特高压塔基人工挖孔桩基础受水平荷载时围岩应力分布研究

Research on Surrounding Rock Stress Distribution Beared Horizontal Load of the Manual Hole Digging Cast-in-situ Pile Foundation for the Ultra-high Voltage Tower

近年来,特高压输电线路工程建设逐渐增多,所经地区地质条件也越来越复杂。本文以溪浙±800k V线路工程施工图勘察设计为工程背景,研究在水平荷载作用下人工挖孔灌注桩基础围岩应力和变形的分布和消散规律,从而判断塔基位于某一具体地质陡坡的稳定性。

In recent years,the ultra-high voltage transmission line projects have been developed gradually,and the geological conditions of the regions which the UHV transmission lines pass through also become more and more complicated.The theme of the thesis is to research the profile and dissipation rules of surrounding rock stress and deformation nearby the manual hole digging cast-in-situ pile foundation which is under the action of the horizontal load on the background of The XIZHE±800kV UHV transmission line project construction survey and design,and then to evaluate the stability of a geological steep slope which a tower is placed on.The research results can provide a reference for how to select locations of tower foundations.