黄土地区公路地基承载力评价方法及分区研究

【作者】 石刚；

【导师】 支喜兰；

【作者基本信息】 长安大学 ， 道路与铁道工程， 2004， 硕士

【摘要】 地基承载力是影响公路路基路面结构稳定的重要因素，合理评价黄土地基承载力是目前公路建设中急需要解决的问题之一。本文针对公路工程的特点，通过对黄土地区地基实测载荷板资料的分析，确定了黄土地区公路地基承载力特征值的取值方法；分别从定量、定性和微观角度，分析了黄土地基承载力的影响因素以及承载力的变化规律，对黄土地区进行承载力分区；并提出应用不同物理力学指标确定地基承载力的回归公式以及应用模糊数学综合评价地基承载力的方法。最后本文结合工程实例，提出确定黄土地基承载力的实用方法。本文的研究成果对公路工程地基承载力的评价具有一定的指导意义，对公路路基设计具有参考价值。更多还原

【Abstract】 Ground bearing capacity is one of the important factors that influence the structural stability of road base. Reasonably to determine the ground bearing capacity in loess area is a vital problem to be solved in road construction. This paper exploits the determining way for the values of ground bearing capacity through analyzing the data of actual examination on load. From the aspects of quantity, nature and macro-angle, we analyze the influencing factors and regulations of change in the ground bearing capacity and divide the areas of different loess. This paper proposes regressing formulas for correspondent physical force indexes and synthetic evaluation of fuzzy mathematics to determine the ground bearing capacity. At last, according to the actual examples, this paper projects the practical methods to determine the ground bearing capacity in loess area. The results of this paper has great significance in determining the ground bearing capacity of road base and has reference value for the design of the road base.更多还原