Query：
学者姓名：豆红强
Refining：
Year
Type
Indexed by
Source
Complex
Former Name
Co-
Language
Clean All
Abstract ：
Although the root can enhance the soil's strength, vegetation cover landslide still occurs frequently under the rainfall. To elucidate the mechanism underlying the degradation of the shear strength of root-soil composites under the influence of moisture, we investigated trees from hilly slopes in southeastern China. The tensile mechanical properties of roots were tested under varying moisture conditions.The results of previous work on the friction characteristics of the root-soil interface under different soil water content were also considered. Furthermore, large-scale direct shear tests were performed to assess the strength characteristics of root-soil composites under different root cross-sectional area ratios (RAR) and moisture contents. Based on the widely used Wu model, and incorporating the failure modes of roots in root-soil composites and the mechanism of root-soil interface friction, a root-soil composite strength degradation model was established considering the effects of moisture. Moisture significantly affected the tensile strength of fine tree roots, with the tensile strength of fine roots being lower in the saturated state than in the fresh state. In contrast, coarse roots were almost unaffected by moisture. As the moisture content increased, the additional strength provided by the roots decreased, and the root efficiency (REp) decreased significantly. The model was validated against experimental data, and the calculated results were accurate. In root-soil composites, as moisture infiltrates, the tensile strength of the roots, soil shear strength, and root-soil interface shear strength decrease to different degrees. This results in reduced resistance to deformation in the root-soil composites, leading to a decrease in its strength.
Keyword ：
Moisture content Moisture content Root reinforcement Root reinforcement Root-soil interface friction Root-soil interface friction Root tensile strength Root tensile strength Strength degradation model Strength degradation model
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Lin, Yunzhao , Jian, Wenbin , Wu, Yilong et al. Degradation of the mechanical properties of root-soil composites under moisture influence [J]. | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT , 2025 , 84 (3) . |
| MLA | Lin, Yunzhao et al. "Degradation of the mechanical properties of root-soil composites under moisture influence" . | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 84 . 3 (2025) . |
| APA | Lin, Yunzhao , Jian, Wenbin , Wu, Yilong , Zhu, Zuteng , Wang, Hao , Dou, Hongqiang et al. Degradation of the mechanical properties of root-soil composites under moisture influence . | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT , 2025 , 84 (3) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
The infiltration-runoff process plays a crucial role in hydrological studies. The influences of rainfall patterns and slope gradients on the infiltration-runoff process are not yet fully understood, particularly under field conditions. In-situ monitoring and experiments were conducted to investigate the effects of a uniform rainfall pattern (UR, q = 17.5 mm h- 1 and q = 35 mm h- 1), the Chicago rainfall pattern (CR), and different slopes (beta = 5 degrees and 25 degrees) on the infiltration, runoff, and sediment yield. The CR pattern is a mathematical model used to simulate natural rainfall based on historical rainfall data for a specific region. The results show that the response times of both the volumetric water content (VWC) and matric suction are directly proportional to depth, whereas their magnitudes are inversely proportional. The soil water characteristic curve (SWCC) obtained using the van Genuchten (vG) model can be established based on monitoring data for the drying path. The rainwater transformation is altered by the CR pattern, prolonging the initial runoff time and reducing rainfall infiltration. The infiltration and runoff rate curves, which mirror the rainfall pattern, exhibit peak values that increase both the cumulative runoff and sediment yield. The runoff rate, shear stress, and hydraulic power are significantly increased by increasing the slope angle. This positively contributes to the runoff and sediment yield and reduces the rainfall infiltration. The soil water profile during infiltration can be qualitatively divided into three stages. A time correction parameter, which is highly related to the initial runoff time, is incorporated into the Kostiakov model to more precisely predict the infiltration process. This paper presents a novel approach for applying the CR pattern to hillslope hydrology. Our findings improve the understanding of the effects of rainfall patterns and gradients on rainwater transformation and sediment yield and provide a scientific reference for hydrological modelling.
