|本期目錄/Table of Contents|

[1]孫高峰,王金霞,楊旸,等.草本植物根系提高土體無側限抗壓強度及Wu & Waldron模型預測[J].江蘇農業科學,2019,47(14):263-268.
 Sun Gaofeng,et al.Herbaceous roots improve unconfined compressive strength of soil mass and prediction of Wu & Waldron model[J].,2019,47(14):263-268.
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草本植物根系提高土體無側限抗壓強度
及Wu & Waldron模型預測
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《江蘇農業科學》[ISSN:1002-1302/CN:32-1214/S]

卷:
第47卷
期數:
2019年第14期
頁碼:
263-268
欄目:
農業工程與信息技術
出版日期:
2019-08-10

文章信息/Info

Title:
Herbaceous roots improve unconfined compressive strength of soil mass and prediction of Wu & Waldron model
作者:
孫高峰1 王金霞2 楊旸3 趙燚柯1 劉宇飛1 段青松1
1.雲南農業大學水利學院/國土資源科學技術工程研究中心,雲南昆明 650201;
2.西南有色昆明勘測設計研究(院)股份有限公司,雲南昆明 650051; 3.河海大學水利水電學院,江蘇南京 210098
Author(s):
Sun Gaofenget al
關鍵詞:
草本植物根系無側限抗壓強度固土能力Wu & Waldron模型
Keywords:
-
分類號:
S157
DOI:
-
文獻標志碼:
A
摘要:
研究基于無側限抗壓強度試驗的方法,測定種植在長51.0 cm、直徑110.0 mm、厚3.2 mm的PVC管內的非洲狗尾草、鴨茅和紫花苜蓿3種草本植物根土複合體和素土的黏聚力(C),初步探討了黏聚力增量(ΔC)與破壞面上根面積比(root area ratio,簡稱RAR)、根系平均抗拉強度(Tr[TX-])的相關性;運用Wu & Waldron模型對3種草本植物根系提高土體抗剪能力進行預測。結果表明,非洲狗尾草、鴨茅、紫花苜蓿在0~25 cm深度範圍內的ΔC值分別是4.75、4.04、1.39 kPa;在25~50 cm深度範圍內的ΔC值分別是3.1、2.32、0.71 kPa。紫花苜蓿的ΔC值與破壞面的RARTr[TX-]相關不顯著;非洲狗尾草、鴨茅的ΔC值與破壞面的RAR顯著相關,與Tr[TX-]不相關。Wu & Waldron模型預測的非洲狗尾草、鴨茅、紫花苜蓿根系提高土體抗剪能力值分別是實測值的60.08、50.9、179.08倍。
Abstract:
-

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備注/Memo

備注/Memo:
收稿日期:2018-04-06
基金項目:國土資源部公益性行業科研專項(編號:201511003)。
作者簡介:孫高峰(1992—),男,內蒙古赤峰人,碩士研究生,主要從事土地整治利用的研究。E-mail:781321493@qq.com。
通信作者:段青松,博士,教授,主要從事農業水土工程、土地利用工程的研究。E-mail:258437886@qq.com。
更新日期/Last Update: 2019-07-20