干湿循环效应固化黄土宏-微观演化特征函数

焦远帆; 晏长根; 常洲; 贾卓龙; 章一博; 梁哲瑞; 张家辉

doi:10.13870/j.cnki.stbcxb.2025.01.030

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干湿循环效应固化黄土宏-微观演化特征函数

更新时间：2025-03-14

- 干湿循环效应固化黄土宏-微观演化特征函数
- Macro-micro Evolution Characteristic Function of Solidified Loess under the Effects of Dry-wet Cycles
- 水土保持学报 2025年39卷第1期页码：303-315
- 作者机构：
  
  长安大学公路学院,西安,710064
- 作者简介：
  
  [ "焦远帆(2000—), 男, 在读硕士研究生, 主要从事岩土工程研究。E-mail: 1450440246@qq.com" ]
- 基金信息：
  
  国家自然科学基金项目(42077265, 41927806)
- DOI：10.13870/j.cnki.stbcxb.2025.01.030
  中图分类号： TU444
- 纸质出版：2025
- 稿件说明：
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焦远帆, 晏长根, 常洲, 等. 干湿循环效应固化黄土宏-微观演化特征函数[J]. 水土保持学报, 2025,39(1):303-315.

JIAO Yuanfan, YAN Changgen, CHANG Zhou, et al. Macro-micro Evolution Characteristic Function of Solidified Loess under the Effects of Dry-wet Cycles[J]. 2025, 39(1): 303-315.
焦远帆, 晏长根, 常洲, 等. 干湿循环效应固化黄土宏-微观演化特征函数[J]. 水土保持学报, 2025,39(1):303-315. DOI： 10.13870/j.cnki.stbcxb.2025.01.030.

JIAO Yuanfan, YAN Changgen, CHANG Zhou, et al. Macro-micro Evolution Characteristic Function of Solidified Loess under the Effects of Dry-wet Cycles[J]. 2025, 39(1): 303-315. DOI： 10.13870/j.cnki.stbcxb.2025.01.030.

摘要

目的为探讨生态护坡材料的长期服役耐久性。方法通过干湿循环条件下的力学试验和渗透试验，研究固化黄土宏观性能的演化规律，利用扫描电镜和图像处理技术，分析干湿循环对微结构形态的损伤规律，探讨生物胶改善黄土宏观性能干湿循环耐久性的微观机理，并基于宏观性能指标和微结构参数建立宏-微观演化特征函数，描述干湿循环条件下宏观性能与微观结构间的数值响应关系。结果生物胶抑制固化黄土力学性质劣化，抑制效果与生物胶掺量呈正相关，生物胶增大固化黄土的渗透性能变化，变化幅度与掺量呈负相关；干湿循环造成黄土胶结作用失效，颗粒损伤，孔隙增大，减缓颗粒损伤，生物胶增强黄土胶结作用，改变孔隙发育模式；演化特征函数预测效果良好，超过95%的预测点落在均方误差线以内。生物胶的加入有利于改善黄土宏观性能的干湿循环耐久性；特征函数的敏感性分析表明，孔隙率对力学性能影响最大，孔径＞32 μm的大孔隙率对渗透性能影响最大。结论研究结果可为生物胶固化土护坡技术的工程应用及后续改良提供理论依据。

Abstract

ObjectiveTo reveal the durability of solidified loess slope protection in long-term service.MethodsUnder the condition of dry-wet cycles

direct shear

permeability mechanical tests of solidified loess were carried out to study the evolution law of the macro-properties of stabilized loess

and the damage law of dry-wet cycles on the morphology of the microstructure was analyzed by using scanning electron microscopy and image processing technology. The micro-mechanism of improvement of the dry-wet cycle durability of the macro-properties of loess by biological glue was discussed

and the macro-micro-evolution feature function was established based on the macro-performance index and the micro-structure view parameters to describe the numerical response relationship between the macro-properties and the micro-structure under the dry-wet cycle conditions.ResultsThe biological glue inhibited the deterioration of mechanical properties of solidified loess

and the inhibitive effect was positively correlated with the content of biological glue; the change of permeability of solidified loess was increased by biological glue

and the change amplitude was negatively correlated with the content of biological glue. The dry-wet cycles resulted in the failure of loess cementation

particle damage and pore increase. The biological glue enhanced the loess cementation

slowed down the particle damage and changed the pore development pattern. More than 95% of the predicted points fell within the mean square error line. The addition of biological glue could improve the durability of the macroscopic properties of loess under dry-wet cycles. The sensitivity analysis of the characteristic function showed that the porosity had the greatest influence on the mechanical properties

and the large porosity with pore size > 32 μm had the greatest influence on the permeability.ConclusionThe research findings can provide a theoretical basis for the engineering application of biological glue for the technology of soil solidification and slope protection and subsequent improvement of the technology.

