Drainage channels with step-pool system are widely used to control debris flow. The blocking of debris flow often gives rise to local damage at the steps and ba?es. Hence, the estimation of impact force of debris flow is crucial for designing step-pools channel. Existing empirical models for impact pressure prediction cannot consider the influence of baffle shape. In this work, a three-dimensional smoothed particle hydrodynamics (SPH) study on the impact behaviour of debris flows in step-pool systems is presented, where debris material is modelled using the regularizedBingham model. The SPH method is first checked using the results from two laboratory tests. Then it is used to investigate the influence of bafflee shape and flow density. Numerical results show that the impact pressure at the first ba?e highly depends on the ba?e shape; however, the largest impact pressure usually occurs at subsequent baffles due to the violent impact induced by jet flows. The peak impact pressure at the first ba?e initially grows with increasing flow density; however, it starts to drop as density is beyond a threshold. Based on the numerical results, an empirical relation considering the influence of ba?e shape is proposed for better prediction of debris impact pressure.
", "keywords": ["Civil and Environmental Engineering", "bepress|Engineering", "0211 other engineering and technologies", "02 engineering and technology", "Geotechnical Engineering", "01 natural sciences", "Engineering", "engrXiv|Engineering", "bepress|Engineering|Civil and Environmental Engineering", "engrXiv|Engineering|Civil and Environmental Engineering|Geotechnical Engineering", "13. Climate action", "engrXiv|Engineering|Civil and Environmental Engineering", "bepress|Engineering|Civil and Environmental Engineering|Geotechnical Engineering", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://link.springer.com/content/pdf/10.1007/s10346-020-01410-w.pdf"}, {"href": "https://doi.org/10.1007/s10346-020-01410-w"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Landslides", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10346-020-01410-w", "name": "item", "description": "10.1007/s10346-020-01410-w", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10346-020-01410-w"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-05-06T00:00:00Z"}}, {"id": "10.1016/j.atmosres.2020.105264", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:15:22Z", "type": "Journal Article", "created": "2020-09-15", "title": "Destinations frequently impacted by dust storms originating from southwest Iran", "description": "Deserts can be considered as one of the main sources of dust emissions as they are highlyvulnerable to wind erosion, i.e. The lack of vegetative cover, as well as low soil wetness,contribute to the release of particles by wind erosion. The present study examines theseasonal variation in sand and dust storms (SDSs) originating from war-impacted semi-aridbare lands affected by chemical warfare located in southwest Iran for the period of 2007-2018. It employs a synthesis of satellite observations and Hybrid Single-Particle LagrangianIntegrated Trajectory (HYSPLIT) model trajectories. A regression analysis betweenannual/seasonal absorbing aerosol index distribution and selected parameters indicated strongcorrelation with surface skin temperature, topsoil layer wetness, and 10-m wind speed.During both cold and warm periods, Kuwait and the Persian Gulf were highly vulnerable toepisodic dust incursions as they were identified in the maximum impact zone (frequency of100%). The Persian Gulf was affected by about 12% of the total air masses during the warmperiod, which increased to 74% during the cold period. Regarding the vulnerability to thehigh wind of war-impacted regions presumably contaminated with potentially toxic elements(PTEs) and toxic compounds, the particles of contaminated dust may have been continuouslytransported over by the strong winds, not only the surrounding region but also long distancesincluding agricultural land and marine environment. The study area would possibly pose adanger to the environment and human health; therefore, a detailed site characterization toinvestigate the degree of contamination with PTEs and toxic compounds is warranted.
