机构地区: 长安大学公路学院
出 处: 《土木工程学报》 2004年第8期66-71,共6页
摘 要: 本文依托大保高速公路 5根大直径试验桩的破坏性静载荷试验 ,分析了该区域地质条件下 ,灌注桩基承载性能受施工工艺、桩侧注浆、桩侧注水等诸多因素的影响程度 ,建议滇西山区沟谷地段桩基竖向承载力设计使用采用分项安全系数的推荐公式 。 Based on loading tests to 5 piles in the DaBao expressway,this paper analyzes several influencing factors of the cast-in-place piles in the area,such as construction techniques,growting or injecting water around the piles.It is recommanded to employ the formula with sub-entry safety factors for the design of the vertical bearing capacity of the pile foundation in the western coteau area of yunnan province,and the ranges of values of the involred pasameters are provided.