考虑干湿循环影响的压实黄土结构性本构关系

doi:10.16285/j.rsm.2021.0551

Rock and Soil Mechanics ›› 2021, Vol. 42 ›› Issue (11): 2977-2986.doi: 10.16285/j.rsm.2021.0551

• Fundamental Theroy and Experimental Research • Previous Articles Next Articles

Structural constitutive relation of compacted loess considering the effect of drying and wetting cycles

HAO Yan-zhou¹, WANG Tie-hang², CHENG Lei³, JIN Xin⁴

1. School of Civil and Transportation Engineering, Henan University of Urban Construction, Pingdingshan, Henan 467036, China; 2. School of Civil Engineering, Xi’ an University of Architecture and Technology, Xi’ an, Shaanxi 710055, China; 3. College of Engineering Management and Real Estate, Henan University of Economics and Law, Zhengzhou, Henan 450046, China; 4. School of Civil and Architectural Engineering, Xi’an Technological University, Xi’ an, Shaanxi 710021, China

Received:2021-05-13 Revised:2021-08-24 Online:2021-11-11 Published:2021-11-12
Supported by:
This work was supported by the Key Research & Development Program of Shaanxi (2018ZDCXL-SF-30-9).

Abstract

Abstract: A series of consolidated drained triaxial shear tests was carried out on compacted loess samples under different drying and wetting cycles to study the structural constitutive relationship considering the effect of drying and wetting cycles. The results indicated that the triaxial shear mechanical properties of compacted loess in different structural states were significantly different, which is indicative of obvious structural characteristics. Based on the analysis of the triaxial shear stress-strain relationship curves of compacted loess under different drying and wetting cycles, the triaxial shear structural parameters of drying and wetting cycles were defined according to the theory of comprehensive structural potential, and the rationality of the parameters was verified. The structural parameters were transformed and introduced into Duncan-Chang model to establish structural Duncan-Chang model which includes the effect of drying and wetting cycles. The comparison results showed that the calculated value of the constitutive model was basically consistent with the experimental value, which verified the rationality and applicability of the structural constitutive model. In accordance of the constitutive relation and parameters in this paper, taking a loess filling project as an example, the preliminary numerical analysis of which showed that the drying and wetting cycles had a great influence on the deformation of the filling foundation.

Key words: drying and wetting cycle, compacted loess, structural parameters, constitutive relation

CLC Number:

TU 444

HAO Yan-zhou, WANG Tie-hang, CHENG Lei, JIN Xin, . Structural constitutive relation of compacted loess considering the effect of drying and wetting cycles[J].Rock and Soil Mechanics, 2021, 42(11): 2977-2986.

