干湿循环条件下气泡轻质土耐久性的试验研究  

Experimental Study on Durability of Bubble Light Soil under Drying-wetting Cycle Conditions

作　　者：李章珍[1] 梁朋涛 董捷[1] 唐浩[1] 

机构地区：[1]河北建筑工程学院,河北张家口075000

出　　处：《路基工程》2017年第4期109-113,共5页Subgrade Engineering

基　　金：张家口市科学技术研究与发展指令计划项目(1411054A)

摘　　要：基于气泡混合轻质土在干湿循环条件下的试验,研究气泡混合轻质土水稳性的变化规律。通过研究不同气泡及原料土掺量的气泡轻质土在干湿循环条件下无侧限抗压强度的变化规律,分析影响气泡轻质土抗压强度变化的成因。在保证具有较好耐久性前提下,确定适当的配合比范围,为实际工程的应用提供依据。The variation regularity of water stability of bubble mixed light soil is studied based on the tests of bubble mixed light soil under wetting-drying cycle conditions. The variation regularity of unconfined compressive strength of bubble light soil with different bubble and raw soil contents under wetting-drying cycle conditions is studied and the causes that result in the change of compressive strength of bubble light soil are analyzed. The scope of the reasonable mix proportion of bubble mixed light soil is determined under the premise of good durability, providing basis for practical engineering application.

关 键 词：气泡轻质土 水稳性 干湿循环 配合比 吸水率 无侧限抗压强度 

分 类 号：U414.1[交通运输工程—道路与铁道工程]