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通过大型公路桥梁桩基施工、检测及事故处理的一些工程实例 ,利用大直径灌注桩荷载传递机理 ,阐述了桥梁基础采用大直径冲钻孔灌注桩施工时应着重控制的几个问题和采用低应变动测检测桩身完整性的原理和典型事例 ,并介绍压力注浆法处理桩基质量事故的原理及具体施工方法。
Through some engineering examples of construction, detection and accident treatment of large highway bridge pile foundation, taking advantage of the load transfer mechanism of large-diameter cast-in-place pile, several problems that should be emphatically controlled when using large diameter perforation cast-in-place pile foundation are expounded and adopted low Strain dynamic testing pile integrity of the principle and typical examples, and introduces the principle of pressure grouting pile foundation quality accidents and specific construction methods.