Abstract: To reveal the coupled deterioration mechanism of water erosion and wet-dry cycling in gypsum breccia within underground engineering, gypsum breccia from a tunnel project in Shanxi Province was selected as the research object. The samples were subjected to ten wet-dry cycles, and the apparent deterioration characteristics as well as the water absorption-dissolution evolution behavior of the gypsum breccia under cyclic wet-dry conditions were systematically analyzed. Using nuclear magnetic resonance(NMR)technology, the pore structure deterioration characteristics of gypsum breccia during the wet-dry process were characterized. By comparing the deterioration morphology of samples under static water and flowing water conditions(with a flow rate of 10 L/h), the additional deterioration effect of water flow on the wet-dry deterioration process of gypsum breccia was further investigated. On this basis, a wet-dry deterioration model of gypsum breccia was developed based on the disturbed state concept(DSC)theory, combined with P-wave velocity and porosity test results. The results showed that the interfacial bonding strength between different material zones of the gypsum breccia was weakened by wet-dry cycles, while water flow was found to accelerate gypsum dissolution and deteriorate the shallow pore structure of the samples. The deterioration of gypsum breccia was jointly accelerated by the combined actions of wet-dry cycles and hydraulic erosion. A significant correlation was observed between the attenuation of P-wave velocity and the development of the pore structure in the gypsum breccia. The DSC-based wet-dry deterioration model was shown to accurately describe the mechanical deterioration behavior of gypsum breccia under different hydraulic conditions during cyclic wet-dry processes. The findings provide valuable reference data for the engineering design of tunnels in gypsum breccia strata.
朱爱虹. 水蚀-干湿循环作用下膏溶角砾岩孔隙结构劣化特征与扰动状态模型[J]. 隧道与地下工程灾害防治, 2025, 7(4): 65-75.
ZHU Aihong. Degradation characteristics of pore structure and disturbance state model of gypsum breccia under the combined effect of water erosion and wet-dry. Hazard Control in Tunnelling and Underground Engineering, 2025, 7(4): 65-75.
[1] 周意超, 陈从新, 刘秀敏, 等. 荆门石膏矿岩遇水软化力学特性试验研究[J]. 岩土力学, 2017, 38(10): 2847-2854. ZHOU Yichao, CHEN Congxin, LIU Xiumin, et al. Experimental study on mechanical properties of water-softening gypsum rock in Jingmen[J]. Rock and Soil Mechanics, 2017, 38(10): 2847-2854. [2] 吴建勋, 任松, 欧阳汛, 等. 石膏质岩膨胀性及其对隧道仰拱影响研究[J]. 湖南大学学报(自然科学版), 2018, 45(1): 142-149. WU Jianxun, REN Song, OUYANG Xun, et al. Research on swelling of gypsiferous rock and its influence on invert arch of tunnel[J]. Journal of Hunan University(Natural Sciences), 2018, 45(1): 142-149. [3] GYSEL M. Anhydrite dissolution phenomena: three case histories of anhydrite karst caused by water tunnel operation[J]. Rock Mechanics and Rock Engineering, 2002, 35(1): 1-21. [4] 邓华锋, 周美玲, 李建林, 等. 水-岩作用下红层软岩力学特性劣化规律研究[J]. 