铁路路堤用砂柱路基土的改良:以实例为例

Q3 Engineering

Pollack Periodica Pub Date : 2023-07-24 DOI:10.1556/606.2023.00818

B. Abbas, Talib K. Q. Alsheakayree, Hussain M. Ashour Al Khuzaie, H. Sultan

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引用次数: 0

摘要

4号线的铁路伊拉克南部正在修建高m的堤坝。根据项目现场土壤调查结果，铁路线形在经历不允许沉降的可压缩土壤上延伸。采用砂桩进行了减少沉降的试验。采用所提出的技术对前后土体的沉降进行了非线性分析。结果表明，在没有任何改善的情况下，可压缩粘土层上铁路路堤的预期总沉降为170.2 mm。通过插入直径为0.3的颗粒桩 m、沉降量降至88.7 mm，减小范围为～48%。

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Improvement of subgrade soil with sand columns for construction railway embankment: A case study

A railway on 4 m height embankment is being built in the south of Iraq. The railway alignment is extending on a compressible soil experienced impermissible settlement according to the results of soil investigation of the soil at the project site. A trial for reducing the settlement was done adopting sand piles. Nonlinear analysis was conducted to evaluate the settlement of soil before and after using the proposed technique.The results indicated that without any improvement, the expected total settlement of the railway embankment on the compressible clay layer is 170.2 mm. By inserting granular piles of diameter 0.3 m, it was obtained settlement decreases to 88.7 mm with reduction being in range of ∼48%.

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来源期刊

Pollack Periodica Engineering-Civil and Structural Engineering

CiteScore

1.50

自引率

0.00%

发文量

期刊介绍： Pollack Periodica is an interdisciplinary, peer-reviewed journal that provides an international forum for the presentation, discussion and dissemination of the latest advances and developments in engineering and informatics. Pollack Periodica invites papers reporting new research and applications from a wide range of discipline, including civil, mechanical, electrical, environmental, earthquake, material and information engineering. The journal aims at reaching a wider audience, not only researchers, but also those likely to be most affected by research results, for example designers, fabricators, specialists, developers, computer scientists managers in academic, governmental and industrial communities.