<?xml version="1.1" encoding="utf-8"?>
<article xsi:noNamespaceSchemaLocation="http://jats.nlm.nih.gov/publishing/1.1/xsd/JATS-journalpublishing1-mathml3.xsd" dtd-version="1.1" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><front><journal-meta><journal-id journal-id-type="publisher-id">WCEST</journal-id><journal-title-group><journal-title>Water Conservancy and ElectricPower Science and Technology</journal-title></journal-title-group><issn>2995-4371</issn><eissn>2995-438X</eissn><publisher><publisher-name>Art and Technology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.61369/WCEST.2026020015</article-id><article-categories><subj-group subj-group-type="heading"><subject>Article</subject></subj-group></article-categories><title>黄河上游河岸根土复合体抗剪强度特性试验研究</title><url>https://artdesignp.com/journal/WCEST/4/2/10.61369/WCEST.2026020015</url><author>陈欢欢,张峻岭,张子刚,曾阳益,吕娜,丁云龙,梁凯,张鼎</author><pub-date pub-type="publication-year"><year>2026</year></pub-date><volume>4</volume><issue>2</issue><history><date date-type="pub"><published-time>2026-02-20</published-time></date></history><abstract>为探究黄河上游河岸草本植物根系对边坡浅层土体的加固机理，定量揭示含水率与含根率对根土复合体抗剪强度的影响规律，本文以狗牙根根系和砂质粉土为研究对象，采用室内应变控制式直接剪切试验，设置4组含水率梯度、5组含根率梯度，在50~300kPa四级法向应力下开展试验测试，剖析根土复合体应力-位移特征、抗剪强度演化规律及抗剪强度指标响应特性。结果表明：素土与根土复合体应力-位移曲线均呈应变硬化型，狗牙根根系可有效提升土体抵抗变形能力；含水率与含根率均存在最优值，含水率20%（接近土样最优含水率18.3%）、含根率0.75%时根系加筋效果最佳，抗剪强度最大增幅达44.17%；含水率和含根率对复合体黏聚力影响显著，对内摩擦角扰动较小，黏聚力最大增幅可达83.39%，草本根系主要通过提升土体黏聚力实现固土护坡效果。研究成果可为植被护坡工程的参数设计与稳定性评估提供试验依据。</abstract><keywords>根土复合体,狗牙根,抗剪强度,含水率,含根率,直剪试验,植被护坡</keywords></article-meta></front><body/><back><ref-list><ref id="B1" content-type="article"><label>1</label><element-citation publication-type="journal"><p>[1]周云艳. 植物根系固土机理与护坡技术研究[D].中国地质大学,2010.[2]Wu,TH,Watson,et al.In situ shear tests of soil blocks with roots[J].Canadian Geotechnical Journal, 1998.[3]Waldron L J .The Shear Resistance of Root-Permeated Homogeneous and Stratified Soil1[J].Soil Science Society of America Journal, 1977,41(5):843-849.[4]Gray H D ,Ohashi H .Mechanics of Fiber Reinforcement in Sand[J].Journal of Geotechnical Engineering,1983,109(3):335-353.DOI:10.1061/(ASCE)0733-9410(1983)109:3(335).[5]卢海静, 王磊, 翟国良, 等. 植物根-土复合体原位剪切试验研究现状及其进展[J].中国水土保持, 2013(7):5.[6]王华, 赵志明, 何刘. 不同植被类型根系固土效应的试验研究[J].铁道建筑, 2009(11):3.</p><pub-id pub-id-type="doi"/></element-citation></ref></ref-list></back></article>
