Geotextiles and Geomembranes最新文献_第3页

Erosion control performance of natural geotextiles for slope stabilization 天然土工织物对边坡稳定的侵蚀控制性能

IF 6.2 1区工程技术 Q1 ENGINEERING, GEOLOGICAL

Geotextiles and Geomembranes

Pub Date : 2025-09-26 DOI: 10.1016/j.geotexmem.2025.09.004

Lihua Li , Shuangdong Liu , Xin Gu , Gang Liu , Xin Zhang , Haowen Xiong

Two innovative geotextile-based slope stabilization and erosion control approaches were developed in this study, including vegetation-geotextile composites and geotextiles treated with alkali-activated binder (AAB). Experimental investigations were conducted to evaluate the effectiveness of different slope protection measures in delaying runoff onset, lowering erosion rates, and improving slope stability under varied rainfall intensities and slope gradients. It was found that bare slopes deteriorated rapidly under high-intensity rainfall, progressing from splash to severe gully erosion. Vegetation-geotextile system (tall fescue with coconut fiber blankets) considerably delayed runoff, decreased erosion, and improved soil structure and water retention. By contrast, AAB-treated geotextiles displayed superior mechanical stability and erosion resistance due to densified fiber networks and optimized pore structures compared to untreated bare slope. Furthermore, AAB-treated geotextiles delivered the highest erosion resistance, while vegetation-geotextile composites provided significant ecological benefits in terms of soil temperature regulation and organic matter release. As a result, integration of AAB treatment with vegetation-geotextile systems can serve as a long-term slope stabilization solution that simultaneously addresses engineering requirements and environmental objectives under climate change scenarios.

本研究开发了两种创新的基于土工布的边坡稳定和侵蚀控制方法，包括植被-土工布复合材料和碱活性粘合剂（AAB）处理的土工布。在不同的降雨强度和坡度条件下，采用不同的护坡措施来延缓径流的发生、降低侵蚀速率和改善边坡稳定性。研究发现，在强降雨条件下，光秃秃的山坡迅速恶化，从飞溅到严重的沟蚀。植被-土工布系统（高羊茅与椰子纤维毯）大大延迟径流，减少侵蚀，改善土壤结构和保水能力。相比之下，与未经处理的裸坡相比，经aab处理的土工布由于致密的纤维网络和优化的孔隙结构而表现出更好的机械稳定性和抗侵蚀性。此外，aab处理的土工布具有最高的抗侵蚀能力，而植被-土工布复合材料在土壤温度调节和有机质释放方面具有显著的生态效益。因此，将AAB处理与植被土工布系统相结合，可以作为长期的边坡稳定解决方案，同时满足气候变化情景下的工程要求和环境目标。

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引用次数: 0

Influence of wicking geotextile installation on moisture migration in silt under rainfall infiltration 吸湿土工布对降雨入渗条件下淤泥中水分迁移的影响

IF 6.2 1区工程技术 Q1 ENGINEERING, GEOLOGICAL

Geotextiles and Geomembranes

Pub Date : 2025-09-16 DOI: 10.1016/j.geotexmem.2025.09.002

Yipeng Guo , Dahao Zou , Min Hu , Xiong Zhang , Fang Xu , Yongjie Zhang , Jiejing Chen

Silt is widely used in subgrade construction in the middle and lower reaches of the Yellow River in China due to limited availability of high-quality fill. However, its high moisture sensitivity and low strength often lead to pumping, settlement, and deformation. This study investigates the hydraulic performance of a wicking geotextile in silt under simulated rainfall infiltration using one-dimensional soil column experiments. Three installation configurations were evaluated: (i) a control sample (CS) without geotextile, (ii) an embedded sample (ES) with the geotextile fully installed as a capillary barrier, and (iii) a surface-exposed sample (SES) with the geotextile extended to the atmosphere to improve drainage. Suction-volumetric moisture content relationships were monitored at multiple depths, and both water storage capacity and drainage mechanisms were assessed. Results indicate that ES and SES reached stabilization at similar suction thresholds, however, the SES more effectively delayed saturation and facilitated moisture migration by evaporation. Surface exposure induced a relative humidity gradient, generating suction and improving drainage, while a siphon effect redistributed water approximately 25 cm below and 15 cm above the geotextile. These findings confirm that the wicking geotextile can act as a capillary barrier and drainage medium, and provide guidance for silty subgrade design.

