考虑桩土相互作用的高墩大跨黄河引水渡槽稳定性计算方法研究  

Study on the Stability Computational Methods of the High Pier Large Span Yellow River Diversion Aqueduct Considering Pile-Soil Interaction

作　　者：赵菲 张基强 王栋 赵林 ZHAO Fei;ZHANG Ji-qiang;WANG Dong;ZHAO Lin(College of Architecture Engineering,Qingdao Huanghai University,Qingdao 266427,Shandong Province,China;College of Architecture and Civil Engineering,Shandong University of Science and Technology,Qingdao 266590,Shandong Province,China;Lixia Holding,Jinan 250014,Shandong Province,China;China Railway Construction Group Co.,Ltd.,Beijing 100040,China)

机构地区：[1]青岛黄海学院建筑工程学院,山东青岛266427 [2]山东科技大学土木工程与建筑学院,山东青岛266000 [3]济南历下控股集团有限公司,山东济南250014 [4]中铁建设集团有限公司,北京100040

出　　处：《中国农村水利水电》2025年第4期65-70,83,共7页China Rural Water and Hydropower

基　　金：山东省自然科学基金项目(ZR202102180883)。

摘　　要：山西忻州地区山高谷深、沟壑纵横,黄河引水渡槽为适应地形条件在桥头段采用高墩大跨形式,其稳定问题备受关注。目前大部分学者对渡槽进行稳定性分析时采用墩底固结边界条件,片面夸大了土体对桩体的约束作用。针对上述问题本文依托桥头渡槽工程,通过三弹簧边界条件模拟桩土间相互作用,推导了最大悬臂状态及成槽状态的高墩稳定临界荷载计算公式。最后通过数值模拟对计算公式进行校核,验证了公式的正确性,为黄河引水渡槽的灾变防控提供了理论依据。In Xinzhou Shanxi region,with high mountains and deep valleys,gullies and ravines,the Yellow River diversion aqueduct adopts the form of high pier and large span to adapt to the terrain conditions,and its stability issues cannot be disregarded.Currently,most scholars conducting stability analysis of aqueducts adopt the consolidated boundary conditions at the base of piers,which exaggerates the soil's constraining effect on piles.To address this issue,this paper relies on the bridge-head aqueduct project and simulates the interaction between piles and soil using a three-spring boundary condition.It derives calculation formulas for the critical load of stability in both maximum cantilever state and trench formation state.Finally,numerical simulations are conducted to verify the correctness of the calculation formulas,providing a theoretical basis for disaster prevention and control of the Yellow River water diversion aqueduct.

关 键 词：渡槽 稳定性 最大悬臂状态 边界条件 桩土相互作用 

分 类 号：U45[建筑科学—桥梁与隧道工程]