Use level survey to mark the paving design elevation of the cement stabilized macadam with obvious mark on indication piles both sides 利用水准测量，在两侧指示桩上用明显标记标出，水泥稳定碎石的铺筑设计标高。
In addition , relevant advices are proposed , which will provide some theoretical value and direction to the study and application of the lime - fly - ash bound macadam 相信本论文的结论与建议对今后进一步开展二灰碎石的研究和应用具有一定的理论价值及指导作用。
At present , there are measures to reduce the shrinkage of the lime - fly - ash bound macadam and to increase the split strength . however , seldom of them are effective 减小二灰碎石的收缩及提高其抗弯拉强度的方法很多，但从目前的情况来看，非常有效的方法并不多。
This text introduces some way to improve the early strength of lime - flyashed stabilized macadam from aspects of raw material , grading of aggregates , early strength agent , and construction , and presents comprehensive and systematic analysis to it 摘要从所用原材料、集料级配、早强剂以及施工养生等方面介绍了提高二灰稳定碎石基层早期强度的措施，并对其进行了系统的分析。
Mixture transportation : cement stabilized macadam should be transported by dump truck , and the quantity of dump truck should be reasonably prepared according to the paving capacity of the pavers , production capacity of the mixers , and the distance of transportation 混合料运输，水泥稳定碎石的运输均采用自卸车运输，运输车的数量根据摊铺机摊铺能力，拌和机生产能力及运距进行合理地调配。
Among them , working procedure optimization of construction of passing water gap in flood season in the same construction can be spread ; utilization of experience that lime dusts are mixed with macadam to satisfy winner construction , difficult problem of short construction stage in the cold area can be solved , this experience has the popular adaptability 其中度汛期过水缺口部位施工工序的优化在同类工程中具有推广价值；利用碎石掺加石粉料满足冬季施工的经验解决了寒冷地区施工期短的难题，该经验具有普遍的适应性。
Through the experimental research , we think : the technological capacity of fiberglass asphalt macadam if weaker than asphalt macadam , however , if use elasticized capacity to solve blending technological problem . adjust the breed of fiber silk , extend its diameter , its paving capacity is still worth exploring , asphalt - rubber macadam structure lager have good deformed - become capacity and crazed - resistance capacity , small gap rate . good water - resistance capacity , good hot - stability and simple construction technology . therefore . pitch rubber spall is a good cover material which is suitable for the second class or lower whose asphalt pavement has split open because of fatigue . and is the good structural measure of preventing half - rigidity grass - roots unit shrink - rift reflecting . pave a thin layer of pitch rubber spall between asphalt - type pavement layer and half - rigidity basic level , although the cost of building is higher than paving togongbu in the middle , the construction technology , crazing - resistance and water - resistance are better than togongbu , not only could reduce greatly the reflex of half - rigidity grass - roots unit material , long then the use lifespan of pavement , but also it is possible to reduce suitably the thickness of asphalt mixture layer , though the cast of building in the early days becomes more , in the long - term opinion , it have fully important technological and economical significance 通过试验研究认为：玻璃纤维沥青碎石的技术性能不如沥青碎石好，但路用弹性性能较好，如能解决拌和工艺问题，调整纤维丝的品种，增大其直径，其路用性能仍值得探讨，沥青橡胶碎石结构层具有变形性能和抗裂性能良好，空隙率小，防水性能好，热稳定性较好，施工工艺简单的特点，因此，沥青橡胶碎石是二级及二级以下公路因疲劳而开裂的沥青路面的良好罩面材料，也是防止半刚性基层收缩裂缝反射的良好结构措施，在沥青类路面面层和半刚性基层之间夹铺沥青橡胶碎石薄层，虽然造价比夹铺土工布高，但其施工工艺，抗裂性能和防水性能均优于土工布，不仅可以大大减少半刚性基层材料的反射裂缝，延长路面使用寿命，而且可能适当减薄沥青混合料面层的厚度，虽然初期造价有所增加，从长远来看，具有十分重要的技术和经济意义。
The present paper , based on practice of dynamic compaction to eliminate sandy soil liquefaction on shi - an expressway , is presenting a penetrated analysis of working properties and mechanism of consolidation of dynamic compaction . some construction co - efficient have also been presented for reference in highway construction . meanwhile , in combination with the flat board static load tests , a simple and easy - to - look analysis model has been proposed for composite ground of macadam ( fly - ash ) the present paper concludes that dynamic compaction for treatment of sandy soil liquefaction is an effective approach 本文结合石安高速公路建设中采用强夯法处治砂土液化地基的工程实践，对强夯法的工作性状和加固机理做了剖析，对强夯施工参数提出了在公路领域中的选用特点和方法，同时，结合野外的平板静载试验，提出一个简单直观的碎石(粉煤灰)桩复合地基分析模型。
The bituminous pavement with semi - rigidity base made of lime - fly - ash bound macadam has been widely used in highway construction in china . but , cracks often occur in the lime - fly - ash bound macadam base due to the dry - shrinkage and the temperature - shrinkage . as a result , the applicable properties of the semi - rigidity bituminous pavement may be weakened 二灰碎石半刚性基层沥青路面在我国公路建设中得到了广泛的应用，但是二灰碎石半刚性材料由于干缩、温缩容易产生裂缝，从而导致半刚性基层沥青路面使用性能降低。
In this research , the lime - fly - ash bound macadam was joined with steel fibers , glass fibers and polypropylene fibers with the contents of the lime , the fly ash and the macadam fixed in lab tests . the study focuses mainly on the split strength , compression strength , and modulus of compressive resilience and shrinkage property of the lime - fly - ash bound macadam enhanced by different kinds of fibers . based on the test , a detail theoretical analysis was made on the relation of mechanical property , dry shr inkage with the variety and the quantity of fibers , applying the theories of strength , dry shrinkage and the methods of statistics , curve mimesis and variance analysis 本论文主要是研究在同一种二灰碎石混合料(石灰、粉煤灰、集料的含量及比例相同)中分别掺入不同数量的钢纤维、玻璃纤维、聚丙烯纤维，通过室内试验对其抗拉强度、抗压强度、抗压回弹模量和干燥收缩性能与纤维掺量和纤维品种之间的关系加以分析和研究，并在此基础上根据二灰碎石强度形成机理、干燥收缩机理和数理统计、曲线拟合、方差分析的方法分析纤维品种和纤维数量对二灰碎石的力学性能和干燥收缩性能的影响，最后得出纤维对二灰碎石的强度、抗压回弹模量、干燥收缩有很显著的影响，并提出了相应的建议。