", "keywords": ["Civil and Environmental Engineering", "bepress|Engineering|Civil and Environmental Engineering|Environmental Engineering", "engrXiv|Engineering|Civil and Environmental Engineering|Environmental Engineering", "Environmental Engineering", "bepress|Engineering", "15. Life on land", "01 natural sciences", "Engineering", "engrXiv|Engineering", "bepress|Engineering|Civil and Environmental Engineering", "13. Climate action", "engrXiv|Engineering|Civil and Environmental Engineering", "TD", "0105 earth and related environmental sciences"]}, "links": [{"href": "http://wrap.warwick.ac.uk/149216/1/WRAP-Destinations-frequently-impacted-dust-storms-originating-2021.pdf"}, {"href": "https://doi.org/10.1016/j.atmosres.2020.105264"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Atmospheric%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.atmosres.2020.105264", "name": "item", "description": "10.1016/j.atmosres.2020.105264", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.atmosres.2020.105264"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-01-01T00:00:00Z"}}, {"id": "10.1016/j.compgeo.2020.103486", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:15:28Z", "type": "Journal Article", "created": "2021-03-11", "title": "Extension of a basic hypoplastic model for overconsolidated clays", "description": "This paper presents a new rate-dependent hypoplastic constitutive model for overconsolidated clays. The model is developed based on a basic hypoplastic model proposed recently for sand. New density and stiffness factors are introduced to account for history dependence. The Matsuoka-Nakai failure surface is incorporated for the limit stress criterion. With six constitutive parameters, the model is capable of predicting the hardening/softening, shear dilation/contraction, and asymptotic state for overconsolidated clays. Comparison between numerical predictions and experimental results shows this model can properly describe the main features of both reconstituted and undisturbed clays with different overconsolidation ratios.
", "keywords": ["Civil and Environmental Engineering", "Engineering", "engrXiv|Engineering", "bepress|Engineering|Civil and Environmental Engineering", "bepress|Engineering", "engrXiv|Engineering|Civil and Environmental Engineering|Geotechnical Engineering", "engrXiv|Engineering|Civil and Environmental Engineering", "0211 other engineering and technologies", "02 engineering and technology", "Geotechnical Engineering", "bepress|Engineering|Civil and Environmental Engineering|Geotechnical Engineering", "01 natural sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.compgeo.2020.103486"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Computers%20and%20Geotechnics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.compgeo.2020.103486", "name": "item", "description": "10.1016/j.compgeo.2020.103486", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.compgeo.2020.103486"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-07-01T00:00:00Z"}}, {"id": "10.1016/j.compgeo.2019.103200", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:15:28Z", "type": "Journal Article", "created": "2019-08-18", "title": "Non-orthogonal elastoplastic constitutive model with the critical state for clay", "description": "A non-orthogonal elastoplastic model for clay is proposed by combining the non-orthogonal plastic flow rule with the critical state concept, and the model framework is presented from the perspective of the magnitude and direction of the plastic strain increment. The magnitude is obtained based on the improved elliptical yield function and the plastic volumetric strain dependent hardening parameter. The direction is determined by ap-plying the non-orthogonal plastic flow rule with the Riemann-Liouville fractional derivative to the yield function without the necessity of additional plastic potential function. The presented approach gives rise to a simple model for soil with five parameters. All parameters have clear physical meaning and can be easily identified by triaxial tests. The model performance is shown by analyzing the evolution process of the yield surface, the hardening rule and the plastic flow direction. The capability of the proposed model to capture the mechanical behaviours of clay with different stiffness is also confirmed by predicting test results from the literature.
