|Table of Contents|

Effect of Different Particle Grading on Shearing Strength of Completely Weathered Granite Backfill Soil(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2024年第05期
Page:
689-701
Research Field:
工程地质与环境灾害
Publishing date:

Info

Title:
Effect of Different Particle Grading on Shearing Strength of Completely Weathered Granite Backfill Soil
Author(s):
GAO Kai1; 2;  DUAN Hong-xin1; 2;  LI Hua3*;  CAI Bao-xin2; 4;  AN Peng1; 2;  KONG Zhi-gang1; 2
(1. Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China; 2. Key Laboratory of Geohazard Forecast and Geoecological Restoration in Plateau Mountainous Area of Ministry of Natural Resources, Kunming University of Science and Technology, Kunming 650093, Yunnan, China; 3. Kunming Coal Design and Research Institute Co., Ltd, Kunming 650011, Yunnan, China; 4. Yunnan Geological Environment Monitoring Institute, Kunming 650216, Yunnan, China)
Keywords:
particle grading;  completely weathered granite;  backfill soil;  shearing strength;  soil mechanics;  improved soil;  Yunnan
PACS:
TU45
DOI:
10.19814/j.jese.2024.01016
Abstract:
Following slope excavation, completely weathered granite backfill soil is created. It has a loose structure, weak mechanical and physical qualities, and is susceptible to water erosion, which can cause significant slope erosion. Traditional treatment methods have a limited impact; thus, improving the physical and mechanical qualities of the soil as well as its anti-scour ability can be accomplished effectively through soil renovation. The completely weathered granite backfill soil was taken as its primary research object. Indoor particle analysis tests and direct shear testing were used to perform a series of shear strength tests of remolded mixed soil under various mass proportions of red clay and sand particle. The results show that the nonuniformity coefficient and curvature coefficient generally rise when the mass proportions of red clay to sand particle increases. Grading parameters have an impact on the internal friction angle and cohesion by altering the ratio of fine to coarse particles in the soil as well as the way those particles interact with one another. This has an impact on the shear strength of mixed soil. Of these, adding sand particle increases the internal friction angle of mixed soil, but its cohesion is lower than that of backfill soil when the mass proportion exceeds 18%. Red clay, on the other hand, boosts cohesion, which reduces the internal friction angle when the mass proportion exceeds 30%. Furthermore, the red clay can enhance the chemical and physical characteristics, fertility levels, and soil shear strength of backfill soil. Although red clay with a mass proportion of 6% offers the best results, it can be chosen from a range of 6%-30% based on the needs in practical application. The ideal choice for sand particle mass proportion, taking into account the precautionary measures of future work, is 18%.

References:

[1] 史志华,刘前进,张含玉,等.近十年土壤侵蚀与水土保持研究进展与展望[J].土壤学报,2020,57(5):1117-1127.
SHI Zhi-hua,LIU Qian-jin,ZHANG Han-yu,et al.Study on Soil Erosion and Conservation in the Past 10 Years:Progress and Prospects[J].Acta Pedologica Si-nica,2020,57(5):1117-1127.
[2] LIU D D,SHE D L,YU S E,et al.Rainfall Intensity and Slope Gradient Effects on Sediment Losses and Splash from a Saline-sodic Soil Under Coastal Reclamation[J].Catena,2015,128:54-62.
[3] CHEN J,XIAO H B,LI Z W,et al.How Effective Are Soil and Water Conservation Measures(SWCMs)in Reducing Soil and Water Losses in the Red Soil Hilly Region of China? A Meta-analysis of Field Plot Data[J].Science of the Total Environment,2020,735:139517.
[4] GAO K,KONG Z G,LI Y Q,et al.Experimental Study on Runoff and Sediment Production of the Fully Wea-thered Granite Backfill Slope Under Heavy Rain in Longling,Yunnan Province[J].Sustainability,2024,16(4):1454.
[5] 张慧敏,李燕清,燕永锋,等.不同坡度条件下的全风化花岗岩回填土边坡生态防护措施[J].水土保持学报,2022,36(6):156-162.
ZHANG Hui-min,LI Yan-qing,YAN Yong-feng,et al.Ecological Protection Measures of Completely Wea-thered Granite Backfill Slope Under Different Slope Conditions[J].Journal of Soil and Water Conservation,2022,36(6):156-162.
[6] 张 凯,孔志岗,李燕清,等.全风化花岗岩管沟回填土坡面侵蚀影响因素及交互作用[J].水土保持学报,2023,37(1):52-58.