淤泥在黄河中下游路基建设中被广泛应用，主要是由于高质量的填方有限。然而，其高湿敏性和低强度往往导致泵送，沉降和变形。采用一维土柱试验，研究了吸芯土工布在模拟降雨入渗条件下在淤泥中的水力性能。评估了三种安装配置：(i)没有土工布的对照样品（CS），（ii）完全安装土工布作为毛细管屏障的嵌入样品（ES），以及（iii）表面暴露样品（SES），土工布延伸到大气中以改善排水。在多个深度监测了吸力-体积含水率关系，并评估了储水能力和排水机制。结果表明，ES和SES在相似的吸力阈值下达到稳定，但SES更有效地延迟饱和并促进水分通过蒸发迁移。表面暴露引起相对湿度梯度，产生吸力并改善排水，而虹吸效应将水重新分配到土工布下方约25厘米和上方约15厘米处。这些研究结果证实了吸湿土工布可以作为毛细管屏障和排水介质，为粉质路基设计提供指导。

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引用次数: 0

Predictive modeling of lateral pressure in geotextile flexible casings for karst pile construction 岩溶桩施工中土工织物柔性套侧压力预测建模

IF 6.2 1区工程技术 Q1 ENGINEERING, GEOLOGICAL

Geotextiles and Geomembranes

Pub Date : 2025-09-16 DOI: 10.1016/j.geotexmem.2025.08.011

Tengyun Xue , Liang Xiao , Pengpeng Ni , Runxing Rao , Chaofeng Zeng , Guoxiong Mei

In modern geotechnical engineering, geotextile-integrated flexible casings have gained prominence over conventional steel counterparts for concrete containment in karst pile construction, primarily due to their economic advantages and operational simplicity. However, the dynamic behavior of casing lateral pressure development during concrete placement—a fundamental design consideration—has not been thoroughly elucidated, creating uncertainties in engineering practice. This study systematically investigates three key operational parameters through laboratory experiments: casing material characteristics, permeability performance, and concrete placement methods. The research yields two critical advancements: (1) Casing material and discontinuous casting significantly govern the maximum lateral pressure, whereas permeability predominantly regulates post-placement pressure dissipation patterns. Engineering specifications should therefore emphasize the integration of low-strain geotextiles with permeability characteristics and discontinuous placement methods. (2) An innovative predictive model has been developed, synthesizing material properties, permeability performance, and concrete placement methods. Field tests in a karst region show that the proposed model reduces lateral pressure estimates by 42 % compared to traditional hydrostatic designs while maintaining structural safety. These findings establish essential guidelines for performance-oriented design of flexible geotextile containment systems in geologically complex environments.

在现代岩土工程中，土工织物集成柔性套管由于其经济优势和操作简单，在岩溶桩施工中比传统的钢筋混凝土围护结构得到了突出的应用。然而，在混凝土浇筑过程中套管侧压力发展的动态行为——一个基本的设计考虑——并没有完全阐明，这在工程实践中造成了不确定性。本研究通过室内实验系统研究了套管材料特性、渗透性能和混凝土浇筑方法三个关键操作参数。研究取得了两项重要进展：(1)套管材料和不连续浇铸对最大侧向压力有显著影响，而渗透率主要调节放置后压力消散模式。因此，工程规范应强调具有渗透性特性的低应变土工布与不连续放置方法的结合。(2)建立了一种创新的预测模型，综合了材料性能、渗透性能和混凝土浇筑方法。在喀斯特地区的现场试验表明，与传统的静压设计相比，该模型在保持结构安全的同时，侧压力估算值降低了42%。这些发现为复杂地质环境中柔性土工布围护系统的性能导向设计建立了重要的指导方针。

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引用次数: 0

Sorption and water distribution performances of a geosynthetic sheet used in naturally contaminated soils management 土工合成片材在自然污染土壤治理中的吸附和配水性能

