既有管线液化地基处理方案探讨  

Discussion on Treatment Scheme of Liquefied Foundation of Existing Pipeline

作　　者：于媛福 吴彬 Yu Yuanfu;Wu Bin(Beijing General Municipal Engineering Design and Research Institute Co.,Lud.,100082,China)

机构地区：[1]北京市市政工程设计研究总院有限公司,100082

出　　处：《特种结构》2024年第3期99-103,共5页Special Structures

摘　　要：本文介绍了河南地区某一管线工程在钢板桩施工过程中对严重液化场地产生了扰动,导致临近厂房产生了地面开裂及结构损伤的工程实例。通过对事故原因的分析及综合考虑场地的各种不利因素,同时对几种常用液化场地处理方式进行比选,最终得出了压力注浆的方式可消除液化,可应用于液化场地时对既有管线的地基处理。In this paper,an example of a pipeline project in Henan Province was introduced,which caused disturbance to the severely liquefied site during the construction of steel sheet pile,resulting in ground cracking and structural damage.Through the analysis of the accident causes and the comprehensive consideration of vari-ous adverse factors of the site,and the comparison of several common methods for the treatment of liquefaction site,it was concluded that the method of pressure grouting could eliminate liquefaction and could be applied to the foundation treatment of existing pipelines in the liquefaction site.

关 键 词：液化场地 地基处理 压力注浆 

分 类 号：TU472[建筑科学—结构工程]