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Journal articles on the topic 'Soil gradation'

Author: Grafiati
Published: 4 June 2025
Last updated: 1 August 2025

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1

Yamusa, Y. B., R. Sa’ari, K. Ahmad, N. Alias, M. Mustaffar, and L. K. Foong. "Monitoring Leachate Migration in Compacted Soil Using Digital Image Technique." Engineering, Technology & Applied Science Research 9, no. 1 (2019): 3685–91. http://dx.doi.org/10.48084/etasr.2407.

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As leachate has been a source of groundwater contamination worldwide, this paper examines the phenomenon of leachate migration on different gradations of compacted laterite soil used as sanitary landfill liners. Three different soil gradations (30%, 40% and 50% with respect to fines content) used in this study were compacted in circular acrylic columns to provide a clear visualization of leachate migration into the soils. Digital image technique was used in capturing photos at successive time intervals to monitor the leachate migration. The captured digital images were fed into Matlab and conv
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2

Basri, Doni Rinaldi, Elsa Eka Putri, Bayu Martanto Adji, and Abdul Hakam. "Influence of Sand Gradation on Volumetric Weigh and Compressive Strength of Pavement Foam Mortar." Civil and Environmental Engineering 20, no. 2 (2024): 654–63. https://doi.org/10.2478/cee-2024-0049.

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Abstract Foam mortar is a substitute for sub-base layers and base layers in road pavement construction on peat soil, which has the advantages of lightness, strength, and self-compacting. Sand is one of the building blocks of foam mortar. The purpose of the study was to analyze the effect of the gradation of sand on the resulting physical and mechanical properties of foam mortar (foam concrete). In this research, six gradations of sand were made (gradations of 3 sand sources and 3 gradations based on pusjatan standards) and then used in the manufacture of foam mortar and analyzed for volumetric
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3

Yamusa, Yamusa Bello, Radzuan Sa'ari, Kamarudin Ahmad, Noraliani Alias, Mushairry Mustaffar, and Loke Kok Foong. "Monitoring Leachate Migration in Compacted Soil Using Digital Image Technique." Engineering, Technology & Applied Science Research 9, no. 1 (2019): 3685–91. https://doi.org/10.5281/zenodo.2576233.

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As leachate has been a source of groundwater contamination worldwide, this paper examines the phenomenon of leachate migration on different gradations of compacted laterite soil used as sanitary landfill liners. Three different soil gradations (30%, 40% and 50% with respect to fines content) used in this study were compacted in circular acrylic columns to provide a clear visualization of leachate migration into the soils. Digital image technique was used in capturing photos at successive time intervals to monitor the leachate migration. The captured digital images were fed into Matlab and conv
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4

Huang, Shuling, Xiuli Ding, Yuting Zhang, and Wei Cheng. "Triaxial Test and Mechanical Analysis of Rock-Soil Aggregate Sampled from Natural Sliding Mass." Advances in Materials Science and Engineering 2015 (2015): 1–14. http://dx.doi.org/10.1155/2015/238095.

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Rock-soil aggregate, as a specific geomaterial, exhibits complicated mechanical behavior. The rock-soil aggregate sampled from the deep layer of sliding mass at Jinpingzi area of Wudongde hydropower plant on Yangtze River is investigated to understand its mechanical behavior. Large-scale laboratory triaxial tests are conducted considering different gradations, stone contents and confining pressures. The results show that variation of stone content and gradation considerably affects the mechanical characteristics of rock-soil aggregate. Further, the influences of stone content, and gradation va
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5

Kogut, B. M. "ESTIMATE OF CHERNOZEM ERODIBILITY LEVEL ACCORDING TO THE HUMIFICATION DEGREE." Dokuchaev Soil Bulletin, no. 78 (May 1, 2015): 59–69. http://dx.doi.org/10.19047/0136-1694-2015-78-59-69.

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A short review of literature sources is presented to characterize the eroded soils according to their humus content. Traditional diagnostic indicators of the soil erodibility level based upon the humus status are the following: (1) decrease in the thickness of humus horizons in eroded soils in percentage of that in uneroded soil (standard); (2) decline in the humus storage in the eroded soil profile in percentage of that in uneroded soil (standard). It is worth emphasizing that the choice of the uneroded soil standard is a rather labor-consuming study in field and assumes an expert (subjective
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6

Ewing, Jordan, Thomas Oommen, Paramsothy Jayakumar, and Russell Alger. "Utilizing Hyperspectral Remote Sensing for Soil Gradation." Remote Sensing 12, no. 20 (2020): 3312. http://dx.doi.org/10.3390/rs12203312.