IF 6.2 1区工程技术 Q1 ENGINEERING, GEOLOGICAL

Geotextiles and Geomembranes

Pub Date : 2025-09-06 DOI: 10.1016/j.geotexmem.2025.09.001

Yu Zhang , Yosuke Kinoshita , Tomohiro Kato , Atsushi Takai , Takeshi Katsumi

A novel hydrotalcite-coated geosynthetic sorption sheet shows potential for managing geogenic contamination in excavated soils and rocks. Employed in an attenuation layer, it retains contaminants in leachate before infiltration into surrounding soil. This study evaluates the arsenic (As) sorption efficiency and water distribution performance of this geosynthetic material to assess its field applicability. Batch experiments were conducted across a pH range of 3–9, temperatures of 5–40 °C, and with co-existing ions (HCO₃⁻, SO₄²⁻ at 0–500 mg/L). Results demonstrated effective removal of both As(III) and As(V), with higher efficiency for As(V). While pH, co-existing ions, and temperature had minimal effect on As(V) removal, they significantly influenced As(III) removal. Specifically, As(III) sorption efficiency decreased by 15 % as pH decreased from 9 to 3. The presence of HCO₃⁻ and SO₄²⁻ reduced As(III) removal due to competition for sorption sites. Removal efficiency slightly improved at 40 °C due to the endothermic nature of the sorption process. Soil tank experiments indicated that soil particle size was the dominant factor controlling water retention and drainage patterns. Coarse sand promoted concentrated flow, while finer sands enhanced retention and dispersion. The geosynthetic sorption sheet showed only a limited hydraulic influence under the tested conditions.

一种新型的水滑石包覆的土工合成吸附片显示了处理开挖土壤和岩石中的地质污染的潜力。在衰减层中使用，它在渗透到周围土壤之前保留渗滤液中的污染物。本研究对该土工合成材料的砷吸附效率和配水性能进行了评价，以评价其现场适用性。批量实验在pH为3-9，温度为5-40°C，并与共存离子（0-500 mg/L的HCO3−，SO42−）进行。结果表明，As（III）和As(V)都能有效去除，其中As(V)的去除效率更高。pH、共存离子和温度对As(V)的去除影响最小，但对As（III）的去除影响显著。特别是，当pH值从9降低到3时，As（III）的吸附效率降低了15%。由于竞争吸附位点，HCO3−和SO42−的存在降低了As（III）的去除。由于吸附过程的吸热性质，在40°C时去除效率略有提高。土壤槽试验表明，土壤粒径是控制土壤保水和排水方式的主要因素。粗砂促进集中流动，细砂增强滞留和分散。在测试条件下，土工合成吸附片仅显示有限的水力影响。

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引用次数: 0

A simple 3D orthotropic model for the tensile response of geogrids: In-isolation and soil–geogrid interaction applications 土工格栅拉伸响应的简单三维正交各向异性模型：隔离和土-土工格栅相互作用的应用

IF 6.2 1区工程技术 Q1 ENGINEERING, GEOLOGICAL

Geotextiles and Geomembranes

Pub Date : 2025-08-29 DOI: 10.1016/j.geotexmem.2025.07.010

Lucas Paiva , Margarida Pinho-Lopes , Robertt Valente , António Miguel Paula

The short-term tensile response is one of the key aspects in designing geogrid-reinforced soil structures. In this paper a simple data-driven 3D orthotropic model for the short-term tensile response is proposed. The Hill48 yield model is chosen to represent the orthotropic behaviour of the geogrid, and a procedure to obtain the necessary parameters, from simple tensile test data, is presented. The model is then implemented in ABAQUS, and validated against a realistic problem where the geogrid is embedded in soil. The influence of the orthotropy (against isotropy) on both the reinforcement and the overall soil–geogrid structure is evaluated. The results show that the orthotropic model can accurately predict the tensile response of the geogrid in different directions, with the orthotropy having a significant influence on the reinforcement and the overall structural response, especially in highly orthotropic materials. The study further examined stress redistribution capabilities in geogrids with notches, revealing enhanced stabilization performance using the orthotropic model. Parametric tests indicated that traditional isotropic assumptions might underpredict or overpredict reinforcement performance, emphasizing the advantages for accurate orthotropic characterization. The proposed 3D framework provides a robust, straightforward method for evaluating and optimizing geogrid designs, enabling better prediction of reinforced soil behaviour in geotechnical applications.

短期拉伸响应是土工格栅加筋土结构设计的关键问题之一。本文提出了一种简单的数据驱动的三维正交各向异性短期拉伸响应模型。选择Hill48屈服模型来表示土工格栅的正交各向异性行为，并给出了从简单拉伸试验数据中获得必要参数的过程。然后在ABAQUS中实现该模型，并针对土工格栅嵌入土中的实际问题进行验证。评价了正交异性（相对于各向同性）对加固和整体土工格栅结构的影响。结果表明：正交各向异性模型能准确预测土工格栅在不同方向上的拉伸响应，且正交各向异性对配筋和整体结构响应有显著影响，特别是在高正交各向异性材料中。该研究进一步研究了带缺口的土工格栅的应力再分布能力，揭示了使用正交各向异性模型增强的稳定性能。参数测试表明，传统的各向同性假设可能会低估或高估钢筋性能，强调准确的正交各向异性表征的优势。提出的3D框架为评估和优化土工格栅设计提供了一种强大、直接的方法，能够更好地预测土工应用中的加筋土行为。