ZHANG Kai,KONG Zhi-gang,LI Yan-qing,et al.Influence Factors and Interaction of Slope Erosion of Completely Weathered Granite Pipe Trench Backfill[J].Journal of Soil and Water Conservation,2023,37(1):52-58.
[7] TIAN H J,KONG Z G.Influence of Rainfall Intensity and Slope on the Slope Erosion of Longling Completely Weathered Granite[J].Applied Sciences,2023,13(9):5295.
[8] 葛 华,方迎潮,赵 飞,等.中缅油气管道龙陵段管沟回填土冲蚀过程模拟[J].人民长江,2021,52(11):122-127.
GE Hua,FANG Ying-chao,ZHAO Fei,et al.Numerical Modeling of Erosion Process of Backfill Soil in Pi-pe Trench of Longling Section of Sino-Burmese Oil and Gas Pipeline[J].Yangtze River,2021,52(11):122-127.
[9] 龙志东,王中文,史 斌,等.花岗岩残积土抗剪强度及其影响因素试验[J].长沙理工大学学报(自然科学版),2016,13(3):25-31.
LONG Zhi-dong,WANG Zhong-wen,SHI Bin,et al.Experimental Research for Shear Strength and Its Influencing Factors of Granite Residual Soil[J].Journal of Changsha University of Science and Technology(Natural Science),2016,13(3):25-31.
[10] 赵建军,王思敬,尚彦军,等.全风化花岗岩抗剪强度影响因素分析[J].岩土力学,2005,26(4):624-628.
ZHAO Jian-jun,WANG Si-jing,SHANG Yan-jun,et al.Control Factors on Shear Strength of Completely Decomposed Granite[J].Rock and Soil Mechanics,2005,26(4):624-628.
[11] 尚彦军,岳中琦,赵建军,等.全风化花岗岩抗剪强度试验结果对比及影响因素分析[J].工程地质学报,2004,12(2):199-207.
SHANG Yan-jun,YUE Zhong-qi,ZHAO Jian-jun,et al.Comparison of Shearing Strengths of the Completely Decomposed Granite and Analysis of Contributing Factors[J].Journal of Engineering Geology,2004,12(2):199-207.
[12] 赵建军,王思敬,尚彦军,等.香港全风化花岗岩饱和直剪试验中的剪胀问题[J].工程地质学报,2005,13(1):44-48.
ZHAO Jian-jun,WANG Si-jing,SHANG Yan-jun,et al.Dilatation in Direct Shear Tests of Hong Kong Completely Decomposed Granite[J].Journal of Engineering Geology,2005,13(1):44-48.
[13] 王贵荣,董 晨,段 钊,等.粗颗粒组分含量对中细砂抗剪强度的影响[J].西安科技大学学报,2020,40(1):24-30.
WANG Gui-rong,DONG Chen,DUAN Zhao,et al.Effect of Coarse Particle Content on Shear Strength of Medium Sand[J].Journal of Xi'an University of Science and Technology,2020,40(1):24-30.
[14] 李永松,周国庆,陈国舟,等.颗粒破碎对砂土剪切性质影响的离散单元研究[J].土工基础,2011,25(6):53-56.
LI Yong-song,ZHOU Guo-qing,CHEN Guo-zhou,et al.DEM Investigations of the Influence of Particle Crushing on the Shear Properties of Sands[J].Soil Engineering and Foundation,2011,25(6):53-56.
[15] 李天话,樊晓一,姜元俊.岩土体颗粒级配对滑坡碎屑流冲击作用的影响研究[J].山地学报,2018,36(2):289-297.
LI Tian-hua,FAN Xiao-yi,JIANG Yuan-jun.Influen-ce of Gradation on the Impact Effect of Landslide De-bris Flow[J].Mountain Research,2018,36(2):289-297.
[16] 刘忠强,薛亚东,黄宏伟,等.崩积体剪切性能试验研究[J].岩土力学,2012,33(8):2349-2358.
LIU Zhong-qiang,XUE Ya-dong,HUANG Hong-wei,et al.Experimental Research on Shear Behavior of Co-lluvium[J].Rock and Soil Mechanics,2012,33(8):2349-2358.
[17] 蒋宇豪,郭 帅,吕耀志.管道回填土粒径级配对土体侵蚀影响试验研究[J].合肥工业大学学报(自然科学版),2023,46(3):347-351,407.
