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北京佳程广场深基坑支护工程设计与施工技术
引用本文:孙健,王发民,刘辉.北京佳程广场深基坑支护工程设计与施工技术[J].探矿工程(岩土钻掘工程),2005,32(2):18-20.
作者姓名:孙健  王发民  刘辉
作者单位:1. 中国地质大学<北京>工程技术学院,北京,100083
2. 北京长建双桥建筑工程公司,北京,100024
摘    要:护坡桩、挡土墙、预应力锚杆、压力注浆等施工工艺在一个深基坑支护工程中的综合应用,尤其在采用了挡土墙与桩锚组合支护方案后,改变以往为控制变形采用刚性支点法的设计思路,用弹性支点法在允许变形范围内设计护坡桩与锚杆,大大降低了工程造价,保证了基坑支护系统的安全性、可靠性和经济性,并取得成功。概述以上施工方法的设计、主要技术措施及几点重要的结论。

关 键 词:深基坑  组合支护  护坡桩  挡土墙  预应力锚杆  压力注浆  变形观测
文章编号:1672-7428(2005)02-0018-03
修稿时间:2004年12月10

Project Design and Engineering Tech. for Deep Foundation Pit Support in Beijing Jiacheng Plaza
SUN Jian,WANG Fa-min and LIU Hui.Project Design and Engineering Tech. for Deep Foundation Pit Support in Beijing Jiacheng Plaza[J].Exploration Engineering:Rock & Soil Drilling and Tunneling,2005,32(2):18-20.
Authors:SUN Jian  WANG Fa-min and LIU Hui
Affiliation:China University of Geosciences;China University of Geosciences;Beijing Changjian Shuangqiao Constructional Engineering Company
Abstract:Application of combination of slop shield piles, soil block wall, pre-stressed anchor, pressure grouting, especially the combination of soil block wall and pile anchor, changed the conventional design consideration of controlling deformation by rigidity pivot. Using elasticity pivot method to design the slop shield piles and anchor within the limitation of deformation permission has greatly deduced the cost of project, and ensured the security, reliability and economy of pit support system. The design, main technical measures, and several conclusions of the project method mentioned above were also introduced.
Keywords:deep foundation pits  combined support  slop shield piles  soil block wall  pre-stressed anchor  pressure grouting  deformation observation  
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