南方多雨地区路基择时施工方法的研究

发布时间：2018-04-29 07:37

本文选题：道路工程 + 择时施工　；参考：《公路交通科技》2014年03期

【摘要】：为了科学、合理地提高南方湿热多雨地区公路雨季施工建设效率,针对南方湿热多雨地区因长期持续降雨严重延缓公路路基施工进度,确定了路基施工受降雨气候影响最关键工序-填料翻晒。按照填料翻晒所需气候条件,结合降雨规律提出了路基择时施工方法新理念。运用回归分析建立了路基择时施工时段与对应频率之间的相关关系,从而推导了路基择时施工时段的分布规律和概率计算公式,并运用假设检验方法验证了合理性及适用性。通过现场翻晒试验,计算和对比分析多雨地区5种典型路基填料可施工时段相应频数及可行概率,从择时施工可行概率的角度提出了适用于多雨地区路基填料分级新方法。结合工程实例,运用路基择时施工分布规律对路基填筑整个施工组织过程进行了优化,论证其可靠性及实现性。
[Abstract]:In order to scientifically and reasonably improve the construction efficiency of highway construction in wet and hot rainy season in southern China, the construction progress of highway roadbed is seriously delayed because of long-term continuous rainfall in the wet and hot rainy area of southern China. The most important process of roadbed construction affected by rainfall and climate was determined. According to the climatic conditions needed by packing, combined with rainfall law, a new concept of subgrade timing construction method is put forward. The correlation relationship between subgrade timing construction period and corresponding frequency is established by means of regression analysis, and the distribution law and probability calculation formula of roadbed timing construction period are deduced, and the rationality and applicability are verified by using hypothesis test method. Based on field sunburn test, the corresponding frequency and feasible probability of five typical subgrade fillers in rainy areas are calculated and compared. A new method for classification of roadbed fillers in rainy areas is put forward from the point of view of feasible probability of construction in timing. Combined with engineering examples, this paper optimizes the whole construction organization process of subgrade filling by using the distribution law of subgrade timing construction, and proves its reliability and realization.
【作者单位】：长沙理工大学交通运输工程学院;长沙理工大学道路结构与材料交通行业重点实验室;
【基金】：国家自然科学基金项目(51108049;51078045) 国家重点基础研究发展计划项目(2011CB411910) 交通运输部科技项目(2011318824730) 长沙理工大学道路结构与材料交通行业重点实验室开放基金项目(kfj110201) 海南省交通科技项目(2013HNJZJ-01) 湖南省研究生科研创新项目(CX2013B365)
【分类号】：U416.1

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