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Soil gradation is an important characteristic for soil mechanics. Traditionally soil gradation is performed by sieve analysis using a sample from the field. In this research, we are interested in the application of hyperspectral remote sensing to characterize soil gradation. The specific objective of this work is to explore the application of hyperspectral remote sensing to be used as an alternative to traditional soil gradation estimation. The advantage of such an approach is that it would provide the soil gradation without having to obtain a field sample. This work will examine five differen
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7

Li, Shuya, Tiancheng Wang, Hao Wang, Mingjie Jiang, and Jungao Zhu. "Experimental Studies of Scale Effect on the Shear Strength of Coarse-Grained Soil." Applied Sciences 12, no. 1 (2022): 447. http://dx.doi.org/10.3390/app12010447.

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Shear strength is an essential index for the evaluation of soil stability. Test results of the shear strength of scaled coarse-grained soil (CGS for short) are usually not able to accurately reflect the actual properties and behaviors of in situ CGS due to the scale effect. Therefore, this study focuses on the influence of the scale effect on the shear strength of scaled CGS, which has an important theoretical significance and application for the strength estimation of CGS in high earth-rock dam engineering. According to previous studies, the main cause of the scale effect for scaled CGS is th
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8

Hsu, Sung Chi, Huan Yang Chiang, and Ji Yuan Lin. "Effect of Gradation and Cement on the Properties of Soil-Cement Mixtures." Advanced Materials Research 535-537 (June 2012): 1719–22. http://dx.doi.org/10.4028/www.scientific.net/amr.535-537.1719.

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Eight non-plastic soils with different gradation are used for this research to study the appropriate choice of soil-cement mixture for a earth and rock-fill dam construction project. The properties of soil-cement materials are influenced by several factors, including type and proportion of soil, cementitious materials, water content, compaction, uniformity of mixing, curing conditions, and age of the compacted mixture. Based on the experimental results, the maximum dry density will increase with an increase in cement content for soils with low fines content. However, no significant variation w
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9

Huang, Xuebang, Zizhao Zhang, Ruihua Hao, and Zezhou Guo. "The Effects of Particle Gradation on Salinized Soil in Arid and Cold Regions." Water 14, no. 2 (2022): 236. http://dx.doi.org/10.3390/w14020236.

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Particle size grading impacts salt-frost heaving and dissolution collapse events of salinized soil on northwestern China’s arid and cold region highways. However, the influencing mechanisms remain unclear and the impact of varying particle size grading needs further investigation. Hence, this study focused on these effects and the number of freeze–thaw cycles on the characteristic changes in highway salinized soil in arid and cold regions. Three soil columns with different gradations were prepared to explore the gradation and the number of freeze–thaw cycle affects on salinized soil’s salt-fro
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10

Kong, Dequan, Rong Wan, Chenkai Zhao, et al. "Effect of conglomeration gradation on loess shear strength with different water content." Science Progress 104, no. 2 (2021): 003685042110105. http://dx.doi.org/10.1177/00368504211010581.

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Particle gradation and water content are important factors affecting shear strength of soil. However, due to chemical cementation and molecular attraction, loess particles commonly stick together forming conglomerations. Till date, the superposition effect of water content and conglomeration gradation on loess shear strength has rarely been studied and undeniably requires further systematic explorations and development. In this study, loess samples were prepared with three conglomeration gradations and five water contents, and the direct shear tests were systematically performed. The shear str
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11

Kouakou, N'guessan MoÏse, Olivier Cuisinier, Farimah Masrouri, Emmanuel Lavallée, and Tangi Le Borgne. "Estimation of the shear strength of a coarse soil with high fines content by parallel gradation method." E3S Web of Conferences 92 (2019): 06001. http://dx.doi.org/10.1051/e3sconf/20199206001.

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The determination of the mechanical properties of soils containing particles larger than the allowable size of standard laboratory equipments is complex. It is indeed necessary to remove the coarsest fraction to carry out the tests. This scalping poses a problem of reliability of the results at the scale of the structure. Parallel gradation is the method commonly used for estimating the shear strength of heterogeneous granular soils from tests on their finer fraction. However, the effect of high fines content on the estimation of shear strength by this method is not well understood. The result
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12

Kletkiewicz, Mirosław, and Antoni Sienkiewicz. "Glebowe kopce posówkowe – geneza, aktualny stan i możliwości ich zagospodarowania w drzewostanach sosnowych na przykładzie Nadleśnictwa Tuchola." Zarządzanie ochroną przyrody w lasach XIV (December 30, 2022): 63–105. http://dx.doi.org/10.5604/01.3001.0016.2220.

