临近建筑物有限宽度土体深基坑支护设计与施工
摘要:基于朗肯土压力理论假设和极限平衡理论,将有限宽度土体折算成等效容重的半无限大土体,使二者水平向土压力一致,利用支护软件进行了神华大厦有限宽度土体基坑工程的设计,并在设计中应用了大角度锚杆及局部双排桩。经变形监测,基坑支护结构变形指标均达到设计要求,支护效果良好。类似条件下的支护工程可以借鉴。
Abstract:On the basis of the assumptions of Rankine's earth pressure theory and the Limit Equilibrium theory, the limited width soil is translated into the semi-space soil, so that their horizontal earth pressures are fitted to each other. Then, as an example, a deep foundation pit to protect the limited width soil is designed and constructed according to the software of pit-retaining. In addition, large-angle anchors and double-row piles at certain place are applied in this design. As a result, the monitored horizontal displacements are all within the standard limit of design, therefore it can be a reference for similar projects.
中文标题：
临近建筑物有限宽度土体深基坑支护设计与施工
Design and Construction of Retaining Structures for Deep Foundation Pit to Protect Limited Width Soil
作者：
张怀文,吉晓朋,车东
Zhang Huaiwen,Ji Xiaopeng,Che Dong
作者简介:张怀文,1970年生,男,汉族,天津人,工学硕士,主要从事边坡支护、地基处理工程的设计、施工。E-mai:hzhanghuaiwe@sohu.com
通讯地址：
中航勘察设计研究院, 北京 100098
InstituteofAIGE,Beijing100098China
中图分类号:TU413.6
出版物：岩土工程技术
收稿日期:2008-09-01
网络出版日期:2021-07-07
关键词:深基坑,基坑支护,极限平衡,双排桩,大角度锚杆
Key words:deep foundation pit,retaining for foundation pit,limit equilibrium,double-row piles,large-angle anchor
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