Preliminary Study of the Development and Stability of Niches in Collapsing Wall in Benggang Erosion Areas of Southern China

HE Ling; DENG Yusong

doi:10.13870/j.cnki.stbcxb.2023.03.008

您当前的位置：

首页 >

文章列表页 >

Preliminary Study of the Development and Stability of Niches in Collapsing Wall in Benggang Erosion Areas of Southern China

更新时间：2025-03-12

- Preliminary Study of the Development and Stability of Niches in Collapsing Wall in Benggang Erosion Areas of Southern China
- Vol. 37, Issue 3, Pages: 60-65(2023)
- 作者机构：
  
  广西大学林学院,南宁,530004
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2023.03.008
  CLC： S157.1
- Published：2023
- 稿件说明：
移动端阅览
HE Ling, DENG Yusong. Preliminary Study of the Development and Stability of Niches in Collapsing Wall in Benggang Erosion Areas of Southern China[J]. 2023, 37(3): 60-65.
DOI：

HE Ling, DENG Yusong. Preliminary Study of the Development and Stability of Niches in Collapsing Wall in Benggang Erosion Areas of Southern China[J]. 2023, 37(3): 60-65. DOI： 10.13870/j.cnki.stbcxb.2023.03.008.

摘要

南方花岗岩崩岗侵蚀区崩壁常见形似内凹洞的特殊地貌(龛穴)

该地貌的发育可引起崩壁失稳并扩大崩岗侵蚀范围。通过刻画龛穴形态演变过程

研究龛穴发生的物质条件与驱动因素

并结合力矩分析方法构建力学模型评价崩壁及龛穴稳定性。研究表明:龛穴形态演变经历"雏形—发育—形成"3个过程

剖面土层异质性是龛穴发育的基础条件

水力与重力作为外部因素共同作用驱动龛穴发育。龛穴稳定性随其高度增加、角度减小而降低。龛穴的发育可能是崩岗溯源侵蚀启动的标志

遏制龛穴形成有利于提高崩壁稳定性

研究结果为崩岗侵蚀治理提供理论依据。

Abstract

Special features resembling internal hollows (niches-like ephemeral gully head) are common in the collapsing walls of granite Benggang erosion in southern China. This study investigated the material conditions and drivers of niches occurrence by describing the morphological evolution of the niches

and combined with moment analysis methods to construct mechanical models to evaluate the stability of collapsing walls and niches. Studies have shown that niches morphology evolves through three stages of "embryonic-development-formation". Soil heterogeneity in the profile is the underlying condition for niche development

with hydrodynamics and gravity acting together as external factors to drive niche development. The stability of the niche decreases as its height increases and its angle decreases. The development of niches may be a sign of the initiation of headcut erosion of the Benggang

and the containment of niche formation is conducive to improving the stability of the collapsing wall. The results of the study provide a theoretical basis for Benggang erosion management.

关键词

Keywords

references

蔡强国,陆兆熊,王贵平.黄土丘陵沟壑区典型小流域侵蚀产沙过程模型[J].地理学报,1996,51(2):108-117.

郑粉莉,徐锡蒙,覃超.沟蚀过程研究进展[J].农业机械学报,2016,47(8):48-59,116.

张光辉,杨扬,符素华,等.切沟侵蚀预报研究进展与展望[J].地球科学进展,2022,37(6):551-562.

梁音,宁堆虎,潘贤章,等.南方红壤区崩岗侵蚀的特点与治理[J].中国水土保持,2009(1):31-34.

Wei Y J, Liu Z, Wu X L, et al. Can Benggang be regarded as gully erosion?[J].Catena,2021,207:e105648.

Liu W P, Song X Q, Luo J, et al. The processes and mechanisms of collapsing erosion for granite residual soil in southern China[J].Journal of Soils and Sediments,2020,20(2):992-1002.

Liao Y S, Yuan Z J, Zheng M G, et al. The spatial distribution of Benggang and the factors that influence it[J].Land Degration and Development,2019,30(18):2323-2335.

Deng Y S, Duan X Q, Ding S W, et al. Suction stress characteristics in granite red soils and their relationship with the collapsing gully in south China[J].Catena,2018,171:505-522.

王秋霞,丁树文,夏栋,等.花岗岩崩岗区不同层次土壤分离速率定量研究[J].水土保持学报,2016,30(3):65-70.

林金石,庄雅婷,黄炎和,等.不同剪切方式下崩岗红土层抗剪特征随水分变化规律[J].农业工程学报,2015,31(24):106-110.

Liu X L, Qiu J N, Zhang D L. Characteristics of slope runoff and soil water content in benggang colluvium under simulated rainfall[J].Journal of Soils and Sediments,2018,18(1):39-48.