Keyword ：
Artificial rainfall Artificial rainfall Chicago rainfall pattern Chicago rainfall pattern Rainfall response Rainfall response Runoff analysis Runoff analysis Unsaturated soil Unsaturated soil
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Chen, Ruimin , Dou, Hongqiang , Lin, Yunzhao et al. In-situ infiltration-runoff characterization of slopes under the influences of different rainfall patterns and slope gradients [J]. | CATENA , 2024 , 247 . |
| MLA | Chen, Ruimin et al. "In-situ infiltration-runoff characterization of slopes under the influences of different rainfall patterns and slope gradients" . | CATENA 247 (2024) . |
| APA | Chen, Ruimin , Dou, Hongqiang , Lin, Yunzhao , Liu, Qingling , Jian, Wenbin . In-situ infiltration-runoff characterization of slopes under the influences of different rainfall patterns and slope gradients . | CATENA , 2024 , 247 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
以高寒高海拔区某大型光伏电站中平单轴光伏支架系统为背景,依托ABAQUS有限元模拟软件,构建大跨度平单轴光伏支架-基础-面板一体化三维有限元模型,探讨极端环境下平单轴光伏跟踪系统关键构件的受荷特性与失稳变形机制,并藉此提供针对性的优化设计建议.结果表明,受极端风荷载作用,该大跨度平单轴光伏系统在最大跟踪角度下,其檩条最大应力达544.4 MPa,立柱最大位移达76.3 mm,致使局部檩条、H型钢桩存在潜在屈服破坏风险;上部结构各构件的变形与其所处位置有关,整体表现为沿主梁长轴方向呈波浪线型分布,两立柱的跨中位置同样多发生较大位移,且在光伏组件悬臂端部最为明显,其在风荷载作用下的最大变形甚至达153.2 mm.针对大跨度平单轴跟踪光伏系统中的薄弱部位,提出可增强局部构件的强度或改变局部结构特征等优化建议以增强其整体稳定性.
Keyword ：
光伏系统 光伏系统 力学特性 力学特性 平单轴 平单轴 数值模拟 数值模拟 极端荷载 极端荷载 跟踪 跟踪
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 王龙威 , 李如 , 豆红强 et al. 平单轴光伏跟踪支架-基础受荷特性与优化设计 [J]. | 太阳能学报 , 2024 , 45 (10) : 345-353 . |
| MLA | 王龙威 et al. "平单轴光伏跟踪支架-基础受荷特性与优化设计" . | 太阳能学报 45 . 10 (2024) : 345-353 . |
| APA | 王龙威 , 李如 , 豆红强 , 谢森华 . 平单轴光伏跟踪支架-基础受荷特性与优化设计 . | 太阳能学报 , 2024 , 45 (10) , 345-353 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Landslides frequently occur in heavily vegetated areas of southeast Fujian Province due to typhoon rainstorms. Investigating the failure mechanisms and evolution patterns of landslides influenced by vegetation, rainfall, and strong winds is crucial for disaster mechanism, monitoring, and early warning of typhoon-induced landslides in densely vegetated regions. This study focuses on the Yangxie landslide in Yongtai County, Fujian Province, investigating response patterns and analysis methods for vegetated slope stability under wind-driven rain conditions. Pulling tests on moso bamboo and single-ring infiltration tests were conducted, integrating the Green-Ampt model and infinite side slope model. Detailed main results include: 1) Bamboo’s maximum wind resistance ranges from 18 m/s to 30 m/s, corresponding to wind forces of 8 to 11. 2) Soil infiltration capacity in the windward area increases with wind speed, remaining constant at 0–12 m/s but rising rapidly beyond 12 m/s. 3) The wetting front’s migration speed in the root-soil zone accelerates with increasing wind speed and rainfall. Typhoons disturb soil by swaying vegetation to create preferential flow, mainly accelerating the wetting front’s migration speed. Wind speed significantly impacts soil infiltration capacity under wind, rain, and vegetation interactions. 4) During typhoon rainstorms, wind loads enhance rainfall infiltration in the root-soil zone through vegetation, thereby speeding up the wetting front’s migration. This process is critical for typhoon-induced landslide occurrence and development. © 2024 Biodiversity Research Center Academia Sinica. All rights reserved.
