复合地层界面倾角对边坡支护变形的影响研究  

作　　者：高德杰 姚国胜 车发选 

机构地区：[1]山东高速工程建设集团有限公司,济南250014

出　　处：《科技创新与应用》2025年第5期104-107,共4页Technology Innovation and Application

摘　　要：为研究土岩复合地层界面倾角对边坡灌注桩支护变形及地表变形的规律,依托临沧市临翔区粮食仓储物流园区项目,采用Midas软件进行数值模拟计算,分析土岩复合地层交接面不同倾斜角度对地表沉降及支护桩侧向位移的影响,得出以下结论,当地层交界面倾斜时,支护桩侧向位移最大处在其中上部,并沿桩身向两侧降低,整体呈现S型变化;随着交接面倾斜角度的增大,最大地表沉降量也随之增大,最大沉降位置向基坑侧移动;支护桩侧向位移随着土层交接面倾斜角度的增大而增大,且支护桩最大侧向位移位置出现下移趋势,同时随着角度增加,支护桩侧向位移增大趋势降低。In order to study the laws of the interface inclination angle of soil-rock composite strata on the support deformation of slope cast-in-place piles and surface deformation,relying on the Grain Storage and Logistics Park Project in Linxiang District of Lincang City,Midas software was used to conduct numerical simulation calculations,and the effects of different inclination angles of the interface between soil-rock composite strata on surface settlement and lateral displacement of support piles were analyzed,and the following conclusions were drawn:When the local layer interface inclines,the maximum lateral displacement of the supporting pile is in the upper middle part,and decreases to both sides along the pile body,showing an overall S-shaped change;as the inclination angle of the interface increases,the maximum surface settlement also increases,and the maximum settlement position moves towards the foundation pit side;the lateral displacement of the supporting pile increases with the increase of the inclination angle of the soil interface,and the maximum lateral displacement position of the supporting pile tends to move downward.At the same time,the increasing trend of the lateral displacement of the supporting pile decreases with the increase of the angle.

关 键 词：土岩复合地层 倾斜 滑移 数值模拟 支护桩 地表沉降 

分 类 号：TU473[建筑科学—结构工程]