Research on Characteristics and Mechanism of Micro-structure Variation in Sandstone under Water-rock Interaction

胡玉; 邓华锋; 李建林; 张吟钗; 王伟; 胡亚运

doi:10.13409/j.cnki.jdpme.2018.02.009

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Research on Characteristics and Mechanism of Micro-structure Variation in Sandstone under Water-rock Interaction

更新时间：2025-12-11

- Research on Characteristics and Mechanism of Micro-structure Variation in Sandstone under Water-rock Interaction
- Vol. 38, Issue 2, Pages: 265-273+281(2018)
- 作者机构：
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- DOI：10.13409/j.cnki.jdpme.2018.02.009
  CLC： V223
- Published：2018
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[1]胡玉,邓华锋,李建林,张吟钗,王伟,胡亚运.水-岩作用下砂岩微细观结构变化特性及机理研究[J].防灾减灾工程学报,2018,38(02):265-273+281.

胡玉, 邓华锋, 李建林, et al. Research on Characteristics and Mechanism of Micro-structure Variation in Sandstone under Water-rock Interaction[J]. 2018, 38(2): 265-273+281.
[1]胡玉,邓华锋,李建林,张吟钗,王伟,胡亚运.水-岩作用下砂岩微细观结构变化特性及机理研究[J].防灾减灾工程学报,2018,38(02):265-273+281. DOI： 10.13409/j.cnki.jdpme.2018.02.009.

胡玉, 邓华锋, 李建林, et al. Research on Characteristics and Mechanism of Micro-structure Variation in Sandstone under Water-rock Interaction[J]. 2018, 38(2): 265-273+281. DOI： 10.13409/j.cnki.jdpme.2018.02.009.

摘要

为了较好地分析水-岩作用下库岸边坡消落带岩体的劣化机理

设计进行了考虑库水压力升降变化和浸泡-风干循环的水-岩作用试验。研究结果表明:（1）在水-岩作用过程中

砂岩的单轴抗压强度劣化趋势明显

其中前6期抗压强度劣化趋势较为显著

6次水-岩作用之后

岩样的强度劣化趋势逐渐趋于缓慢。（2）随着水-岩作用周期的增加

岩石内部孔隙、裂隙逐渐发育、汇集

矿物颗粒逐渐软化、分解

使得岩石微观结构逐渐趋于松散。（3）水-岩作用下砂岩劣化的进程中

首先是岩样中胶结物的溶解、溶蚀

然后是失去胶结物包裹的矿物颗粒表面发生水-岩物理化学作用

最后是矿物颗粒本身软化、分解。（4）水-岩作用过程中

岩样内部胶结物的溶解、溶蚀对水-岩作用前期的宏观力学性质影响明显

岩石矿物颗粒本身的软化、分解对水-岩作用后期的力学性质影响明显。相关研究成果可为库岸边坡消落带水-岩作用机理分析提供较好的参考。

Abstract

In order to better understand the degradation mechanism of rock mass in the reservoir bank under water-rock interaction

a water-rock interaction experiment considering reservoir water level fluctuation and soaking-air drying cycle was designed and conducted.Research results show that:（1）It’s obvious that the axial compression strength of sandstone decreases dramatically during the water-rock interaction process

especially in the first-six periods.After six waterrock interaction periods

the strength deterioration of rock samples tends to be slower.（2）With the increase of water-rock interaction cycles

the rock sample’s fracture is constantly deepening and broadening and the particles are slowly softening and decomposing

leading to a gradually loose of the rock microstructure.（3）During the sandstone degradation process under water-rock interaction

the dissolution and corrosion of cement begin first

and then the physical and chemical interactions between water and rock generate on the surface of mineral particles without the protection of cement package.The last process is the softening and decomposition of mineral particles themselves.（4）During the water-rock interaction process

it is obvious that the macroscopic mechanical properties of rock samples are controlled by the dissolution and corrosion of cement in the early stages and by softening of mineral particles in the later stages.The research results can provide a good reference for the analysis of the water-rock interaction mechanism of the reservoir bank slope.