Keyword ：
Aerodynamic loads Aerodynamic loads Bamboo Bamboo Disasters Disasters Infiltration Infiltration Landslides Landslides Rain Rain Slope protection Slope protection Soil testing Soil testing Tropics Tropics Wind stress Wind stress
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Lin, Bin-Qiang , Zhang, De-Sheng , Jian, Wen-Bin et al. Response of vegetated slope stability under wind-driven rain conditions [J]. | Rock and Soil Mechanics , 2024 , 45 (9) : 2765-2774 . |
| MLA | Lin, Bin-Qiang et al. "Response of vegetated slope stability under wind-driven rain conditions" . | Rock and Soil Mechanics 45 . 9 (2024) : 2765-2774 . |
| APA | Lin, Bin-Qiang , Zhang, De-Sheng , Jian, Wen-Bin , Dou, Hong-Qiang , Wang, Hao , Fan, Xiu-Feng . Response of vegetated slope stability under wind-driven rain conditions . | Rock and Soil Mechanics , 2024 , 45 (9) , 2765-2774 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Taking a large-scale photovoltaic power station in alpine and high-altitude area with flat uniaxial photovoltaic racking system as the background，relying on ABAQUS finite element simulation software，we constructed an integrated three-dimensional finite element model of large-span flat uniaxial photovoltaic bracketing-foundation-panel，explored the loading characteristics of the key components of the flat uniaxial photovoltaic tracking system and the mechanism of instability deformation in an extreme environment，and provided the targeted optimization design suggestions. The results show that，under extreme wind load，the maximum stress of purlins in this large-span PV system reaches 544.4 MPa and the maximum displacement of columns reaches 76.3 mm at the maximum tracking angle，resulting in the potential risk of yield damage of local purlins and H-type steel piles；the deformations of superstructure members are related to their locations，and the overall performance shows that they are distributed in a wavy pattern along the long axis of the main girder，the mid-span position of the two columns also has a large displacement. The maximum deformation under wind load is even 153.2 mm，which is most obvious at the cantilever end of the PV module，and it is proposed to enhance the strength of the local components or change the local structural characteristics to enhance the overall stability of the large-span flat uniaxial tracking PV system. © 2024 Science Press. All rights reserved.
Keyword ：
ABAQUS ABAQUS Aerodynamic loads Aerodynamic loads Beams and girders Beams and girders Columns (structural) Columns (structural) Digital elevation model Digital elevation model Hydraulic structures Hydraulic structures Hydroelasticity Hydroelasticity Piles Piles Structural analysis Structural analysis Structural dynamics Structural dynamics Wind stress Wind stress
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wang, Longwei , Li, Ru , Dou, Hongqiang et al. LOADING PERFORMANCES AND OPTIMAL DESIGN OF BRACKET-FOUNDATION OF FLAT UNIAXIAL PHOTOVOLTAIC TRACKERS [J]. | Acta Energiae Solaris Sinica , 2024 , 45 (10) : 345-353 . |
| MLA | Wang, Longwei et al. "LOADING PERFORMANCES AND OPTIMAL DESIGN OF BRACKET-FOUNDATION OF FLAT UNIAXIAL PHOTOVOLTAIC TRACKERS" . | Acta Energiae Solaris Sinica 45 . 10 (2024) : 345-353 . |
| APA | Wang, Longwei , Li, Ru , Dou, Hongqiang , Xie, Senhua . LOADING PERFORMANCES AND OPTIMAL DESIGN OF BRACKET-FOUNDATION OF FLAT UNIAXIAL PHOTOVOLTAIC TRACKERS . | Acta Energiae Solaris Sinica , 2024 , 45 (10) , 345-353 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Recent advances have significantly enhanced dynamic early warning systems for rainfall-induced landslides by integrating rainfall thresholds with susceptibility mapping. However, there is still room for optimizing these models for regional-scale applications. This study introduces a dynamic early warning model in Anxi County, Fujian Province, China-a region prone to rainfall-induced landslides. First, historical landslide data and their controlling factors were analyzed for the study area, and an optimal landslide susceptibility map was produced by integrating an information value model with a logistic regression model. Second, based on the theory of effective rainfall, the regional rainfall threshold model was established according to the indices of daily and hourly rainfall, and the model's accuracy was evaluated. Third, the more effective E-D (daily index) and EE-D (hourly index) models were coupled with the landslide susceptibility map for landslide dynamic early warning. The model's validation results show its significant predictive capabilities, with the hourly model proving more accurate for short-duration rainfall events. This study provides valuable insights for local authorities on dynamic early warning for rainfall-induced landslides and offers guidance for refining dynamic early warning systems in similar regions.