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Soil mounds with pine beauty pupae, piled on in mature pine stands planted from artificial forest regeneration on clean cut forest area after pine beauty gradation in in the twenties and thirties of the last century, play an important economic and ecological role in some forest complexes of Bory Tucholskie and the Puszcza Notecka. A characteristic feature of mechanical control of pine beauty was crafting mounds of soil (which varied in thickness) from material derived from the levels of organic and humus-mineral soils. The issue of the rational use of soil mounds with pine beauty in the period
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13

Saha, Uma, Fatima Rukshana, Md. Shahabuddin, Syed Md. Anwaruzzaman, Md. Matiar Rahman Mondol, and Nayan Chandra Ghosh. "EFFECT OF PARTICLE SHAPE ON ITS OTHER GRANULAR SOIL PROPERTIES." Technical Journal - River Research Institute 13, no. 1 (2016): 53–64. https://doi.org/10.5281/zenodo.12641754.

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Particle shape is usually determined for the coarse grained soil. It is one of the most important soil-grain properties. The other important soil grain properties are angle of shearing resistance of sands, gradation, denseness i.e. density index, uniformity of gradation etc. The mentioned factors have some inter related impacts. The strength of soil is an utmost important factor among all soil engineering parameters and is determined finding out the angle of shearing resistance. In this paper, particle shapes and particle sizes are determined minutely in the laboratory and its in-situ test suc
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14

Bothsa, Kumari, Damodhar Naidu Ch., and Dileep Kumar Pinninti. "Use of Industrial Waste in Road Embankment." International Journal of Trend in Scientific Research and Development 2, no. 4 (2018): 250–54. https://doi.org/10.31142/ijtsrd18438.

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The scarcity of soil which suits for construction activities by fulfilling geotechnical characteristics is forcing the pavement engineers to look for alternative materials for construction activity. On the other hand due to the rapid industrialization there is sharp increase in the number of crushing units, steel producing factories in so many states and the country as well. The crusher dust and Blast furnace slag obtained from these industries are collected and tested for various geotechnical characterizations. The suitability of partial or full replacement is checked by conducting CBR tests
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15

Wasil, Mariola, Urszula Wydro, and Elżbieta Wołejko. "Effect of Ureolytic Bacteria on Compressibility of the Soils with Variable Gradation." Architecture, Civil Engineering, Environment 16, no. 3 (2023): 131–39. http://dx.doi.org/10.2478/acee-2023-0040.

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Abstract The aim of this study is to present the effect of treatment with ureolytic bacteria (Sporosarcina pasteurii) on the compressibility parameters of mineral and anthropogenic soils. In the presence of the urease enzyme, secreted by a strain of Sporosarcina pasteurii bacteria, urea hydrolysis occurs, allowing CaCO3 to be precipitated. The literature suggests applying the Microbially Induced Calcite Precipitation (MICP) method to non-cohesive soils. In order to determine whether the biomineralization process occurs in other soil types, cohesive and anthropogenic soils were tested in the la
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16

Douglas, Kurt J., Robin Fell, William L. Peirson, and Hamish Studholme. "Experimental investigation of global backward erosion and suffusion of soils in embankment dams." Canadian Geotechnical Journal 56, no. 6 (2019): 789–807. http://dx.doi.org/10.1139/cgj-2018-0088.

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Many embankment dams constructed with a core of nonplastic or very low plasticity silt–sand–gravel (typically of glacial, fluvioglacial or alluvial origin) have experienced internal erosion. This has often expressed itself with the development of sinkholes or with intermittent episodes of increased leakage, which then reduces. In this investigation 22 soil samples with gradations representing the range of the soils used in embankment dam cores have been tested in the laboratory. All 22 soils tested were shown to be internally unstable with particle movement within the soil after placement. Som
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17

Ahmed, S. Sharif, Alejandro Martinez, and Jason DeJong. "Gradation and state effects on the strength and dilatancy of coarse-grained soils." E3S Web of Conferences 544 (2024): 13003. http://dx.doi.org/10.1051/e3sconf/202454413003.

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Well-graded soils can be found in nature and in engineered structures, such as dams and embankments. Prediction of their behavior is still an engineering challenge in part due to the lack of data in the literature, arguably due to difficulties associated in testing these soils in the laboratory and in situ. Particularly, there is still debate over the effect of the increased range of particle sizes (i.e., widening gradation) on the shear strength and dilatancy of coarse-grained soils. This paper presents the results of drained and undrained isotropically-consolidated triaxial compression tests
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18

Basson, M. S., A. Martinez, and J. T. DeJong. "A DEM Investigation on the Effect of Gradation on the Liquefaction Response and Fabric Evolution of Soils." IOP Conference Series: Earth and Environmental Science 1480, no. 1 (2025): 012052. https://doi.org/10.1088/1755-1315/1480/1/012052.

