摘要
通过对南阳某矿山开采产生的废渣土添加稻草与麦秸秆加筋后开展无侧限抗压强度试验,研究了不同密度渣土、稻草麦秸秆加筋率及不同龄期条件下渣土样的抗压强度特性,并对抗压强度形成的破坏形态机理进行了分析。试验结果表明:渣土干密度、养护龄期和不同麦秸秆和稻草掺量对渣土试样的抗压强度影响显著,当麦秸秆和稻草掺加质量比为0.15%时,28 d龄期后的抗压强度与0%掺量的试样接近,强度为34.871 kPa;养护龄期对于渣土强度提升在21 d达到最优,当加筋率最优时,渣土干密度控制在1.85 g/cm^(3)左右时,试样的抗压强度最大。
Unconfined compressive strength test were conducted on waste soil from a mine in Nanyang reinforced with rice straw and wheat straw to investigate the compressive strength characteristics under varying soil densities,reinforcement ratios,and curing ages.The failure mechanisms were also analyzed.The results indicate that dry density,curing age,and straw content significantly influence compressive strength.At a 0.15%straw content,the 28-day strength(34.871 kPa)approached that of unreinforced samples.Optimal strength improvement occurred at 21 days of curing,with peak performance achieved at a dry density of approximately 1.85 g/cm^(3) under optimal reinforcement conditions.
作者
周亚彬
余沛
郭涛瑜
赵闯
王思灵
ZHOU Yabin;YU Pei;GUO Taoyu;ZHAO Chuang;WANG Siling(School of Civil Engineering,Xinyang University,Xinyang 464000 Henan)
出处
《济源职业技术学院学报》
2025年第2期63-67,共5页
Journal of Jiyuan Vocational and Technical College
基金
信阳学院大学生校级科研项目(2024-DXSXKL-024)
河南省科技攻关项目(242102320347)。
关键词
矿山渣土
稻草
麦秸秆
无侧限抗压强度
mine waste soil
rice straw
wheat straw
unconfined compressive strength
作者简介
周亚彬(2000-),男,河南郑州人,实验员,研究方向为土木工程材料;通信作者:余沛(1982-),男,河南商丘人,副教授,高级工程师,研究方向为土木工程施工与管理。
