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单桩承载力的确定是桩基设计中的首要问题,对大直径开口钢管桩单桩承载力的预估,桩周侧摩阻力标准值qsk的取值至关重要。通过对44根开口钢管桩进行多次锤击沉桩和高应变动载测试的实测数据,按照参数法计算出开口钢管桩在强风化岩中的极限侧摩阻力标准值,为今后类似地基中基桩承载力计算提供参考。
The determination of bearing capacity of single pile is the most important issue in the design of pile foundation. It is very important to estimate the bearing capacity of single pile with large diameter open pipe pile and the standard value of frictional resistance qsk around the pile. Based on the measured data of 44 open-ended steel pipe piles subjected to several times of hammer piling and high-strain dynamic load test, the standard value of ultimate lateral frictional resistance of open steel pipe piles in strongly weathered rocks is calculated according to the parameter method, Foundation for calculating the bearing capacity of piles provide a reference.