冻结黏土动态力学特性的SHPB试验研究

刘志强; 柳家凯; 王博; 张洪乐; 李幸福

doi:10.11779/CJGE201403002

冻结黏土动态力学特性的SHPB试验研究 English Version

刘志强^1,2,,
柳家凯^{1, 2},
王博^{1, 2},
张洪乐³,
李幸福^{1, 2}

1. 中国矿业大学力学与建筑工程学院,江苏徐州 221116; 2. 中国矿业大学深部岩土力学与地下工程国家重点实验室,江苏徐州 221116; 3. 徐州中国矿大岩土工程新技术发展有限公司,江苏徐州 221008

基金项目: 973计划课题（2012CB026103）

详细信息

作者简介:
刘志强(1964- )，男，江苏靖江人，博士，教授，博士生导师，主要从事土木工程专业矿井建设方面的科研与教学工作。E-mail: liuzqcumt@163.com。

通讯作者:
刘志强

中图分类号: TU411.8
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出版历程
- 收稿日期: 2013-04-07
- 发布日期: 2014-03-19

Dynamic characteristics of frozen clay by using SHPB tests

LIU Zhi-qiang^1,2,,
LIU Jia-kai^{1, 2},
WANG Bo^{1, 2},
ZHANG Hong-le³,
LI Xing-fu^{1, 2}

1. School of Mechanics and Civil Engineering, China University of Mining and Technology (CUMT), Xuzhou 221116, China; 2. State Key Laboratory for Geomechanics and Deep Underground Engineering, CUMT, Xuzhou 221116, China; 3. CUMT Geotechnical Engineering & New Technology Development Co., Ltd., Xuzhou 221008, China

摘要

摘要: 通过使用分离式霍普金森压杆（Split Hopkinson Pressure Bar,简称SHPB）动力学试验,系统研究了不同应变率、不同温度和不同含水率条件下冻结黏土的动态力学特性,获得了冻结黏土的动态应力-应变关系以及相关冻土动力学参数的变化规律。试验结果表明：冻土具有明显温度效应和应变率效应,随着应变率的增加和温度的降低,冻土破坏过程从塑性破坏逐渐转变为脆性破坏。在冲击荷载作用下,冻土的动态应力-应变关系曲线随加载应变率的不同呈现3种典型曲线,冻土的最大应变与且仅与应变率呈线性递增规律；单一因素影响下,冻土的动强度、动弹性模量均随应变率的增大、温度的降低和未超过饱和状态的含水率的增大而增加。
- 冻结黏土 /
- 冲击荷载 /
- SHPB试验 /
- 动力学参数
Abstract: Based on the Split Hopkinson Pressure Bar (SHPB) tests, dynamic characteristics of frozen clay with various low temperatures and water contents at different strain rates are studied. Variations of dynamic parameters and dynamic stress-strain curves of frozen clay are obtained and analyzed. The results of SHPB tests show that the frozen clay exhibits temperature effect and strain rate effect, and that the failure type tends to change from plastic failure to brittle one with the increase of the strain rate or the decrease of the temperature. Under impact load, the frozen clay exhibits three typical dynamic stress-strain curves as the strain rate increases, and the maximum strain of the frozen clay only linearly increases with the strain rate. The increase of strain rate and water content () and the decrease of temperature result in an increase in both the dynamic strength and elastic modulus of the frozen clay considering the effect of a single factor.
- frozen clay /
- impact load /
- SHPB test /
- dynamic parameter

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参考文献(22)

