珊瑚礁砂砾料力学行为与颗粒破碎的试验研究

王刚; 叶沁果; 查京京

doi:10.11779/CJGE201805004

珊瑚礁砂砾料力学行为与颗粒破碎的试验研究 English Version

王刚^{1, 2},
叶沁果^{1, 2},
查京京^{1, 2}

1. 山地城镇建设与新技术教育部重点实验室（重庆大学）,重庆 400045;
2. 重庆大学土木工程学院,重庆 400045

详细信息

作者简介:
王刚（1978- ）,男,博士,教授,主要从事土的本构理论、土动力学及地震工程、数值分析等方面的研究工作。E-mail: cewanggang@163.com。

计量
- 文章访问数: 0379
- HTML全文浏览量: 0
- PDF下载量: 0288
出版历程
- 修回日期: 2017-03-13
- 发布日期: 2018-05-24

Experimental study on mechanical behavior and particle crushing of coral sand-gravel fill

WANG Gang^{1, 2},
YE Qin-guo^{1, 2},
ZHA Jing-jing^{1, 2}

1. Key Laboratory of New Technology for Construction of Cities in Mountain Area (Chongqing University), Ministry of Education, Chongqing 400045, China;
2. School of Civil Engineering, Chongqing University, Chongqing 400045, China

摘要

摘要: 珊瑚礁砂砾石是中国南海岛礁建设的主要填料,因为特殊的生物成因和多孔隙的颗粒结构,极易产生颗粒破碎。对取自南海某岛礁的珊瑚礁砂砾石填料开展了大型压缩试验、三轴排水剪切试验和三轴不排水剪切试验,研究了压缩指数、杨氏模量、剪胀和强度等基本工程力学指标与颗粒破碎的变化规律。在相同的压缩作用下,疏松试样比密实试样的颗粒破碎程度更大。颗粒破碎程度随着压力的增大而显著增大,导致珊瑚礁砂砾料的压缩模量和杨氏模量随压力的增大增幅不明显,峰值摩擦角和临界状态摩擦角随压力的增高而显著降低。颗粒破碎过程具有明显的应力路径和应力历史依赖性,有无预压作用的相同密度的试样表现出显著不同的压缩特性,相同密度和初始压力的试样在排水和不排水剪切下也表现出明显不同的剪胀和强度特性。峰值摩擦角依赖于应力路径和颗粒破碎的演化过程;临界状态摩擦角与最终的颗粒破碎指标值有较好的相关性,与颗粒破碎的产生过程无关。
- 钙质砂砾料 /
- 颗粒破碎 /
- 模量 /
- 摩擦角 /
- 相对破碎指数
Abstract: The coral sand and gravel are used as the main source of reclamation fill in the island construction of the South China Sea. Due to their biological origin, the grains of coral sand-gravel fill are porous and prone to breakage. A series of large-scale compression tests, triaxial drained and undrained shear tests are conducted on a typical coral sand-gravel fill from the South China Sea, and the basic mechanical properties such as compression index, Yang’s modulus, shear-dilatancy and strength parameters as well as particle crushing characteristics of the coral sand-gravel fill are studied. Under the compression, the particle crushing of a loose sample is more serious than that of a dense sample. Particle crushing increases with the increasing pressure, in result, the compressive modulus and Young's modulus increase little, and the peak friction angle and the critical state friction angle decrease significantly as the pressure increases. The particle crushing has a strong dependency on stress path and history. The samples with the same density but different pre-compression histories exhibit significantly different responses under compression. The samples with the same density and initial pressure also show different dilatant tendency and strength characteristics under drained and undrained triaxial shearing. The peak friction angle depends on the stress path and the evolution process of particle crushing, and the critical state friction angle can be well correlated to a particle breakage index in the final state, implying that it is independent of the intermediate evolution process of particle crushing.
- coral sand-gravel fill /
- particle breakage /
- modulus /
- friction angle /
- relative breakage index

HTML全文

参考文献(23)