JIANG Yu-hao,GUO Shuai,LYU Yao-zhi.Experimental Study on the Influence of Backfill Soil Gradation on Soil Erosion Around Defective Sewers[J].Journal of Hefei University of Technology(Natural Science),2023,46(03):347-351,407.
[18] 麻 考,许春阳,陈永平,等.不同级配组成对泥沙流变特性影响实验研究[J].泥沙研究,2024,49(2):25-32.
MA Kao,XU Chun-yang,CHEN Yong-ping,et al.Experimental Study on the Influence of Silt Content on Sediment Rheological Properties[J].Journal of Se-diment Research,2024,49(2):25-32.
[19] 付彦龙,谢 锴,苏东辉.不同级配煤散体剪切特性试验研究[J].黑龙江科技大学学报,2023,33(1):40-45.
FU Yan-long,XIE Kai,SU Dong-hui.Experimental Study on Shear Properties of Granular Coal with Different Gradation[J].Journal of Heilongjiang University of Science and Technology,2023,33(1):40-45.
[20] 俞 昀,周金政,杨果林.水泥改良全—强风化石英砂岩直剪试验研究[J].建筑结构,2022,52(增1):2474-2477.
YU Jun,ZHOU Jin-zheng,YANG Guo-lin.Experimental Study on Direct Shear Test of Cement Modified Weathering Quartz Sandstone[J].Building Structure,2022,52(S1):2474-2477.
[21] HAMIDI A,AZINI E,MASOUDI B.Impact of Gradation on the Shear Strength-dilation Behavior of Well Graded Sand-gravel Mixtures[J].Scientia Iranica,2012,19(3):393-402.
[22] HUANG M Y,XIONG J L,TANG J B,et al.Experimental Study on Shear Strength of Expansive Soil Improved by Lime-weathered Sand[J].Applied Mecha-nics and Materials,2013,446/447:1441-1447.
[23] 夏力农,周松林,杨 琳,等.塑料类材料与砂土接触界面直剪试验研究[J].路基工程,2015(6):124-127.
XIA Li-nong,ZHOU Song-lin,YANG Lin,et al.Study on Contact Interface Between Plastic Materials and Sand by Direct Shear Test[J].Subgrade Engineering,2015(6):124-127.
[24] 冯晓腊,王方艳,唐 璇,等.剪切盒尺寸与平均粒径对砂土抗剪强度的影响[J].科学技术与工程,2017,17(34):104-110.
FENG Xiao-la,WANG Fang-yan,TANG Xuan,et al.Effects of Shear Box Size and Mean Grain Size on Sandy Soil Shearing Strength[J].Science Technology and Engineering,2017,17(34):104-110.
[25] 李子睿,洪 勇,唐少帅,等.级配缺失对砂土剪切力学特性的影响[J].土工基础,2020,34(1):61-64.
LI Zi-rui,HONG Yong,TANG Shao-shuai,et al.Ef-fect of Gradation Missing on the Shear Strength of Sandy Soils[J].Soil Engineering and Foundation,2020,34(1):61-64.
[26] 刘 轩,刘文锴,徐云博,等.煤矸石回填土物理力学性能试验研究[J].煤炭科学技术,2015,43(7):50-54,96.
LIU Xuan,LIU Wen-kai,XU Yun-bo,et al.Experimental Study on Physics and Mechanics Performances of Coal Refuse Backfill Soil[J].Coal Science and Te-chnology,2015,43(7):50-54,96.
[27] 赵明华,刘建军,罗 宏,等.土石混填体抗剪强度特性及影响因素的试验研究[J].岩土力学,2017,38(4):965-972.
ZHAO Ming-hua,LIU Jian-jun,LUO Hong,et al.Experimental Studies of Shear Strength Characteristics and Influencing Factors of Soil-rock Aggregate Mixture[J].Rock and Soil Mechanics,2017,38(4):965-972.
[28] GB/T 50123—2019,土工试验方法标准[S].
GB/T 50123—2019,Standard for Soil Test Method[S].
[29] 喜银巧,赵 英,李生宇.三种土壤改良剂对风沙土抗剪强度的影响[J].土壤学报,2018,55(6):1401-1410.
XI Yin-qiao,ZHAO Ying,LI Sheng-yu.Effects of Three Kinds of Soil Amendments on Shear Strength of Aeolian Soi[J].Acta Pedologica Sinica,2018,55(6):1401-1410.