岩石力学与工程学报, 2016, 35(增刊2): 3481-3491. DENG Huafeng, ZHOU Meiling, LI Jianlin, et al. Mechanical properties deteriorating change rule research of red-layer soft rock under water-rock interaction[J]. Chinese Journal of Rock Mechanics and Engineering, 2016, 35(Suppl.2): 3481-3491. [5] 刘新荣, 李栋梁, 张梁, 等. 干湿循环对泥质砂岩力学特性及其微细观结构影响研究[J]. 岩土工程学报, 2016, 38(7): 1291-1300. LIU Xinrong, LI Dongliang, ZHANG Liang, et al. Influence of wetting-drying cycles on mechanical properties and microstructure of shaly sandstone[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(7): 1291-1300. [6] 巩学鹏, 唐朝生, 施斌, 等. 黏性土干/湿过程中土结构演化特征研究进展[J]. 工程地质学报, 2019, 27(4): 775-793. GONG Xuepeng, TANG Chaosheng, SHI Bin, et al. Evolution of soil microstructure during drying and wetting[J]. Journal of Engineering Geology, 2019, 27(4): 775-793. [7] 傅晏. 干湿循环水岩相互作用下岩石劣化机理研究[D]. 重庆: 重庆大学, 2010: 15-46. FU Yan. Study on water-rock interaction with the cyclic drying-wetting effect on rock[D]. Chongqing: Chongqing University, 2010: 15-46. [8] 邓华锋, 胡安龙, 李建林, 等. 水岩作用下砂岩劣化损伤统计本构模型[J]. 岩土力学, 2017, 38(3): 631-639. DENG Huafeng, HUAnlong, LI Jianlin, et al. Statistical damage constitutive model of sandstone under water-rock interaction[J]. Rock and Soil Mechanics, 2017, 38(3): 631-639. [9] 刘星, 唐志成, 李璐, 等. 循环干湿处理后红砂岩节理的剪切性质试验研究[J]. 岩石力学与工程学报, 2020, 39(增刊2): 3316-3325. LIU Xing, TANG Zhicheng, LI Lu, et al. Experimental study on shear properties of red sandstone joints after cyclic wetting-drying treatment[J]. Chinese Journal of Rock Mechanics and Engineering, 2020, 39(Suppl.2): 3316-3325. [10] 祝艳波, 吴银亮, 余宏明, 等. 隧道石膏质围岩强度特性试验研究[J]. 长江科学院院报, 2013, 30(9): 53-58. ZHU Yanbo, WU Yinliang, YU Hongming, et al. Strength behavior of tunnel's gypsiferous surrounding rock[J]. Journal of Yangtze River Scientific Research Institute, 2013, 30(9): 53-58. [11] 张丛林, 侯东波, 王君. 干湿循环影响下石膏质岩的强度特性及围岩分级研究[J]. 公路, 2016, 61(10): 236-240. ZHANG Conglin, HOU Dongbo, WANG Jun. Research on the strength characteristics and surrounding rock classification of gypsum rock under the influence of drying and wetting cycles[J]. Highway, 2016, 61(10): 236-240. [12] 李亚, 余宏明, 李科, 等. 干湿循环作用下石膏岩劣化效应的试验研究[J]. 长江科学院院报, 2017, 34(3): 63-66. LI Ya, YU Hongming, LI Ke, et al. Laboratory study on degradation of gypsum rock with dry-wet cycles[J]. Journal of Yangtze River Scientific Research Institute, 2017, 34(3): 63-66. [13] 王明芳. 干湿循环作用下石膏质岩劣化特征与机制研究[D]. 武汉:中国地质大学,2018: 29-88. WANG Mingfan. Analysis of the deterioration mechanism and characteristics of drying-wetting cycles on gypsum rock[D]. Wuhan: China University of Geosciences, 2018: 29-88. [14] JIANG S, HUANG M, JIANG Y J, et al. NMR-based investigation on the wet-dry deterioration characteristics of gypsiferous rocks surrounding underground excavations[J]. Rock Mechanics and Rock Engineering, 2022, 55(4): 2323-2339. [15] 魏玉峰, 聂德新. 第三系红层中石膏溶蚀特性及其对工程的影响[J]. 水文地质工程地质, 2005, 32(2): 62-64. WEI Yufeng, NIE Dexin. The speciality of gypsum dissolution of the Neogene red clay and its influence to engineering[J]. Hydrogeology and Engineering Geology, 2005, 32(2): 62-64. [16] 吴银亮. 