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引用次数: 0

Methods for mitigating effect of apparent clogging in vacuum consolidation and analysis technics – a review 缓解真空固结中明显堵塞影响的方法及分析技术综述

IF 6.2 1区工程技术 Q1 ENGINEERING, GEOLOGICAL

Geotextiles and Geomembranes

Pub Date : 2025-08-28 DOI: 10.1016/j.geotexmem.2025.08.004

Jinchun Chai , Yafei Qiao , Wenqi Ding , Liangjin Li , Takenori Hino

To increase the efficiency and design accuracy of vacuum consolidation of clayey slurries with prefabricated vertical drains (PVDs) or prefabricated horizontal drains (PHDs), methods for mitigating apparent clogging around PVDs/PHDs, and consolidation solutions considering the effect of the apparent clogging are reviewed/analyzed. Methods for mitigating the effect of apparent clogging has been clarified as thermal, physical and chemical ones. For each method, its work mechanism is explained and its effectiveness is evaluated qualitatively/quantitatively. Recently published solutions for a PVD/PHD unit cell consolidation considering mechanical and/or geometrical non-linearities are summarized. Except technics adopted for modelling the non-linearities, other options considered in the solutions are: (i) Darcian or non-Darcian flow; (ii) equal strain or free strain; (iii) considering creep or not; and (iv) time dependent load or constant load. Further, an incremental imaginary time method has been described in certain detail for solving non-linear PVD/PHD unit cell consolidation with time dependent loads. It has been demonstrated that the method is a pragmatic and versatile one.

为了提高预制垂直排水管和预制水平排水管对粘土浆料的真空固结效率和设计精度，本文综述和分析了缓解预制垂直排水管和预制水平排水管周围表观堵塞的方法，以及考虑表观堵塞影响的固结方案。减轻明显堵塞影响的方法已澄清为热、物理和化学方法。对于每种方法，都解释了其工作机制，并对其有效性进行了定性/定量评价。总结了最近发表的考虑力学和/或几何非线性的PVD/PHD单元胞固结解决方案。除了非线性建模所采用的技术外，解决方案中考虑的其他选项有：(i)达西或非达西流动；（ii）等应变或自由应变；（iii）是否考虑蠕变；（四）随时间变化的负荷或恒定负荷。此外，还详细描述了一种增量虚时间方法，用于求解具有时间相关载荷的非线性PVD/PHD单元胞固结。实践证明，该方法实用、通用性强。

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引用次数: 0

Full-scale experiment and numerical studies on vertical impact characteristics of reinforced embankment 加筋路堤竖向冲击特性的全尺寸试验与数值研究

IF 6.2 1区工程技术 Q1 ENGINEERING, GEOLOGICAL

Geotextiles and Geomembranes

Pub Date : 2025-08-28 DOI: 10.1016/j.geotexmem.2025.08.009

Bo Chen , Liang Lu , Zongjian Wang , Shuwen Ma , Katsuhiko Arai

Reinforced embankments offer advantages including reduced settlement, environmental friendliness and substantial protection against rockfall hazards. However, current research primarily focuses on the impact response of the upstream facing of reinforced embankments against rockfalls, while neglecting the influence of vertical rockfall impacts on embankment design and analysis. This study investigates deformation characteristics and load transfer mechanisms of reinforced embankment under vertical rockfall impacts through a full-scale experiment. Furthermore, based on the full-scale experiment, a validated numerical model was developed, enabling a parametric analysis of the effects of reinforcement cross-sectional configurations, rock shapes, impact energy and impact points on embankment performance. The findings indicate that reinforced embankments exhibit excellent impact resistance, exhibiting two distinct deformation patterns upon impact that are primarily influenced by impact point, impact energy and reinforcement cross-sectional configuration. Rockfalls with smaller aspect ratios tend to achieve greater penetration depths while causing limited disturbance to the embankment. When maintaining equivalent aspect ratios, flatter rock geometries generate stronger impact forces and cause more significant damage to the embankment structure. The insights from this study provide a basis for verifying and improving the current impact-resistance design of reinforced embankments, offering significant implications for enhancing the safety and functionality of such structures.

