循环荷载作用下红黏土的累积变形规律与增长预测模型

骆超荣; 兰景岩; 李哲瀚; 莫红艳

doi:10.11899/zzfy20250075

循环荷载作用下红黏土的累积变形规律与增长预测模型

doi: 10.11899/zzfy20250075

骆超荣^1,,
兰景岩^{3, 4, ,},
李哲瀚¹,
莫红艳^{1, 2}

1.
桂林理工大学, 土木工程学院, 广西桂林 541004
2.
桂林理工大学, 广西岩土力学与工程重点实验室, 广西桂林 541004
3.
燕山大学, 建筑工程与力学学院, 河北秦皇岛 066004
4.
燕山大学, 深圳研究院, 深圳 518063

基金项目: 国家自然科学基金（52368068、52168067）

详细信息

作者简介:
骆超荣，男，生于1998年。硕士研究生。主要从事特殊土动力学研究。E-mail：2716279088@qq.com

通讯作者:
兰景岩，男，生于1981年。博士，教授。主要从事土动力学和岩土地震工程研究。E-mail：lanjy1999@163.com

中图分类号: P315.9；TU446；TU435
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出版历程
- 收稿日期: 2025-03-31
- 录用日期: 2025-06-09
- 修回日期: 2025-05-15
- 网络出版日期: 2025-06-27

Cumulative Deformation Law and Growth Prediction Model of Red Clay Under Cyclic Loading

Luo Chaorong^1
,,
Lan Jingyan^{3, 4
, ,},
Li Zhehan¹,
Mo Hongyan^{1, 2}

1.
School of Civil Engineering, Guilin University of Technology, Guilin 541004, Guangxi, China
2.
Guangxi Key Laboratory of Geomechanics and Geotechnical Engineering, Guilin University of Technology, Guilin 541004, Guangxi, China
3.
School of Civil Engineering & Mechanics Yanshan University, Qinhuangdao 066004, Hebei, China
4.
Shenzhen Research Institute of Yanshan University, Shenzhen 518063, China

摘要

摘要: 红黏土作为一种特殊土，其动力特性显著区别于其他常规土类，当前对于重塑红黏土在循环荷载作用下累积变形规律的研究和认识还很粗浅，常规土类的变形增长预测模型并不适用于红黏土。针对这一问题，以桂林红黏土为研究对象，在固结不排水条件下开展动三轴试验，系统分析了围压、动应力幅值及初始静偏应力等因素对其累积变形发展的影响，并以此提出符合红黏土的累积塑性变形预测模型。结果表明，初始静偏应力对红黏土的累积塑性变形的影响存在明显的临界点：当初始静偏应力小于70 kPa时，累积变形随静偏应力的增加而减小，当超过该临界点后累积变形发展趋势则完全相反。此外，通过与其他不同土体累积变形曲线进行对比，分析总结红黏土与其他土体变形规律的差异，验证该变形预测模型的可靠性和普适性。研究成果有助于深化对红黏土动力变形机理的认识，为红黏土地基在交通、岩土等工程中的抗震设计与长期稳定性评估提供了理论支持。
- 红黏土 /
- 累积变形 /
- 循环三轴试验 /
- 静偏应力 /
- 预测模型
Abstract: As a special type of soil, the dynamic characteristics of red clay are significantly different from other conventional soil types. Currently, the research and understanding of the cumulative deformation law of reshaped red clay under cyclic loading are still shallow, and the deformation growth prediction model of conventional soil types is not applicable to red clay. In response to this issue, Guilin red clay was taken as the research object, and dynamic triaxial tests were conducted under consolidated undrained conditions. The influence of factors such as confining pressure, dynamic stress amplitude, and initial static deviatoric stress on its cumulative deformation development was systematically analyzed, and a cumulative plastic deformation prediction model suitable for red clay was proposed based on this. The results indicate that there is a clear critical point at which the initial static deviatoric stress affects the cumulative plastic deformation of red clay: when the initial static deviatoric stress is less than 70 kPa, the cumulative deformation decreases with the increase of static deviatoric stress, and when it exceeds this critical point, the trend of cumulative deformation development is completely opposite. In addition, by comparing the cumulative deformation curves of red clay with other soils, the differences in deformation patterns between red clay and other soils were analyzed and summarized to verify the reliability and universality of the deformation prediction model. The research results contribute to a deeper understanding of the dynamic deformation mechanism of red clay, providing theoretical support for the seismic design and long-term stability assessment of red clay foundations in transportation, geotechnical engineering, and other fields.
- Red clay /
- Accumulated deformation /
- Cyclic triaxial test /
- Initial static stress /
- prediction model