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Abstract Assessment of liquefaction triggering potential is an important aspect in the design of critical infrastructure. This paper uses Discrete Element Modeling (DEM) simulations to explore the effect of gradation on the liquefaction triggering and deformation accumulation in coarse-grained soils. Cyclic direct simple shear (DSS) simulations indicate that the state parameter, as defined as the difference between the current and critical state void ratios at a the same mean effective stress (p’), is a more robust metric for relating the soil state to the liquefaction resistance of sands. At
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19

Liu, Chuang, Tian-Zeng Ren, Rui Zhang, Qian-Feng Gao, and Jian-Long Zheng. "Influence of Gradation on Resilient Modulus of High Plasticity Soil-Gravel Mixture." Advances in Civil Engineering 2020 (May 14, 2020): 1–13. http://dx.doi.org/10.1155/2020/8887628.

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Because of low resilient modulus, high plasticity soil is often not allowed to fill road subgrades and is discarded as construction and demolition waste (CDW). To make use of the CDW, this study explored the possibility of improving high plasticity soil with gravel and examined the effect of gravel gradation on the resilient modulus of the soil-gravel mixture. A series of dynamic triaxial tests, tests of voids in coarse aggregate, and X-ray CT scans were carried out on high plasticity soil-gravel mixtures of different gravel contents and gravel gradation types. The test results show that there
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20

Al-Hadidy, Maysm Th. "CORRECTION PROCEDURE FOR THE DETERMINATION OF SOIL SPECIFIC SURFACE." Journal of Engineering 16, no. 01 (2010): 4673–94. http://dx.doi.org/10.31026/j.eng.2010.01.21.

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Specific surface has a very important role in geotacnic especially with that home dell with gypseous soils or other types of salty soils. Because its calculation need for high accuracy, a procedure is presented to calculate a correction factor for Specific surface determination.In a previous work, grain size distribution curves of many soil samples are collected. A value for the specific surface of each soil is determined summing the surface area of subintervals in the distribution curve.In this work, the values of specific surface are obtained from these gradation curves and compared to those
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21

Cheng, Ye, and Jinghu Yang. "Experimental Study on Static and Dynamic Characteristics of Sand–Clay Mixtures with Different Mass Ratios." Sustainability 16, no. 17 (2024): 7343. http://dx.doi.org/10.3390/su16177343.

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The alteration of soil static and dynamic characteristics induced by clay content constitutes a crucial issue in the realm of disaster prevention and mitigation within geotechnical engineering. The static and dynamic characteristics of mixed soils with varying sand–clay contents were investigated through the design and implementation of static and dynamic triaxial tests. The relationship between clay content and soil resistance to liquefaction was investigated, with an analysis of the influence of clay content on soil strength and static liquefaction performance. Furthermore, the study examine
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22

Syuhada, S., A. H. Muzakky, R. Kurniawan, E. T. Utami, and J. Hayati. "Effect of wet – dry cycles on CBR value and grain size distribution particle on compacted residual tuff soil." IOP Conference Series: Earth and Environmental Science 1173, no. 1 (2023): 012032. http://dx.doi.org/10.1088/1755-1315/1173/1/012032.

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Abstract Uncertain climate change is a natural phenomenon that is common nowadays. Soil is the result of weathering of rocks and climate change is one of the causes of this weathering. Residual soil is soil formed on top of the original rock layer. In addition to the parent rock, climate change also affects the residual soil, both in terms of grain size and shear strength. This climate change modeling was carried out by giving wet-dry treatment on residual tuff soil samples at the Institut Teknologi Sumatera (ITERA) which were compacted with a wet-dry cycle of 2 cycles, 4 cycles, 6 cycles, 8 c
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23

Chapuis, Robert P., and Michel Aubertin. "On the use of the Kozeny–Carman equation to predict the hydraulic conductivity of soils." Canadian Geotechnical Journal 40, no. 3 (2003): 616–28. http://dx.doi.org/10.1139/t03-013.

