Development of Soil Cracks in Granite Benggang Area Under Wetting-drying Cycles

HAN Jiexin; DENG Zhihui; WANG Jingmi; DENG Yusong; HUANG Zhigang; DUAN Xiaoqian

doi:10.13870/j.cnki.stbcxb.2024.05.036

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Development of Soil Cracks in Granite Benggang Area Under Wetting-drying Cycles

更新时间：2025-02-18

- Development of Soil Cracks in Granite Benggang Area Under Wetting-drying Cycles
- Vol. 38, Issue 5, Pages: 262-271(2024)
- 作者机构：
  
  1. 广西大学农学院,南宁,530004
  2. 广西大学林学院,南宁,530004
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2024.05.036
  CLC： S157.1
- Published：2024
- 稿件说明：
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HAN Jiexin, DENG Zhihui, WANG Jingmi, et al. Development of Soil Cracks in Granite Benggang Area Under Wetting-drying Cycles[J]. 2024, 38(5): 262-271.
DOI：

HAN Jiexin, DENG Zhihui, WANG Jingmi, et al. Development of Soil Cracks in Granite Benggang Area Under Wetting-drying Cycles[J]. 2024, 38(5): 262-271. DOI： 10.13870/j.cnki.stbcxb.2024.05.036.

摘要

[目的] 土体裂隙可以改变土壤结构

降低土体稳定性

进而加速崩岗发育。深入探究干湿交替条件下花岗岩崩岗区裂隙发育规律

具有重要的现实意义。[方法] 以花岗岩坡面土壤的7个样点为研究对象

分别为坡上红土层(US)、坡中红土层(MS)、坡下红土层(DS)、崩壁红土层(RL)、崩壁过渡层(TL)、崩壁砂土层1(SL1)和崩壁砂土层2(SL2)

进行干湿循环试验

结合数字图像处理技术对土体表观裂隙进行定量分析。[结果] (1)花岗岩崩岗区土体Rsc、Na和土体破碎化程度随含水量的降低而增加

7个样点的Rsc、Na、Wa、La均随干湿交替次数增加而逐渐降低;(2)集水坡面坡上、坡中红土层及崩壁砂土层裂隙连通度与砂粒呈显著正相关;各样点Rsc与饱和水含量、有机质、阳离子交换量、游离氧化铁呈显著正相关

黏粒/砂粒高的样点Rsc与黏粒/砂粒呈显著正相关。[结果] 花岗岩崩岗区土壤不同土层之间的干缩裂隙发育存在差异

但发育规律基本为发育准备期、快速发育期、发育稳定期3个阶段;花岗岩土壤坡上红土层裂隙主要为干缩裂隙

坡下红土层干缩裂隙较少。

Abstract

[Objective]Soil cracks can change soil structure

reduce soil stability

and then accelerate the development of hill collapse. It is of great practical significance to study deeply the fracture development law of granite Benggang area under wetting-drying cycles. [Methods] 7 samples of granite slope soil were taken as the research objects

including the upper part of the slope (US)

the middle part of the slope (MS)

the lower part of the slope (DS)

the red soil layer of wall collapse (RL)

the transition layer of wall collapse (TL)

the sand layer1 of wall collapse (SL1) and the sand layer2 of wall collapse (SL2). The wetting-drying cycles experiments were carried out with these samples. Combined with digital image processing technology

the soil surface cracks are quantitatively analyzed. [Results] (1) Soil Rsc

Na and soil fragmentation degree in granite Benggang area increase with the decrease of water content

the Rsc

Wa and La of 7 sample points show a gradual decrease with the increase of dry and wet alternating times. (2) The connectivity of cracks in the red soil layer in the upper part of the slope

the middle part of the slope and the sand layer of the wall collapse are significantly positively correlated with the sand content. The Rsc at each sampling point is significantly positively correlated with saturated water content

organic matter content

cation exchange capacity

and free iron oxide content. Sampling points with high clay/sand content show a significant positive correlation with clay/sand content.[Conclusion] There are differences in the development of dry shrinkage cracks in different layers of soil of granite Benggang area

but the development rules are basically three stages: preparation stage

rapid development stage and stable development stage. The cracks of red soil layer on the upper part of the slope of granite soil are mainly shrinkage cracks

and the shrinkage cracks of red soil layer in the lower part of the slope are less.

