泡沫轻质土路基水理特性研究

doi:10.16046/j.cnki.issn2096-5680.2025.02.011

河北水利电力学院学报 ›› 2025, Vol. 35 ›› Issue (2): 61-66.DOI: 10.16046/j.cnki.issn2096-5680.2025.02.011

泡沫轻质土路基水理特性研究

王雅超¹, 张立群¹, 崔宏环¹, 万伟¹, 马江平²

1.河北建筑工程学院土木工程学院,河北省张家口市朝阳西大街13号 075000;
2.张家口通泰控股集团有限公司,河北省张家口市桥西区明德北大街西山底小区3号楼 075000

收稿日期:2024-02-01 修回日期:2024-05-27 出版日期:2025-06-30 发布日期:2025-07-04
通讯作者: 张立群(1972-),男,汉族,河北张家口市人,硕士,教授,主要从事路面路基固体废弃物再利用、桥梁结构安全和耐久性等方面的研究。E-mail:zhanliqun5133@163.com
作者简介:王雅超(1996-),女,汉族,河北张家口市人,研究生在读,主要从事交通基础设施安全防护技术方面的研究。E-mail:1914168825@qq.com
基金资助:
河北建筑工程学院创新基金(XY2024017)

Study on Water Physical Properties of Foam Light Soil Subgrade

WANG Yachao¹, ZHANG Liqun¹, CUI Honghuan¹, WAN Wei¹, MA Jiangping²

1. School of Civil Engineering, Hebei University of Architecture, 075000, Zhangjiakou, Hebei, China;
2. Zhangjiakou Tongtai Holdings Group Co., Ltd., 075000, Zhangjiakou, Hebei, China

Received:2024-02-01 Revised:2024-05-27 Online:2025-06-30 Published:2025-07-04

摘要/Abstract

摘要： 由于路基含水量变化会影响其承载力,所以对不同吸水率和不同粉质黏土掺量的试件进行了无侧限抗压强度试验,分析了泡沫轻质土的峰值强度、残余强度以及割线模量E₅₀的变化规律。结果表明:泡沫轻质土的峰值强度、残余强度及割线模量E₅₀均随粉质黏土掺量和浸水时长的增加而减小;动弹性模量随吸水率的增加呈现先增大后减小的趋势,粉质黏土掺量越高动弹性模量越小;为满足泡沫轻质土的承载力要求且脆性较小,粉质黏土掺量在24%为宜。

关键词: 泡沫轻质土, 峰值强度, 残余强度, 割线模量(E₅₀), 动弹性模量

Abstract: Due to a series of subgrade problems caused by the change of dry and wet environment, in order to study the hydraulic properties of foam light soil subgrade, unconfined compressive strength tests were carried out on specimens with different water content and different silty clay content, and the variation laws of peak strength, residual strength and secant modulus E50 of foam light soil were analyzed. The results show that: (1) the peak strength, residual strength and secant modulus E50 of foam light soil decrease with the increase of silty clay content and soaking time; (2) The dynamic modulus shows a trend of first increasing and then decreasing with the increase of water content, and the higher the content of silty clay, the smaller the dynamic modulus; (3) In order to meet the requirements of the bearing capacity of foam light soil and have less brittleness, the content of silty clay should be 24%.

Key words: foam light soil, peak strength, residual strength, secant modulus(E₅₀), dynamic elastic modulus

中图分类号:

U416.1
TU528

王雅超, 张立群, 崔宏环, 万伟, 马江平. 泡沫轻质土路基水理特性研究[J]. 河北水利电力学院学报, 2025, 35(2): 61-66.

WANG Yachao, ZHANG Liqun, CUI Honghuan, WAN Wei, MA Jiangping. Study on Water Physical Properties of Foam Light Soil Subgrade[J]. Journal of Hebei University of Water Resources and Electric Engineering, 2025, 35(2): 61-66.

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泡沫轻质土路基水理特性研究

Study on Water Physical Properties of Foam Light Soil Subgrade

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