Results 1 to 10 of about 4,009 (146)
Root Tensile Characteristics of Herbaceous Plants from Source Areas of Lanniqing Landslide in Zhaotong City, Yunnan Province [PDF]
, 2023 [Objective] The tensile strength characteristics of plant roots were studied to understand the performance of roots in complexes, in order to provide a basis for the selection of plants to be used in ecological slope protection.
Chen Yunying +4 more
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Mechanical Properties of Medicago Sativa and Euphorbia Hypericifolia Root-Soil Complex [PDF]
, 2023 [Objective] The effects of soil moisture content and root area ratio on the soil consolidation effect of Medicago sativa and Euphorbia hypericifolia root systems and the interaction mechanism of root-soil were studied in order to provide scientific basis
Hai Long, Tan Shilin, Xu Bo
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Effects of Different Plant Spacings on Preferential Flow Development Characteristics of Vetiver Plant Slopes [PDF]
, 2022 [Objective] The development characteristics of preferential flow for a vetiver slope and the relationship between vetiver roots and preferential flow were analyzed in order to provide a theoretical basis for further study on the influence of plant roots ...
Jiang Xueliang +4 more
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Jianzhu Gangjiegou Jinzhan, 2023 为了探究钢-混凝土组合梁高强螺栓连接件在拉剪复合作用下的承载性能，采用ABAQUS有限元软件建立了推出试件有限元模型，并通过与试验结果对比验证了数值模拟的可靠性。探讨了拉拔力荷载、螺栓预拉力、混凝土强度、螺栓预留孔隙和摩擦系数等参数对极限抗剪承载力、极限滑移和滑移后刚度的影响。分析结果表明：高强螺栓连接件的抗剪承载力随着拉拔力荷载的增大而减小，随着螺栓预拉力、混凝土强度和摩擦系数的增大而提高，预留孔隙对抗剪承载力影响较小，但对刚度影响较大。提出螺栓抗拉剪共同作用承载力计算公式，在拉剪共同作用极限状态下 ...
潘晨, 邢颖, 郭琪, 刘雁斌
doaj
, 2021 火后泥石流由起动条件的不同可以分为表面径流型火后泥石流和浅层滑坡型火后泥石流。由于表面径流型火后泥石流 多发生于火灾后的前两年，水土流失严重，灾害效应明显，因此，大多数研究集中在表面径流型火后泥石流。然而，对于火灾 较长时间后发生的浅层滑坡型火后泥石流，现有研究相对较少，这制约了人们对于浅层滑坡型火后泥石流起动条件和起动机理 的认知。与表面径流型火后泥石流相比，浅层滑坡型火后泥石流的形成主要是由于根-土强度的退化导致。因此，定量测定火灾 后根和土强度的衰减，是了解浅层滑坡型火后泥石流机理的必要条件 ...
倪钧钧, 崔一飞, 李尧, 雷鸣宇
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Jianzhu Gangjiegou Jinzhan, 2022 为了探究钢-混凝土组合梁中摩擦型高强螺栓抗剪连接件的受剪性能，采用ABAQUS有限元软件建立了抗滑移试件和推出试件有限元模型，并通过与试验结果的对比验证了数值模拟的可靠性。试件抗滑移性能与螺栓预拉力密切相关，且在螺栓杆应力状态处于弹性工作范围时，预拉力的施加取决于混凝土的局部抗压损能力。通过数值分析研究了垫片尺寸、混凝土强度和混凝土板厚度、螺栓直径和强度等级对螺栓预拉力的影响。此外，通过对推出试件进行有限元参数化分析，研究了混凝土强度、混凝土板厚度、螺栓预拉力和螺栓直径对抗滑移强度 ...
刘雁斌 +4 more
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The study on Anchor''s behavior of Vertical anchor in Gravel Deposites in Taichung Area [PDF]
, 2014 摘 要 地錨在基礎工 程中之應用範圍非常廣泛，但在推估單 支地錨之容許荷重時，由於 存在相當多之不確定性，如錨 碇端與周圍土壤複雜之互制作用、現場裝 設作業與灌漿過 程對錨碇端附近土壤之擾動、地層變化等之綜合影響， 再 加上地錨的設計理論仍未完善，使得設計者往往無法掌握 ...
Chou, Pang-Yen, 周邦彥
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Jianzhu Gangjiegou Jinzhan, 2022 以秸秆板作为冷弯薄壁型钢组合墙体的结构板，可提高轻钢建筑的生态性和宜居性。冷弯薄壁型钢组合墙体的抗侧力性能和造价严重依赖结构板，因此，需要研究秸秆板对该类组合墙体的抗侧力性能影响。针对冷弯薄壁型钢组合墙体现有支撑形式的弱点，提出一种内置交叉拉条秸秆板覆面的冷弯薄壁型钢组合墙体技术方案，通过低周往复加载试验与数值分析研究秸秆板和内置拉条对组合墙体抗侧力性能的贡献。研究结果表明，单面秸秆板+内置拉条的墙体抗侧峰值承载力为双面秸秆板墙体性能的71.2%，且该类墙体的抗侧刚度和峰值承载力依次为：双面秸秆板 ...
徐博文, 姜宝石
doaj
Mechanical mechanism and parameters sensitivity analysis of the steel frame-geotextile system for the pre-reinforcement of flow plastic soil [PDF]
In reclamation projects for port construction, the pre-reinforcement of flow plastic fill soils is critical for promoting deep drainage consolidation and enhancing subgrade bearing capacity.
Jianing HUANG +5 more
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Effects of Different Types of Pectin on the Properties and Structure of Gelatin Essential Oil Edible Films [PDF]
In this study, the essential oils cinnamaldehyde, eugenol, and anisaldehyde were complexed to investigate their bacteriostatic properties against Escherichia coli, Pseudomonas aeruginosa, Bacillus subtilis, and Pseudomonas oryzae.
Boyu JIN +3 more
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