山东大学学报 (工学版) ›› 2022, Vol. 52 ›› Issue (1): 74-84.doi: 10.6040/j.issn.1672-3961.0.2021.063
• • 上一篇
邓苗毅1,闫启耀1,王金山2*
DENG Miaoyi1, YAN Qiyao1, WANG Jinshan2*
摘要： 为探究粗粒氯盐渍土的路用性能,通过室内动三轴试验和承载比试验,研究粗粒氯盐渍土的动态回弹模量和承载比CBR(California bearing ratio, CBR)受应力级位、含水率及含盐量影响的演变规律。试验结果表明:动态回弹模量随围压、体应力的增加而增大,随偏应力的增大而减小,CBR随单位压力的增大而增大;含盐量和含水率越高,应力对动态回弹模量和CBR影响越明显;相同应力水平下,随含水率、含盐量的增高,动态回弹模量和CBR的降低幅度逐渐增大,且盐分影响较水分更为显著。数据分析发现,所测得回弹模量与CBR最小分别为51.05 MPa和11.98%,均满足路基规范对填料路用性能的要求,并评价了该类盐渍土作为路基填料的可行性。研究成果为有效利用粗粒盐渍土填筑路基提供科学依据。
中图分类号:
| [1] 徐攸在. 盐渍土地基[M]. 北京: 中国建筑工业出版社, 1993. [2] 杨劲松. 中国盐渍土研究的发展历程与展望[J]. 土壤学报, 2008, 45(5): 837-845. YANG Jinsong. Development and prospect of the research on salt-affected soils in China[J]. Journal of Soil, 2008, 45(5): 837-845. [3] 李静. 粗颗粒盐渍土路基冻融室内试验研究[D].西安: 长安大学, 2015. LI Jing. The indoor experimental study on coarse saline soil roadbed under freeze-thaw condition[D]. Xi'an: Chang'an University, 2015. [4] 中华人民共和国住房和城乡建设部. 盐渍土地区建筑技术规范: GB/T 50942—2014 [S]. 北京: 中国计划出版社, 2015. [5] 代红娟. 察格高速公路盐渍土填料特性试验研究[D].西安: 长安大学, 2011. DAI Hongjuan. Experimental study on subgrade filling characteristics of Saline soil in Chaerhan-Geermu Expressway[D]. Xi'an: Chang'an University, 2011. [6] 乌延玲,冯忠居,王廷武,等. 极度干旱区板块状盐渍土路用性能试验[J]. 长安大学学报(自然科学版), 2011, 31(1): 31-35. WU Yanling, FENG Zhongju, WANG Tingwu, et al. Road performance test of plate-like saline soil in extremely arid regions[J]. Journal of Chang'an University(Natural Science Edition), 2011, 31(1): 31-35. [7] 陈荣涛,刘军辉,刘军勇. 氯盐型弱盐渍土路用性能试验研究[J]. 湖南交通科技, 2012, 38(4): 71-73. CHEN Rongtao, LIU Junhui, LIU Junyong. Experimental study on road performance of chloride weakly saline soil[J]. Hunan Communication Science and Technology, 2012, 38(4): 71-73. [8] 李海潮,尹睿捷,张梅玲. 砂砾改良盐渍土用作路基填料的研究[J]. 路基工程, 2014(1): 53-57. LI Haichao, YIN Ruijie, ZHANG Meiling. Study on use of gravel improved saline soil as subgrade fill[J]. Subgrade Engineering, 2014(1): 53-57. [9] 黄晓明. 路基路面工程[M]. 北京: 人民交通出版社, 2019. [10] 李志勇. 公路路基动强度设计方法及其在全风化花岗岩路基中的应用研究[D].成都:西南交通大学, 2005. LI Zhiyong. Study on design method of the dynamic strength and its application to the full weathering granite subgrade in highway subgrade[D]. Chengdu: Southwest Jiaotong University, 2005. [11] 尹松,孔令伟,杨爱武,等. 花岗岩残积土填料路用工程特性室内试验研究[J]. 岩土力学, 2016, 37(增刊2): 287-293. YIN Song, KONG Lingwei, YANG Aiwu, et al. Indoor experimental study of road performance of granite residual soil for subgrade filling materials[J]. Rock and Soil Mechanics, 2016, 37(Suppl.2): 287-293. [12] 胡焕校,孙端阳,周丁. 花岗岩残积土路用性能影响因素研究[J]. 水文地质工程地质, 2017, 44(5): 92-99. HU Huanxiao, SUN Duanyang, ZHOU Ding. A study of influence factors on the road characteristics of granite residual soil[J]. Hydrogeology & Engineering Geology, 2017, 44(5): 92-99. [13] 辛强,王选仓,穆柯. 干旱半干旱地区路基CBR值标准的修订[J]. 长安大学学报(自然科学版), 2011, 31(2): 25-28. XIN Qiang, WANG Xuancang, MU Ke. Revising standard of subgrade California Bearing Ratio(CBR)value in arid and semi-arid areas[J]. Journal of Chang'an University(Natural Science Edition), 2011, 31(2): 25-28. [14] 郭根胜,王凯,王磊. 寒冷地区风积沙作为路基填料承载力试验研究[J]. 