基于裂离参量的粒状土颗粒破碎量化方法

徐日庆; 畅帅; 李雪刚; 陆建阳

基于裂离参量的粒状土颗粒破碎量化方法 English Version

徐日庆^1,2,
畅帅^1,2,
李雪刚^1,2,
陆建阳^1,2

1. 浙江大学滨海和城市岩土工程研究中心，浙江杭州 310058；
2. 浙江大学软弱土与环境土工教育部重点实验室，浙江杭州310058

基金项目: 国家自然科学基金项目（51178420）

详细信息

作者简介:
徐日庆(1962-)，男，浙江金华人，博士，教授，从事土的本构关系方面的研究。E-mail:xurq@zju.edu.cn。

中图分类号: TU411
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- 文章访问数: 305
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出版历程
- 收稿日期: 2013-05-14
- 发布日期: 2013-11-30

Quantitative method for crushing of granular soils based on discarding parameters

1. Research Center of Coastal and Urban Geotechnical Engineering, Zhejiang University, Hangzhou 310058, China;
2.Key Laboratory of Soft Soils and Geoenvironmental Engineering, Ministry of Education, Zhejiang University, Hangzhou 310058, China

摘要

摘要: 以粒组为分析对象,将颗粒破碎引起粒状土级配变化的过程划分为3个阶段。在此基础上,针对单个粒组与粒状土整体的颗粒破碎情况分别提出了裂离比R_k与加权裂离率B_d的新概念。在进行等比级数简化假设的基础上,给出了两者的计算方法。研究已有文献中搜集的21组颗粒破碎试验资料发现：在所研究的围压范围内,对于不同粒状土材料,B_d-均呈现出线性关系。且对于多数试验结果,该关系存在一个明显的斜率折点。综合考虑围压、母岩强度与原始级配对B_d的影响发现,对于灰岩、角砾岩、砂岩料等不同粒状土材料,B_d的变化规律具有归一性。整理已有试验资料中不同粒状土的加权裂离率B_d与破碎率B_g发现,B_d与B_g间存在一定的指数化关系。最后通过优势分析,指出基于裂离参量的粒状土颗粒破碎量化方法有其自身的特点与优势,具备广阔的研究前景。
- 粒状土 /
- 颗粒破碎 /
- 裂离比 /
- 加权裂离率
Abstract: Taking fraction as analysis object, the crushing of granular soils is divided into three stages. Based on this, new concepts of discarding ratio R_k and weighted discarding ratio B_dare proposed for the crushing of a single fraction and granular soils as a whole respectively. And their theoretical computing methods are put forward based on the simplified hypothesis of geometric progressional distribution. By investigating the collected test data of particle crushing for 21 granular soil samples from references, it is found that the relationship between B_d and #x003c3;₃ is linear for different granular soils with varying values of #x003c3;₃ in research ranges. In addition, there exist significant turning points of slope in such linear relationship for most test results. Considering the combined effects of confining pressure, strength of mother rock and original grain composition, it is concluded that the variation of B_dis generalized for the particle breakage of limestone, breccia and sandstone. By sorting out the weighted discarding ratio B_d and the breakage factor B_g of the collected test results for different granular soil samples, it is indicated that the relationship between B_d and B_g is exponential. Finally, it is pointed out that the proposed quantitative method for the crushing of granular soils based on the discarding parameters has its own characteristics and advantages, which has broad research prospects.
- granular soil /
- particle breakage /
- discarding ratio /
- weighted discarding ratio

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参考文献(20)