", "keywords": ["Civil and Environmental Engineering", "bepress|Engineering", "0211 other engineering and technologies", "Aerospace Engineering", "bepress|Engineering|Aerospace Engineering", "02 engineering and technology", "Geotechnical Engineering", "01 natural sciences", "engrXiv|Engineering|Aerospace Engineering", "Engineering", "engrXiv|Engineering", "bepress|Engineering|Civil and Environmental Engineering", "engrXiv|Engineering|Civil and Environmental Engineering|Geotechnical Engineering", "engrXiv|Engineering|Civil and Environmental Engineering", "bepress|Engineering|Civil and Environmental Engineering|Geotechnical Engineering", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.compgeo.2019.103200"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Computers%20and%20Geotechnics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.compgeo.2019.103200", "name": "item", "description": "10.1016/j.compgeo.2019.103200", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.compgeo.2019.103200"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-12-01T00:00:00Z"}}, {"id": "10.1016/j.compgeo.2020.103856", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:15:28Z", "type": "Journal Article", "created": "2021-03-11", "title": "GPU-accelerated smoothed particle finite element method for large deformation analysis in geomechanics", "description": "Particle finite element method (PFEM) is an effective numerical tool for solving large-deformation problems in geomechanics. By incorporating the node integration technique with strain smoothing into the PFEM, we proposed the smoothed particle ?nite element method (SPFEM). This paper extends the SPFEM to three-dimensional cases and presents a SPFEM executed on graphics processing units (GPUs) to boost the computational efficiency. The detailed parallel computing strategy on GPU is introduced. New computation formulations related to the strain smoothing technique are proposed to save memory space in the GPU parallel computing. Several benchmark problems are solved to validate the proposed approach and to evaluate the GPU acceleration performance. Numerical examples show that with the new formulations not only the memory space can be saved but also the computational efficiency is improved. The computational cost is reduced by 70% for the double-precision GPU parallel computing with the new formulations.
", "keywords": ["Civil and Environmental Engineering", "bepress|Engineering", "0211 other engineering and technologies", "Computational Engineering", "02 engineering and technology", "Geotechnical Engineering", "Engineering", "engrXiv|Engineering", "0203 mechanical engineering", "bepress|Engineering|Computational Engineering", "bepress|Engineering|Civil and Environmental Engineering", "engrXiv|Engineering|Civil and Environmental Engineering|Geotechnical Engineering", "engrXiv|Engineering|Computational Engineering", "engrXiv|Engineering|Civil and Environmental Engineering", "bepress|Engineering|Civil and Environmental Engineering|Geotechnical Engineering"]}, "links": [{"href": "https://doi.org/10.1016/j.compgeo.2020.103856"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Computers%20and%20Geotechnics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.compgeo.2020.103856", "name": "item", "description": "10.1016/j.compgeo.2020.103856", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.compgeo.2020.103856"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-01-01T00:00:00Z"}}, {"id": "10.1016/j.powtec.2020.09.046", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:16:02Z", "type": "Journal Article", "created": "2021-03-11", "title": "A surface mesh represented discrete element method (SMR-DEM) for particles of arbitrary shape", "description": "A surface mesh represented discrete element method (SMR-DEM) for granular systems with arbitrarily shaped particles is presented. The particle surfaces are approximated using contact nodes obtained from surface mesh. A hybrid contact method which combines the benefits of the sphere-to-sphere and shpere-to-surface approaches is proposed for contact detection and force computation. The simple formulation and implementation render SMR-DEM suitable for threedimensional simulations. Furthermore, GPU parallelization is employed to achieve higher efficiency. Several numerical examples are presented to show the performance of SMR-DEM. It is found that on the particle level the method is accurate and convergent, while on the system level SMR-DEM can effiectively model particle assemblies of various regular and complex irregular shapes.
