Journal of Jilin University(Earth Science Edition) ›› 2017, Vol. 47 ›› Issue (3): 839-847.doi: 10.13278/j.cnki.jjuese.201703204

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Experimental Study on Porosity Characteristics of Loess Under Freezing-Thawing Cycle

Zhang Ze1, Zhou Hong2,3, Qin Qi3,4, Bing Hui1, Wu Junjie1, Zhou Panfeng5   

  1. 1. State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;
    2. Shanghai Jianke Engineering Consulting Co., Ltd., Shanghai 200032, China;
    3. College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, China;
    4. Shanghai Puqiao Engineering Construction Management Co., Ltd., Shanghai 200032, China;
    5. Guangzhou Academy of Nuclear Engineering Investigation, Guangzhou 510800, China
  • Received:2016-09-07 Online:2017-05-26 Published:2017-05-26
  • Supported by:
    Supported by National Natural Science Foundation of China (41301070,41401087,4101072), the Scientific and Technical Projects of the Transport Department of Gansu Province (2014-03) and Open Fund Project of Qinghai Traffic Science Research Institute (2016-01-04)

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Abstract: Shaanxi Fuping remolded loess was taken as the studied object. Mercury instrusion porosimetry was used to research the porosity characteristics of loess after different freezing-thawing cycles to get the changing rule of the distribution of loess porosity. Test results showed that rearrangement of the soil particles occurred under freezing-thawing cycle, and pore structure changed. At the same time, the number of pores with small size (especially pores of 0.01-0.10 μm) gradually decreased, and the number of pores with large size (especially pores of 5.00-10.00 μm) increased. During the first 10 cycles, the change in pore size distribution was unstable, and with the increase in freezing-thawing cycles, it became clearly. Porosity increased with the increasing freezing-thawing cycles, and reached its peak value after only 8 freezing-thawing cycles, and then it decreased and became stable after 50 cycles. Finally, according to test results and pore fractal dimension, the inhomogeneity and complexity of pore were decreased by the freezing-thawing cycle.

Key words: loess, freezing-thawing cycle, mercury intrusion method, pore distribution, pore fractal

CLC Number: 