References

Related Articles 15

[1]	CHENG Tan, GUO Bao-hua, SUN Jie-hao, TIAN Shi-xuan, SUN Chong-xuan, CHEN Yan, . Establishment of constitutive relation of shear deformation for irregular joints in sandstone [J]. Rock and Soil Mechanics, 2022, 43(1): 51-64.
[2]	LI Yan, LI Tong-lu, HOU Xiao-kun, LI Hua, ZHANG Jie, . Prediction of unsaturated permeability curve of compaction loess with pore-size distribution curve and its application scope [J]. Rock and Soil Mechanics, 2021, 42(9): 2395-2404.
[3]	GE Miao-miao, LI Ning, SHENG Dai-chao, ZHU Cai-hui, PINEDA Jubert, . Experimental investigation of microscopic deformation mechanism of unsaturated compacted loess under hydraulic coupling conditions [J]. Rock and Soil Mechanics, 2021, 42(9): 2437-2448.
[4]	LI Bo-bo, WANG Zhong-hui, REN Chong-hong, ZHANG Yao, XU Jiang, LI Jian-hua, . Mechanical properties and damage constitutive model of coal under the coupled hydro-mechanical effect [J]. Rock and Soil Mechanics, 2021, 42(2): 315-323.
[5]	ZHANG Zong-tang, GAO Wen-hua, ZHANG Zhi-min, TANG Xiao-yu, WU Jun, . Evolution of particle disintegration of red sandstone using Weibull distribution [J]. Rock and Soil Mechanics, 2020, 41(3): 877-885.
[6]	WEN Lei, LIANG Xu-li, FENG Wen-jie, WANG Wei, WANG Liang, CHANG Jiang-fang, YUAN Wei, . An investigation of the mechanical properties of sandstone under coupled static and dynamic loading [J]. Rock and Soil Mechanics, 2020, 41(11): 3540-3552.
[7]	CHEN Yong-qing, WEN Chang-ping, FANG Xuan-qiang, . Modified Yin’s double-yield-surface model for bioenzyme-treated expansive soil [J]. Rock and Soil Mechanics, 2019, 40(9): 3515-3523.
[8]	WANG Juan-juan, HAO Yan-zhou, WANG Tie-hang. Experimental study of structural characteristics of unsaturated compacted loess [J]. Rock and Soil Mechanics, 2019, 40(4): 1351-1357.
[9]	GAO Yuan, YU Yong-tang, ZHENG Jian-guo, LIANG Yi, . Strength characteristics of compacted loess during leaching [J]. Rock and Soil Mechanics, 2019, 40(10): 3833-3843.
[10]	ZHOU Hui, HUANG Lei , JIANG Yue, LU Jing-jing, ZHANG Chuan-qing, HU Da-wei, LI Zhen, . Critical problems and research progress on the development of rock hollow cylinder torsional shear apparatus [J]. Rock and Soil Mechanics, 2018, 39(12): 4295-4304.
[11]	YOU Zhi-jia, FU Hou-li, YOU Chun-an, ZHANG Jun, SHAO Hui, BI Dong-bin, SHI Jian,. Stress transfer mechanism of soil anchor body [J]. , 2018, 39(1): 85-92.
[12]	ZENG Zhi-xiong, KONG Ling-wei, TIAN Hai, LI Ju-zhao. Effect of drying and wetting cycles on disintegration behavior of swelling mudstone and its grading entropy characterization [J]. , 2017, 38(7): 1983-1989.
[13]	LIU Wen-sheng, WU Zuo-qi, LIANG Huai-jie，. The experimental study on structural parameters of unconsolidated layers soil of Nanpiao mining [J]. , 2017, 38(6): 1725-1732.
[14]	ZHOU Yang, XIAO Shi-guo, XU Jun, HU Ya-yun，. Model test on vertical bearing capacity of variable cross-section thread piles [J]. , 2017, 38(3): 747-754.
[15]	ZHANG Yu-ting, DING Xiu-li, WU Ai-qing, LU Bo. Deformation characteristics of natural structural planes with certain thickness under normal cyclic loading condition [J]. , 2017, 38(10): 2865-2872.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

Comments

Recommended 10

[1]	YIN Jie，GAO Yu-feng，HONG Zhen-shun. Research on undrained shear strength tests of soft Lianyungang clay[J]. , 2009, 30(11): 3297 -3301 .
[2]	CHEN Shao-jie, GUO Wei-jia, YANG Yong-jie. Experimental study of creep model and failure characteristics of coal[J]. , 2009, 30(9): 2595 -2598 .
[3]	ZHAO Lian-heng，LUO Qiang，LI Liang，YANG Feng，DAN Han-cheng. Upper bound quasi-static analysis of dynamic stability of layered rock slopes[J]. , 2010, 31(11): 3627 -3634 .
[4]	LIU Xiao-li, ZHANG Dan-dan, LIU Kai, SU Yuan-yuan. Design and application of a kind of direct shear model test apparatus[J]. , 2010, 31(S2): 475 -480 .
[5]	KANG Yong-jun，YANG Jun，SONG Er-xiang. Calculation method and parameter research for time-history of factor of safety of slopes subjected to seismic load[J]. , 2011, 32(1): 261 -268 .
[6]	LU Kun-lin, YANG Yang. Approximate calculation method of active earth pressure considering displacement[J]. , 2009, 30(2): 553 -557 .
[7]	LI Rong-jian，YU Yu-zhen，Lü He，LI Guang-xin. Dynamic centrifuge modeling of piles-reinforced slope on saturated sandy foundation[J]. , 2009, 30(4): 897 -902 .
[8]	XIAO Cheng-zhi, SUN Jian-cheng, LI Yu-run, LIU Xiao-peng. Mechanism analysis of ecological slope protection against runoff erosion by grass jetting on 3D geomat[J]. , 2011, 32(2): 453 -458 .
[9]	ZHOU Wan-huan , YIN Jian-hua. Finite element modeling soil nail pullout behavior and effects of overburden pressure and dilation[J]. , 2011, 32(S1): 691 -0696 .
[10]	QIAN Jian-gu , HUANG Mao-song. Micro-macro mechanismic analysis of plastic anisotropy in soil[J]. , 2011, 32(S2): 88 -93 .