", "keywords": ["Engineering", "engrXiv|Engineering", "0203 mechanical engineering", "bepress|Engineering", "bepress|Engineering|Computational Engineering", "Engineering Science and Materials", "engrXiv|Engineering|Computational Engineering", "0211 other engineering and technologies", "Computational Engineering", "engrXiv|Engineering|Engineering Science and Materials", "02 engineering and technology", "bepress|Engineering|Engineering Science and Materials"]}, "links": [{"href": "https://doi.org/10.1016/j.powtec.2020.09.046"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Powder%20Technology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.powtec.2020.09.046", "name": "item", "description": "10.1016/j.powtec.2020.09.046", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.powtec.2020.09.046"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-01-01T00:00:00Z"}}, {"id": "10.1016/j.renene.2021.02.003", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:16:03Z", "type": "Journal Article", "created": "2020-11-05", "title": "Virtual fatigue diagnostics of wake-affected wind turbine via Gaussian Process Regression", "description": "We propose a data-driven model to predict the short-term fatigue Damage Equivalent Loads (DEL) on a wake-affected wind turbine based on wind field inflow sensors and/or loads sensors deployed on an adjacent up-wind wind turbine. Gaussian Process Regression (GPR) with Bayesian hyperparameters calibration is proposed to obtain a surrogate from input random variables to output DELs in the blades and towers of the up-wind and wake-affected wind turbines. A sensitivity analysis based on the hyperparameters of the GPR and Kullback-Leibler divergence is conducted to assess the effect of different input on the obtained DELs. We provide qualitative recommendations for a minimal set of necessary and sufficient input random variables to minimize the error in the DEL predictions on the wake-affected wind turbine. Extensive simulations are performed comprising different random variables, including wind speed, turbulence intensity, shear exponent and inflow horizontal skewness. Furthermore, we include random variables related to the blades lift and drag coefficients with direct impact on the rotor aerodynamic induction, which governs the evolution and transport of the meandering wake. In addition, different spacing between the wind turbines and W\u00f6hler exponents for calculation of DELs are considered. The maximum prediction normalized mean squared error, obtained in the tower base DELs in the fore-aft direction of the wake affected wind turbine, is less than 4%. In the case of the blade root DELs, the overall prediction error is less than 1%. The proposed scheme promotes utilization of sparse structural monitoring (loads) measurements for improving diagnostics on wake-affected turbines.
", "keywords": ["bepress|Physical Sciences and Mathematics|Physics|Engineering Physics", "engrXiv|Engineering|Risk Analysis", "engrXiv|Engineering|Other Engineering", "bepress|Engineering", "engrXiv|Engineering|Mechanical Engineering|Fluid Mechanics", "bepress|Engineering|Mechanical Engineering", "engrXiv|Engineering|Mechanical Engineering", "bepress|Engineering|Mechanical Engineering|Applied Mechanics", "Gaussian Process Regression", "02 engineering and technology", "7. Clean energy", "Virtual sensing", "wind turbine", "bepress|Engineering|Computational Engineering", "engrXiv|Engineering|Civil and Environmental Engineering", "0202 electrical engineering", " electronic engineering", " information engineering", "uncertainty", "Fatigue", "wake", "engrXiv|Engineering|Civil and Environmental Engineering|Structural Engineering", "Uncertainty", "engrXiv|Engineering|Mechanical Engineering|Applied Mechanics", "Bayesian Calibration", "engrXiv|Engineering|Engineering Physics", "bepress|Engineering|Risk Analysis", "engrXiv|Engineering", "bepress|Engineering|Civil and Environmental Engineering", "engrXiv|Engineering|Computational Engineering", "Wake", "bepress|Engineering|Aerospace Engineering|Aerodynamics and Fluid Mechanics", "bepress|Engineering|Civil and Environmental Engineering|Structural Engineering", "fatigue", "bepress|Engineering|Other Engineering", "Sensitivity analysis", "Wind turbine", "Bayesian Gaussian process regression"]}, "links": [{"href": "https://doi.org/10.1016/j.renene.2021.02.003"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Renewable%20Energy", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.renene.2021.02.003", "name": "item", "description": "10.1016/j.renene.2021.02.003", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.renene.2021.02.003"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-11-05T00:00:00Z"}}, {"id": "10.1016/j.yofte.2020.102239", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:16:28Z", "type": "Journal Article", "created": "2021-05-27", "title": "Distributed optical fiber pressure sensors", "description": "The measurement of pressure by using distributed optical fiber sensors has represented a challenge for many years. While single-point optical fiber pressure sensors have reached a solid level of technology maturity, showing to be very good candidates in replacing conventional electrical sensors due to their numerous advantages, distributed sensors are still a matter of an intense research activity aimed at determining the most proper and robust pressure-sensitivity enhancement mechanism. This paper reviews early and recent works on distributed pressure sensors, classifying the sensors according to the sensing mechanism. For each type of mechanism, the issues and potentials are analyzed and discussed.The measurement of pressure by using distributed optical fiber sensors has represented a challenge for many years. While single-point optical fiber pressure sensors have reached a solid level of technology maturity, showing to be very good candidates in replacing conventional electrical sensors due to their numerous advantages, distributed sensors are still a matter of an intense research activity aimed at determining the most proper and robust pressure-sensitivity enhancement mechanism. This paper reviews early and recent works on distributed pressure sensors, classifying the sensors according to the sensing mechanism. For each type of mechanism, the issues and potentials are analyzed and discussed.