[1]	尹振宇, 许强, 胡伟. 考虑颗粒破碎效应的粒状材料本构研究: 进展及发展[J]. 岩土工程学报, 2012, 34(12): 2170–2180. (YIN Zhen-yu, XU Qiang, HU Wei. Constitutive relations for granular materials considering particle crushing: review and development[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(12): 2170–2180. (in Chinese))
[2]	魏松, 朱俊高, 钱七虎, 等. 粗粒料颗粒破碎三轴试验研究[J]. 岩土工程学报, 2009, 31(4): 533–538. (WEI Song, ZHU Jun-gao, QIAN Qi-hu et al. Particle breakage of coarse-grained materials in triaxial tests[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(4): 533–538. (in Chinese))
[3]	孙德志, 张丙印, 孙逊. 人工模拟堆石料颗粒破碎应变的三轴试验研究[J]. 岩土工程学报, 2009, 31(3): 464–469. (KONG De-zhi, ZHANG Bing-yin, SUN Xun. Triaxial tests on particle breakage strain of artificial rockfill materials[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(3): 464–469. (in Chinese))
[4]	刘恩龙, 陈生水, 李国英, 等. 堆石料的临界状态与考虑颗粒破碎的本构模型[J]. 岩土力学, 2011, 32(增刊2): 148–154. (LIU En-long, CHEN Sheng-shui, LI Guo-ying et al. Critical state of rockfill materials and a constitutive model considering grain crushing[J]. Rock and Soil Mechanics, 2011, 32(S2): 148–154. (in Chinese))
[5]	贾宇峰, 迟世春, 林皋. 考虑颗粒破碎的粗粒土剪胀性统一本构模型[J]. 岩土力学, 2010, 31(5): 1381–1388. (JIA Yu-feng, CHI Shi-chun, LIN Gao. Dilatancy unified constitutive model for coarse granular aggregates incorporating particle breakage[J]. Rock and Soil Mechanics, 2010, 31(5): 1381–1388. (in Chinese))
[6]	KARIMPOUR H, LADE P V. Time effects relate to crushing in sand[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2010, 136(9): 1209–1219.
[7]	KUWAJIMA K, HYODO M, HYDE A F. Pile bearing capacity factors and soil crushabiity[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2009, 135(7): 901–913.
[8]	MARSAL R J. Large-scale testing of rockfill materials[J]. Journal of the Soil Mechanics and Foundations Division, 1967, 93(2): 27–43.
[9]	LEE K L, FARHOOMAND I. Compressibility and crushing of granular soil in anisotropic triaxial compression[J]. Canadian Geotechnical Journal, 1967, 4(1): 68–86.
[10]	HARDIN C S. Crushing of soil particles[J]. Journal of Geotechnical Engineering, ASCE, 1985, 111(10): 1177–1192.
[11]	LADE P V, YAMAMURO J A, BOPP P A. Significance of particle crushing in granular materials[J]. Journal of Geotechnical Engineering ASCE, 1996, 122(4): 309–316.
[12]	FUKUMOTO T. A grading equation for decomposed granite soil[J]. Soils and Foundations, 1990, 30(1): 27–34.
[13]	刘萌成, 高玉峰, 刘汉龙. 模拟堆石料颗粒破碎对强度变形的影响[J]. 岩土工程学报, 2011, 33(11): 1691–1699. (LIU Meng-cheng, GAO Yu-feng, LIU Han-long. Effect of particle breakage on strength and deformation of modeled rockfills[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(11): 1691–1699. (in Chinese))
[14]	石修松, 程展林. 堆石料颗粒破碎的分形特性[J]. 岩石力学与工程学报, 2010, 29(增刊2): 3852–3857. (SHI Xiu-song, CHENG Zhan-lin. Fractal behavior in crushing of rockfill material[J]. Chinese Journal of Rock Mechanics and Engineering, 2010, 29(S2): 3852–3857. (in Chinese))
[15]	陈生水, 韩华强, 傅华. 循环荷载下堆石料应力变形特性研究[J]. 岩土工程学报, 2010, 32(8): 1151–1157. (CHEN Sheng-shui, HAN Hua-qiang, FU Hua. Stress and deformation behaviors of rockfill under cyclic loadings[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(8): 1151–1157. (in Chinese))
[16]	凌华, 傅华, 韩华强, 等. 颗粒破碎对堆石料静动力特性影响的试验研究[J]. 水利与建筑工程学报, 2010, 8(4): 44–47. (LING Hua, FU Hua, HAN Hua-qiang, et al. Experimental study on effects of particle breakage on static and dynamic characteristics of rock-fill materials[J]. Journal of Water Resources and Architectural Engineering, 2010, 8(4): 44–47. (in Chinese))
[17]	傅华, 凌华, 蔡正银. 粗颗粒土颗粒破碎影响因素试验研究[J]. 河海大学学报(自然科学版), 2009, 37(1): 75–79. (FU Hua, LIN Hua, CAI Zheng-yin. Influencing factors for particle breakage of coarse grained soil[J]. Journal of Hohai University (Natural Sciences), 2009, 37(1): 75–79. (in Chinese))
[18]	高玉峰, 张兵, 刘伟, 等. 堆石料颗粒破碎特征的大型三轴试验研究[J]. 岩土力学, 2009, 30(5): 1237–1246. (GAO Yu-feng, ZHANG Bing, LIU Wei, et al. Experimental study on particle breakage behavior of rockfills in large-scale triaxial tests[J]. Rock and Soil Mechanics, 2009, 30(5): 1237–1246. (in Chinese))
[19]	刘汉龙, 秦红玉, 高玉峰, 等. 堆石粗粒料颗粒破碎试验研究[J]. 岩土力学, 2005, 26(4): 562–566. (LIU Han-long, QIN Hong-yu, GAO Yu-feng, et al. Experimental study on particle breakage of rockfill and coarse aggregates[J]. Rock and Soil Mechanics, 2005, 26(4): 562–566. (in Chinese))
[20]	刘汉龙, 孙逸飞, 杨贵, 等. 粗粒料颗粒破碎特性研究述评[J].河海大学学报(自然科学版), 2012, 40(4): 361–369. (LIU Hanl-ong, SUN Yi-fei, YANG Gui, et al. A review of particle breakage characteristics of coarse aggregates[J]. Journal of Hohai University(Natural Sciences), 2012, 40(4): 361–369. (in Chinese))

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基于裂离参量的粒状土颗粒破碎量化方法 English Version

作者简介: 徐日庆(1962-)，男，浙江金华人，博士，教授，从事土的本构关系方面的研究。E-mail:xurq@zju.edu.cn。

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Quantitative method for crushing of granular soils based on discarding parameters

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目录

作者简介:
徐日庆(1962-)，男，浙江金华人，博士，教授，从事土的本构关系方面的研究。E-mail:xurq@zju.edu.cn。