發(fā)布時間：2018-07-26 18:05

【摘要】：隨著天津濱海新區(qū)經濟的快速發(fā)展，市政基礎設施也大量建設。濱海新區(qū)分布著大量軟土，如何在軟土地基上修建道路，確保路基既安全穩(wěn)定又經濟合理，成為道路建設中的關鍵問題，，針對此問題，本文開展了以下工作。 首先按照處理機理對常用的軟土地基處理方法進行分類，針對不同方法在天津濱海新區(qū)道路地基處理中的適用性進行了評價。綜合比較多種處理方法，加筋墊層法因具有節(jié)約投資、施工便捷、實踐經驗豐富和工期短等的優(yōu)勢，成為天津濱海新區(qū)道路軟土地基處理的優(yōu)選方法。 市政道路的穩(wěn)定問題一般不突出，重點在于控制沉降。以天津濱海新區(qū)及周邊3個道路工程為例，研究了加筋墊層法在取土坑段、吹填區(qū)段和鹽田蝦池范圍工程中的應用，探討了選擇濱海新區(qū)軟土地基處理方式的影響因素；根據影響因素提出不同處理方案，并對其進行技術和經濟比選，選出最優(yōu)處理方式；對其地基沉降進行分析和預測，確定了沉降觀測的內容和方法，并對觀測結果進行了分析。 本文成果對市政道路工程軟土地基處理方式的確定具有一定的借鑒意義。
[Abstract]:With the rapid economic development of Tianjin Binhai New area, municipal infrastructure is also a large number of construction. There is a large amount of soft soil distributed in Binhai New area. How to build roads on soft foundation to ensure roadbed safety, stability and economy is the key problem in road construction. In view of this problem, the following work has been carried out in this paper. Firstly, according to the treatment mechanism, the commonly used soft soil foundation treatment methods are classified, and the applicability of different methods in the road foundation treatment of Tianjin Binhai New area is evaluated. Compared with many treatment methods, reinforced cushion method has the advantages of saving investment, convenient construction, rich practical experience and short construction period, etc., so it has become the best selection method for the treatment of soft soil foundation on the road in Tianjin Binhai New area. The stability of municipal roads is generally not prominent, the focus is to control the settlement. Taking Tianjin Binhai New area and its surrounding three road projects as examples, this paper studies the application of reinforced cushion method in the project of taking soil pits, filling sections and shrimp ponds in salt fields, and probes into the factors affecting the selection of treatment methods for soft soil foundation in Binhai New area. According to the influencing factors, different treatment schemes are put forward, and the technical and economic comparison is carried out to select the optimal treatment method, and the settlement of the foundation is analyzed and forecasted, the contents and methods of settlement observation are determined, and the observation results are analyzed. The results of this paper can be used for reference in determining the treatment mode of soft soil foundation in municipal road engineering.
【學位授予單位】：天津大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：U416.1

【參考文獻】

相關期刊論文 前6條

1 葛娟;李冬雪;;天津大道綠化設計淺析[J];公路交通技術;2011年02期

2 孫妍;張青青;馬浩原;;軟基工程特性及處理方法研究[J];黑龍江科技信息;2010年01期

3 劉懷河;;軟土地基勘察技術分析[J];建材與裝飾(下旬刊);2007年09期

4 鄭曉宏;;高速公路聯絡線軟土地基處理的施工質量控制[J];建材技術與應用;2009年07期

5 喻澤紅,張起森;土工網與土相互作用機理的有限元分析[J];巖土工程學報;1997年03期

6 保華富,周亦唐,趙川,黃英;聚合物土工格柵加筋碎石土試驗研究[J];巖土工程學報;1999年02期

本文編號：2146857