", "keywords": ["engrXiv|Engineering|Other Engineering", "Engineering", "engrXiv|Engineering", "Optical fiber sensor", "bepress|Engineering", "0103 physical sciences", "Distributed optical fiber pressure sensor", "bepress|Engineering|Other Engineering", "Distributed optical fiber pressure sensor; Distributed optical fiber sensor; Optical fiber sensor; Pressure measurement", "Pressure measurement", "Other Engineering", "01 natural sciences", "Distributed optical fiber sensor"]}, "links": [{"href": "https://doi.org/10.1016/j.yofte.2020.102239"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Optical%20Fiber%20Technology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.yofte.2020.102239", "name": "item", "description": "10.1016/j.yofte.2020.102239", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.yofte.2020.102239"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-09-01T00:00:00Z"}}, {"id": "10.1680/jgeot.20.p.184", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:18:32Z", "type": "Journal Article", "created": "2021-04-15", "title": "On mechanical behaviour of clastic soils: numerical simulations and constitutive modelling", "description": "Clastic soil is ubiquitous in practice but still poses challenges for testing and modelling. Conventional laboratory tests with small sizes are not suitable for the large grain size, while large-scale tests and field tests are often too costly and time-consuming. In this paper, the mechanical behaviour of clastic soil is described by a hypoplastic constitutive model based on numerical simulations considering both the soil matrix and breccia. The numerical simulations indicate that the breccia content, gradation, and overconsolidation ratio have a significant influence on the strength, deformation, and failure pattern of the clastic soil. The coarse particles are found to change the stress path developed in the soil matrix and consequently influence the critical state of the soil matrix. Moreover, the coarse particle distribution based on computed tomography scan seems to have a larger impact than the breccia content for the failure pattern of the clastic soils.
", "keywords": ["Civil and Environmental Engineering", "engrXiv|Engineering|Civil and Environmental Engineering|Civil Engineering", "Engineering", "engrXiv|Engineering", "bepress|Engineering|Civil and Environmental Engineering", "bepress|Engineering", "engrXiv|Engineering|Civil and Environmental Engineering", "0211 other engineering and technologies", "02 engineering and technology", "bepress|Engineering|Civil and Environmental Engineering|Civil Engineering", "Civil Engineering"]}, "links": [{"href": "https://www.icevirtuallibrary.com/doi/pdf/10.1680/jgeot.20.P.184"}, {"href": "https://doi.org/10.1680/jgeot.20.p.184"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/G%C3%A9otechnique", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1680/jgeot.20.p.184", "name": "item", "description": "10.1680/jgeot.20.p.184", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1680/jgeot.20.p.184"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-04-15T00:00:00Z"}}, {"id": "10.3390/su13073732", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:32Z", "type": "Journal Article", "created": "2021-03-26", "title": "The Optimisation Analysis of Sand-Clay Mixtures Stabilised with Xanthan Gum Biopolymers", "description": "Sand\uffe2\uff80\uff93clay mixtures can be encountered in both natural soils (e.g., residual soils, clay deposits and clinosols) and artificial fills. The method of utilising biopolymers in ground improvement for sand\uffe2\uff80\uff93clay mixtures has emerged recently. However, a full understanding of the strengthening effect of biopolymer-treated sand\uffe2\uff80\uff93clay mixtures has not yet been achieved due to a limited number of