Water-rock /soil interaction reflected by the chemical characteristics of groundwater of Jichang landslide in Guizhou Province

LIU Jianqiang; XU Qiang; ZHENG Guang; CHEN Da; WANG Zhuo; JIANG Jinjing

doi:10.16030/j.cnki.issn.1000-3665.202103009

Volume 50 Issue 2

Mar. 2023

Turn off MathJax

Article Contents

Article Navigation > Hydrogeology & Engineering Geology > 2023 > 50(2): 132-140

LIU Jianqiang, XU Qiang, ZHENG Guang, et al. Water-rock /soil interaction reflected by the chemical characteristics of groundwater of Jichang landslide in Guizhou Province[J]. Hydrogeology & Engineering Geology, 2023, 50(2): 132-140 doi: 10.16030/j.cnki.issn.1000-3665.202103009

Citation:

LIU Jianqiang, XU Qiang, ZHENG Guang, et al. Water-rock /soil interaction reflected by the chemical characteristics of groundwater of Jichang landslide in Guizhou Province[J]. Hydrogeology & Engineering Geology, 2023, 50(2): 132-140 doi: 10.16030/j.cnki.issn.1000-3665.202103009

Citation:

PDF( 4643 KB)

Water-rock /soil interaction reflected by the chemical characteristics of groundwater of Jichang landslide in Guizhou Province

doi: 10.16030/j.cnki.issn.1000-3665.202103009

State Key Laboratory of Geohazard Prevention and Geo-environment Protection (Chengdu University of Technology), Chengdu, Sichuan　610059, China

Received Date: 2021-03-02
Rev Recd Date: 2021-07-18

Available Online: 2023-03-14

Publish Date: 2023-03-15

Abstract

Abstract

The water-rock/soil interaction of a landslide is a complex physical and chemical synthesis, which seriously affects the stability of the slope. Research on the water-rock/soil interaction of a landslide on the occurrence of geological disasters is relatively weak. This article takes the Jichang landslide as the research object, analyzes the characteristics of the mineral composition and chemical composition of the rock and soil in the landslide area, combines the compositional changes of bedrock fissure water and atmospheric precipitation in the area, and uses the principal component analysis method to study the water-rock of the Jichang landslide The process of action and the influence of water and rock evolution on the stability of landslides are analyzed. The results show that: (1) The weathering process of basalt in the sliding body is a water-rock interaction coupled by mechanical crushing-mineral alteration, occurring on “micro-micro-macro” three scales. (2) The first three factors, accounting for 49.365%, 27.135%, and 15.092% of the total variance, respectively, are selected to analyze the chemical characteristics of groundwater. The main factor Z₁ reflects the control effect of the dissolution of basalt primary minerals on the chemical composition of the groundwater, the main factor Z₂ reflects the evaporation of groundwater and the precipitation of minerals in which the solubility of SiO₂ changes with pH, and the main factor Z₃ reflects the ion exchange between groundwater and rock (soil) with the main participating ions being Mg²⁺ and K⁺. (3) The products of water-rock interaction are mainly clay minerals such as illite, smectite and chlorite, which increase the content of clay minerals in the structural plane of the rock mass, deteriorate and damage the rock mass, significantly influcing the formation of slip zones and the disintegration of landslides. The results of principal component analysis of groundwater can reflect the main process of interaction between landslide groundwater and rock/soil.
- Jichang landslide,
- water-rock/soil interaction,
- groundwater,
- chemical characteristics,
- principal components analysis method (PCA),
- mineral composition

FullText(HTML)

References(20)