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The saturated hydraulic conductivity of a soil can be predicted using empirical relationships, capillary models, statistical models, and hydraulic radius theories. A well-known relationship between permeability and the properties of pores was proposed by Kozeny and later modified by Carman. The resulting equation is largely known as the Kozeny–Carman (KC) equation, although the two authors never published together. In the geotechnical literature, there is a large consensus that the KC equation applies to sands but not to clays. This view, however, is supported only by partial demonstration. Th
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24

Lu, Xiaoming, Liujun Fan, Na He, and Xinyan Lin. "Experimental Study on Engineering Characteristics of Cement-Lime-Improving Silt in Eastern Henan Province." Coatings 12, no. 4 (2022): 501. http://dx.doi.org/10.3390/coatings12040501.

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With the construction of expressways in eastern Henan, silt has been widely used as a filling material. However, the silt in this area is lacking clay, the content of active oxides in the soil is low, and the soil particles are bonded together. The property is poor, the erosion resistance is not strong, and the direct filling of the roadbed is prone to engineering problems. Due to the obvious regionality of silt in eastern Henan, this paper firstly analyzes the basic physical properties of silt in eastern Henan using compaction, compression, direct shear and particle gradation tests. The resea
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25

Wang, Wansheng, Xiaolei Man, Wanglin Li, Xia Xue, and Xiaomin Teng. "Experimental study on the effect of particle gradation on dewatering performance of geotubes." Journal of Measurements in Engineering 10, no. 2 (2022): 81–92. http://dx.doi.org/10.21595/jme.2022.22468.

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To clarify the effect of particle gradation of filling soil on the dewatering and consolidation performance of geotubes, the content of four-particle size classes (powder, fine, medium, and coarse) which are commonly used in engineering as the research object was taken. The dewatering rate, soil infiltration and solid-liquid mixing pressure in the bag with time when filling soil with different particles were studied, and the soil loss of the hanging bag was analyzed from the perspective of seepage soil gradation. The research results show that the dewatering process could be divided into the q
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26

Głuchowski, Andrzej. "Prediction of Resilient Modulus Value of Cohesive and Non-Cohesive Soils Using Artificial Neural Network." Materials 17, no. 21 (2024): 5200. http://dx.doi.org/10.3390/ma17215200.

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This paper investigates the application of Artificial Neural Networks (ANNs) for predicting the resilient modulus (Mr) of subgrade and subbase soils, which is a critical parameter in pavement design. Utilizing a dataset of 1683 Mr observations, the ANN model incorporates eight input variables, including soil gradation, plasticity, and stress conditions. The model was optimized using a quasi-Newton method, achieving high predictive accuracy, with a coefficient of determination (R2) of 0.9613 and low error rates for both selection and testing datasets. To further enhance model interpretability,
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27

Bi, Jinfeng, Xianqi Luo, and Hui Shen. "Modeling of Suffusion Considering the Influence of Soil Gradation." Transport in Porous Media 136, no. 3 (2021): 765–90. http://dx.doi.org/10.1007/s11242-020-01534-6.

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28

Wu, Er-lu, Jun-gao Zhu, Ge Chen, Meng-die Bao, and Wan-li Guo. "Gradation equation of coarse-grained soil and its applicability." Journal of Central South University 27, no. 3 (2020): 911–19. http://dx.doi.org/10.1007/s11771-020-4340-z.

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29

Babatunde, Quadri Olakunle, and Yong-Hoon Byun. "Soil Stabilization Using Zein Biopolymer." Sustainability 15, no. 3 (2023): 2075. http://dx.doi.org/10.3390/su15032075.

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The characterization and analysis of the cementation properties of novel biopolymer binders in soils are essential for their potential application in geotechnical engineering. This study investigates the cementation effect of a novel zein biopolymer binder on sandy soils. Soil specimens are mixed with various contents of zein biopolymer ranging from 0 to 5%. The mechanical and microscopic characteristics of the treated specimens are evaluated using unconfined compression tests and scanning electron microscopy, respectively, after curing for 3, 7, and 28 days. The results show a consistent incr
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30

Jin, Wei, Zezhi Deng, Gang Wang, Dan Zhang, and Linyi Wei. "Internal Erosion Experiments on Sandy Gravel Alluvium in an Embankment Dam Foundation Emphasizing Horizontal Seepage and High Surcharge Pressure." Water 14, no. 20 (2022): 3285. http://dx.doi.org/10.3390/w14203285.

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For an internally unstable soil, fine particles can move in the pore channels between coarse particles along with seepage flow; this process is termed internal erosion. To evaluate the internal stability and internal erosion behavior of sandy gravel alluvium beneath the suspended cutoff wall in an embankment dam foundation, a series of horizontal seepage tests were carried out on the four representative gradations of the alluvium layer using a large-scale high-pressure erosion apparatus. The evolutionary trends of hydraulic conductivity, the erosion ratio of fine particles, and volumetric stra
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31

Al-Baidhani, Ali, and Abbas Jawad Al-Taie. "Performance characteristics of low carbon waste material to stabilise soil with extremely high plasticity." Acta Polytechnica 61, no. 5 (2021): 579–89. http://dx.doi.org/10.14311/ap.2021.61.0579.