内蒙古农业大学学报(自然科学版), 2014, 35(1): 111-114. GUO Gensheng, WANG Kai, WANG Lei. Research on bearing capacity test of aeolian sand used roadbed filler in cold regions[J]. Journal of Inner Mongolia Agricultural University(Natural Science Edition), 2014, 35(1): 111-114. [15] KARATAI T R, KALULI J W, KABUBO C, et al. Soil stabilization using rice husk ash and natural lime as an alternative to cutting and filling in road construction[J]. Journal of Construction Engineering and Management, 2016, 143(5): 04016127(1-5). [16] MOHAJERANI A, LOUND S, LIASSOS G, et al. Physical, mechanical and chemical properties of biosolids and raw brown coal fly ash, and their combination for road structural fill applications[J]. Journal of Cleaner Production, 2017, 166: 1-11. [17] 杨永红,王选仓,韩国杰,等. 甘肃黄土地区土基回弹模量[J]. 长安大学学报(自然科学版), 2005, 25(3): 7-10. YANG Yonghong, WANG Xuancang, HAN Guojie, et al. Resilient modulus of subgrade in Gansu loess area [J]. Journal of Chang'an University(Natural Science Edition), 2005, 25(3): 7-10. [18] 张翛,赵队家,刘少文,等. 美国路基土回弹模量确定方法研究现状[J]. 重庆交通大学学报(自然科学版), 2012, 31(4): 795-798. ZHANG Xiao, ZHAO Duijia, LIU Shaowen, et al. Research progress on determination of resilient modulus of subgrade soils in U. S.[J]. Journal of Chongqing Jiaotong University(Natural Science), 2012, 31(4): 795-798. [19] 弋晓明,李术才,王松根,等. 非饱和粉土回弹模量的应力依赖性与水敏感性耦合分析[J]. 山东大学学报(工学版), 2013, 43(2): 84-88. YI Xiaoming, LI Shucai, WANG Songgen, et al. Coupling analysis of stress dependence and water sensitivity for the resilient modulus of unsaturated silt soil[J]. Journal of Shandong University(Engineering Science), 2013, 43(2): 84-88. [20] SEED H B, CHAN C K, LEE C E. Resilient characteristics of subgrade soils and their relations to fatigue failures in asphalt pavements[C] //Proceedings of International Conference on the Structural Design of Asphalt Pavements Supplement. Michigan, USA:University of Michigan, 1962: 611-636. [21] 凌建明,陈声凯,曹长伟. 路基土回弹模量影响因素分析[J]. 建筑材料学报,2007, 10(4): 446-451. LING Jianming, CHEN Shengkai, CAO Changwei. Analysis of influence factors on resilient modulus of subgrade soils[J]. Journal of Building Materials, 2007, 10(4): 446-451. [22] 凌建明,苏华才,谢华昌,等. 路基土动态回弹模量的试验研究[J]. 地下空间与工程学报, 2010, 6(5): 919-925. LING Jianming, SU Huacai, XIE Huachang, et al. Laboratory research on dynamic resilient modulus of subgrade soil[J]. Chinese Journal of Underground Space and Engineering, 2010, 6(5): 919-925. [23] ZHANG J H, PENG J H, LIU W Z, et al. Predicting resilient modulus of fine-grained subgrade soils considering relative compaction and matric suction[J]. Road Materials and Pavement Design, 2019: 1-13. [24] SEED H B, MITRY F G, MONOSMITH C L, et al. Prediction of pavement deflection from laboratory repeated load tests(NCHRP Report 35)[R]. Washington, USA: Transportation Research Board, 1967: 22-43. [25] MUNIR D, LOUAY N. Estimation of resilient modulus of subgrade soils using falling weight deflectometer[J]. Transportation Research Record: Journal of the Transportation Research Board, 2010, 2186(1): 1-10. [26] SHABBIR H. Estimation of subgrade resilient modulus for Virginia soil[J]. Transportation Research Record: Journal of the Transportation Research Board, 2009, 2101(1): 98-109. [27] RAMESH B M, SHRADDHA J. Resilient modulus prediction models based on analysis of LTPP data for subgrade soils and experimental verification[J]. Journal of Transportation Engineering, 2007, 133(9): 491-504. [28] 中华人民共和国交通运输部. 