發(fā)布時間：2018-01-05 08:32

  本文關鍵詞：某工程軟土路基處理技術研究　出處：《大連理工大學》2015年碩士論文　論文類型：學位論文

  更多相關文章： 軟土地基 地基處理 有限元分析法

【摘要】：近年來,我國道路與鐵路事業(yè)蓬勃發(fā)展。截至2014年底,中國大陸高速公路的通車總里程達11.2萬公里,居世界第一位；到2020年,預計我國鐵路通車里程將會達到12萬公里以上。在高速建設的同時不可避免的會遇到各種各樣的施工技術問題,軟土路基處理技術就是其中一個比較常見的問題。本文介紹了軟土地基的概念,總結(jié)了軟土地基處理技術的發(fā)展狀況,并以某工程為例,針對工程中出現(xiàn)的問題,運用軟土地基理論進行分析,最終給出符合實際的解決方法。本文介紹了東通道前莊鐵路軟土地基段的基本概況,指出了路基施工中出現(xiàn)的沉陷問題。針對此工程問題,對勘察、設計和施工進行分析,運用有限元分析法,明確產(chǎn)生路基塌陷下滑的原因,根據(jù)工程實際制定軟土地基處理方案,將該路堤地段水泥砂漿樁變更為預應力混凝土管樁,經(jīng)過計算驗證和工后監(jiān)測,處理效果良好。此外,本論文還提出了在遇到地基塌陷問題時的工作流程以及處理辦法。
[Abstract]:In recent years, China's road and railway development. By the end of 2014, Chinese, highway mileage reached 112 thousand kilometers, ranking first in the world; by 2020, is expected to China's railway mileage will reach 120 thousand kilometers or more. Construction technology in high speed construction at the same time inevitably will encounter a variety of the soft soil subgrade treatment technology, which is a more common problem. This paper introduces the concept of soft soil foundation, summarizes the development condition of the soft soil foundation treatment technology, taking a project as an example, according to the present problems in engineering, using the theory of soft soil foundation are analyzed, the final solution is consistent with the actual this paper introduces the basic situation of the east channel before the railway Zhuang softground, pointed out that the settlement of problems in roadbed construction. For this project, the survey, design and construction of Analysis of the application of finite element analysis, a clear cause of subgrade subsidence decline, according to the formulation of soft soil foundation treatment scheme of engineering practice, the embankment of cement mortar pile change for prestressed concrete pipe pile, through calculation and monitoring after construction, the treatment effect is good. Besides, the paper also puts forward some problems encountered in foundation subsidence the working process and treatment measures.

【學位授予單位】：大連理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：U416.1

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本文編號：1382371