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The application of low-carbon and natural materials to mitigate the undesired properties of difficult soils is considered as a sustainable solution to the issues regarding these soils. Selecting some natural materials, of low carbon type, from the rubble of demolished buildings or debris from the construction of new buildings and recycling them in a poor or weak soil stabilisation process is a very little explored field of research in Iraq. This paper investigated the geotechnical characteristics of extremely high plasticity soil (EHPS) improved with a low-carbon building stone debris (BSD). F
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32

Yue, Jianwei, Wenhao Li, Xiang Zhu, et al. "Experimental Study on Restoration Materials of Newly Earthen Ruins under Different Slaking Times." Materials 15, no. 12 (2022): 4356. http://dx.doi.org/10.3390/ma15124356.

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The newly repaired Kaifeng City Wall has serious cracks, shedding and other issues on the surface, which constitute a significant problem. It is of great significance for the restoration of Kaifeng City Wall to explore the repair materials and techniques suitable for Kaifeng City Wall. The pH, particle gradation, compressive strength and SEM were tested on soil samples with different lime and MgO contents under different slaking times. With the increase of slaking time, the pH value first increased and then decreased. The relationship between pH value and strength showed three stages. The stre
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Zhang, Jie, Qiuhua Rao, and Wei Yi. "A New Creep–Fatigue Interaction Model for Predicting Deformation of Coarse-Grained Soil." Materials 15, no. 11 (2022): 3904. http://dx.doi.org/10.3390/ma15113904.

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Studying the creep–fatigue interaction of the coarse-grained soil (CGS) is very important for safety assessment and disaster prevention in subgrade engineering. Current research work is mainly focused on single creep or fatigue deformation. In this paper, a new creep–fatigue interaction model is established to predict the creep–fatigue interaction deformation of different gradation CGS based on the rheological mechanics and the interactive relationship between creep and fatigue complex compliance method. Triaxial creep–fatigue interaction tests of different gradations CGS under different avera
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34

Li, B. "Study on Shear Properties of the Soil-rock Mixture." E3S Web of Conferences 165 (2020): 04079. http://dx.doi.org/10.1051/e3sconf/202016504079.

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In order to study the shear properties of the soil-rock mixture, a large-scale indoor direct shear test is used to test the shear strength (τ) of SRM under different positive pressures, and calculates the internal friction angle (φ) and cohesive force (c) according to the molar theory. The effects of soil-rock ratio, gradation, maximum particle size, moisture content, and compaction on the shear properties of the soil-rock mixtures are studied. The results show that as the soil-rock ratio decreases, the τ and φ of the SRM increase, while the c increases first and then decreases, and reaches th
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35

Cao, Cheng, Zhihua Zhang, Zengguang Xu, Junrui Chai, Yuan Shi, and Ning Li. "Non-Darcy Seepage Models of Broken Rock Mass Under Changed Hydraulic and Porous Structure." Water 17, no. 11 (2025): 1676. https://doi.org/10.3390/w17111676.

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The non-Darcy seepage characteristics of broken rock mass is important for analyzing the seepage and stability of rock and soil mass. At present, the research on non-Darcy seepage models considering hydraulic conditions and medium void structures has considerable room for improvement. In this study, non-Darcy seepage tests were conducted on broken rock mass under the influence of different hydraulic pressures, sample gradations, and porosities. The influence of sample gradation and porosity on the linear and nonlinear term coefficients of Forchheimer’s law, the critical criterion of non-Darcy
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36

Zhang, Peng, Haomin Song, Kaijun Rui, Juncai Li, and Shengnian Wang. "Effects of Soil Properties on the Performance of TRD Cut-Off Wall." Advances in Civil Engineering 2019 (August 21, 2019): 1–12. http://dx.doi.org/10.1155/2019/7098498.

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The trench cutting remixing deep wall (TRD) method is a new cement soil cut-off wall construction technique, which has been widely used in cofferdam, embankment dam, and underground waterproof curtain structures. The chain cutter of TRD moves horizontally to cut and stir different soil layers by up and down to form a cement-mixed soil diaphragm wall with continuous and uniform thickness, the mechanics and permeability of which are obviously different from those of cement soil with a horizontally mixed single soil layer in traditional deep mixing pile (DMP). In this paper, five sets of onsite w
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Faruqi, Muhammad Alfian, Bashar S. Mohammed, Abdullah Anwar, Dedy Dharmawansyah, and Hermansyah Hermansyah. "The Influence of Crumb Rubber and Cement Inclusions Containing Graphene Oxide on the Physical and Mechanical Properties of Soil." MEDIA KOMUNIKASI TEKNIK SIPIL 29, no. 1 (2023): 123–31. http://dx.doi.org/10.14710/mkts.v29i1.38232.

