학술논문

Basic study on reinforcement effect of vegetation work using Phalaris arundinacea L. / クサヨシ (Phalaris arundinacea L.) を利用した植生工の地盤補強効果に関する基礎的研究
Document Type
Journal Article
Source
日本緑化工学会誌 / Journal of the Japanese Society of Revegetation Technology. 2023, 49(1):63
Subject
constant pressure direct shear test
herbaceous plant root system
local seedling
reinforcement effect
shear strength
vegetation work
せん断強度
地域性種苗
定圧一面せん断試験
植生工
草本植物根系
補強効果
Language
Japanese
ISSN
0916-7439
1884-3670
Abstract
In this study, soil specimens grown with Phalaris arundinacea L. were prepared and subjected to constant pressure direct shear tests under low vertical stresses simulated at the extreme surface layer of a slope. The test results showed that, similar to previous study conducted on Poa pratensis L., a foreign herbaceous plant, the specimens with more developed root systems in Phalaris arundinacea L. showed increased shear resistance at large shear displacements and improved toughness. In addition, it was confirmed that vegetation work using the local seedling, Phalaris arundinacea L., can have the same or better soil reinforcement effect as Poa pratensis L. if the seeding is done at the appropriate time.