[1]	马芹永. 人工冻土动态力学特性研究现状及意义[J]. 岩土力学, 2009, 30(增刊): 10-14. (MA Qin-yong. Research status of dynamic properties of artificial frozen soil and its significance[J]. Rock and Soil Mechanics, 2009, 30(S0): 10-14. (in Chinese))
[2]	何平, 朱元林, 张家懿, 等. 饱和冻结粉土的动弹模与动强度[J]. 冰川冻土, 1993, 15(1): 170-174. (HE Ping, ZHU Yuan-lin, ZHANG Jia-yi, et al. Dynamic elastic modulus and dynamic strength of saturated frozen silt[J]. Journal of Glaciology and Geocryology, 1993, 15(1): 170-174. (in Chinese))
[3]	沈忠言, 张家懿. 冻结粉土的动强度特性及其破坏准则[J]. 冰川冻土, 1997, 19(2): 141-148. (SHEN Zhong-yan, ZHANG Jia-yi. Dynamic strength characteristics and failure criterion of frozen silt[J]. Journal of Glaciology and Geocryology, 1997, 19(2): 141-148. (in Chinese))
[4]	徐学燕, 仲丛利, 陈亚明, 等. 冻土的动力特性研究及其参数的确定[J]. 岩土工程学报, 1998, 20(5): 77-81. (XU Xue-yan, ZHONG Cong-li, CHEN Ya-ming, et al. Research on dynamic characters of frozen soil and determination of its parameters[J]. Chinese Journal of Geotechnical Engineering, 1998, 20(5): 77-81. (in Chinese))
[5]	马巍, 常小晓. 加载卸载对人工冻结土强度与变形的影响[J]. 岩土工程学报, 2001, 23(5): 536-566. (MA Wei, CHANG Xiao-xiao. Influence of loading and unloading on strength and deformation of frozen soil[J]. Chinese Journal of Geotechnical Engineering, 2001, 23(5): 563-566. (in Chinese))
[6]	吴志坚, 王兰民, 马巍, 等. 地震荷载作用下冻土的动力学参数试验研究[J]. 西北地震学报, 2003, 25(3): 210-214. (WU Zhi-jian, WANG Lan-min, MA Wei, et al. Laboratory study on dynamics parameters of frozen soil under seismic dynamic loading[J]. Northwestern Seismological Journal, 2003, 25(3): 210-214. (in Chinese))
[7]	吴志坚, 马巍, 王兰民, 等. 地震荷载作用下温度和围压对冻土强度影响的试验研究[J]. 冰川冻土, 2003, 25(6): 648-652. (WU Zhi-jian, MA Wei, WANG Lan-min, et al. Laboratory study on the effect temperature and confining pressure on strength of frozen soil under seismic dynamic loading[J]. Journal of Glaciology and Geocryology, 2003, 25(6): 648-652. (in Chinese))
[8]	赵淑萍, 朱元林, 何平, 等. 冻土动力学参数测试研究[J]. 岩石力学与工程学报, 2003, 22(增刊2): 2677-2681. (ZHAO Shu-ping, ZHU Yuan-lin, HE Ping, et al. Testing study on dynamic mechanics parameters of frozen soil[J]. Chinese Journal of Rock Mechanics and Engineering, 2003, 22(S2): 2677-2681. (in Chinese))
[9]	张淑娟, 赖远明, 李双洋, 等. 冻土动强度特性试验研究[J]. 岩土工程学报, 2008, 30(4): 595-598. (ZHANG Shu-juan, LAI Yuan-ming, LI Shuang-yang, et al. Dynamic strength of frozen soils[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(4): 595-598. (in Chinese))
[10]	朱占元, 李静, 邹祖银, 等. 动力荷载作用下冻土变形特性研究[J]. 低温建筑技术, 2008(2): 112-114. (ZHU Zhan-yuan, LI Jing, ZOU Zu-yin, et al. Study on deformation characters of frozen soil under long-term dynamic loading[J]. Low Temperature Architecture Technology, 2008(2): 112-114. (in Chinese))
[11]	高志华, 石坚, 张淑娟, 等. 高含冰量冻土动强度和残余应变的试验研究[J]. 冰川冻土, 2009, 31(6): 1143-1149. (GAO Zhi-hua, SHI Jian, ZHANG Shu-juan, et al. Experimental study of the dynamic strength characteristics and residual strain of ice-rich frozen soil[J]. Journal of Glaciology and Geocryology, 2009, 31(6): 1143-1149. (in Chinese))
