工程力学 ›› 2020, Vol. 37 ›› Issue (3): 142-148.doi: 10.6052/j.issn.1000-4750.2019.04.0199

• 土木工程学科 • 上一篇    下一篇

粗粒土静止侧压力系数影响因素试验研究

蒋明杰1,2,3, 朱俊高1,2, 梅国雄3   

  1. 1. 河海大学岩土力学与堤坝工程教育部重点实验室, 江苏, 南京 210098;
    2. 江苏省岩土工程技术工程研究中心, 河海大学, 江苏, 南京 210098;
    3. 广西大学土木建筑工程学院, 广西, 南宁 530004
  • 收稿日期:2019-04-15 修回日期:2019-08-19 出版日期:2020-03-25 发布日期:2019-09-09
  • 通讯作者: 朱俊高(1964-),男,江苏人,教授,博士,主要从事土体基本性质与本构关系、土石坝工程等方面的研究(E-mail:zhujungao@hhu.edu.cn). E-mail:zhujungao@hhu.edu.cn
  • 作者简介:蒋明杰(1990-),男,湖南人,助理教授,博士,主要从事土体基本特性及本构关系、土石坝工程研究(E-mail:18751957312@163.com);梅国雄(1975-),男,湖北人,教授,博士,长江学者,主要从事固结理论和土体基本性质研究(E-mail:meiguox@163.com).
  • 基金资助:
    国家重点研发计划项目(2017YFC0404804);国家自然科学基金项目(51479052,51578164);广西自然科学基金创新研究团队项目(2016GXNSFGA380008)

EXPERIMENTAL STUDY ON INFLUENCE FACTORS OF LATERAL PRESSURE COEFFICIENT AT REST FOR COARSE GRAINED SOIL

JIANG Ming-jie1,2,3, ZHU Jun-gao1,2, MEI Guo-xiong3   

  1. 1. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China;
    2. Geotechnical Research Institute, Hohai University, Nanjing 210098, China;
    3. College of Civil Engineering and Architecture, Guangxi University, Nanning, Guangxi 530004, China
  • Received:2019-04-15 Revised:2019-08-19 Online:2020-03-25 Published:2019-09-09

摘要: 目前,适用于测试粗粒土K0值的试验仪器及方法较少,关于粗粒土K0影响因素的研究几乎空白。为研究分析粗粒土K0影响因素,利用新近研制的大型K0测试仪对某砂卵砾石料进行了大量K0试验。通过改变试样的相对密实度Dr0与颗粒最大粒径dM等初始条件,研究了粗粒土在不同试验条件下K0的变化规律。试验结果表明:粗粒土的Dr0K0存在线性负相关关系;颗粒最大粒径dMK0呈负相关关系,可近似用幂函数表示;K0随着竖向应力σ'v的增加呈减小趋势,而且较低竖向应力下这种趋势显著。

关键词: 静止侧压力系数, 粗粒土, 初始相对密实度, 颗粒最大粒径, 竖向应力

Abstract: At present, there are few apparatuses and methods applicable for measuring K0 of coarse-grained soil, and the relevant research about the effect factors of K0 for coarse-grained soil is almost blank. To investigate the effect factors of K0 for coarse-grained soil, several K0 tests for a sandy gravel were performed by using a newly-developed large-size K0 apparatus. By changing the initial conditions such as initial relative density Dr0 and maximum grain size dM, the K0 behavior of coarse-grained soil under different experimental conditions is investigated. The test data show that:a linear negative correlation exists between K0 and Dr0 for coarse-grained soil; a negative correlation exists between K0 and dM for coarse-grained soil, and the correlation can be expressed by a power function; K0 trends to decrease with the increase of effective vertical stress σ'v, and the effect of σ'v on K0 is more pronounced under low σ'v.

Key words: at-rest earth pressure coefficient, coarse grained soil, initial relative density, maximum grain size, effective vertical stress

中图分类号: 