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references

AI S H, LIU Z Y, AI X Y, et al. China's road slopes need long-term protection[J]. Science, 2024, 384(6699): e967.

YAN C G, LIANG Z R, JIA Z L, et al. Review on surface protection technologies of loess slope[J]. Journal of Traffic and Transportation Engineering, 2023, 23(4): 1-22. 晏长根, 梁哲瑞, 贾卓龙, 等. 黄土边坡坡面防护技术综述[J]. 交通运输工程学报, 2023, 23(4): 1-22.

FATEHI H, ABTAHI S M, HASHEMOLHOSSEINI H, et al. A novel study on using protein based biopolymers in soil strengthening[J]. Construction and Building Materials, 2018, 167: 813-821.

HE Z Q, FAN H H, WANG J Q, et al. Experimental study of engineering properties of loess reinforced by lignosulfonate[J]. Rock and Soil Mechanics, 2017, 38(3): 731-739. 贺智强, 樊恒辉, 王军强, 等. 木质素加固黄土的工程性能试验研究[J]. 岩土力学, 2017, 38(3): 731-739.

CHANG I, IM J, PRASIDHI A K, et al. Effects of Xanthan gum biopolymer on soil strengthening[J]. Construction and Building Materials, 2015, 74: 65-72.

SHARMA G, SHARMA S, KUMAR A, et al. Guar gum and its composites as potential materials for diverse applications: A review[J]. Carbohydrate Polymers, 2018, 199: 534-545.

YANG W L, SHI Y L, MU P X, et al. An experimental study of the engineering properties and erosion resistance of guar gum-reinforced loess[J]. Hydrogeology and Engineering Geology, 2022, 49(4): 117-124. 杨万里, 石玉玲, 穆鹏雪, 等. 瓜尔豆胶固化黄土的工程特性及抗冲蚀试验研究[J]. 水文地质工程地质, 2022, 49(4): 117-124.

WANG T L, WANG L, LIU S S, et al. Experimental study on mechanical properties of expansive soil improved by xanthan gum and guar gum[J]. China Railway Science, 2023, 44(2): 1-10. 王天亮, 王林, 刘松松, 等. 黄原胶和瓜尔胶改良膨胀土力学特性试验研究[J]. 中国铁道科学, 2023, 44(2): 1-10.

JIA Z L, YAN C G, LI B, et al. Performance test and effect evaluation of guar gum-stabilized loess as a sustainable slope protection material[J]. Journal of Cleaner Production, 2023, 408: e137085.

BAO H, LIU C Q, LAN H X, et al. Time-dependency deterioration of polypropylene fiber reinforced soil and guar gum mixed soil in loess cut-slope protecting[J]. Engineering Geology, 2022, 311: e106895.

LEI X Y. Pore types and collapsibility of loess in China[J]. Science of China(B), 1987, 12: 1309-1316. 雷祥义. 中国黄土的孔隙类型与湿陷性[J]. 中国科学(B辑), 1987(12): 1309-1316.

QI J L, ZHANG J M, ZHU Y L, Influence of freezing-thawing on soil structure and its soil mechanics significance[J]. Chinese Journal of Rock Mechanics and Engineering, 2003(S2): 2690-2694. 齐吉琳, 张建明, 朱元林. 冻融作用对土结构性影响的土力学意义[J]. 岩石力学与工程学报, 2003(S2): 2690-2694.

FANG X W, SHEN C N, WANG L, et al. Research on microstructure of Q2 loess before and after wetting[J]. Rock and Soil Mechanics, 2013, 34(5): 1319-1324. 方祥位, 申春妮, 汪龙, 等. Q2黄土浸水前后微观结构变化研究[J]. 岩土力学, 2013, 34(5): 1319-1324.

XU P P, ZHANG Q Y, QIAN H, et al. Microstructure and permeability evolution of remolded loess with different dry densities under saturated seepage[J]. Engineering Geology, 2021, 282: e105875.