Keyword ：
dynamic early warning model dynamic early warning model Landslide susceptibility Landslide susceptibility rainfall-induced landslide rainfall-induced landslide rainfall threshold rainfall threshold
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Dou, Hongqiang , Chen, Yongda , Sun, Yongxin et al. Regional dynamic early warning model for rainfall-induced landslide in Fujian, China [J]. | GEOMATICS NATURAL HAZARDS & RISK , 2024 , 15 (1) . |
| MLA | Dou, Hongqiang et al. "Regional dynamic early warning model for rainfall-induced landslide in Fujian, China" . | GEOMATICS NATURAL HAZARDS & RISK 15 . 1 (2024) . |
| APA | Dou, Hongqiang , Chen, Yongda , Sun, Yongxin , Guo, Chaoxu . Regional dynamic early warning model for rainfall-induced landslide in Fujian, China . | GEOMATICS NATURAL HAZARDS & RISK , 2024 , 15 (1) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
突发性自然灾害经常对大型工程的建筑与生产设施造成重大损失,而受损设施的维修和重建过程常出现物资供给不足、物资供给效率低以及物资分配公平性等问题.本文以某大型光伏电站为依托,从应急物资节点选址影响因素入手,建立受突发性灾害作用后的应急物资节点选址评价指标系统,采用AHP-CRITIC(analyt-ic hierarchy process-criteria importance through intercriteria correlation)组合赋权法实现应急物资存放点选址评价结果的计算.同时,基于研究区内部路网开展大型光伏场地路口至多物资存储节点的最优路径研究,并采用GIS(geographic information system)技术求解出最短运输路径.结果表明:该大型光伏场地应急物资节点选址评价结果等级为"好"与"较好"的区域主要分布在研究区北部,占总面积的33.38%;基于最短运输路径原则通过综合对比线路总长与重复路线占比,由入口3出发至各应急物资节点的路径为最优路线.研究成果可为类似大型工程的安全运营和应急管理提供技术支持和参考.
Keyword ：
GIS GIS 光伏电站 光伏电站 应急物资 应急物资 最优路线选取 最优路线选取 节点选址 节点选址
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 林爱军 , 李如 , 豆红强 et al. 基于AHP-CRITIC和GIS的大型光伏电站应急物资节点选址与最优路线选取 [J]. | 科技通报 , 2024 , 40 (7) : 38-45 . |
| MLA | 林爱军 et al. "基于AHP-CRITIC和GIS的大型光伏电站应急物资节点选址与最优路线选取" . | 科技通报 40 . 7 (2024) : 38-45 . |
| APA | 林爱军 , 李如 , 豆红强 , 黄思懿 . 基于AHP-CRITIC和GIS的大型光伏电站应急物资节点选址与最优路线选取 . | 科技通报 , 2024 , 40 (7) , 38-45 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
[目的]揭示动水头作用下花岗岩风化土侵蚀演化的动态过程，研究动态水力条件对土体内部侵蚀发展的影响，探明颗粒迁移规律与内部侵蚀机理，为深入研究花岗岩边坡的破坏模式与促滑机理提供理论依据。[方法]设计竖向土柱渗流装置，开展上升水头与正弦水头条件下花岗岩风化土柱的渗流试验，基于渗流土柱顶面与侧面的试验现象，从渗流速度变化、颗粒流失量变化和渗流前后颗粒级配、质量变化等方面，分析动水头作用下花岗岩风化土内部侵蚀的发育特征。[结果](1)花岗岩风化土粒径差异较大，在骨架间存在微小孔隙，渗流冲刷作用使得土颗粒通过土体骨架间的孔隙运移流失。在内部侵蚀过程中，细颗粒流失量相对较多，粗颗粒流失量较少。(2)土体内部侵蚀作用是渐进发展的过程，在土体薄弱区域的结构最先产生变形与破坏。试验中渗流泉眼由土柱边界开始发展到土柱中部区域，渗流通道沿着渗流方向自下而上发育，水力条件短时间内发生显著变化会造成渗流通道快速贯通。(3)土体内部侵蚀作用将随渗流时间推进而趋于稳定，但正弦水头将“激活”土颗粒运动，加剧土体的内部侵蚀作用。加大水头变化幅度或减小水头变化周期，能够加剧土体内部侵蚀作用，导致水流运移速度加快以及颗粒迁移流失量增多。[结论]水力条件变化对土体内部侵蚀作用存在显著影响，正弦水头更能加剧颗粒迁移流失。
Keyword ：
内部侵蚀 内部侵蚀 动水头 动水头 模型试验 模型试验 花岗岩风化土 花岗岩风化土
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 王浩 , 严耿明 , 李传东 et al. 动水头作用下花岗岩风化土的内部侵蚀机理 [J]. | 水土保持通报 , 2024 , 44 (02) : 80-90 . |
| MLA | 王浩 et al. "动水头作用下花岗岩风化土的内部侵蚀机理" . | 水土保持通报 44 . 02 (2024) : 80-90 . |
| APA | 王浩 , 严耿明 , 李传东 , 豆红强 . 动水头作用下花岗岩风化土的内部侵蚀机理 . | 水土保持通报 , 2024 , 44 (02) , 80-90 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