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references

岩石变形劣化全过程细观试验与细观损伤力学模型研究 [J]. 朱珍德,黄强,王剑波,邵建富,王伟. 岩石力学与工程学报 . 2013(06)

饱水-风干循环作用下砂岩强度劣化规律试验研究 [J]. 邓华锋,李建林,朱敏,王孔伟,王乐华,邓成进. 岩土力学 . 2012(11)

浸泡-风干循环作用对砂岩变形及破坏特征影响研究 [J]. 邓华锋,李建林,刘杰,朱敏,罗骞,原先凡. 岩土工程学报 . 2012(09)

饱和-风干循环过程中砂岩次生孔隙率变化规律研究 [J]. 邓华锋,李建林,王孔伟,刘杰,朱敏,鲁涛. 岩土力学 . 2012(02)

循环荷载下花岗岩细观损伤量化试验研究 [J]. 倪骁慧,朱珍德,李晓娟,李志敬,朱明礼. 岩土力学 . 2011(07)

长石砂岩次生溶孔的形成机理 [J]. 李汶国,张晓鹏,钟玉梅. 石油与天然气地质 . 2005(02)

软岩在饱水过程中微观结构变化规律研究 [J]. 周翠英,邓毅梅,谭祥韶,刘祚秋,林春秀. 中山大学学报(自然科学版) . 2003(04)

水-岩化学作用的岩石宏观力学效应的试验研究 [J]. 汤连生,张鹏程,王思敬. 岩石力学与工程学报 . 2002(04)

岩石断口微观断裂机理分析与实验研究 [J]. 刘小明,李焯芬. 岩石力学与工程学报 . 1997(06)

岩石微破裂发育的扫描电镜即时观测研究 [J]. 赵永红,黄杰藩,王仁. 岩石力学与工程学报 . 1992(03)

大理岩静态和循环荷载试件的电镜试验分析 [J]. 卢应发,张梅英,葛修润. 岩土力学 . 1990(04)

蚀变凝灰岩的微观特性与水稳定性的关系 [J]. 谭罗荣. 岩土工程学报 . 1990(06)

岩爆岩石断口扫描电镜分析及岩爆渐进破坏过程 [J]. 谭以安. 电子显微学报 . 1989(02)

岩石断口分析 [J]. 李先炜,兰勇瑞,邹俊兴. 中国矿业学院学报 . 1983(01)

干湿循环水岩相互作用下岩石劣化机理研究 [D]. 傅晏. 重庆大学 2010

库水变幅带水—岩作用机理和作用效应研究 [D]. 邓华锋. 武汉大学 2010

Prediction of water–rock interaction and porosity evolution in a granitoid-hosted enhanced geothermal system, using constraints from the 5 km Basel-1 well [J] . P. Alt-Epping,L.W. Diamond,M.O. H?ring,F. Ladner,D.B. Meier. Applied Geochemistry . 2013

Long-term spatio-temporal hydrochemical and 222 Rn tracing to investigate groundwater flow and water–rock interaction in the Gran Sasso （central Italy） carbonate aquifer [J] . Marco Tallini,Barbara Parisse,Marco Petitta,Michele Spizzico. Hydrogeology Journal . 2013 (7)

The standard thermodynamic properties of vermiculites and prediction of their occurrence during water–rock interaction [J] . Carmine Apollaro,Luigi Marini,Teresa Critelli,Rosanna De Rosa. Applied Geochemistry . 2013

Microstructure effects on microcracking and brittle failure of dolomites [J] . Yossef.H. Hatzor,Alon Zur,Yaakov Mimran. Tectonophysics . 1997 (3)

Microcracking and grain size effect in Yuen Long marbles [J] . Robina H.C. Wong,K.T. Chau,P. Wang. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts . 1996 (5)

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