BAO H, YIN X Q, LAN H X, et al. Permeability anisotropy of natural loess with gradation zone: Case study of Q1 loess in Yan'an New District[J]. Chinese Journal of Geotechnical Engineering, 2023, 45(4): 730-738. 包含, 尹晓晴, 兰恒星, 等. 基于微结构量化的含渐变带天然黄土渗透各向异性研究: 以延安新区Q1黄土为例[J]. 岩土工程学报, 2023, 45(4): 730-738.

ZHANG L K, DING X S, FAN P P. Experimental study on mechanical properties and microscopic mechanism of remolded loess in northern Xinjiang[J]. Materials Reports, 2025, 39(3): 107-116. 张凌凯, 丁旭升, 樊培培. 新疆北部重塑性黄土的力学特性规律及微观机制试验研究[J]. 材料导报, 2025, 39(3): 107-116.

YUAN Z H. Study on the strength and microstructure change mechanism of loess under dry-wet cycle[D]. Xi'an: Chang'an University, 2015. 袁志辉. 干湿循环下黄土的强度及微结构变化机理研究[D]. 西安: 长安大学, 2015.

MA Y F, BAO H, YAN C G, et al. Mechanical properties and microstructure evolution of two ecological slope-protection materials under dry-wet cycles[J]. Journal of Cleaner Production, 2023, 416: e137833.

FAN P P, ZHANG L K, DING X S. Deterioration law of shear and compression characteristics of collapsible loess under dry-wet and freeze-thaw cycles[J]. Rock and Soil Mechanics, 2024, 45(7): 2050-2060. 樊培培, 张凌凯, 丁旭升. 干湿-冻融循环条件下湿陷性黄土剪切及压缩特性的劣化规律[J]. 岩土力学, 2024, 45(7): 2050-2060.

LIU Y Y, AN C, LAI H P, et al. Experimental research on strength and microstructure evolution of Q2 undisturbed loess under different wetting-drying cycle paths[J]. China Journal of Highway and Transport, 2022, 35(12): 168-180. 刘禹阳, 安驰, 来弘鹏, 等. 不同干湿循环路径下Q2原状黄土强度与微观结构演化试验[J]. 中国公路学报, 2022, 35(12): 168-180.

Restoration and development of the degraded Loess Plateau, China[M]. Springer Japan, 2014.

XU P P, ZHANG Q Y, QIAN H, et al. Sem-based multi-level pore characteristics-a case study of remolded loess[J]. Journal of Engineering Geology, 2023, 31(6): 1799-1810. 徐盼盼, 张奇莹, 钱会, 等. 基于SEM多级化孔隙特征研究: 以重塑黄土为例[J]. 工程地质学报, 2023, 31(6): 1799-1810.

PAN Z X, YANG G S, YE W J, et al. Study on mechanical properties and microscopic damage of undisturbed loess under dry and wet cycles[J]. Journal of Engineering Geology, 2020, 28(6): 1186-1192. 潘振兴, 杨更社, 叶万军, 等. 干湿循环作用下原状黄土力学性质及细观损伤研究[J]. 工程地质学报, 2020, 28(6): 1186-1192.

WANG L, CHENG W C, XUE Z F. Investigating microscale structural characteristics and resultant macroscale mechanical properties of loess exposed to alkaline and saline environments[J]. Bulletin of Engineering Geology and the Environment, 2022, 81(4): e146.

MARTIN C D. Seventeenth canadian geotechnical colloquium: The effect of cohesion loss and stress path on brittle rock strength[J]. Canadian Geotechnical Journal, 1997, 34(5): 698-725.

XU J, WU Z P, CHEN H, et al. Influence of dry-wet cycles on the strength behavior of basalt-fiber reinforced loess[J]. Engineering Geology, 2022, 302: e106645.

XU P, ZHANG Q, QIAN H, et al. Investigating the mechanism of pH effect on saturated permeability of remolded loess[J]. Engineering Geology, 2021, 284: e105978.

LEE S, CHANG I, CHUNG M K, et al. Geotechnical shear behavior of Xanthan Gum biopolymer treated sand from direct shear testing[J]. Geomechanics and Engineering, 2017, 12(5): 831-847.

CHEN Y, LI X A, HUANG R Q, et al. Micro experimental research on influence factors of loess collapsibility[J]. Journal of Engineering Geology, 2015, 23(4): 646-653. 陈阳, 李喜安, 黄润秋, 等. 影响黄土湿陷性因素的微观试验研究[J]. 工程地质学报, 2015, 23(4): 646-653.

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