摘要
依据某工程3根钻孔灌注桩的单桩竖向抗压静载试验,通过对其静载试验Q～s曲线的特性、桩身轴力传递机理、桩侧阻力发挥性状和桩端阻力发挥性状的分析,探讨了钻成孔方法、泥浆循环等施工因素对钻孔灌注桩工程性状的影响,揭示了泥岩地基中钻孔灌注桩的承载力特性和破坏机理模式.
By means of the static load tests of three bored piles with the same diameter in a building,the Q～S curves, axial-fore tranfer mechanism, the developing process of side frictional resistence and end bearing are analyzed in the paper. It is indicated that the bearing capacity of pile will be different because of the construction cause such as drilling method and slurry circulation style. It provides the laod bearing behavior and failure mechanism of bored pile in mudstone.
出处
《河南科学》
2005年第3期411-414,共4页
Henan Science
关键词
钻孔灌注桩
静载荷试验
工程性状
施工因素
bored pile
static load test
load bearing behavior
construction cause