[1]	JEWELL RJ , ANDREWS DC. Engineering for calcareous sediments[M]. Rotterdam: AA Balkema, 1988.
[2]	沈建华, 汪稔. 钙质砂的工程性质研究进展及展望[J]. 工程地质学报, 2010, 18(增刊): 26-32. (SHEN Jian-hua, WANG Ren. Study on engineering properties of calcareous sand[J]. Journal of Engineering Geology, 2010, 18(S0): 26-32. (in Chinese))
[3]	COOP M R. The mechanics of uncemmented carbonate sands[J]. Géotechnique. 1990, 40(4): 607-626.
[4]	COOP M R, SORENSEN K K, BODAS T, et al. Particle breakage during shearing of a carbonate sand[J]. Géotechnique, 2004, 54(3): 157-163.
[5]	吴京平, 褚瑶, 楼志刚. 颗粒破碎对钙质砂变形及强度特性的影响[J]. 岩土工程学报, 1997, 19(5): 51-57. (WU Jing-ping, CHU Yao, LOU Zhi-gang. Influence of particle breakage on deformation and strength properties of calcareous sands[J]. Chinese Journal of Geotechnical Engineering, 1997, 19(5): 51-57. (in Chinese))
[6]	陈海洋, 汪稔, 李建国, 等. 钙质砂颗粒的形状分析[J]. 岩土力学, 2005, 26(9): 1389-1392. (CHEN Hai-yang, WANG Ren, LI Jian-guo, et al. Grain shape analysis of calcareous soil[J]. Rock and Soil Mechanics, 2005, 26(9): 1389-1392. (in Chinese))
[7]	张家铭, 汪稔, 石祥锋, 等. 侧限条件下钙质砂压缩和破碎特性试验研究[J]. 岩石力学与工程学报, 2005, 24(18): 3327-3331. (ZHANG Jia-ming, WANG Ren, SHI Xiang-feng, et al. Compression and crushing behavior of calcareous sand under confined compression[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(18): 3327-3331. (in Chinese))
[8]	张家铭, 张凌, 蒋国盛, 等. 剪切作用下钙质砂颗粒破碎试验研究[J]. 岩土力学, 2008, 29(10): 2789-2793. (ZHANG Jia-ming, ZHANG Lin, JIANG Guo-sheng, et al. Research on particle crushing of calcareous sands under triaxial shear[J]. Rock and Soil Mechanics, 2008, 29(10): 2789-2793. (in Chinese))
[9]	TARANTINO A, HYDE A F L. An experimental investigation of work dissipation in crushable materials[J]. Géotechnique, 2005, 55(8): 575-584.
[10]	VALDES J R, KOPRULU E. Internal stability of crushed sands: experimental study[J]. Géotechnique, 2008, 58(8): 615-622.
[11]	DONOHUE S, O’SULLIVAN C, LONG M. Particle breakage during cyclic triaxial loading of a carbonate sand[J]. Géotechnique, 2009, 59(5): 477-482.
[12]	PESTANA J M, WHITTLE A J. Compression model for cohesionless soils[J]. Géotechnique, 1995, 45(4): 611-631.
[13]	BASTIDAS P A M. Ottawa F-65 sand characterization[D]. Davis: University of California, Davis, 2016.
[14]	孔德志, 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))
[15]	BEEN K, JEFFERIES M G, HACHEY J. The critical state of sands[J]. Géotechnique, 1991, 41(3): 365-381.
[16]	MCDOWELL G R, BOLTON M D, ROBERTSON D. The fractal crushing of granular materials[J]. Journal of the Mechanics and Physics of Solids, 1996, 44(12): 2079-2102.
[17]	VESIC A S, CLOUGH G W. Behavior of granular materials under high stresses[J]. Journal of Soil Mechanics and Foundation Division, ASCE, 1968, 94(SM3): 661-688.
[18]	NAKATA Y, HYODO M, HYDE A F L, et al. Microscopic particle crushing of sand subjected to high pressure one-dimensional compression[J]. Soils and Foundations, 2001, 41(1): 69-82.
[19]	贾宇峰, 王丙申, 迟世春. 堆石料剪切过程中的颗粒破碎研究[J]. 岩土工程学报, 2015, 37(9): 1692-1697. (JIA Yu-feng, WANG Bing-shen, CHI Shi-chun. Particle breakage of rockfill during triaxial tests[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(9): 1692-1697. (in Chinese))
[20]	HARDIN B O. Crushing of soil particles[J]. Journal of Geotechnical Engineering, ASCE, 1985, 111(10): 1177-1192.
[21]	郭熙灵, 胡辉, 包承纲. 堆石料颗粒破碎对剪胀性及抗剪强度的影响[J]. 岩土工程学报, 1997, 19(3): 83-88. (GUO Xi-ling, HU Hui, BAO Cheng-gang. Experimental studies of the effects of grain breakage on the dilatancy and shear strength of rock fill[J]. Chinese Journal of Geotechnical Engineering, 1997, 19(3): 83-88. (in Chinese))
[22]	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))
[23]	SADREKARIMI A, OLSON S M. Critical state friction angle of sands[J]. Géotechnique, 2011, 61(9): 771-783.