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.

Wang C, Li Z W, Cai B L, et al. Effect of root system of the Dicranopteris dichotoma on the soil unconfined compressive strength of collapsing walls in hilly granite area of South[J].Catena,2022,216(B):e106411.

丁树文,蔡崇法,张光远.鄂东南花岗地区重力侵蚀及崩岗形成规律的研究[J].南昌水专学报,1995(增刊1):50-54.

Peng J B, Sun P, Ogbonnaya L, et al. Loess caves, a special kind of geo-hazard on loess plateau, northwestern China[J].Engineering Geology,2018,236:79-88.

郑炜珊,耿豪鹏,顾国强,等.定西于家山黄土洞穴的分布特征与侵蚀临界研究[J].水土保持学报,2020,34(4):112-117,123.

张宝军,熊东红,张光辉,等.基于力矩法的元谋干热河谷冲沟沟头土体稳定性模拟与验证[J].农业工程学报,2018,34(15):133-140.

廖义善,唐常源,袁再健,等.南方红壤区崩岗侵蚀及其防治研究进展[J].土壤学报,2018,55(6):1297-1312.

Liao D L, Deng Y S, Duan X Q, et al. Variations in weathering characteristics of soil profiles and response of the Atterberg limits in the granite hilly area of South China[J].Catena,2022,215:e106325.

Xia D, Deng Y S, Wang S L, et al. Fractal features of soil particle-size distribution of different weathering profiles of the collapsing gullies in the hilly granitic region, south China[J].Natural Hazards,2015,79(1):455-478.

Sheng H, Qiu H J, Wang N L, et al. The influence of loess cave development upon landslides and geomorphologic evolution:A case study from the northwest Loess Plateau, China[J].Geomorphology,2020,359:e107167.

Chen A Q, Zhang D, Peng H, et al. Experimental study on the development of collapse of overhanging layers of gully in Yuanmou Valley, China[J].Catena,2013,109:177-185.

Collison A J C. The cycle of instability:Stress release and fissure flow as controls on gully head retreat[J].Hydrological Process,2001,15:3-12.

Addisie M B, Ayele G K, Gessess A A, et al. Gully head retreat in the sub-humid ethiopian highlands:The ene-chilala catchment[J].Land Degradation and Development,2017,28:1579-1588.

Jiang F S, He K W, Huang M Y, et al. Impacts of near soil surface factors on soil detachment process in benggang alluvial fans[J].Journal of Hydrology,2020,590:e125274.

Liu H H, Qian F, Ding W F, et al. Using 3D scanner to study gully evolution and its hydrological analysis in the deep weathering of southern China[J].Catena,2019,183(C):e104218.

Duan X Q, Deng Y S, Tao Y, et al. The soil configuration on granite residuals affects Benggang erosion by altering the soil water regime on the slope[J].International Soil and Water Conservation Research,2021,9(3):419-432.

Tao Y, He Y B, Duan X Q, et al. Preferential flows and soil moistures on a Benggang slope:Determined by the water and temperature comonitoring[J].Journal of Hydrology,2017,553:678-690.

He L, Deng Y S, Tang Q Y, et al. Effects of the Dicranopteris linearis root system and initial moisture content on the soil disintegration characteristics of gully erosion[J].Journal of Mountain Science,2022,19(12):3548-3567.

Liu X Y, Zhang X W, Kong L W, et al. Formation mechanism of collapsing gully in southern China and the relationship with granite residual soil:A geotechnical perspective[J].Catena,2022,210:e105890.

冯延云,张晓明,朱丽丽,等.初始含水率对崩岗土体抗拉特性的影响[J].水土保持学报,2019,33(5):41-49.

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.

Flores-Cervantes J H, Istanbulluoglu E, Bras R L. Development of gullies on the landscape:A model of headcut retreat resulting from plunge pool erosion[J].Journal of Geophysical Research,2006,111:e01010.

Istanbulluoglu E, Bras R L, Homero F C, et al. Implications of bank failures and fluvial erosion for gully development:Field observations and modeling[J].Journal of Geophysical Research,2005,110:e01014.

Views

921

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Morphological and Spatial Distribution Characteristics of Niches in Collapsing Walls in Southeastern Guangxi Benggang Erosion Area

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

Related Author

LUO Shuyu

HE Ling

LIN Zhe

WANG Jianyu

DUAN Xiaoqian

DENG Yusong

HAN Jiexin

DENG Zhihui

Related Institution

College of Forestry， Guangxi University

College of Agriculture， Guangxi University

Agricultural College of Guangxi University

Forestry College of Guangxi University

⁰