References

[1]	徐则民,黄润秋,唐正光. 硅酸盐矿物溶解动力学及其对滑坡研究的意义[J]. 岩石力学与工程学报,2005,24(9):1479 − 1491. [XU Zemin,HUANG Runqiu,TANG Zhengguang. Kinetics of silicate mineral dissolution and its implications for landslide studies[J]. Chinese Journal of Rock Mechanics and Engineering,2005,24(9):1479 − 1491. (in Chinese with English abstract) doi: 10.3321/j.issn:1000-6915.2005.09.004
[2]	LASAGA A C. Chemical kinetics of water-rock interactions[J]. Journal of Geophysical Research:Solid Earth,1984,89(Sup6):4009 − 4025. doi: 10.1029/JB089iB06p04009
[3]	SHUZUI Haruo. Process of slip-surface development and formation of slip-surface clay in landslides in Tertiary volcanic rocks,Japan[J]. Engineering Geology,2001,61(4):199 − 220. doi: 10.1016/S0013-7952(01)00025-4
[4]	WEN Baoping,AYDIN A. Mechanism of a rainfall-induced slide-debris flow:Constraints from microstructure of its slip zone[J]. Engineering Geology,2005,78(1/2):69 − 88.
[5]	易连兴. 西南岩溶山区复合水动力场滑坡影响模式:以关岭县大寨滑坡为例[J]. 水文地质工程地质,2020,47(4):43 − 50. [YI Lianxing. Impact model of landslide with complex hydrodynamic field in karst mountain areas of Southwest China:A case study of the Dazhai landslide in Guanling County[J]. Hydrogeology & Engineering Geology,2020,47(4):43 − 50. (in Chinese with English abstract)
[6]	严春杰, 唐辉明, 陈洁渝, 等. 三峡库区典型滑坡滑带土微结构和物质组分研究[J]. 岩土力学, 2002, 23（增刊1）: 23 − 26 YAN Chunjie, TANG Huiming, CHEN Jieyu, et al. Studies of soil microstructures and compositions of slipping zone in reservior district of Three Gorges Profect[J]. Rock and Soil Mechanics, 2002, 23（Sup 1）: 23 − 26. （in Chinese with English abstract）
[7]	江洎洧,项伟,曾雯,等. 三峡库区黄土坡临江滑坡体水岩(土)相互作用机理[J]. 岩土工程学报,2012,34(7):1209 − 1216. [JIANG Jiwei,XIANG Wei,ZENG Wen,et al. Water-rock(soil) interaction mechanism of Huangtupo riverside landslide in Three Gorges Reservoir[J]. Chinese Journal of Geotechnical Engineering,2012,34(7):1209 − 1216. (in Chinese with English abstract)
[8]	周翠英,邓毅梅,谭祥韶,等. 软岩在饱水过程中水溶液化学成分变化规律研究[J]. 岩石力学与工程学报,2004,23(22):3813 − 3817. [ZHOU Cuiying,DENG Yimei,TAN Xiangshao,et al. Testing study on variation regularities of solution components in saturation of soft rocks[J]. Chinese Journal of Rock Mechanics and Engineering,2004,23(22):3813 − 3817. (in Chinese with English abstract) doi: 10.3321/j.issn:1000-6915.2004.22.015
[9]	孙德安,李培,高游,等. 红黏土浸水变形特性试验研究[J]. 水文地质工程地质,2015,42(5):74 − 78. [SUN Dean,Li Pei,Gao You,et al. An experimental study of deformation characteristics of lateritic clay due to wetting[J]. Hydrogeology & Engineering Geology,2015,42(5):74 − 78. (in Chinese with English abstract)
[10]	刘立才,郑凡东,李炳华,等. 南水北调水源在密怀顺水源地回灌的地下水水质变化试验[J]. 水文地质工程地质,2015,42(4):18 − 22. [LIU Licai,ZHENG Fandong,LI Binghua,et al. Experiment of groundwater quality change for simulating the South-to-North water into the Mihuaishun aquifer[J]. Hydrogeology & Engineering Geology,2015,42(4):18 − 22. (in Chinese with English abstract)
