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軟土地基塑排板法處理及PTS曲線系統設計+CAD圖紙

時間:2019-05-04 21:17來源:畢業論文
利用有限元、AutCAD軟件模擬塑料排水板軟土地基的沉降變形,然后與經過計算的軟土沉降值進行比較,最后預測工后沉降。結合具體的工程實踐,能夠為該地區的軟土地基沉降變化規律

摘要:當今社會中,交通運輸越來越發達,在我國,高速公路的蓬勃發展使得公路運輸已經成為運輸的主要力量。然而,受地理位置的限制,許多高速公路不得不修筑在軟土地基上。由于工程地基下經常存在深厚的軟土層,這極大地影響了工程的長期穩定和使用安全,所以在軟土地帶修筑公路經常需要對大面積軟土地基進行加固處理,使得這些地區的建設難度加大。因此,大面積軟土地基處理方法及施工技術的研究對軟土地基的沉降變形以及工后沉降預測方面是急需的。本文結合杭州某高速公路軟土地基處理的實體工程,主要對采用塑料排水板處理軟土地基應力與變形和工后沉降進行了研究 。根據理論與實踐相結合的方法對塑料排水板預壓處理地基的固結沉降規律進行研究和分析,并分析總結了軟土的工程特性和軟土地基處理的各種方法的加固機理、適用范圍和效果評估。并利用有限元、AutCAD軟件模擬塑料排水板軟土地基的沉降變形,然后與經過計算的軟土沉降值進行比較,最后預測工后沉降。結合具體的工程實踐,能夠為該地區的軟土地基沉降變化規律研究和軟基處理及路堤施工提供一定的參考,具有積極的意義。 35151
畢業論文關鍵詞: 軟土;地基處理;塑料排水板;有限元;沉降計算
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.
源`自*六)維[論*文'網www.mmeqir.tw

KeyWords: soft soil;foundation process;plastic drainage board;finite element;settlement calculation
目錄
1 緒論    1
1.1 本課題的提出    1
1.2 課題的研究意義    1
1.3 國內外研究現狀    1
1.3.1 國內外軟基處理的發展及研究現狀    2
1.3.2 國內外軟土地基沉降計算及預測研究現狀    2
1.4 本文研究的主要內容    3
1.5 本章小結    3
2 軟土的工程特性    4
2.1 軟土的定義    4
2.2 軟土的工程特性    5
2.2.1 軟土的流變性    5
2.2.2 軟土的壓縮性    5 軟土地基塑排板法處理及PTS曲線系統設計+CAD圖紙:http://www.mmeqir.tw/gongcheng/20190504/32968.html
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