软土地基塑排板法处理及PTS曲线系统设计+CAD图纸
毕业论文关键词: 软土；地基处理；塑料排水板；有限元；沉降计算
Plastic drainage board method to reinforce soft soil foundation and PTS curve system design
Abstract:In modern society,the transportation is more and more developed. In China, with railways, highways, especially the booming highway, road transport has become a major force
orce in transportation. However, restricted geographically, many highways have built on soft ground. Because of recurrent deep soft soil under the foundation, which greatly affects the long-term stability and safety of engineering, so in various projects in the soft soil,it’s often needed to deal with a large area of soft soil reinforcement, so that the construction of these areas is difficult. Therefore, the study of large-scale soft ground treatment methods and construction technology of soft ground and the subsidence and deformation aspects of post-construction settlement prediction is needed. In this paper,combined with a Hangzhou Expressway soft soil processed of entity work ,soft foundation mainly processed with Plastic Drainage Board of stress、deformation and settlement prediction of post-construction workers were studied. According to the method combining the theory and practice,the consolidation settlement law of soft foundation processd with plastic drainage board of preloading is researched and analyzed.At the same time, analyze and summarize soft soil engineering properties and the reinforcement mechanism、range of application and impact assessmen ofvarious methods of soft soil treatment. Combined with the specific engineering samples, it can provide to a certain extent reference for the research of the law of this area’s soft foundation’s settlement change、the process of soft foundation and embankment construction ,which has a positive meaning.
KeyWords: soft soil；foundation process；plastic drainage board；finite element；settlement calculation
目录
1 绪论 1
1.1 本课题的提出 1
1.2 课题的研究意义 1
1.3 国内外研究现状 1
1.3.1 国内外软基处理的发展及研究现状 2
1.3.2 国内外软土地基沉降计算及预测研究现状 2
1.4 本文研究的主要内容 3
1.5 本章小结 3
2 软土的工程特性 4
2.1 软土的定义 4
2.2 软土的工程特性 5
2.2.1 软土的流变性 5
2.2.2 软土的压缩性 5