【摘要】 以嵌岩桩为例 ,给出孔壁粗糙度的描述方法及其与桩侧阻力之间的关系。通过分析试验结果 ,研究了孔壁粗糙度对钻孔灌注桩抗压和抗拔侧阻力的影响。表明孔壁粗糙度越大 ,相应的桩侧阻力就越大 ,施工时可通过一定的技术方法增加孔壁的粗糙度 ,从而提高钻孔灌注桩的承载力更多还原

【Abstract】 The description method of hole side roughness and its effect on the pile side resistance of rock\|socked pile are presented. Through the analysis of pile testing results the effects of hole side roughness on the pile side resistance under pressuring load or pulling load for cast\|in\|site piles are studied. It is shown that the increase of the hole side rounghness would raise the bearing capacity of the piles. The principle can be used in pile construction for increasing the bearing capacity.更多还原