【正文】 lled with the old part of the slope of the roadbed or conjunctive phrase, in the slopes of the old roadbed slope or fill slope from digging up the steps into inward tilt , step width of not less than . Fill Subgrade paction degrees should be increased 1 to 3 percentage points. Construction of concrete pavement paver machinery Using cement concrete paver road construction is to improve the homogeneity of the concrete slab, Micronesia, and to ensure the quality of one of the best. Sliding mode on the paver, the concrete is vibrated by the vibration program vibration bar, and then vibrated by the vibrating beam. Vibrator in the equidistant uniform width paver layout, and its amplitude, frequency and power are adjustable to overe the shortings of artificial uneven paving. Therefore, the concrete slab paving uniform, dense, no weak points, or weak side. Strong construction management to ensure that concrete quality Strengthen the construction management is to ensure that the quality of the concrete one of the important ways. First of all, the quality control of raw materials. A variety of technical indicators of the raw materials must meet the design and the relevant regulatory requirements. Materials do not fail. Followed by the construction of concrete mixing mix control, a variety of materials measurement must be accurate. Finally, there is fresh concrete to control the machine from one mode to the period of not more than the initial setting time of cement。槽底要清洗干凈，在槽底鋪設(shè)用A10mm鋼筋綁扎的10*10cm的鋼筋網(wǎng)，然后澆筑與原路面混凝土強(qiáng)度相等的小石子混凝土，保濕養(yǎng)生28天后開放交通。4裂縫的處理水泥混凝土路面縱向裂縫的處理可采用局部處理和全部處理的辦法。振動(dòng)棒是在攤鋪寬度內(nèi)等距離均勻布置，其振幅、頻率和功率都是可調(diào)的，克服了人工攤鋪不均勻的缺點(diǎn)。(1)填方路堤在填方路堤施工時(shí)，必須按規(guī)范和設(shè)計(jì)要求分層填筑，分層碾壓，壓實(shí)度必須達(dá)到設(shè)計(jì)要求。用振搗棒插點(diǎn)式振搗和平板振搗器振搗，振搗的點(diǎn)位和振搗時(shí)間完全由人來控制，在施工的外界環(huán)境和操作手人為等因素的影響下，很難做到布點(diǎn)均勻，振搗時(shí)間適度。水泥混凝土路面板強(qiáng)度低主要有兩個(gè)方面的原因，一是混凝土強(qiáng)度達(dá)不到設(shè)計(jì)值；二是由于施工攤鋪的原因而使混凝土板強(qiáng)度達(dá)不到設(shè)計(jì)值。(2)半填半挖及舊路改建路基半填半挖及舊路改建的路在新建的路在新填的一側(cè)與挖方七舊路基一側(cè)的接茬處，如果處理不好，往往在此處出現(xiàn)縱向裂縫。2產(chǎn)生縱向裂縫的原因水泥混凝土路面在運(yùn)營過程中發(fā)生縱向開裂的原因是多方面的但是其主要原因是強(qiáng)度問題。有表面網(wǎng)裂、橫向開裂、縱向開裂等?；A(chǔ)強(qiáng)度不足，在荷載作用下，必然發(fā)生縱向開裂，如果路床發(fā)生縱向開裂，就會(huì)反射到路面上來。在過去和現(xiàn)行的有關(guān)規(guī)范和標(biāo)準(zhǔn)中，挖方和零填路段基礎(chǔ)的處理只對(duì)上路床（路槽頂面以下0~30cm）做了要求，而對(duì)下路床（路槽頂面以下30~80cm）不做要求，天然狀態(tài)即可。如水泥掉號(hào)，集料強(qiáng)度低或者不均勻，級(jí)配不合格，雜質(zhì)含量超限等。在行車荷載的反復(fù)作用下，混凝土板在不密實(shí)處首先產(chǎn)生裂縫。對(duì)于特重交通的公路，下處理的深度還應(yīng)該加深。首先控制原材料的質(zhì)量。 如果基層有破壞進(jìn)行適當(dāng)處理，然后重新澆筑與原路面等強(qiáng)度的混凝土板。 the width of cracks is also with the passage of time and continuous development, from the beginning against a few millimeters, can be developed to a few millimeters, a few centimeters, the most wide cracks up to more than 5cm. Vertical cracks in cement concrete pavement is a more serious disease. Cracks in the wheel under load, over time an everwidening crack width, while gradually off the edge cracks broken until pit ther