关键词

Keywords

references

邓羽松.南方花岗岩区崩岗特性、分布与地理环境因素研究[D].武汉:华中农业大学,2018. DENG Y S. Characteristics, distribution and geographical environmental factors of collapsing gully in granite region of Southern China[D].Wuhan: Huazhong Agricultural University,2018.

LIAO Y S, TANG C Y, YUAN Z J, et al. Research progress on Benggang erosion and its prevention measure in redsoil region of Southern China[J].Acta Pedologica Sinica,2018,55(6):1297-1312.

吴志峰,王继增.华南花岗岩风化壳岩土特性与崩岗侵蚀关系[J].水土保持学报,2000,14(2):31-35. WU Z F, WANG J Z. Relationship between slope disintegration and rock-soil characteristics of granite weathering mantle in South China[J].Journal of Soil and Water Conservation,2000,14(2):31-35.

XIE Y H, ZHANG B H, LIU B C, et al. Shrinkage cracking and strength deterioration of red clay under cyclic drying and wetting[J].Alexandria Engineering Journal,2022,61(3):2574-2588.

STEWART R D, RUPP D E, ABOU NAJM M R, et al. A unified model for soil shrinkage, subsidence, and cracking[J].Vadose Zone Journal,2016,15(3):1-15.

胡节.干湿交替对鄂南崩壁不同岩土层抗侵蚀特性的影响[D].武汉:华中农业大学,2019. HU J. Effects of wet-dry cycles on erosion resistance characteristics of different soil layers of collapse wall in South Hubei[D].Wuhan: Huazhong Agricultural University,2019.

TANG C S, SHI B, LIU C, et al. Influencing factors of geometrical structure of surface shrinkage cracks in clayey soils[J].Engineering Geology,2008,101(3):204-217.

ZHANG Y, HUANG Y M, WANG Z M, et al. A quantitative study on the characteristics of desiccation cracks and their effect on the shear failure characteristics of granite red soil[J].Bulletin of Engineering Geology and the Environment,2024,83(1):e27.

林敬兰,黄炎和,蒋芳市,等.崩岗土体的渗透性能机理研究[J].水土保持学报,2013,27(2):53-56. LIN J L, HUANG Y H, JIANG F S, et al. Study on the mechanism of different soil layer’s permeability in Benggang[J].Journal of Soil and Water Conservation,2013,27(2):53-56.

汪时机,杨振北,李贤,等.干湿交替下膨胀土裂隙演化与强度衰减规律试验研究[J].农业工程学报,2021,37(5):113-122. WANG S J, YANG Z B, LI X, et al. Experimental study on crack evolution and strength attenuation of expansive soil under wetting-drying cycles[J].Transactions of the Chinese Society of Agricultural Engineering,2021,37(5):113-122.

ALBRECHT B A, BENSON C H. Effect of desiccation on compacted natural clays[J].Journal of Geotechnical and Geoenvironmental Engineering,2001,127(1):67-75.

ZHU Y B, ZHENG H T, LAN H X, et al. Effect of initial water content and dry density on the self-healing of desiccation cracks in compacted hipparion red clay[J].Frontiers in Earth Science,2022,10:e963086.

唐朝生,施斌,崔玉军.土体干缩裂隙的形成发育过程及机理[J].岩土工程学报,2018,40(8):1415-1423. TANG C S, SHI B, CUI Y J. Behaviors and mechanisms of desiccation cracking of soils[J].Chinese Journal of Geotechnical Engineering,2018,40(8):1415-1423.

赵洪岩.基于DFOS的膨胀土裂隙发育过程监测试验研究[D].南京:南京大学,2012. ZHAO H Y. Research on the monitoring of expensive soil's fissures development process based on DFOS technology[D].Nanjing: Nanjing University,2012.

