基于超长嵌岩桩自平衡试验的风化岩层侧阻力值研究  

Shaft resistance of weathered rock based on super-long rock-socketed piles self-balanced load test

作　　者：冯光华 林治平 FENG Guang-hua;LIN Zhi-ping(The First Engineering Company of CCCC Fourth Harbor Engineering Co., Ltd., Guangzhou 510310, China)

机构地区：[1]中交四航局第一工程有限公司,广东广州510310

出　　处：《水运工程》2017年第9期197-201,共5页Port & Waterway Engineering

摘　　要：通过东非某工程海上超长嵌岩灌注桩自平衡试验,探讨不同风化岩层的竖向抗拔侧阻力分布规律,得出如下结论:1)强风化砂岩侧阻力与位移拟合线性关系为:y=1.534 2x+180.48;2)中风化泥岩侧阻力与位移拟合线性关系为:y=0.954 5x+353.5;3)相对于中风化岩层,桩土相对位移对于强风化岩层阻力值更为敏感。The distributing law of shaft friction about weathered rock is discussed based on super-long rock-socketed piles self-balanced load test in a hydraulic dock in east Africa and the conclusions are as follows:Firstly,the uplift shaft resistance of highly weathered rock y=1.5342x+180.48;Secondly,the uplift shaft resistance of moderate weathered rock y=0.9545x+353.5;Furthermore,compared with the moderate weathered rock,the shaft resistance about highly weathered rock is more sensitive about the relative displacement between piles and soils.

关 键 词：自平衡试验 超长嵌岩桩 风化岩层 侧阻力值 

分 类 号：U655.55[交通运输工程—港口、海岸及近海工程]