施引文献(11)

期刊类型引用(8)

1.	李珍玉，单世杰，林坤，朱航. 微生物促进矿物相变及其改良膨胀土胀缩特性试验研究. 岩石力学与工程学报. 2025(01): 209-220 . 百度学术
2.	朱文羲，邓华锋，李建林，马林建，李锦瑞，陈勇琪，陈向阳. 干湿循环作用下微生物改良花岗岩残积土劣化规律研究. 岩石力学与工程学报. 2025(02): 482-491 . 百度学术
3.	史金权，付贵永，刘汉龙，肖杨. 微生物加固模拟月壤强度特性试验研究. 土木与环境工程学报(中英文). 2025(02): 20-29 . 百度学术
4.	胡雯璐，刘鹏. 脲酶喷洒工艺对赤泥矿化胶结及抑尘效果试验. 林业工程学报. 2025(02): 173-179 . 百度学术
5.	汤禹，付俊，陈安，周罕，张宇，罗磊. 改进灌注方式下MICP固化尾矿中重金属形态特征及风险评价. 中国环境科学. 2025(03): 1385-1394 . 百度学术
6.	柳嘉豪，林文彬，卓祖磊，吴杉颖，高玉朋，张佳源，罗承浩. 微生物诱导碳酸钙沉淀技术固化海相淤泥试验. 福建理工大学学报. 2025(01): 33-39 . 百度学术
7.	王东星，许凤丽，泮晓华，商武锋，吴章平，郭克诚. GGBS-MICP协同固化淤泥质砂土工程特性研究. 岩石力学与工程学报. 2025(05): 1349-1362 . 百度学术
8.	何文杰，郑文杰，谢毅鑫，薛中飞，秦鹏，吕鑫江. 基于纳米羟基磷灰石的矿化技术修复铅污染水和一维土柱的试验研究. 土木工程学报. 2024(11): 45-56 . 百度学术

其他类型引用(3)

资源附件(0)

计量

文章访问数:
HTML全文浏览量: 0
PDF下载量:
被引次数: 11

珊瑚礁砂砾料力学行为与颗粒破碎的试验研究 English Version

作者简介: 王 刚（1978- ）,男,博士,教授,主要从事土的本构理论、土动力学及地震工程、数值分析等方面的研究工作。E-mail: cewanggang@163.com。

计量

出版历程

Experimental study on mechanical behavior and particle crushing of coral sand-gravel fill

期刊类型引用(8)

其他类型引用(3)

计量

出版历程

目录

作者简介:
王刚（1978- ）,男,博士,教授,主要从事土的本构理论、土动力学及地震工程、数值分析等方面的研究工作。E-mail: cewanggang@163.com。