曹玲,王志俭,张振华.降雨-蒸发条件下膨胀土裂隙演化特征试验研究[J].岩石力学与工程学报,2016,35(2):413-421. CAO L, WANG Z J, ZHANG Z H. Experimental research of cracking process of expansive soil under rainfall infiltration and evaporation[J].Chinese Journal of Rock Mechanics and Engineering,2016,35(2):413-421.

LIN L, TANG C S, CHENG Q, et al. Desiccation cracking bebavior of soils based on digital image correlation technique[J].Chinese Journal of Geotechnical Engineering,2019,41(7):1311-1318.

周小荃.花岗岩风化岩土体裂隙发育特征及其对崩壁失稳的影响[D].武汉:华中农业大学,2023. ZHOU X Q. Crack development for grantic weathered soil and its influence on wall collapse of Benggang[D].Wuhan: Huazhong Agricultural University,2023.

段晓倩.花岗岩土体异质性与崩岗坡面土壤水文过程[D].武汉:华中农业大学,2020. DUAN X Q. Heterogeneity of granite soiland hydrological process on Benggang slope[D].Wuhan: Huazhong Agricultural University,2020.

黄婉霞,邓羽松,谢福倩,等.花岗岩崩岗不同部位土壤饱和导水率特征及其影响因素[J].应用生态学报,2020,31(7):2431-2440. HUANG W X, DENG Y S, XIE F Q, et al. Characteristics of soil saturated hydraulic conductivity on different positions and their controlling factors of granite collapsing gullies[J].Chinese Journal of Applied Ecology,2020,31(7):2431-2440.

唐朝生,王德银,施斌,等.土体干缩裂隙网络定量分析[J].岩土工程学报,2013,35(12):2298-2305. TANG C S, WANG D Y, SHI B, et al. Quantitative analysis of soil desiccation crack network[J].Chinese Journal of Geotechnical Engineering,2013,35(12):2298-2305.

曹玲,王志俭.土体表面干缩裂隙的形态参数定量分析方法[J].长江科学院院报,2014,31(4):63-67. CAO L, WANG Z J. A quantitative analysis system for morphological parameters of surface desiccation cracks in clay[J].Journal of Yangtze River Scientific Research Institute,2014,31(4):63-67.

王佳妮,马戌,张晓明.干湿循环下崩岗土体裂隙发育对其渗透性能的影响[J].水土保持学报,2021,35(1):90-95. WANG J N, MA X, ZHANG X M. Effect of fissure development of collapsed soils on their permeability under dry-wet cycle[J].Journal of Soil and Water Conservation,2021,35(1):90-95.

董薇,黄待望.干湿循环作用下红黏土裂隙发育试验研究[J].科技和产业,2022,22(10):346-350. DONG W, HUANG D W. Experimental study on fracture development of red clay under wetting and drying cycles[J].Science Technology and Industry,2022,22(10):346-350.

朱磊,陈玖泓,刘德东.土壤表面干缩裂隙形态定量分析及其数值模拟[J].农业工程学报,2016,32(14):8-14. ZHU L, CHEN J H, LIU D D. Morphological quantity analysis of soil surface shrinkage crack and its numerical simulation[J].Transactions of the Chinese Society of Agricultural Engineering,2016,32(14):8-14.

周明涛,杨森,秦健坤,等.土壤裂隙研究的回顾与展望[J].土壤通报,2017,48(4):988-995. ZHOU M T, YANG S, QIN J K, et al. Review on the research of soil cracks[J].Chinese Journal of Soil Science,2017,48(4):988-995.

朱伟振.干湿循环作用下红黏土裂隙发育规律及强度劣化机理研究[D].广西桂林:桂林理工大学,2023. ZHU W Z. Study on crack development and strength deterioration mechanism of red clay under dry-wet cycle[D].Guilin, Guangxi: Guilin University of Technology,2023.