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图 1 击实试验曲线图

Figure 1. Compaction Test Curve

下载: 全尺寸图片幻灯片

图 2 DDS-70型振动三轴仪

Figure 2. DDS-70 dynamic triaxial instrument

下载: 全尺寸图片幻灯片

图 3 试样破坏前后

Figure 3. sample before and after destruction

下载: 全尺寸图片幻灯片

图 4 无静偏应力下的ε_p-N关系曲线

Figure 4. The ε_p-N relationship curve without static deviatoric stress

下载: 全尺寸图片幻灯片

图 5 现有累积变形曲线模型拟合效果分析

Figure 5. Analysis of the fitting effect of the existing cumulative deformation curve model

下载: 全尺寸图片幻灯片

图 6 不同静偏应力下的ε_p -N关系曲线

Figure 6. The ε_p -N relationship curve under static deviatoric stress

下载: 全尺寸图片幻灯片

图 7 不同静偏应力下重塑红黏土的动强度与破坏振次关系

Figure 7. Dynamic strength and failure vibration number of remolded laterite under different static deviatoric stresses

下载: 全尺寸图片幻灯片

图 8 不同动应力和不同静偏应力下其他土累积变形曲线

Figure 8. Cumulative deformation curves of other soils under different dynamic stresses and static deviatoric stresses

下载: 全尺寸图片幻灯片

表 1 红黏土物理性质

Table 1. Physical properties of red clay

土样名称	比重	液限/%	塑限/%	塑性指数	颗粒粒度组成/%
土样名称	比重	液限/%	塑限/%	塑性指数	2～0.075 mm	0.075～0.005 mm	<0.005 mm
桂林红黏土	2.75	61.79	38.10	23.69	1.463	48.28	50.25

下载: 导出CSV

表 2 红黏土矿物成分

Table 2. Mineral composition of red clay

土样名称	矿物成分组成/%
桂林红黏土	高岭石	三水铝石	伊利石	针铁矿	石英	其他
桂林红黏土	56.59	11.44	——	15.61	12.45	3.91

下载: 导出CSV

表 3 试验方案

Table 3. Experimental plan

试验/组	含水率ω/%	压实度K	动应力幅值σ_d/kPa	固结围压σ_3c/kPa	静偏应力σ_s/kPa
1	26.2	0.9	4.16、8.33、16.66、24.98、33.31	50	0
2			41.64、49.97、58.30、66.63、83.28	100	0
3			49.96、58.30、66.63、74.95	150	0
4			41.64、49.97、58.30、66.63、74.95	200	0
5			19.57、20.82、22.91、24.98、33.31	100	20
6			20.82、22.90、24.98、33.31、41.64	100	40
7			24.98、29.14、33.31、41.64	100	70
8			12.49、16.66、20.82、24.98、33.31	100	100

下载: 导出CSV

表 4 累积轴向应变曲线拟合参数值

Table 4. Cumulative axial strain curve fitting parameter values

序号	σ_3c/kPa	σ_d/kPa	a	b	c	d	1.57a+d	R²	状态
1	50	4.16	0.000 7	0.025 8	0.0000	0.0000	0.001 0	0.849 6	稳定
2	50	8.33	0.031 0	0.004 4	−0.353 7	0.009 9	0.056 3	0.993 3	破坏
3	50	16.66	0.055 9	0.025 7	−1.248 8	0.049 1	0.133 0	0.999 9	破坏
4	50	24.98	0.073 5	0.074 9	−1.532 5	0.067 9	0.178 0	0.999 1	破坏
5	50	33.31	0.157 5	0.223 7	−1.298 8	0.131 2	0.367 0	1.000 0	破坏
6	100	41.64	0.004 4	0.007 6	0.0000	—	0.008 2	0.977 4	稳定
7	100	49.97	0.040 4	0.024 6	−2.244 6	0.050 7	0.111 0	0.998 9	破坏
8	100	58.30	0.048 4	0.029 5	−1.919 0	0.057 5	0.130 0	0.999 6	破坏
9	100	66.63	0.121 3	0.097 8	−0.016 1	0.0000	0.157 0	0.998 6	破坏
10	100	83.28	0.116 6	0.117 5	0.0000	0.007 5	0.236 0	0.997 9	破坏
11	150	49.96	−0.005 0	−0.005 5	−0.467 9	0.0000	—	0.985 4	稳定（舍去）
12	150	58.30	0.004 9	0.003 7	−0.208 8	0.003 1	0.010 5	0.992 1	稳定
13	150	66.63	0.041 4	0.078 6	−4.073 9	0.054 8	0.117 0	0.998 8	破坏
14	150	74.95	0.069 1	0.049 4	−0.458 1	0.029 4	0.133 0	0.999 7	破坏
15	200	41.64	0.043 4	0.037 8	−4.463 1	0.058 1	0.123 0	1.000 0	破坏
16	200	49.97	0.051 6	0.062 2	−2.194 3	0.057 9	0.135 0	0.999 7	破坏
17	200	58.30	0.057 3	0.078 9	−1.717 2	0.057 8	0.144 0	0.999 9	破坏
18	200	66.63	0.064 8	0.219 6	−2.127 8	0.068 6	0.166 0	0.999 1	破坏
19	200	74.95	0.095 0	0.194 6	−0.659 1	0.042 1	0.185 0	0.999 4	破坏

