The Design of Side Resistance Rock Sockets in Sedimentary Rock

摘要

The lack of a soundly based design method for bored piles and piers socketed into rock prompted the research. This research work has concentrated on developing design criteria based on a large number of field tests in Melbourne mudstone and Sydney sandstone. Both end bearing and side shear tests have been undertaken on sockets up to 1500 mm in diameter. This paper only considers the results of the side shear tests and uses them to establish a design procedure for rock sockets where all the load is considered to be taken in side resistance. Attention is drawn to the significant differences between sockets in mudstone and sandstone and data are presented regarding the effects of socket roughness and casting the socket concrete under bentonite.