不同改良剂对红壤土水特征曲线及吸附强度的影响
不同改良剂对红壤土水特征曲线及吸附强度的影响
About this item
Full title
Author / Creator
LIU Wujiang , DUAN Qingsong , YANG, Song , XIONG Shoude , BAO Ruiqin , LI, Liyang and ZHANG, Chuan
Publisher
Xinxiang City: Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage
Journal title
Language
Formats
Publication information
Publisher
Xinxiang City: Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage
Subjects
More information
Scope and Contents
Contents
S284; [目的]向边坡土壤内加入改良剂会对土体水分产生较大影响,揭示此过程中土水特征曲线及吸附强度的变化规律可为采用改良剂进行边坡治理提供依据.[方法]通过测定不同配比的糯米胶、木纤维、糯米胶/木纤维混施的红壤土的基质吸力ψ和体积含水率θv,绘制土水特征曲线并分析典型特征参数变化;采用直剪试验测定不同改良剂红壤饱和状态的内摩擦角ψ,结合Fredlund双应力变量抗剪强度理论,分析不同改良剂对红壤吸附强度τψ的影响.[结果]①糯米胶和木纤维能提高土体饱和含水率θs,混合改良剂反之;糯米胶和混合改良剂会降低土水特征曲线的残余含水率θr,木纤维只有在较低或较高掺量时才会降低残余含水率,反之增高;3种改良剂均能提高土水特征曲线的进气值ψa,混合改良剂＞糯米胶＞木纤维;糯米胶会降低土水特征曲线的残...
Alternative Titles
Full title
不同改良剂对红壤土水特征曲线及吸附强度的影响
Authors, Artists and Contributors
Author / Creator
Identifiers
Primary Identifiers
Record Identifier
TN_cdi_wanfang_journals_ggps202309010
Permalink
https://devfeature-collection.sl.nsw.gov.au/record/TN_cdi_wanfang_journals_ggps202309010
Other Identifiers
ISSN
1672-3317
DOI
10.13522/j.cnki.ggps.2021408