[30] 李坤鹏,姚华彦.砂岩改良膨胀土试验研究[J].水电能源学,2021,39(12):147-150.
LI Kun-peng,YAO Hua-yan.Experimental Study on Sandstone Improved Expansive Soil[J].Water Resources and Power,2021,39(12):147-150.
[31] 陈永健,赵艳林,文松松,等.黏粒含量对砂土强度和压缩特性的影响[J].科学技术与工程,2017,17(23):281-286.
CHEN Yong-jian,ZHAO Yan-lin,WEN Song-song,et al.Effect of Clay Content on the Strength and Compressibility of Sandy Soil[J].Science Technology and Engineering,2017,17(23):281-286.
[32] ANVARI S M,SHOOSHPASHA I,KUTANAEI S S.Effect of Granulated Rubber on Shear Strength of Fi-ne-grained Sand[J].Journal of Rock Mechanics and Geotechnical Engineering,2017,9(5):936-944.
[33] 刘飞禹,李昊泽,符 军,等.橡胶砂级配对混合土体剪切特性影响研究[J].岩土力学,2023,44(3):663-672.
LIU Fei-yu,LI Hao-ze,FU Jun,et al.Effect of Rubber-sand Mixtures Gradation on Shear Characteristics of Mixed Soil[J].Rock and Soil Mechanics,2023,44(3):663-672.
[34] 杨 俊,黎新春,童 磊.风化砂改良高液限红黏土强度特性试验研究[J].南京理工大学学报,2015,39(2):181-186.
YANG Jun,LI Xin-chun,TONG Lei.Test on Streng-th Property of Weathered Sand Improved High Liquid Limit Red Clay[J].Joumal of Nanjing University of Science and Technology,2015,39(2):181-186.
[35] CHEN K,SHAO D,LIU Z Q,et al.Experimental Stu-dy on Basic Engineering Properties of Loess Improved by Burnt Rock[J].Scientific Reports,2023,13:11023.
[36] 李 驰,于 浩.固化风沙土强度特性及固化机制试验研究[J].岩土力学,2009,30(增2):48-53.
LI Chi,YU Hao.Experimental Studies of Strength Characteristics and Solidified Mechanism for Solidified Aeolian Sandy Soil[J].Rock and Soil Mechanics,2009,30(S2):48-53.
[37] 徐加盼.颗粒组成对花岗岩风化岩土体抗剪强度的影响研究[D].武汉:华中农业大学,2020.
XU Jia-pan.Effects of Particle Size Distribution on Shear Strength of Weathered Granitic Rocks and Soils[D].Wuhan:Huazhong Agricultural University,2020.
[38] 陈 铖,刘小清,罗正东,等.颗粒级配对粗粒土强度与变形特性影响的研究[J].工程地质学报,2016,24(6):1191-1198.
CHEN Cheng,LIU Xiao-qing,LUO Zheng-dong,et al.Study of Strength and Deformation Characteristic of Unbound Granual Material with Different Grain Composition[J].Journal of Engineering Geology,2016,24(6):1191-1198.
[39] 徐明刚,姚宗健.颗粒组成和基质吸力对残积土抗剪强度的影响[J].人民长江,2024,55(5):178-185.
XU Ming-gang,YAO Zong-jian.Effect of Particle Composition and Matric Suction on Shear Strength of Residual Soil[J].Yangtze River,2024,55(5):178-185.
[40] 张 凯.降雨条件下龙陵地区全风化花岗岩管沟回填土坡面冲刷特性及数值模拟研究[D].昆明:昆明理工大学,2023.
ZHANG Kai.Study on Erosion Characteristics and Numerical Simulation of Fully Weathered Granite Pipe Trench Backfill Slope in Longling Area Under Rainfall Conditions[D].Kunming:Kunming University of Science and Technology,2023.
[41] 张 垚.中缅油气管道龙陵段坡面流水侵蚀影响因素分析研究[D].昆明:昆明理工大学,2021.
ZHANG Yao.Analysis and Study on Factors Influencing Slope Water Erosion in the Longling Section of the China Myanmar Oil and Gas Pipeline[D].Kunming:Kunming University of Science and Technology,2021.
[42] LI C J,LEI J Q,ZHAO Y,et al.Effect of Saline Water Irrigation on Soil Development and Plant Growth in the Taklimakan Desert Highway Shelterbelt[J].Soil and Tillage Research,2015,146:99-107.

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Last Update: 2024-10-01