Applicability of Fly-Ash for High Embankment in Widening Engineedng

doi:10.3969/j.issn.1674-0696.2014.02.13

Abstract

Abstract: Based on the field tests and theoretical analysis , the applicahility of f1y ash as fillers in the subgrade widening construction was analyzed. The mechanical responses of two parts which were separately filled by the fly ash and soil with geogrid were compared. The settlement rules of the suhgrade and foundation in the suhgrade widening construction filled by f1y ash and reinforced by geogrid were studied. The rationality and applicability of f1y ash in filling the high embankment were also analyzed

Key words: road engineering, Subgrade widening, high embankment, fly ash subgrade, mechanical response, settlement rule

摘要： 针对粉煤灰作为高速公路拓宽工程路基填料的适用性问题展开现场试验与理论研究，对比分析r 分别铺设有土工格栅的粉煤灰填筑拓宽段与素土填筑拓宽段的力学响应特征，重点研究了铺设土工格栅后粉煤灰填筑高填方拓宽路基时路基本体与地基的沉降规律，验证了粉煤灰作为高速公路拓宽填料的可行性与适用性。

关键词: 道路工程, 路基拓宽, 高填方路基, 粉煤灰路基, 力学响应, 沉降规律

CLC Number:

U416.1

Zhang Xiaolei , Hu Haiyan. Applicability of Fly-Ash for High Embankment in Widening Engineedng[J]. Journal of Chongqing Jiaotong University(Natural Science), 2014, 33(2): 58-62.

张晓磊，胡海彦. 粉煤灰在高填方路基拓宽工程中的适用性研究[J]. 重庆交通大学学报（自然科学版）, 2014, 33(2): 58-62.

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