加固路堤的优点包括减少沉降、环境友好和对落石危险的实质性保护。然而，目前的研究主要集中在加筋土路堤上游面对落石的冲击响应，而忽略了垂直落石冲击对路堤设计和分析的影响。通过全尺寸试验，研究了竖向落石冲击下加筋路堤的变形特征及荷载传递机制。此外，在全尺寸试验的基础上，建立了一个经过验证的数值模型，能够对钢筋截面配置、岩石形状、冲击能量和冲击点对路堤性能的影响进行参数化分析。研究结果表明，加筋土路堤具有优异的抗冲击性能，在冲击时表现出两种不同的变形模式，主要受冲击点、冲击能量和钢筋截面结构的影响。较小长径比的落石往往能达到更大的穿透深度，同时对路堤的干扰有限。当保持等长径比时，平坦的岩石几何形状产生更强的冲击力，对路堤结构造成更大的破坏。本研究的见解为验证和改进当前加固路堤的抗冲击设计提供了基础，为提高此类结构的安全性和功能性提供了重要意义。

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引用次数: 0

A settlement calculation method for soft ground subjected to air-boosting vacuum preloading 增压真空预压软土地基沉降计算方法

IF 6.2 1区工程技术 Q1 ENGINEERING, GEOLOGICAL

Geotextiles and Geomembranes

Pub Date : 2025-08-28 DOI: 10.1016/j.geotexmem.2025.08.005

Fang Xu , Wenqian Hao , Qichang Wu , Junfang Yang , Qi Yang

The air-boosting vacuum preloading (AVP) method effectively enhances the treatment performance of soft ground compared to conventional vacuum preloading. The air-boosting mechanism primarily exerts dewatering, de-structuring, and mitigating apparent clogging around drains, among which the dewatering is closely related to variations in pore water pressure within the soil. Through systematic analysis of pore water pressure variations during the preloading process, a computational framework for quantifying settlement increments induced by dewatering effect is established. By integrating the proportional contribution of dewatering to the total air-boosting effects, the settlement amplification mechanism attributable to air-boosting was characterized. These findings, in conjunction with vacuum consolidation theory, culminated in the development of a settlement calculation method for AVP-treated soft ground. The proposed method was validated through its application to two case histories, demonstrating favorable computational efficiency and satisfactory alignments between predicted and measured settlements. It also effectively reflects the evolution of ground settlement under air-boosting. Furthermore, the variations of the soil e-lg(p) compression curve under AVP treatment were investigated, facilitating the identification of an approximate shifted e-lg(p) curve. Finally, the primary factors affecting the settlement of AVP-treated soft ground were clarified. These findings offer valuable insights for the analysis and design of AVP-treated soft ground.

与传统的真空预压相比，增压真空预压法有效地提高了软土地基的处理性能。空气增压机制主要发挥排水、去结构和缓解排水周围明显堵塞的作用，其中排水与土壤孔隙水压力的变化密切相关。通过系统分析预压过程中孔隙水压力的变化，建立了量化脱水沉降增量的计算框架。通过综合降水对总增压效应的比例贡献，表征了增压沉降放大机理。这些发现，结合真空固结理论，最终发展了avp处理软土地基的沉降计算方法。通过对两个历史案例的应用验证了所提出的方法，证明了良好的计算效率和预测与实测沉降之间令人满意的一致性。它也有效地反映了空气助推作用下地面沉降的演变过程。此外，研究了AVP处理下土壤e-lg(p)压缩曲线的变化，有助于识别近似移位的e-lg(p)曲线。最后，明确了影响avp处理软土地基沉降的主要因素。这些发现为avp处理软土地基的分析和设计提供了有价值的见解。

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引用次数: 0

Influence of initial water content and voltage gradient on electroosmotic dewatering of ultra-fine soils using novel electrokinetic geosynthetics 初始含水量和电压梯度对新型电动土工合成材料超细土电渗透脱水的影响

IF 6.2 1区工程技术 Q1 ENGINEERING, GEOLOGICAL

Geotextiles and Geomembranes

Pub Date : 2025-08-26 DOI: 10.1016/j.geotexmem.2025.08.006

Nilan Jayasiri , Andy Fourie , Cristina Vulpe

Electroosmotic (EO) dewatering has gained substantial attention as an alternative method for improving weak soil deposits. One aspect that has not received sufficient attention in this approach is the influence of initial water content and voltage gradient on the EO treatment. This study aimed to provide a comprehensive understanding of the key operational parameters and post-dewatering performance metrics of EO treatment with varying initial water contents and voltage gradients. A number of electrical, hydraulic and soil water retention parameters were monitored during the treatment process, and the material response to the EO treatment was evaluated by assessing various geotechnical and physiochemical parameters. The results indicate that, regardless of the voltage gradients, overall, the EO dewatering led to a reduction of at least one-third of the original water content. The EO treatment resulted in a sevenfold, ninefold and twentyfold relative increase in undrained shear strength for the experiments with the lowest, intermediate and highest initial water contents, respectively, indicating an exponential increase as the initial water content of the slurry increases. The implications of the findings to improve the viability of EO treatment for large-scale applications using electrokinetic geosynthetics are also discussed.