施斌,唐朝生,王宝军,等.粘性土在不同温度下龟裂的发展及其机理讨论[J].高校地质学报,2009,15(2):192-198. SHI B, TANG C S, WANG B J, et al. Development and mechanism of desiccation cracking of clayey soil under different temperatures[J].Geological Journal of China Universities,2009,15(2):192-198.

刘俊东,唐朝生,曾浩,等.干湿循环条件下黏性土干缩裂隙演化特征[J].岩土力学,2021,42(10):2763-2772. LIU J D, TANG C S, ZENG H, et al. Evolution of desiccation cracking behavior of clays under drying-wetting cycles[J].Rock and Soil Mechanics,2021,42(10):2763-2772.

ZHOU R, WANG B T, HAN S Y, et al. Mechanisms of crack development and strength deterioration in compacted expansive soils under controlled wetting-drying conditions[J].Engineering Failure Analysis,2024,159:e108133.

刘春,王宝军,施斌,等.基于数字图像识别的岩土体裂隙形态参数分析方法[J].岩土工程学报,2008,30(9):1383-1388. LIU C, WANG B J, SHI B, et al. Analytic method of morphological parameters of cracks for rock and soil based on image processing and recognition[J].Chinese Journal of Geotechnical Engineering,2008,30(9):1383-1388.

周红艺,李辉霞,叶奇,等.华南活动崩岗崩壁土体裂隙发育规律试验研究[J].水土保持研究,2016,23(1):338-342. ZHOU H Y, LI H X, YE Q, et al. Simulation of morphological development of soil cracks in the collapsing hill region of Southern China[J].Research of Soil and Water Conservation,2016,23(1):338-342.

魏玉杰,吴新亮,蔡崇法.崩岗体剖面土壤收缩特性的空间变异性[J].农业机械学报,2015,46(6):153-159. WEI Y J, WU X L, CAI C F. Spatial variability of soil shrinkage characteristics in profile of slope disintegration body[J].Transactions of the Chinese Society for Agricultural Machinery,2015,46(6):153-159.

王娜,王佳妮,张晓明,等.控制厚度条件下崩岗土体的裂隙演化特征[J].水土保持学报,2021,35(6):175-182. WANG N, WANG J N, ZHANG X M, et al. Evolution characteristics of cracks in Benggang soil under controlled thickness[J].Journal of Soil and Water Conservation,2021,35(6):175-182.

陶禹.崩岗坡面壤中流及其水动力特征与崩岗侵蚀的关系[D].武汉:华中农业大学,2020. TAO Y. The effect of subsurface flow along a hillslope of Benggang and its hydrodynamic characteristics on Benggang erosion[D].Wuhan: Huazhong Agricultural University,2020.

段晓倩,倪晨,陈姣,等.基于含水量高频监测的花岗岩崩岗侵蚀红壤优先流研究[J].水土保持学报,2016,30(5):82-88. DUAN X Q, NI C, CHEN J, et al. Study on the preferential flow of red soil erosion in granite slope collapse with high frequency monitoring of water content[J].Journal of Soil and Water Conservation,2016,30(5):82-88.

高钰淏,陈家宙,邹自强,等.龛沟是崩岗早期发育的形态标志[J].水土保持学报,2022,36(4):105-111. GAO Y H, CHEN J Z, ZOU Z Q, et al. Niche-like ephemeral gully is a morphological symbol of the early development of Benggang[J].Journal of Soil and Water Conservation,2022,36(4):105-111.

陈亮,卢亮.土体干湿循环过程中的体积变形特性研究[J].地下空间与工程学报,2013,9(2):229-235. CHEN L, LU L. Investigation on the characteristics of volumetric change during the wet-dry cycle of the soil[J].Chinese Journal of Underground Space and Engineering,2013,9(2):229-235.

黄琬雲.土壤侵蚀预报模型中的生物结皮因子研究[D].陕西杨凌:西北农林科技大学,2023. HUANG W Y. A study on biological soil crust factors in soil erosion mode[D].Yangling, Shaanxi: Northwest A&F University,2023.

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