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参考文献(19)

陈颖平, 黄博, 陈云敏, 2005. 循环荷载作用下结构性软粘土的变形和强度特性. 岩土工程学报, 27(9): 1065−1071. doi: 10.3321/j.issn:1000-4548.2005.09.018

Chen Y. P., Huang B., Chen Y. M., 2005. Deformation and strength of structural soft clay under cyclic loading. Chinese Journal of Geotechnical Engineering, 27(9): 1065−1071. (in Chinese) doi: 10.3321/j.issn:1000-4548.2005.09.018

黄博, 史海栋, 凌道盛等, 2012. 两种粉质黏土的动、静强度特性对比研究. 岩土力学, 33(3): 665−673. doi: 10.3969/j.issn.1000-7598.2012.03.004

Huang B., Shi H. D., Ling D. S., et al., 2012. Comparisons of static and dynamic behaviors between two silty clays by test. Rock and Soil Mechanics, 33(3): 665−673. (in Chinese) doi: 10.3969/j.issn.1000-7598.2012.03.004

孔令伟, 罗鸿禧, 袁建新, 1995. 红粘土有效胶结特征的初步研究. 岩土工程学报, 17(5): 42−47.

Kong L. W., Luo H. X., Yuan X. J., 1995. Preliminary study on the effective cementation characteristics of the red clay. Chinese Journal of Geotechnical Engineering, 17(5): 42−47. (in Chinese)

李剑, 陈善雄, 姜领发等, 2014. 应力历史对重塑红黏土动力特性影响的试验研究. 岩土工程学报, 36(9): 1657−1665. doi: 10.11779/CJGE201409012

Li J., Chen S. X., Jiang L. F., et al., 2014. Experimental study on influence of stress history on dynamic properties of remolded red clay. Chinese Journal of Geotechnical Engineering, 36(9): 1657−1665. (in Chinese) doi: 10.11779/CJGE201409012

刘晓红, 2011. 高速铁路无砟轨道红黏土路基动力稳定性研究. 长沙: 中南大学.

Liu X. H., 2011. Research on dynamic stability of red clay subgrade under ballastless track of high-speed railway. Changsha: Central South University. (in Chinese)

骆超荣, 咸甘玲, 兰景岩等, 2025. 干湿循环对红黏土动剪切模量和阻尼比的影响研究. 防灾科技学院学报, 27(3): 24−32. doi: 10.3969/j.issn.1673-8047.2025.03.003

Luo C. R., Xian G. L., Lan J. Y., et al., 2025. Effect of drying-wetting cycles on the dynamic shear modulus and damping ratio of red clay. Journal of Institute of Disaster Prevention, 27(3): 24−32. (in Chinese) doi: 10.3969/j.issn.1673-8047.2025.03.003

蒙高磊, 刘之葵, 雷轶, 2014. 红黏土的研究现状和展望. 路基工程, (4): 7−11. doi: 10.13379/j.issn.1003-8825.2014.04.02

Meng G. L., Liu Z. K., Lei Y., 2014. Research status and trend of red clay. Subgrade Engineering, (4): 7−11. (in Chinese) doi: 10.13379/j.issn.1003-8825.2014.04.02

孟晓宇, 熊峰, 吴堃等, 2018. 循环荷载作用下江西重塑红黏土动力特性试验研究. 科学技术与工程, 18(25): 84−90. doi: 10.3969/j.issn.1671-1815.2018.25.013

Meng X. Y., Xiong F., Wu K., et al., 2018. Experimental study on dynamic properties of remolded red clay in Jiangxi under cyclic loading. Science Technology and Engineering, 18(25): 84−90. (in Chinese) doi: 10.3969/j.issn.1671-1815.2018.25.013

穆坤, 郭爱国, 柏巍等, 2015. 循环荷载作用下广西红黏土动力特性试验研究. 地震工程学报, 37(2): 487−493. doi: 10.3969/j.issn.1000-0844.2015.02.0487

