较大水平推力下的承台灌注桩结构设计探讨

Discussion on structure design of bearing platform bored pile under the larger level thrust

本文通过某输水管线工程实例,阐述了为满足输水管路局部拐点位置的整体稳定,在承受较大水平推力的弯头管件处布设承台灌注桩结构的设计理念及具体方法。文中分别进行了单桩水平承载力、单桩位移分析及承台-群桩-土协同作用下的整体稳定计算;对比单桩水平承载力检测报告及承台灌注桩相关参数分析,为输水管线构筑物的设计及稳定分析提供了相关经验。

Based on the project example of some a water conveyance pipeline,in order to meet the overall stability of the local inflection point position of water conveyance pipeline,the paper elaborates on the design concepts and specific methods of the bearing platform bored pile structure at the elbow fittings under the larger level thrust.In this paper,the overall stable calculation are carried respectively with the horizontal bearing capacity of single pile,the displacement analysis of single pile and the synergistic action of bearing platform-pile groups-soil.These works,the comparison of test reports of the horizontal bearing capacity of single pile and the relevant parameters analysis of bearing platform bored pile,would provide relevant experience for the design and stability analysis of water pipeline structures.