relevant studies. In this study, xanthan gum (XG), as one of the eco-friendly biopolymers, was used to treat reconstituted sand\uffe2\uff80\uff93clay mixtures that had various compositions in related to clay (or sand) content and clay type (kaolin and bentonite). A series of laboratory unconfined compression strength (UCS) tests were conducted to probe the performances of XG-treated sand\uffe2\uff80\uff93clay mixtures from two aspects, i.e., optimum treatment conditions (e.g., XG content and initial moisture content) to achieve the maximum strengthening effect and strengthening efficiency for the sand\uffe2\uff80\uff93clay mixtures with different compositions. The experimental results indicated that the optimum initial moisture content decreased as the sand content increased. The optimum XG content, which also decreased with the increasing sand content, remained approximately 3.75% for all sand\uffe2\uff80\uff93kaolin mixtures and 5.75% for all sand\uffe2\uff80\uff93bentonite mixtures if calculated based on clay fraction. While untreated sand\uffe2\uff80\uff93kaolin mixtures and sand\uffe2\uff80\uff93bentonite mixtures had comparable UCS values, XG-treated sand\uffe2\uff80\uff93kaolin mixtures seemed to have better improved mechanical strength due to higher ionic (or hydrogen) bonds with XG and low-swelling properties compared with bentonite. The deformation modulus of XG-treated sand\uffe2\uff80\uff93clay mixtures were positively related with UCS. The variation in UCS and stiffness for each treatment condition increased as the sand content was elevated for both sand-kaolin and sand-bentonite mixtures. An increment in the proportion of the heterogeneous composite formed by irregular sand particles conglomerated with the XG\uffe2\uff80\uff93clay matrix in total soil might be responsible for this phenomenon.
", "keywords": ["Civil and Environmental Engineering", "TP", "initial moisture content", "engrXiv|Engineering|Civil and Environmental Engineering|Civil Engineering", "bepress|Engineering", "bentonite", "xanthan gum", "QK", "TN", "0211 other engineering and technologies", "sand-clay mixture", "02 engineering and technology", "uniaxial compressive strength tests", "bepress|Engineering|Civil and Environmental Engineering|Civil Engineering", "Civil Engineering", "6. Clean water", "Engineering", "engrXiv|Engineering", "TA", "bepress|Engineering|Civil and Environmental Engineering", "engrXiv|Engineering|Civil and Environmental Engineering", "QE", "kaolin", "biopolymer content"], "contacts": [{"organization": "Geng, Xueyu, Ma, Lei, Hao, Gang-Lai, Ni, Jing, Chen, Jia-Qi,", "roles": ["creator"]}]}, "links": [{"href": "http://wrap.warwick.ac.uk/150469/7/WRAP-Optimisation-analysis-sand-clay-mixtures-stabilised-xanthan-gum-biopolymers-2021.pdf"}, {"href": "http://www.mdpi.com/2071-1050/13/7/3732/pdf"}, {"href": "https://www.mdpi.com/2071-1050/13/7/3732/pdf"}, {"href": "https://doi.org/10.3390/su13073732"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Sustainability", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/su13073732", "name": "item", "description": "10.3390/su13073732", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/su13073732"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-03-26T00:00:00Z"}}, {"id": "10.31224/osf.io/r8xau", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:12Z", "type": "Journal Article", "created": "2021-09-02", "title": "Multi-Axial Hybrid Fire Testing based on Dynamic Relaxation", "description": "This technical note presents the experimental validation of a hybrid fire testing coordination algorithm recently developed by some of the authors. For the first time, the algorithm is applied to solve the static response of a multiple-degrees-of-freedom hybrid model.
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