤鋪碾壓階段的主要工作目標(biāo)。達(dá)到此目的關(guān)鍵是要使瀝青混合料在適當(dāng)?shù)臏囟认聦?shí)施碾壓。尤其是初壓階段，應(yīng)盡量在規(guī)范要求的溫度范圍內(nèi)的較高溫度下短時(shí)間完成。這就要求在施工組織上拌和機(jī)和攤鋪機(jī)在單位時(shí)間內(nèi)的工作量必須匹配，即拌和量略大于攤鋪量,使混合料鋪筑在緩慢、均勻、連續(xù)不斷的條件下進(jìn)行，并作到邊鋪邊壓。

Rolling: ensuring that the pavement reaches the designed compactness and good flatness is the main work goal of asphalt pavement paving and rolling stage. To achieve this goal, the key is to make the asphalt mixture roll at an appropriate temperature. In particular, the initial pressing stage shall be completed in a short time at a higher temperature within the temperature range required by the specification as far as possible. This requires that in the construction organization, the workload of mixer and paver in unit time must be matched, that is, the mixing volume is slightly greater than the paving volume, so that the mixture paving can be carried out under the condition of slow, uniform and continuous, and the mixture can be paved and pressed at the same time.

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