Experimental Study on Lime Improvement of Fluvioglacial Deposits in Mianyang

doi:10.3969/j.issn.1674-0696.2015.03.14

Abstract

Abstract: In order to conduct a comprehensive and systematic research about the change law of engineering property and mechanical properties of fluvioglacial deposits, it conducted indoor experimental research about fluvioglacial deposits under the dosage of lime of 0%,3%,5%,7%,9%,11%, and obtained data of the grain composition, free swell ratio, plasticity index, swell increment, shear strength, CBR, unconfined compressive strength of fluvioglacial deposits modified soil before and after it is improved with lime, and then it ensured the optimum proportion is 7%.

Key words: road engineering, fluvioglacial deposits, grain composition, engineering property, mechanical properties

摘要： 为全面系统地研究绵阳地区冰水堆积土加石灰前后的工程性质及力学性质的变化规律等，对0%，3%，5%，7%，9%，11%石灰掺量下绵阳地区冰水堆积土进行了室内试验研究，得到冰水堆积改良土改性前后的颗粒级配、自由膨胀率、塑性指数、膨胀量、抗剪强度、CBR值和无侧限抗压强度等数据，从而确定其最佳掺灰比为7%。

关键词: 道路工程, 冰水堆积物, 颗粒级配, 工程性质, 力学性质

CLC Number:

Zhu Mingang, Chen Pengyu, Qi Yunlong, Wei Jungang, Tang Weiwu. Experimental Study on Lime Improvement of Fluvioglacial Deposits in Mianyang[J]. Journal of Chongqing Jiaotong University(Natural Science), 2015, 34(3): 67-71.

祝敏刚,陈鹏宇,齐云龙,卫军刚,汤维武. 绵阳地区冰水堆积土石灰改性试验研究[J]. 重庆交通大学学报（自然科学版）, 2015, 34(3): 67-71.

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