石膏质岩工程地质特性及其对隧道混凝土结构危害机制研究[D]. 北京: 中国地质大学, 2013: 31-61. WU Yinliang. The engineering geological characteristics of gypsum rock and the damage mechanism on tunnel concrete structure[D]. Beijing: China University of Geosciences, 2013: 31-61. [17] SADEGHIAMIRSHAHIDI M, VITTON S J. Laboratory study of gypsum dissolution rates for an abandoned underground mine[J]. Rock Mechanics and Rock Engineering, 2019, 52(7): 2053-2066. [18] 刘志国, 江松, 黄明, 等. 复杂地下水环境下膏溶角砾岩隧道围岩力学性质劣化研究[J]. 隧道建设(中英文), 2021, 41(7): 1150-1158. LIU Zhiguo, JIANG Song, HUANG Ming, et al. A law for degradation of mechanical properties of gypsum breccia surrounding tunnels in a complex groundwater environment[J]. Tunnel Construction, 2021, 41(7): 1150-1158. [19] 黄彦华, 张坤博, 杨圣奇, 等. 高温后花岗岩微观特征及其对强度影响规律研究[J]. 岩石力学与工程学报, 2025, 44(2): 359-372. HUANG Yanhua, ZHANG Kunbo, YANG Shengqi, et al. Study on the microstructure characteristic and its influence on strength properties of granite specimens after high temperature treatment[J]. Chinese Journal of Rock Mechanics and Engineering, 2025, 44(2): 359-372. [20] 谭茂金, 赵文杰. 用核磁共振测井资料评价碳酸盐岩等复杂岩性储集层[J]. 地球物理学进展, 2006, 21(2): 489-493. TAN Maojin, ZHAO Wenjie. Description of carbonate reservoirs with NMR log analysis method[J]. Progress in Geophysics, 2006, 21(2): 489-493. [21] 宋勇军, 卢云龙, 王双龙, 等. 岩石冻融过程未冻水含量演化特征及对力学特性影响研究[J]. 岩土力学, 2025, 46(4): 1049-1059. SONG Yongjun, LU Yunlong, WANG Shuanglong, et al. Evolution characteristics of unfrozen water content and its influence on mechanical properties of rock during freeze-thaw process[J]. Rock and Soil Mechanics, 2025, 46(4): 1049-1059. [22] XIE K N, JIANG D Y, SUN Z G, et al. NMR, MRI and AE statistical study of damage due to a low number of wetting-drying cycles in sandstone from the Three Gorges Reservoir area[J]. Rock Mechanics and Rock Engineering, 2018, 51(11): 3625-3634. [23] LIU L, FANG Z Y, QI C C, et al. Experimental investigation on the relationship between pore characteristics and unconfined compressive strength of cemented paste backfill[J]. Construction and Building Materials, 2018, 179: 254-264. [24] 周科平, 胡振襄, 李杰林, 等. 基于核磁共振技术的大理岩卸荷损伤演化规律研究[J]. 岩石力学与工程学报, 2014, 33(增刊2): 3523-3530. ZHOU Keping, HU Zhenxiang, LI Jielin, et al. Study on the evolution law of marble unloading damage based on NMR technology[J]. Chinese Journal of Rock Mechanics and Engineering, 2014, 33(Suppl.2): 3523-3530. [25] DARLINGTON W J, RANJITH P G, CHOI S K. The effect of specimen size on strength and other properties in laboratory testing of rock and rock-like cementitious brittle materials[J]. Rock Mechanics and Rock Engineering, 2011, 44(5): 513-529. [26] SHARMA P K, SINGH T N. A correlation between P-wave velocity, impact strength index, slake durability index and uniaxial compressive strength[J]. Bulletin of Engineering Geology and the Environment, 2008, 67(1): 17-22. [27] DESAI B C S. Mechanicsof materials and interfaces: the disturbed state concept[M]. Boca Raton: CRC Press, 2001: 46-47.
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