  • P642.131
[1] 方丽莉, 齐吉琳, 马巍. 冻融作用对土结构性的影响及其导致的强度变化[J]. 冰川冻土, 2012, 34(2): 435-440. Fang Lili, Qi Jilin, Ma Wei. Freeze-Thaw Induced Changes in Soil Structure and Its Relationship with Variations in Strength[J]. Journal of Glaciology and Geocryology, 2012, 34(2): 435-440.
[2] 张英, 邴慧. 基于压汞法的冻融循环对土体孔隙特征影响的试验研究[J]. 冰川冻土, 2015, 37(1): 169-174. Zhang Ying, Bing Hui. Experimental Study of the Effect of Freezing-Thawing Cycles on Porosity Characters of Silty Clay by Using Mercury Intrusion Porosimetry[J]. Journal of Glaciology and Geocryology, 2015, 37(1): 169-174.
[3] 郑飞. 不同压实度黏性土微细观孔隙结构研究及分形表征[D]. 武汉: 湖北工业大学, 2014. Zheng Fei. Different Clayed Soil Compaction Degree Concept of Micro Pore Structure Research and Fractal Characterization[D]. Wuhan: Hubei University of Technology, 2014.
[4] 高国瑞. 黄土显微结构分类与湿陷性[J]. 中国科学:A辑, 1980, 10 (12): 1203-1208. Gao Guorui. Classification of Loess Microstructure and Its Collapsibility[J]. Science in China:Series A, 1980, 10(12): 1203-1208.
[5] Lapierre C, Leroueil S, Locat J. Mercury Intrusion and Permeability of Louiseville Clay[J]. Canadian Geotechnical Journal,2000, 27(6): 761-773.
[6] 赵天宇, 张虎元, 严耿升, 等. 河西寒旱区盐渍土地层温湿度变化模式[J]. 吉林大学学报(地球科学版), 2016, 46(5): 1466-1474. Zhao Tianyu, Zhang Huyuan, Yan Gengsheng, et al.Variation Pattern of Temperature and Humidity for Saline Soil in Cold and Arid Regions of Hexi Corridor[J]. Journal of Jilin University (Earth Science Edition), 2016, 46 (5) : 1466-1474.
[7] 马骏骅, 马可, 徐贵娃. 冻融循环作用下黄土状土孔隙分布分形几何研究[J]. 煤炭工程, 2012(增刊2): 129-133. Ma Junhua, Ma Ke, Xu Guiwa. Study of Pore Distribution and Fractal Geometry of Loess Soil Under Freeze-Thaw Cycles[J]. Coal Engineering, 2012(Sup.2): 129-133.
[8] 倪万魁, 师华强. 冻融循环作用对黄土微结构和强度的影响[J]. 冰川冻土, 2014, 36(4): 922-927. Ni Wankui, Shi Huaqiang. Influence of Freezing-Thawing Cycles on Micro-Structure and Shear Strength of Loess[J]. Journal of Glaciology and Geocryology, 2014, 36(4): 922-927.
[9] 肖东辉, 冯文杰, 张泽. 冻融循环作用下黄土孔隙率变化规律[J]. 冰川冻土, 2014, 36(4): 907-912. Xiao Donghui, Feng Wenjie, Zhang Ze. The Changing Rule of Loess's Porosity Under Freezing-Thawing Cycles[J]. Journal of Glaciology and Geocryology, 2014, 36(4): 907-912.
[10] 张平. 软土孔隙特征及其固结过程中变化的研究[D]. 广州: 华南理工大学, 2011. Zhang Ping. Study on Pore Characteristic of Soft Soil and the Change of Pore Characteristic Between Consolidation Process[D]. Guangzhou: South China University of Technology, 2011.
[11] 蒋明镜, 胡海军, 彭建兵, 等. 应力路径试验前后黄土孔隙变化及与力学特性的联系[J]. 岩土工程学报, 34(8): 1369-1377. Jiang Mingjing, Hu Haijun, Peng Jianbing, et al. Pore Changes of Loess Before and After Stress Path Tests and Their Links with Mechanical Behaviors[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(8): 1369-1377.
[12] 上官禾林. 基于压汞法的油页岩孔隙特征的研究[D]. 太原: 太原理工大学, 2014. Shangguan Helin. Research on Oil Shale Pore Characteristics Based on Mercury Intrusion Method[D]. Taiyuan: Taiyuan University of Technology,2014.
[13] 江福河. 压汞法对不同深度软土固结的微观孔隙特征研究[J]. 科学技术与工程, 2011, 11(31): 7701-7706. Jiang Fuhe. The Study of Micro Pore Characteristics on Different Depth Soft Soil Consolidation by Mercury Intrusion Porosimetry[J]. Science Technology and Engineering, 2011,11(31): 7701-7706.
[14] 庄心善, 张立波, 陶高梁, 等. 压汞试验技术研究黏性土微观孔隙分布特性[J]. 湖北工业大学学报, 2013, 28(1): 22-24. Zhuang Xinshan, Zhang Libo, Tao Gaoliang, et al. Experiment Study on Microscopic Pore Distribution Characteristics of Clays Based on the Mercury Intrusion Technology[J]. Journal of Hubei University of Technology, 2013, 28(1): 22-24.
[15] 刘松玉, 张继文. 土中孔隙分布的分形特征[J].东南大学学报, 1997, 27(3): 127-130. Liu Songyu, Zhang Jiwen. Fractal Approach to Measuring Soil Porosity[J]. Journal of Southeast University, 1997, 27(3): 127-130.
[16] 陶高梁. 岩土多孔介质孔隙结构的分形研究及其应用[D].武汉: 武汉理工大学, 2010. Tao Gaoliang. Fractal Approach on Pore Structure of Rock and Soil Porous Media and Its Applications[D]. Wuhan: Wuhan University of Technology, 2010.
[17] Sasanian S,Newson T A. Use of Mercury Intrusion Porosimetry for Microstructural Investigation of Reconstituted Clays at High Water Contents[J]. Engineering Geology, 2013, 158: 15-22.
[18] 唐明, 王甲春, 李连君. 压汞测孔评价混凝土材料孔隙分形特征的研究[J]. 沈阳建筑工程学院学报(自然科学版), 2001, 17(4): 272-275. Tang Ming, Wang Jiachun, Li Lianjun. Research on Fractal Characteristics of Concrete Materials Pore with MIP[J]. Journal of Shenyang Architectural and Civil Engineering University (Nature Science), 2001, 17(4): 272-275.
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