Mu K., Guo A. G., Bai W., et al., 2015. Experimental study on dynamic properties of red clay in Guangxi under cyclic loading. China Earthquake Engineering Journal, 37(2): 487−493. (in Chinese) doi: 10.3969/j.issn.1000-0844.2015.02.0487

穆锐, 黄质宏, 姚未来等, 2022. 分级循环荷载下原状红黏土动力特性试验研究. 水文地质工程地质, 49(3): 94−102. doi: 10.16030/j.cnki.issn.1000-3665.202108053

Mu R., Huang Z. H., Yao W. L., et al., 2022. An experimental study of the dynamic characteristics of the undisturbed laterite under graded cyclic loading. Hydrogeology & Engineering Geology, 49(3): 94−102. (in Chinese) doi: 10.16030/j.cnki.issn.1000-3665.202108053

唐咸远, 王诗海, 马杰灵等, 2023. 广西钦崇高速公路膨胀土动力变形及动强度特性试验研究. 重庆交通大学学报(自然科学版), 42(5): 61−69. doi: 10.3969/j.issn.1674-0696.2023.05.08

Tang X. Y., Wang S. H., Ma J. L., et al., 2023. Experimental study on dynamic deformation and dynamic strength characteristics of expansive soil of Qinchong expressway in Guangxi. Journal of Chongqing Jiaotong University (Natural Science), 42(5): 61−69. (in Chinese) doi: 10.3969/j.issn.1674-0696.2023.05.08

王元战, 胡珅榕, 杨攀博, 2016. 循环荷载下滨海软粘土累积塑性应变试验研究. 水道港口, 37(3): 298−305. doi: 10.3969/j.issn.1005-8443.2016.03.024

Wang Y. Z., Hu S. R., Yang P. B., 2016. Experimental research on cumulative plastic strain of littoral soft clay under cyclic loading. Journal of Waterway and Harbor, 37(3): 298−305. (in Chinese) doi: 10.3969/j.issn.1005-8443.2016.03.024

谢栎, 吴建奇, 2019. 循环荷载作用下红黏土累积变形研究. 地震工程学报, 41(6): 1623−1629.

Xie S., Wu J. Q., 2019. Accumulative deformation of red clay in southern Jiangxi under cyclic loading. China Earthquake Engineering Journal, 41(6): 1623−1629. (in Chinese)

臧濛, 孔令伟, 曹勇, 2017. 描述循环荷载作用下黏土累积变形的改进模型. 岩土力学, 38(2): 435−442. doi: 10.16285/j.rsm.2017.02.017

Zang M., Kong L. W., Cao Y., 2017. An improved model for cumulative deformations of clay subjected to cyclic loading. Rock and Soil Mechanics, 38(2): 435−442. (in Chinese) doi: 10.16285/j.rsm.2017.02.017

张林锋, 肖欣, 李辉, 2008. 桂林红黏土微结构特征分析. 山西建筑, 34(31): 111−113. doi: 10.3969/j.issn.1009-6825.2008.31.066

Zhang L. F., Xiao X., Li H., 2008. The analysis of the microstructure characteristics of the red clay in Guilin. Shanxi Architecture, 34(31): 111−113. (in Chinese) doi: 10.3969/j.issn.1009-6825.2008.31.066

张勇, 孔令伟, 郭爱国等, 2009. 循环荷载下饱和软黏土的累积塑性应变试验研究. 岩土力学, 30(6): 1542−1548. doi: 10.3969/j.issn.1000-7598.2009.06.002

Zhang Y., Kong L. W., Guo A. G., et al., 2009. Cumulative plastic strain of saturated soft clay under cyclic loading. Rock and Soil Mechanics, 30(6): 1542−1548. (in Chinese) doi: 10.3969/j.issn.1000-7598.2009.06.002

庄心善, 赵汉文, 陶高梁等, 2020. 循环荷载下弱膨胀土累积变形与动强度特性试验研究. 岩土力学, 41(10): 3192−3200. doi: 10.16285/j.rsm.2019.2180

Zhuang X. S., Zhao H. W., Tao G. L., et al., 2020. Accumulated deformation and dynamic strength properties of weak expansive soil under cyclic loading. Rock and Soil Mechanics, 41(10): 3192−3200. (in Chinese) doi: 10.16285/j.rsm.2019.2180

Li J., Chen S. X., Jiang L. F., et al., 2016. Test study on the influences of dynamic stress and load history to the dynamic properties of the remolded red clay. Earth Sciences Research Journal, 20(4): G1−G8. doi: 10.15446/esrj.v20n4.54400

Monismith C. L., Ogawa N., Freeme C. R., 1975. Permanent deformation characteristics of subgrade soils due to repeated loading. In: 54th Annual Meeting of the Transportation Research Board. Washington District of Columbia: Transportation Research Board, 1−17.

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