某超大面积深基坑工程施工方案分析  

Analysis of Construction Scheme for a Large Area Deep Foundation Pit Project

作　　者：王进城[1] 王晨浩 李东阳 WANG Jincheng;WANG Chenhao;LI Dongyang(Bei Fang Investigation,Design&Research CO.,LTD.,Tianjin 300222,China;China Construction Third Engineering Bureau Group(Zhejiang)Co.,Ltd,Hangzhou 311100,China)

机构地区：[1]中水北方勘测设计研究有限责任公司,天津300222 [2]中建三局集团(浙江)有限公司,浙江杭州311100

出　　处：《云南水力发电》2023年第12期146-150,共5页Yunnan Water Power

摘　　要：当前超大面积深基坑工程施工较为常见,基坑围护施工方法越来越多样化。为了满足设计规范要求及加固基坑围护的目的,结合某超大面积深基坑工程施工方案实例,总结了三轴搅拌桩、高压旋喷桩实践经验,采用“先三轴搅拌桩,后高压旋喷桩”施工手段,克服了软土地质缺陷影响,达到了基坑桩基围护技术要求。Currently,the construction of super large deep foundation pits is relatively common,and the construction methods for foundation pit enclosure are becoming increasingly diverse.In order to meet the requirements of design specifications and strengthen the foundation pit enclosure,this paper summarizes the practical experience of triaxial mixing piles and high-pressure rotary jet grouting piles based on an example of a construction plan for a super large area deep foundation pit project.It adopts the construction method of"first three-axis mixing pile,then high-pressure rotary jet grouting pile"to overcome the influence of soft soil geological defects and meet the technical requirements of foundation pit pile foundation support.

关 键 词：超大面积深基坑 施工方案 三轴搅拌桩 高压旋喷桩 

分 类 号：TU753.1[建筑科学—建筑技术科学] TU473