To investigate the influence of tree roots on the triggering mechanism of shallow landslides, this study focused on a typical vegetation-covered cluster landslide in the Wuping area of China. A tree root profile investigation and a double-ring infiltration test were conducted. The undisturbed soil samples were collected for laboratory tests to measure the influence of tree vegetation on soil physical and hydraulic properties. The root reinforcement effect is limited by the depth of root distribution, with over 90% of the roots situated above the slip surface. The presence of roots increases the resistance of the soil to disintegration. The soil disintegration in the 0-80 cm layer was less than 25% after 24 h of water immersion and the soil undergoes complete disintegration at a depth of 180-200 cm within 120 s. Tree roots facilitate the infiltration of soil, and Ks at 0 m was 11.21 times than that at 2 m, and the interface between soils with roots and soils without roots may become a sliding surface. Under extreme rainfall conditions, the root system promotes water infiltration, accelerates the softening and disintegration of the soil on the sliding surface, which adversely affects the stability of landslides.
Keyword ：
disintegration disintegration heavy rainfall heavy rainfall hydraulic property hydraulic property root-soil root-soil Shallow landslide Shallow landslide
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Lin, Yunzhao , Jian, Wenbin , Wu, Yilong et al. Effect of tree roots on heavy rainfall-induced shallow landslides [J]. | GEOMATICS NATURAL HAZARDS & RISK , 2024 , 15 (1) . |
| MLA | Lin, Yunzhao et al. "Effect of tree roots on heavy rainfall-induced shallow landslides" . | GEOMATICS NATURAL HAZARDS & RISK 15 . 1 (2024) . |
| APA | Lin, Yunzhao , Jian, Wenbin , Wu, Yilong , Zhu, Zuteng , Wang, Hao , Dou, Hongqiang et al. Effect of tree roots on heavy rainfall-induced shallow landslides . | GEOMATICS NATURAL HAZARDS & RISK , 2024 , 15 (1) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
当前大型光伏电场逐步向高寒高海拔地区发展，为准确评价高寒高海拔区的冻融侵蚀灾害对大型光伏电站安全运营的影响，依托高寒高海拔区某大型光伏电站工程，通过选取合适的环境因子开展研究区冻融侵蚀强度的初步计算，并耦合人类工程量化指标提出具有针对性与合理性的光伏场地冻融侵蚀强度评价模型，探讨了多环境因子和人类工程条件下的冻融侵蚀强度与其空间分布。结果表明，该光伏场址冻融侵蚀状况总体上属于中度侵蚀，其冻融侵蚀强度分布具有一定的集中性与空间分异性，且其空间分布格局主要受地形、气候和植被因素影响。同时，光伏电站的建设对场地冻融侵蚀强度具有一定的削弱作用，研究成果可为类似大型工程的冻融侵蚀评价提供参考和借鉴。
Keyword ：
光伏电站 光伏电站 冻融侵蚀强度 冻融侵蚀强度 层次分析-优劣解距离组合方法 层次分析-优劣解距离组合方法 环境因子 环境因子 高寒高海拔 高寒高海拔
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 康子军 , 韩放 , 豆红强 et al. 高寒高海拔区大型光伏电站场地冻融侵蚀强度分区评价 [J]. | 自然灾害学报 , 2024 , 33 (04) : 198-210 . |
| MLA | 康子军 et al. "高寒高海拔区大型光伏电站场地冻融侵蚀强度分区评价" . | 自然灾害学报 33 . 04 (2024) : 198-210 . |
| APA | 康子军 , 韩放 , 豆红强 , 黄思懿 . 高寒高海拔区大型光伏电站场地冻融侵蚀强度分区评价 . | 自然灾害学报 , 2024 , 33 (04) , 198-210 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Export
| Results： |
Selected to |
| Format： |
