摘要
嵌岩桩作为一种特殊类型的桩,由于高承载力、小沉降、抗震性好等特点而得到了广泛应用,但其设计理论、设计细则规定等还不完善。通过对嵌岩桩设计的几个问题进行讨论,提出嵌岩桩承载机理需根据桩周边岩石的不同岩性进一步研究;岩石单轴抗压强度的取值严重偏离实际情况;嵌岩桩设计宜有长径比要求;小直径桩的构造规定不完全适用于大直径嵌岩桩。
The rock-socketed pile as a special pile style has the feature of high bearing capability, small settlement and good seismic performance, so it as the base of civil engineering has been widely utilized. Design theory and rules of rock-socketed pile are not perfect. In this paper, some issues about the rock-socketed pile are discussed. The bearing mechanism of rock-socketed pile need to be further research according to the different rock properties located around the pile. The value of the uniaxial compressive strength of rock is seriously deviated from the actual situation. The design of rock-socketed pile should have requirement of the length to diameter ratio. The details of small diameter pile are not fully applicable to large diameter rock-socketed pile.
出处
《建筑技术》
北大核心
2016年第6期509-513,共5页
Architecture Technology
关键词
嵌岩桩
承载机理
单轴抗压强度
长径比
嵌岩深度
rock-socketed pile
bearing mechanism
uniaxial compressive strength
aspect ratio
rocksocketed length