电渗透（EO）脱水作为一种改善软弱土壤沉积物的替代方法受到了广泛的关注。在这种方法中没有得到足够重视的一个方面是初始含水量和电压梯度对EO处理的影响。本研究旨在全面了解不同初始含水量和电压梯度下EO处理的关键操作参数和脱水后性能指标。在处理过程中监测了许多电气、水力和土壤保水参数，并通过评估各种岩土和物理化学参数来评估材料对EO处理的响应。结果表明，无论电压梯度如何，总体而言，EO脱水导致原始含水量至少减少三分之一。在初始含水量最低、中等和最高的试验中，EO处理导致不排水抗剪强度分别相对提高了7倍、9倍和20倍，表明随着浆体初始含水量的增加，不排水抗剪强度呈指数增长。本文还讨论了这些发现对提高电动土工合成材料大规模应用的EO处理可行性的意义。

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引用次数: 0

Field performance of erosion control on Lamtakong dam slopes using geocell and ruzi grass cover: A case study 土工格室与芦子草覆盖对兰竹洞坝坡面侵蚀控制的现场效果研究

IF 6.2 1区工程技术 Q1 ENGINEERING, GEOLOGICAL

Geotextiles and Geomembranes

Pub Date : 2025-08-26 DOI: 10.1016/j.geotexmem.2025.08.010

Nuttawut Thanasisathit , Supphanut Chuenjaidee , Panich Voottipruex , Pornkasem Jongpradist , Patara Kalayasri , Pitthaya Jamsawang

This study investigates the field performance of an integrated erosion control system combining geocell reinforcement and Ruzi grass cover on 30°, 45°, and 60° slopes at Lamtakong Dam, Thailand. Simulated rainfall intensities of 100, 130, and 170 mm/h were applied to assess the effects of geocell coverage patterns and vegetation maturity on runoff and sediment transport. Results show that full geocell coverage (C100) achieved the highest erosion resistance, reducing runoff and sediment by up to 90 % and 98 %, respectively. Partial coverage (C60 and C80) also proved effective, achieving comparable reductions (RRR of 60–75 % and SRR of 65–78 %) while offering cost-saving potential. Ruzi grass alone reduced sediment concentration by up to 75 % after 8 weeks, emphasizing the importance of vegetation maturity. Discontinuous geocell layouts performed similarly to continuous ones at equivalent coverage, indicating that total coverage area, not pattern, governs performance. A multiple regression model was developed to predict sediment reduction based on geocell coverage, Ruzi grass age, slope angle, and rainfall intensity, confirming the dominant influence of geocell coverage and vegetation maturity. The findings support the integrated system as a sustainable and scalable solution for erosion-prone slopes under varying environmental conditions.

本研究调查了泰国Lamtakong大坝30°、45°和60°边坡上结合土工格室加固和Ruzi草覆盖的综合侵蚀控制系统的现场性能。采用100、130和170 mm/h的模拟降雨强度来评估土工格室覆盖模式和植被成熟度对径流输沙的影响。结果表明，全土工格室覆盖（C100）达到最高的抗侵蚀能力，减少径流和泥沙分别高达90%和98%。部分覆盖（C60和C80）也被证明是有效的，在提供节约成本潜力的同时，实现了类似的减少（RRR为60 - 75%，SRR为65 - 78%）。8周后，仅如子草可使沉积物浓度降低75%，强调了植被成熟度的重要性。在相同的覆盖范围下，不连续的土工单元布局的表现与连续的土工单元布局相似，这表明控制性能的是总覆盖面积，而不是模式。建立了基于土工格室盖度、如子草年龄、坡角和降雨强度的多元回归模型预测减沙量，证实了土工格室盖度和植被成熟度的主导影响。研究结果表明，在不同的环境条件下，集成系统是一种可持续的、可扩展的解决方案，适用于易侵蚀的斜坡。

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引用次数: 0