山区军用机场跑道工后沉降分析与计算  

Analysis and Calculation on the Post-construction Settlement of Military Airport Runway in Mountainous Areas

作　　者：赵帅军[1,2] 陆新[1,2] 孙发鑫[3] 王诚[1] 

机构地区：[1]后勤工程学院土木工程系,重庆401311 [2]后勤工程学院岩土力学与地质环境保护重庆市重点实验室,重庆401311 [3]重庆江北国际机场扩建指挥部,重庆401120

出　　处：《四川兵工学报》2014年第12期138-142,共5页Journal of Sichuan Ordnance

摘　　要：首先使用FLC3D有限差分软件研究土层弹性模量、重度、填土高度对跑道道面中心点沉降的影响。数值计算结果表明:土层弹性模量增加,沉降变形减小,但不明显;填土重度和填土高度增加,沉降变形都增加较大。然后以某机场工程为背景选取跑道典型断面计算其在不采取任何地基处理情况下的工后沉降。填方工后沉降由原地基沉降和填筑体沉降两部分组成。原地基变形根据太沙基一维固结理论计算,上部填方沉降由工程经验公式得出。参考沉降计算结果,为工程后期采取合适的地基处理方案提出建议。Firstly,the influence of modulus of elasticity of soil layer,unit weight and the height of fill to the settlement of the center point of the runway surface is researched by using the finite difference software of FLC^3D. According to the result： with the modulus of elasticity of soil layer increased,the settlement and deformation were decreased,but not obvious; with the unit weight and the height of fill increased,the settlement and deformation were increased obviously. The typical cross-section is selected to calculate the settlement of the high fill embankment which is without ground treatment on the background of a certain airport project. The post – construction settlement of high fill consist of settlement of the original foundation and settlement of high fill. The settlement of the original foundation is calculated accurately based on onedimensional Terzaghi consolidation theory and the settlement of upper fill is calculated by engineering empirical formula. The latter part of appropriate ground treatment program selection can be proposed refer to the results.

关 键 词：高填方 跑道 工后沉降 FLC^3D 

分 类 号：TU44[建筑科学—岩土工程]