[11]	郑光,许强,刘秀伟,等. 2019年7月23日贵州水城县鸡场镇滑坡-碎屑流特征与成因机理研究[J]. 工程地质学报,2020,28(3):541 − 556. [ZHENG Guang,XU Qiang,LIU Xiuwei,et al. The Jichang landslide on July 23,2019 in Shuicheng,Guizhou:Characteristics and failure mechanism[J]. Journal of Engineering Geology,2020,28(3):541 − 556. (in Chinese with English abstract)
[12]	王志兵,申林方,徐则民. 头寨滑坡地下水化学特征及其反映的水-岩(土)相互作用[J]. 水文地质工程地质,2016,43(1):111 − 116. [WANG Zhibing,SHEN Linfang,XU Zemin. Hydrochemical characteristics and their implication for the water-rock/soil interaction in the Touzhai landslide[J]. Hydrogeology & Engineering Geology,2016,43(1):111 − 116. (in Chinese with English abstract)
[13]	李志强,许强,李姝,等. 按主成分分析法研究黄土灌溉区水-岩(土)相互作用[J]. 科学技术与工程,2017,17(23):161 − 167. [LI Zhiqiang,XU Qiang,LI Shu,et al. Study on water-rock/soil interaction in loess irrigation area based on the principal component analysis[J]. Science Technology and Engineering,2017,17(23):161 − 167. (in Chinese with English abstract) doi: 10.3969/j.issn.1671-1815.2017.23.026
[14]	王志兵,徐则民. 头寨滑坡玄武岩腐岩的岩石化学和矿物学特征[J]. 矿物学报,2008,28(4):447 − 454. [WANG Zhibing,XU Zemin. Petrochemistry and mineralogy of basalt saprolite in Touzhai landslide[J]. Acta Mineralogica Sinica,2008,28(4):447 − 454. (in Chinese with English abstract) doi: 10.3321/j.issn:1000-4734.2008.04.017
[15]	许强. 对地质灾害隐患早期识别相关问题的认识与思考[J]. 武汉大学学报·信息科学版,2020,45(11):1651 − 1659. [XU Qiang. Understanding and consideration of related issues in early identification of potential geohazards[J]. Geomatics and Information Science of Wuhan University,2020,45(11):1651 − 1659. (in Chinese with English abstract)
[16]	沈钦华,王火焰,周健民,等. 含钾矿物中钾的释放及其与溶液环境中离子种类的关系[J]. 土壤,2009,41(6):862 − 868. [SHEN Qinhua,WANG Huoyan,ZHOU Jianmin,et al. Dynamic release of potassium from potassium bearing minerals as affected by ion species in solution[J]. Soils,2009,41(6):862 − 868. (in Chinese with English abstract)
[17]	马水山,雷俊荣,张保军,等. 滑坡体水岩作用机制与变形机理研究[J]. 长江科学院院报,2005,22(5):37 − 39. [MA Shuishan,LEI Junrong,ZHANG Baojun,et al. Study on rock-water interaction and deformation mechanism of landslide[J]. Journal of Yangtze River Scientific Research Institute,2005,22(5):37 − 39. (in Chinese with English abstract) doi: 10.3969/j.issn.1001-5485.2005.05.011
[18]	SOEDER D J. The Marcellus shale:Resources and reservations[J]. Eos,Transactions American Geophysical Union,2010,91(32):277 − 278. doi: 10.1029/2010EO320001
[19]	唐良琴,聂德新,任光明. 软弱夹层粘粒含量与抗剪强度参数的关系分析[J]. 中国地质灾害与防治学报,2003,14(2):58 − 62. [TANG Liangqin,NIE Dexin,REN Guangming. The relational analysis between the clay grain content and strength characteristics of weak intercalated layer[J]. The Chinese Journal of Geological Hazard and Control,2003,14(2):58 − 62. (in Chinese with English abstract)
[20]	HERMANRUD C,VENSTAD J M,CARTWRIGHT J,et al. Consequences of water level drops for soft sediment deformation and vertical fluid leakage[J]. Mathematical Geosciences,2013,45(1):1 − 30. doi: 10.1007/s11004-012-9435-0