山区斜坡地段桩板墙有效嵌固段分析与应用  

Analysis and application of effective embedded sections of pile sheet walls in mountainous slope areas

作　　者：吴泽 Wu Ze(PowerChina Guiyang Engineering Corporation Limited,Guiyang Guizhou 550000,China)

机构地区：[1]中国电建集团贵阳勘测设计研究院有限公司,贵州贵阳550000

出　　处：《山西建筑》2025年第3期78-81,共4页Shanxi Architecture

基　　金：中国电力建设股份有限公司科技项目(项目编号:XNZ/2020/KK-1-2)。

摘　　要：桩板墙常用于空间有限的填方边坡工程中,支护桩的锚固段是按半无限体考虑,但斜坡上桩前的三角体难以形成半无限体的锚固条件,为明确山区斜坡地段桩板墙有效嵌固段,此次研究模拟分析主要采用Madis GTS NX有限元软件进行,通过改变桩前土的坡度,得到桩板墙桩顶水平位移及桩身内力变化趋势:当桩板墙其他条件相同时,桩顶水平位移及桩身内弯矩均随着桩前土体坡度增大同步增加,总结出不同坡度时桩板墙有效嵌固段起算位置,经某实际项目监测成果验证,得出计算数值与监测数值较为相符,验证了计算方法的合理性,可为今后山区斜坡地段桩板墙设计项目提供有益参考。The pile slab wall is commonly utilized in slope flling projects with limited space,where the anchoring section of supporting piles is considered as a semi-infinite body.However,forming the anchoring condition of a semi-infinite body for the triangular body in front of piles on slopes proves to be challenging.In order to determine the effective anchoring section of a pile slab wall in mountainous slope areas,this study primarily employs Madis GTS NX finite element software for simulation and analysis.By altering the soil slope in front of piles,we obtain the variation trend of horizontal displace-ment at the top of piles and internal forces within pile bodies:Under identical conditions for other aspects of the pile slab wall,both horizontal displacement at the top of piles and internal bending moment within pile bodies increase simultane-ously with an increase in soil slope ahead of each respective pile.We summarize different starting positions for effective embedded sections based on various slopes.Through monitoring results from a practical project,calculated values align with monitored values,thereby validating the rationality behind our calculation method.This can provide valuable refer-ence for future design projects involving pile slab walls in mountain slope areas.

关 键 词：山区 桩板墙 边坡支护 有限元 斜坡 嵌固段 

分 类 号：TU753.8[建筑科学—建筑技术科学]