  • TU43
[1] 刘华北, 汪磊, 王春海, 等. 土工合成材料加筋土挡墙筋材内力分析[J]. 工程力学, 2017, 34(2):1-11. Liu Huabei, Wang Lei, Wang Chunhai, et al. Analysis methods for the reinforcement loads of geosyntheticreinforced soil retaining walls[J]. Engineering Mechanics, 2017, 34(2):1-11. (in Chinese)
[2] Pegah E, Liu H, Dastanboo N. Evaluation of the lateral earth pressure coefficients at-rest in granular soil deposits using the anisotropic components of S-wave velocity[J]. Engineering Geology, 2017, 230:55-63.
[3] Ni P, Song L, Mei G, et al. On predicting displacementdependent earth pressure for laterally loaded piles[J]. Soils and Foundations, 2017, 58(1):85-96.
[4] 应宏伟, 王小刚, 张金红. 考虑基坑宽度影响的基坑抗隆起稳定分析[J]. 工程力学, 2018, 35(5):118-124. Ying Hongwei, Wang Xiaogang, Zhang Jinhong. Analysis on heave-resistant stability considering the effect of excavation width[J]. Engineering Mechanics, 2018, 35(5):118-124. (in Chinese)
[5] 陈金锋, 徐明, 宋二祥, 等. 不同应力路径下石灰岩碎石力学特性的大型三轴试验研究[J]. 工程力学, 2012, 29(8):195-201. Chen Jinfeng, Xu Ming, Song Erxiang, et al. Large scale triaxial testing on mechanical properties of broken limestone under various stress paths[J]. Engineering Mechanics, 2012, 29(8):195-201. (in Chinese)
[6] Brooker E W, Ireland H O. Earth pressures at rest related to stress history[J]. Canadian Geotechnical Journal, 1965, 2(1):1-15.
[7] Mayne P W, Kulhawy F H. K-OCR relationships in soil[J]. Journal of the Geotechnical Engineering Division, 1982, 20(1):851-872.
[8] 李国维, 胡坚, 陆晓岑, 等. 超固结软黏土一维蠕变次固结系数与侧压力系数[J]. 岩土工程学报, 2012, 34(12):2198-2205. Li Guowei, Hu Jian, Lu Xiaoqin, et al. One-dimensional secondary consolidation coefficient and lateral pressure coefficient of over consolidated soft clay[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(12):2198-2205. (in Chinese)
[9] Wanatowski D, Chu J. Stress-strain behavior of a granular fill measured by a new plane-strain apparatus[J]. Astm Geotechnical Testing Journal, 2006, 29(2):149-157.
[10] 王秀艳, 唐益群, 藏逸中, 等. 深层土侧向应力的试验研究及新认识[J]. 岩土工程学报, 2007, 29(3):430-435. Wang Xiuyan, Tang Yiqun, Zang Yizhong, et al. Experimental studies and new ideas on the lateral stress in soil[J]. Chinese Journal of Geotechnical Engineering, 2007, 29(3):430-435. (in Chinese)
[11] Wang J J, Yang Y, Bai J, et al. Coefficient of earth pressure at rest of a saturated artificially mixed soil from oedometer tests[J]. Ksce Journal of Civil Engineering, 2017(1):1-9.
[12] Vardhanabhuti B V, Mesri G M. Coefficient of earth pressure at rest for sands subjected to vibration[J]. Canadian Geotechnical Journal, 2007, 44(10):1242-1263.
[13] Northcutt Sheri, Wijewickreme Dharma. Effect of particle fabric on the coefficient of lateral earth pressure[J]. Canadian Geotechnical Journal, 2013, 50(5):457-466.
[14] Lee J, Yun T S, Lee D, et al. Assessment of K0, correlation to strength for granular materials[J]. Soils & Foundations, 2013, 53(4):584-595.
[15] Lee J, Lee D, Park D. Experimental investigation on the coefficient of lateral earth pressure at rest of silty sands:Effect of fines[J]. Geotechnical Testing Journal, 2014, 37(6):20130204.
[16] Zhu J G, Jiang M J, Lu Y, et al. Experimental study on the coefficient of sandy gravel under different loading conditions[J]. Granular Matter, 2018, 20(3):40.
[17] 朱俊高, 陆阳洋, 蒋明杰, 等. 新型静止侧压力系数试验仪的研制与应用[J]. 岩土力学, 2018, 291(8):362-367. Zhu Jungao, Lu Yangyang, Jiang Mingjie, et al. Development and application of new-type apparatus for K0 test[J]. Rock and Soil Mechanic, 2018, 291(8):362-367. (in Chinese)
[18] Lowe J. Shear strength of coarse embankment dam materials[C]. Proceedings 8th International Congress on Large Dams, 1964:745-761.
[19] 沈靠山. 覆盖层砂卵砾石料静止侧压力系数研究[D]. 南京:河海大学, 2009. Shen Kaoshang. Study of coefficient of earth pressure at rest on gravel soil[D]. Nanjing:Hohai University, 2009. (in Chinese)
[20] Landva A O, Valsangkar A J, Pelkey S G. Lateral earth pressure at rest and compressibility of municipal solid[J]. Canadian Geotechnical Journal, 2000, 37(6):1157-1165.
[21] Lirer S, Flora A, Nicotera M V. Some remarks on the coefficient of earth pressure at rest in compacted sandy gravel[J]. Acta Geotechnica, 2011, 6(1):1-12.
[22] Gu X, Hu J, Huang M. K0 of granular soils:A particulate approach[J]. Granular Matter, 2015, 17(6):703-715.
[23] Wang Y H, Gao Y. Experimental and dem examinations of K0 in sand under different loading conditions[J]. Journal of Geotechnical& Geoenvironmental Engineering, 2014, 140(5):04014012.
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[4] 陈希哲. 粗粒土的强度与咬合力的试验研究[J]. 工程力学, 1994, 11(4): 56-63.
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