黄土地区钻孔灌注桩竖向承载力研究

针对目前黄土地区高层建筑广泛使用的旋挖成孔和泥浆护壁（正、反循环）两种施工工艺的钻灌注桩，进行竖向荷载作用下的单桩工作特性分析。结果表明，黄土地区的钻孔灌柱桩有较高的承载潜力良好工作性状，在保证施工质量的前提下，可借助桩身轴力传递和桩端阻力的量测，缩短桩长、节约投资。

Research on Bored Pile''''s Capacity under Vertical Load in Loess Area

Now churn bored pile and slop breast wall pile have been broadly employed to high - rise building in loess area.Due to the different constructing technics,the article analyzes the single pile's behavior under vertical load. The results indicate that the bored pile works well and has high potential carrying capacity. Under the precondition of construction quality,we can shorten pile's length and reduce investment through the measurement of pile's axial force and pile's end resistance.