| 1. | Finite element analysis of composite soil nailing for soft soil excavation support 软土基坑复合土钉支护的有限元分析 |
| 2. | Nonlinear 3d finite element analysis of an extremely deep excavation support system 某特深基坑支护的非线性三维有限元分析 |
| 3. | Study on tree - root pile applied to foundation pit excavation support for existing factory plant under special geologic conditions 树根桩围护在老厂房内特殊条件下的施工研究 |
| 4. | Finite element numerical simulation of deep foundation pit excavation supported by frozen soil wall with nonhomogeneous temperature distribution 非均匀温度分布冻土墙围护深基坑开挖的有限元数值模拟 |
| 5. | The deformation of deep excavation supported by soil nail is unsuitable to strict requirement of deep excavation 摘要土钉支护对基坑变形的调节和控制能力较差,不适于对变形控制要求较严格的深基坑工程。 |
| 6. | Proposal design for foundation pit excavation support for east special area of traffic center in terminal section of shanghai pudong international airport phase project 上海浦东国际机场二期交通中心东侧特殊区域围护方案的设计 |
| 7. | Proposal optimization and practice on large and deep foundation pit excavation support for main building in terminal section of shanghai pudong international airport phase project 上海浦东国际机场二期航站区主楼深大基坑的围护方案优化及实践 |
| 8. | The reliability of design and construction of excavation has been becoming more and more important , due to increasing of quantity and operational difficulty of the deep excavation supporting system 深基坑围护工程施工难度和数量不断增加,基坑设计和施工的可靠性变得越来越重要。 |
| 9. | In order to make a safe and economical design of a deep excavation support system , it is require to make a comprehensive and scientific analysis on the working state of the excavation support system , expecially its deformations , in this paper , a new finite element method based on the team - column theory , which takes into account the effect of release of lateral resistance force and transformation of structure model , is put forward in the light of the characteristics of a soft soil foundation 为了能够安全、经济地进行基坑支护设计,需要全面、科学地分析支护体系的工作状态,尤其是支护体系的变形状态。针对软土地基的特性,本文提出了考虑土体抗力释放与结构模型随施工过程改变的新杆系有限元法,并编制了求解支护结构内力与变形的计算程序。 |
| 10. | Secondly , another 2d - fem analysis is made on a practical engineering of foundation pit excavation supported by soil - nailed system . then the different distributions of tensile stress , shear stress , plastic failure zone and horizontal displacement obtained by analysis for non - supporting and soil - nailed supporting step - by - step excavation are compared with each other . some conclusions about mechanism of soil - nailed supporting system are reached from above comparisons 在计算方法与本构模型研究中,重点对ansys中基于drucker - prager弹塑性本构模型的岩土体d - p材料作了分析,指出了此材料没有对拉应力限制的缺陷并提出在计算过程中必须密切注意拉应力的大小及分布;同时提出了基坑分步开挖与支护的数值模拟过程。 |