嵌岩桩设计若干问题探讨  

DISCUSSION ON SEVERAL PROBLEMS OF ROCK-SOCKETED PILE DESIGN

作　　者：赵杰林[1] 

机构地区：[1]重庆华森建筑设计顾问有限公司,重庆401120

出　　处：《建筑技术》2016年第6期509-513,共5页Architecture Technology

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.

关 键 词：嵌岩桩 承载机理 单轴抗压强度 长径比 嵌岩深度 

分 类 号：TU473.12[建筑科学—结构工程]