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Improving the physical properties of problematic soil has became fundamental consideration in various constructions, especially geotechnical engineering, to avoid failures, increase stability and strength of soil. Silty sand is one of the problematic soils and often encountered in the field where the fine gradation contained in the soil allows the soil to easily deform under pressure and lateral forces. In this study, silty sand was mixed with three variations of crumb rubber content (5, 10, and 15% based on soil weight), 6% cement (based on soil weight), and 0.05% graphene oxide (based on cem
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38

Nedostrelova, Larysa V. "Dynamics of snow cover in Kirovohrad region at the end of the XX and the beginning of the XXI centuries." Journal of Geology, Geography and Geoecology 30, no. 1 (2021): 133–44. http://dx.doi.org/10.15421/112112.

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 Snow cover significantly affects the formation of climate in winter. The snow over has low thermal conductivity, which protects the soil from freezing. In the spring, the snow cover significantly moistens the soil and plays an important role in the surface water regime and in the economic activity of the country. It should be noted that the lack or insufficient height of snow cover can be the cause of freezing of winter crops and their death, which leads to a decrease and even loss of yield. Accordingly, the increase in crop yields depends on the proper use of snow cover.
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39

Wang, Jinhua, Haibin Ding, Lingxiao Guan, and Yulin Wang. "Prediction on Permeability Coefficient of Continuously Graded Coarse-Grained Soils: A Data-Driven Machine Learning Method." Applied Sciences 15, no. 10 (2025): 5248. https://doi.org/10.3390/app15105248.

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Accurately predicting the permeability of coarse-grained soils is crucial for ensuring geotechnical safety and performance. In this study, 64 coarse-grained soil (CGS) samples were designed using a negative exponential gradation equation (NEGE), and computational fluid dynamics–discrete element method (CFD-DEM) coupled seepage simulations were conducted to generate a permeability coefficient (k) dataset comprising 256 entries under varying porosity and gradation conditions. Three machine learning models—a neural network model (BPNN), a regression model (GPR), and a tree-based model (RF)—were e
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40

Jayakrishnan, Veena, Beena K S, Unni Kartha G, and J. S. Vinod. "Effect of Hammer Impact on Wave Propagation Characteristics of Soil." International Journal of Geotechnical Earthquake Engineering 10, no. 2 (2019): 50–68. http://dx.doi.org/10.4018/ijgee.2019070104.

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Wave transmission through soil due to dynamic load causes many problems to civil engineers craving safe construction. In this article, a laboratory model study is conducted to investigate the vibration propagation characteristics of soil due to the falling masses at different depths. Different types of impact, soils, and relative densities are used to study the characteristics of vibration transmission and energy dissipation. It was found that the increase in relative density and decrease in the depth causes an increase in the Peak Particle Acceleration and wave velocity of soil. An attempt is
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41

Feng, Jun, and Guangze Zhang. "Influence of Clay Fraction and Mineral Composition on Unsaturated Characteristics of Cohesive Foundation Soil in Airports." Geofluids 2021 (October 21, 2021): 1–10. http://dx.doi.org/10.1155/2021/5475391.

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Taking unsaturated clay foundation soil of an airport project in Hefei as the research object, the effects of particle gradation and mineral composition on the unsaturated soil properties were analyzed through two kinds of tests. The results show that there is a good correlation between the residual water content and the clay fraction or silt fraction content in the grading, and the residual water content has a significant positive linear correlation with the clay fraction content, but a negative linear correlation with the silt fraction content. Residual matric suction has a nonlinear correla
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42

Bao, Meng-Die, Jun-Gao Zhu, Hui-Feng Zheng, and Zhong Liu. "Influence of Gradation of Coarse-Grained Soil on the Permeability Coefficient." Soil Mechanics and Foundation Engineering 58, no. 5 (2021): 367–73. http://dx.doi.org/10.1007/s11204-021-09753-9.

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43

Honne Basanna, Nagaraj, Shaivan Hirebelaguly Shivaprakash, Arunkumar Bhimahalli, Prasanna Kumar Parameshwarappa, and Jeremie Gaudin. "Role of Stabilizers and Gradation of Soil in Rammed Earth Construction." Journal of Materials in Civil Engineering 32, no. 5 (2020): 04020072. http://dx.doi.org/10.1061/(asce)mt.1943-5533.0003112.

