摘要
随着高层建筑的出现,桩基的应用越来越广泛,因此桩基静载试验成为保证桩基工程质量的重要环节。针对锚桩静载试验法,运用有限元方法并结合具体工程实例,分析了不同锚桩方案对试验结果的影响。结果表明,利用工程桩作为单桩竖向承载力试验的锚桩对试验结果是有影响的;随着锚桩与承压桩距离的增大,锚桩的影响将会减小,工程中应保证a(锚桩距承压桩距离)足够大。当荷载不断增大,土体进入塑性状态后,土层承压能力减弱,锚桩的影响将很小,可以忽略。
With the appearance of tall building, the appliance of pile foundation is more extensive. Thus the experimentation of pile foundation static load becomes the important key to ensurance of the quality of pile foundation project. This article has analyzed the impact on experimental result of different anchor pile schemes by using the finite element method and combining the concrete project instance to contrapose the anchor pile static load experiment method. The result manifests that it is influential to the experimental result as the single pile upright bearing capacity of experimental anchor pile to utilize engineering pile. As the distance between the anchor pile will be reduced. A (the distance in anchor pile and bearing pressure pile) should be big enough in engineering. When the load is becoming larger, the soil bearing press capacity will weaken after the soil enters the plastic state, thus the effect of the anchor pile will be little, so it can be neglected.
出处
《陕西工学院学报》
2005年第2期56-58,共3页
Journal of Shaanxi Institute of Technology
关键词
锚桩
承载力
有限元法
加筋效应
anchor pile
bearing pressure pile
finite element method
reinforcing effect
