基于锚杆静压桩加固的超深基坑邻近建筑沉降控制技术  

Settlement Control Technology of Adjacent Buildings in Ultra-Deep Foundation Pit Reinforced by Anchor Rod Static Pressure Pile

作　　者：姜照权 刘俊 孔涛[1] 杨鹏飞 陈永强 刘海涛 JIANG Zhaoquan;LIU Jun;KONG Tao;YANG Pengfei;CHEN Yongqiang;LIU Haitao(The First Company of China Eight Engineering Bureau Ltd.,Jinan 250100,Shandong,China;Hang Lung Properties of Hangzhou Ltd.,Hangzhou 311500,Zhejiang,China)

机构地区：[1]中建八局第一建设有限公司,山东济南250100 [2]杭州恒隆房地产有限公司,浙江杭州311500

出　　处：《建筑施工》2024年第1期85-88,共4页Building Construction

基　　金：中国建筑第八工程局有限公司科技研发项目(KY-2022-04)。

摘　　要：以某多层砌体结构基础加固施工为背景,阐述了锚杆静压桩在超深基坑邻近建筑沉降控制中的应用,重点介绍了锚杆静压桩分批压桩以配合超深基坑土方分层开挖的施工方法。该法采用PLC自动持荷系统,可对锚杆静压桩的长期持荷动态调整桩端压力。监测数据表明:此方法可有效控制超深基坑土方开挖过程中的邻近建筑物沉降,降低施工风险,可为类似项目提供借鉴。Taking the foundation reinforcement construction of a multi-storey masonry structure as the background,this paper expounds the application of anchor rod static pressure pile in the settlement control of buildings adjacent to ultra-deep foundation pit,and emphatically introduces the construction method of anchor rod static pressure pile in batches to cooperate with the earthwork layered excavation of ultra-deep foundation pit.The method adopts PLC automatic load holding system,which can dynamically adjust the pile end pressure for the long-term load holding of the anchor jacked pile.The monitoring data show that this method can effectively control the settlement of adjacent buildings in the process of excavation of ultra-deep foundation pit and reduce the construction risk,which can provide reference for similar projects.

关 键 词：深基坑 锚杆静压桩 基础加固 沉降控制 

分 类 号：TU746[建筑科学—建筑技术科学]