昆明某软土深基坑支护施工方案设计  

Construction scheme design of deep foundation pit support in soft soil in Kunming

作　　者：郭文强 罗军尧 眭素刚 GUO Wen-qiang;LUO Jun-yao;SUI Su-gang(Gansu Research Institute of Survey and Design of Water Conservancy&Hydropower,730000,Lanzhou,China;Kunming Engineering Corporation Limited of POWERCHINA,650051,Kunming,China;Kunming Prospecting Design Institute of China Nonferrous Metals Industry Co.,Ltd.,650051,Kunming,China)

机构地区：[1]甘肃省水利水电勘测设计研究院有限责任公司,兰州730000 [2]中国电建集团昆明勘测设计研究院有限公司,昆明650051 [3]中国有色金属工业昆明勘察设计研究院有限公司,昆明650051

出　　处：《建筑技术》2023年第11期1308-1312,共5页Architecture Technology

摘　　要：以昆明西山区万达城A2–2深基坑项目为依托,对基坑支护结构设计方案、施工工艺、质量控制要求及土方开挖方案进行研究,确保基坑顺利施工。在详细勘察的基础上,将深基坑划分为6个剖面分区,所有剖面均采用“支护旋挖桩+锚索”支护体系,部分剖面进行局部放坡。通过研判基坑支护施工设计,基坑及周边环境的安全稳定,设计施工方案切实可行。该设计方案支护效果良好、施工工艺简单、成本适中、方案性价比较高、应用性较强,可以为此类基坑支护项目提供借鉴。Design the support construction scheme for the A2-2 deep foundation pit project of Wanda city,Xishan district,Kunming,and carefully study the support structure design scheme,construction technology,quality control requirements and earthwork excavation scheme to ensure the smooth construction of the foundation pit.On the basis of detailed investigation,the deep foundation pit is divided into 6 sections,all sections are supported by the“supporting rotary excavation pile+anchor cable”support system,and some sections are locally sloped.By studying and judging the foundation pit support construction design,the foundation pit and surrounding environment are safe and stable,and the design and construction scheme is feasible.The design scheme has good support effect,simple construction process,moderate cost,high cost performance ratio and strong applicability,which can provide reference for such foundation pit support projects.

关 键 词：深基坑 支护体系 施工方案 

分 类 号：TU13[建筑科学—建筑理论]