公路路基设计规范: JTG D30—2015[S]. 北京: 人民交通出版社, 2015. [29] 中华人民共和国交通运输部. 公路土工试验规程: JTG 3430—2020[S]. 北京: 人民交通出版社, 2020. [30] 罗志刚. 路基与粒料层动态模量参数研究[D]. 上海: 同济大学, 2007. LUO Zhigang. Research on dynamic modulus parameters of subgrade and granular layers[D]. Shanghai: Tongji University, 2007. [31] 陈声凯,凌建明,张世洲. 路基土动态回弹模量室内试验加载序列的确定[J]. 公路, 2006, 11(5): 148-152. CHEN Shengkai, LING Jianming, ZHANG Shizhou. Fixing loading sequence for resilient modulus test of subgrade soil[J]. Highway, 2006, 11(5): 148-152. [32] NCHRP Project 1-28. Laboratory determination of resilient modulus for flexible pavement design-final report[R]. Washington, USA: Transportation Research Board, National Research Council, 1997: 34-56. [33] 洪安宇,杨晓松,党进谦,等. 非饱和氯盐渍土抗剪强度特性试验研究[J]. 长江科学院院报, 2013, 30(4): 52-55. HONG Anyu, YANG Xiaosong, DANG Jinqian, et al. Shear strength property of unsaturated chlorine saline soil[J]. Journal of Yangtze River Scientific Research Institute, 2013, 30(4): 52-55. [34] 陈炜韬,王明年,王鹰,等. 含盐量及含水量对氯盐盐渍土抗剪强度参数的影响[J]. 中国铁道科学, 2006, 27(4): 1-5. CHEN Weitao, WANG Mingnian, WANG Ying, et al. Influence of salt content and water content on the shearing strength parameters of chlorine saline soil[J]. China Railway Science, 2006, 27(4): 1-5. [35] 赵明华,刘小平,彭文祥. 水膜理论在非饱和土中吸力的应用研究[J]. 岩土力学, 2007, 28(7): 1323-1327. ZHAO Minghua, LIU Xiaoping, PENG Wenxiang. Application of aqueous film theory to study of unsaturated soil's suction[J]. Rock and soil Mechanics, 2007, 28(7): 1323-1327. [36] 张宁霞,刘保健,赵丽娅. 氯盐渍土的工程特性研究[J]. 工程勘察,2012, 40(6): 14-17. ZHANG Ningxia, LIU Baojian, ZHAO Liya. Study on engineering characteristics of chlorine saline soil[J]. Geotechnical Investigation & Surveying, 2012, 40(6): 14-17. [37] 李永红. 氯盐渍土的变形和强度特性研究[D].杨凌: 西北农林科技大学, 2006. LI Yonghong. Research on deformation and strength properties of chlorine saline soil[D]. Yangling: Northwest A&F University, 2006. [38] 张莎莎,杨晓华. 粗颗粒盐渍土路基工程[M]. 北京: 人民交通出版社,2019: 95-111. [39] 杨晓华, 张莎莎,刘伟,等. 粗颗粒盐渍土工程特性研究进展[J]. 交通运输工程学报,2020, 20(5): 22-40. YANG Xiaohua, ZHANG Shasha, LIU Wei, et al. Research progress on engineering properties of coarse-grained saline soil[J]. Journal of Traffic and Transportation Engineering, 2020, 20(5): 22-40. [40] 杨少飞. 粗颗粒盐渍土地基溶陷特性研究[D].西安: 西安建筑科技大学, 2020. YANG Shaofei. Study on the collapsibility characteristics of coarse-grained saline soil foundation[D]. Xi'an: Xi'an University of Architecture and Technology, 2020. [41] 廖骏. 含氯盐砂土溶陷特性及其对路基变形的影响研究[D].兰州: 兰州交通大学, 2018. LIAO Jun. Study on the dissolution characteristics of salt sand soil and its influence on the deformation of Roadbed[D]. Lanzhou: Lanzhou Jiaotong University, 2018. [42] 蒋坪临,张建新,王楚楚,等. 循环振动荷载下氯盐渍土的溶陷特性[J]. 深圳大学学报(理工版), 2018, 35(1): 62-69. JIANG Pinglin, ZANG Jianxin, WANG Chuchu, et al. Collapsibility of chlorine saline soil under cyclic vibration load[J]. Journal of Shenzhen University(Science and Engineering), 2018, 35(1): 62-69. [43] 新疆公路学会. 盐渍土地区公路设计与施工指南[M]. 北京: 人民交通出版社, 2006. |
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