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44

Kumar, Ch Vijaya. "Prediction of Compaction Characteristics Gradation and Plasticity Characteristics of Red Soil." International Journal of Civil Engineering 5, no. 12 (2018): 22–26. http://dx.doi.org/10.14445/23488352/ijce-v5i12p104.

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Wang, Min, G. N. Pande, Stan Pietruszczak, and Z. X. Zeng. "Determination of strain-dependent soil water retention characteristics from gradation curve." Journal of Rock Mechanics and Geotechnical Engineering 12, no. 6 (2020): 1356–60. http://dx.doi.org/10.1016/j.jrmge.2020.03.005.

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46

Zhou, Tie Gang, Ying Xu, and Chao Zhang. "The Research on the Application of Soil-Rock Mixture Material in Rammered Earth Buildings." Advanced Materials Research 446-449 (January 2012): 989–94. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.989.

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the traditional domestic rammered earth buildings technology use natural soil material without scientific and reasonable soil sample analysis and grading test, and artificial construction, so the rammered earth wall is usually low intensity and poor durability. This article researches the application of soil-rock mixture materials in modern rammered earth buildings with the soil-rock mixture engineering characteristic, the reasonable gradation and process improvement. We want to improve the defects of material selection and construction technology in traditional rammered earth buildings, promo
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47

Barbour, S. Lee. "Nineteenth Canadian Geotechnical Colloquium: The soil-water characteristic curve: a historical perspective." Canadian Geotechnical Journal 35, no. 5 (1998): 873–94. http://dx.doi.org/10.1139/t98-040.

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The constitutive relationship between water content or degree of saturation and suction is called the soil-water characteristic curve. The soil-water characteristic curve provides a conceptual framework in which the behavior of unsaturated soils can be understood. A historical review illustrates how the work of early researchers in soil science and geotechnical engineering laid the foundation for our current understanding of this relationship. Key elements of these early studies were a conceptual understanding of the soil-water characteristic curve as a relationship between the mass or volume
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48

Nguyen, Thanh Sang, Tuong Lai Nguyen, and Duc Tiep Pham. "Experimental study of interface shear characteristics between calcareous soil and steel, application to estimate axial bearing capacity of steel pile." Vietnam Institute for Building Science and Technology 2023, en.vol1 (2023): 41–48. http://dx.doi.org/10.59382/j-ibst.2023.en.vol1-5.

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A modified direct shear tests of interface between well-graded coral sand and coral sandy-gravel with smooth steel plate were conducted in this study under various normal stress levels. The obsevation from experimental results indicates that: (1) interface shear behavior between well-graded coral soils and steel structure follows the strain hardening rules; (2) the magnitudes of friction resistances between two materials are related to the gradation and grain size of coral soils, for coral sand limit sliding displacement is around 1mm with interface friction angle of 27.9o while for coral sand
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Wang, Tao, Sihong Liu, Yan Feng, and Jidu Yu. "Compaction Characteristics and Minimum Void Ratio Prediction Model for Gap-Graded Soil-Rock Mixture." Applied Sciences 8, no. 12 (2018): 2584. http://dx.doi.org/10.3390/app8122584.

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Gap-graded soil-rock mixtures (SRMs), composed of coarse-grained rocks and fine-grained soils particles, are very inhomogeneous materials and widely encountered in geoengineering. In geoengineering applications, it is necessary to know the compaction characteristics in order to estimate the minimum void ratio of gap-graded SRMs. In this paper, the void ratios of compacted SRMs as well as the particle breakage during vibrating compaction were investigated through a series of vibrating compaction tests. The test results show that gap-graded SRMs may reach a smaller void ratio than the SRM with a
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Yuan, Junping, Liliang Huang, Long Chen, Xiangxu Li, Bingbing Chen, and Tao Liu. "Research on the Influence Mechanism of Foam Slurry Wall Formation." Applied Sciences 15, no. 10 (2025): 5253. https://doi.org/10.3390/app15105253.

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Incorporating foam into slurry can improve its wall-supporting performance. However, the wall formation mechanism of foam slurry under different conditions remains unclear. In this study, numerical simulations were conducted to investigate the influence of soil properties, slurry composition, and pressure gradient on the infiltration process and wall formation effectiveness of foam slurry, which was validated through laboratory experiments. The results indicate that the infiltration process of foam slurry in soil can be divided into three stages—infiltration, clogging, and membrane formation.
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