[12]	霍明, 汪双杰, 章金钊, 等. 含水率和温度对高含冰量冻土力学性质的影响[J]. 水利学报, 2010, 41(10): 1165-1172 (HUO Ming, WANG Shuang-jie, ZHANG Jin-zhao, et al. Experimental study on influences of water content and temperature on mechanical properties of ice-rich frozen soil[J]. Journal of Hydraulic Engineering, 2010, 41(10): 1165-1172. (in Chinese))
[13]	凌贤长, 徐学燕, 徐春华, 等. 冻结哈尔滨粉质黏土超声波速测定试验研究[J]. 岩土工程学报, 2002, 24(4): 456-459. (LING Xian-chang, XU Xue-yan, XU Chun-hua, et al. Study on frozen Harbin silty clay through its measuring tests of ultrasonic velocity[J]. Chinese Journal of Geotechnical Engineering, 2002, 24(4): 456-459. (in Chinese))
[14]	王大雁, 朱元林, 赵淑萍, 等. 超声波法测定冻土动弹性力学参数试验研究[J]. 岩土工程学报, 2002, 24(5): 612-615. (WANG Da-yan, ZHU Yuan-lin, ZHAO Shu-ping, et al. Study on experiment determination of the dynamic elastic mechanical parameters of frozen soil by ultrasonic technique[J]. Chinese Journal of Geotechnical Engineering, 2002, 24(5): 612-615. (in Chinese))
[15]	姚博, 刘志强, 王博, 等. 超声纵波测量冻土动弹性模量的试验研究[J]. 中国建材科技, 2009(3): 85-88. (YAO Bo, LIU Zhi-qiang, WANG Bo, et al. Experimental study of ultrasonic longitudinal wave measuring dynamic elastic modulus of frozen soil[J]. China Building Materials Science & Technology, 2009(3): 85-88. (in Chinese))
[16]	俞祁浩, 朱元林, 张健民, 等. 冲击速度对冻土冲击韧度的影响[J]. 岩土工程学报, 1997, 19(4): 21-24. (YU Qi-hao, ZHU Yuan-lin, ZHANG Jian-min, et al. Effect of pendulum speed on impact toughness of frozen soil[J]. Chinese Journal of Geotechnical Engineering, 1997, 19(4): 21-24. (in Chinese))
[17]	LEE Moo Y, ARLO Fossum, LAURENCE S Costin, et al. Frozen soil material testing and constitutive modeling[R]. Sandia Report, SAND, 2002-0524.
[18]	马芹永, 张志红, 蔡美峰. 冻土冲击韧度与凿碎比能关系的试验研究[J]. 岩土力学, 2004, 25(1): 54-58. (MA Qin-yong, ZHANG Zhi-hong, CAI Mei-feng. Experimental research on relationship between impact toughness and impact penetrant specific energy of frozen soil[J]. Rock and Soil Mechanics, 2004, 25(1): 54-58. (in Chinese))
[19]	陈柏生, 胡时胜, 马芹永, 等. 冻土动态力学性能的实验研究[J]. 力学学报, 2005, 37(6): 724-728. (CHEN Bo-sheng, HU Shi-sheng, MA Qin-yong, et al. Experimental research of dynamic mechanical behaviors of frozen soil[J]. Chinese Journal of Theoretical and Applied Mechanics, 2005, 37(6): 724-728. (in Chinese))
[20]	陶俊林, 田常津, 陈裕泽, 等. SHPB 系统试件恒应变率加载实验方法研究[J]. 爆炸与冲击, 2004, 24(5): 413-418. (TAO Jun-lin, TIAN Chang-jin, CHEN Yu-ze, et al. Investigation of experimental method to obtain constant strain rate of specimen in SHPB[J]. Explosion and Shock Waves, 2004, 24(5): 413-418. (in Chinese))
[21]	王大雁, 马巍, 常小晓, 等. 模拟人工冻结凿井状态下冻土强度特性研究[J]. 冰川冻土, 2002, 24(2): 168-172. (WANG Da-yan, MA Wei, CHANG Xiao-xiao, et al. Study on the strength characteristics of frozen soil in artificial freezing sinking[J]. Journal of Glaciology and Geocryology, 2002, 24(2): 168-172. (in Chinese))
[22]	何平, 程国栋, 杨成松, 等. 非饱和冻土的强度分析[J]. 冰川冻土, 2002, 24(3): 260-263. (HE Ping, CHENG Guo-dong, YANG Cheng-song, et al. Analysis of strength of unsaturated frozen soil[J]. Journal of Glaciology and Geocryology, 2002, 24(3): 260-263. (in Chinese))

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