| 时空效应理论在软土深基坑施工中的应用 |
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| 引用本文： | 刘爱华,黎鸿,罗荣武.时空效应理论在软土深基坑施工中的应用[J].地下空间与工程学报,2010,6(3). |
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| 作者姓名： | 刘爱华 黎鸿 罗荣武 |
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| 作者单位： | 中南大学资源与安全工程学院,长沙,410083 |
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| 基金项目： | 国家重点基础研究发展规划973项目 |
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| 摘 要： | 软土深基坑的土体开挖不仅仅是一项简单的土方工程,它直接关系到基坑工程的安全和建设成本。软土分布广,厚度大,埋藏浅,强度低,给深基坑工程的设计与施工带来很大的难度。为了对开挖引起土中应力场、应变场的变化,特别是流变性较大的软土地层的位移等问题进行深入研究,避免软土深基坑工程施工造成的环境破坏和经济损失,从时空优化角度出发,采用时空效应理论中的分区间、分时段等有效措施控制和减小土体可能产生的最大位移,确保工程安全。工程应用结果表明,该方法能充分考虑因土体开挖导致的基坑位移与工程所处空间位置以及所在的施工时段之间的密切关系,在软土深基坑工程施工上具有良好的应用效果。
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| 关 键 词： | 软土基坑 时空效应理论 实时监测 等效土体水平抗力系数 |
Application of the Space-Time Effect Theory in the Soft-Soil Foundation Construction |
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| Liu Aihua,Li Hong,Luo Rongwu.Application of the Space-Time Effect Theory in the Soft-Soil Foundation Construction[J].Chinese Journal of Underground Space and Engineering,2010,6(3). |
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| Authors: | Liu Aihua Li Hong Luo Rongwu |
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| Affiliation: | Liu Aihua,Li Hong,Luo Rongwu(School of Resources and Safety Engineering,Central South University,Changsha 410083,China) |
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| Abstract: | The construction of soft soil deep foundation is not only related to the soil excavation but also associated with the safety and cost of foundation construction.The soft soil,due to its wide spread and great thickness,shallow burial and low strength,will make the foundation construction more difficult.In order to have further research on the variation of stress field and strain field and especially the displacement problem in soft soil with great rheology due to excavation,and to avoid the environment damag... |
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| Keywords: | soft soil foundation space-time effect theory real-time monitoring equivalent lateral resistance factor |
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