中国岩溶
中國巖溶
중국암용
CARSOLOGICA SINICA
2005年
2期
140-146
,共7页
梅世龙%E.C.Drumm%黄宝山%何文斌%左刚
梅世龍%E.C.Drumm%黃寶山%何文斌%左剛
매세룡%E.C.Drumm%황보산%하문빈%좌강
岩溶%挖孔桩%表面摩擦
巖溶%挖孔樁%錶麵摩抆
암용%알공장%표면마찰
Karst%Drilled shafts%Skin friction
A 2.5 meter diameter 49 m long concrete shaft foundation socketed into rock was load tested with a system of balanced internal jacks similar to the O-cell test. This internal loading provided an examination of the skin friction response both above and below the load jack. Based on the observed response, the properties for the interface between the concrete and rock-socket were back-calculated. Since the observed side resistance at the interface was greater than the resistance due solely to friction, an apparent interface cohesion term was included by idealizing small asperities along the rock socket. The use of idealized asperities appears to be an effective way to model cohesion at the rock-concrete contact.
