路桥过渡段沉降的分析及处理
Settlement Analysis and Treatment of Road and Bridge Transition Section
郝灵恩 1吴佳坤 1宫伟军1
作者信息
- 1. 中机中联工程有限公司,重庆 400000
- 折叠
摘要
采用数值模拟的方法对路桥过渡段的变形特性进行了研究,对比分析了原始路桥过渡段模型和高压喷射注浆模型的沉降变化规律.原始路桥过渡段的纵向沉降呈"勾"形分布,最大沉降值为-9.2 cm,其差异性沉降呈先减小后增大再减小的变化规律.两种工况横向上的沉降最大值为-6.2 cm,最小值为-4.9 cm,整体沉降较小.采用高压注浆喷射后,路基纵向和横向的沉降量均得到了有效的控制,纵向上对"勾"形的变形得到了良好的改善,横向上整体的沉降值得以减小.
Abstract
This article uses numerical simulation methods to study the deformation characteristics of the road and bridge transition sec-tion,and compares and analyzes the settlement changes of the original transition section model and the high-pressure jet grouting model.The longitudinal settlement of the original transition section is distributed in a"hook"shape,with a maximum settlement value of-9.2 cm.The differential settlement shows a variation pattern of first decreasing,then increasing,and then decreasing.The maxi-mum lateral settlement of the two working conditions is-6.2 cm,and the minimum value is-4.9 cm,indicating a relatively small o-verall settlement.After using high-pressure grouting and spraying,the longitudinal and transverse settlement of the roadbed was effec-tively controlled,and the deformation of the"hook"shape in the longitudinal direction was well improved,while the overall settlement in the transverse direction was reduced.
关键词
桥头跳车/路桥过渡段/差异性沉降Key words
bridgehead bump/road and bridge transition section/differential settlement引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据