Bioelectric potential of plant undertaking shear strength on shear test
Bioelectric potential of plant undertaking shear strength on shear test
复制标题
在剪切试验中进行剪切强度的植物的生物电势
DOI：
10.1007/978-981-15-2184-3_131
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Kiyonobu Kasama
中科院分区：
文献类型：
--
作者：
Naoki Tashiro;Zentaro Furukawa;Kiyonobu Kasama
植物对土的抗剪强度特性有很大的影响。近年来，植物护坡方法在公共工程中的应用越来越多，根治护坡的机理有望得到进一步阐明。为了弄清植物与土的抗剪强度特性之间的关系，本研究进行了土与植物的剪切箱试验。通过测定植物土的剪应力和强度参数，评价了以植物个数为指标的土体强度特性。此外，在剪切试验中还测量了茎和根的垂直位移、水平位移和生物电势。考虑了植物的生物电势与土壤剪切行为之间的关系。剪切箱试验的结果是，当剪切箱区域有植物存在时，强度参数cd、ϕDwas分别比无根区增大。此外，在显示最大剪应力后，生物电势的幅度也发生了变化。
Plant has a strong influence on shear strength properties of soil. Recently, slope protection method using plant is increased in public works, thus mechanism of preventing slope failure by root is expected to be clarified. In this study, in order to clarify relationships between plant and shear strength properties of soil, shear box tests of soil with plant were conducted. The strength properties of soil focusing on the number of plant were evaluated by measuring shear stress and strength parameters of soil with plant. Furthermore, vertical displacement, horizontal displacement and bioelectric potential of stem and root were measured during shear test. The relationship between bioelectric potential of plant and shearing behaviour of soil was considered. As a result of shear box tests, when plant was existed in the area of shear box, strength parametercd,ϕdwas increased respectively compared with the area without root. Furthermore, amplitude of bioelectric potential was changed after maximum shear stress was shown.