A Damage Constitutive Model of Sandy Slate Considering Chemical Corrosion Interaction
-
摘要: 假设经化学腐蚀的岩石受荷后微元的破坏服从Weibull分布,结合损伤力学理论,考虑化学腐蚀与荷载耦合作用和压密作用,建立相应的分段单轴损伤本构模型,模拟分析化学腐蚀对砂板岩应力应变关系的影响,且用不同浸泡时间后砂板岩单轴压缩试验结果进行验证。结果表明,模拟结果与试验结果较为吻合,该本构模型能够较好反映化学腐蚀作用下砂板岩峰前应力应变关系,具有合理性和可行性。Abstract: It was assumed that the micro element failure of rock considering chemical corrosion obeyed the Weibull distribution after loading. Combined with the damage mechanics theory, considering the coupling effect of chemical corrosion and load and compaction, the corresponding segmental uniaxial damage constitutive model was established. The influence of chemical corrosion interaction on the stress-strain relationship of sandy slate was simulated and analyzed, and the uniaxial compression test results of sandy slate after different soaking time were used to verify. The results show that the simulation results are in good agreement with the experimental results, and the constitutive model can well reflect the prepeak stressstrain relationship of sandy slate under chemical corrosion, which is reasonableness and feasibility.
-
Keywords:
- sandy slate /
- chemical corrosion /
- damage /
- Weibull distribution /
- constitutive model
-
-
[1] 汤连生.水-岩土反应的力学与环境效应研究[J].岩石力学与工程学报,2000, 19(5):681-682. [2] 王伟,刘桃根,吕军,等.水岩化学作用对砂岩力学特性影响的试验研究[J].岩石力学与工程学报,2012, 31(S2):3607-3617. [3] 韩铁林,师俊平,陈蕴生,等.水化学作用下钙质砂岩力学特性的劣化及能量机制试验研究[J].岩石力学与工程学报,2015, 34(S2):3793-3804. [4] 乔丽苹,刘建,冯夏庭.砂岩水物理化学损伤机制研究[J].岩石力学与工程学报,2007, 26(10):2117-2124. [5] XIE S Y, SHAO J F, XU W Y. Influences of chemical degradation on mechanical behaviour of a limestone[J]. International Journal of Rock Mechanics and Mining Sciences, 2011, 48(5):741-747.
[6] HU D W, ZHOU H, HU Q Z, et al. A hydro-mechanical-chemical coupling model for geomaterial with both mechanical and chemical damages considered[J]. Acta Mechanica Solida Sinica, 2012, 25(4):361-376.
[7] 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. [8] 姜立春,温勇. AMD蚀化下砂岩的损伤本构模型[J].中南大学学报(自然科学版),2011, 42(11):3502-3506. [9] 刘建,乔丽苹,李鹏.砂岩弹塑性力学特性的水物理化学作用效应:试验研究与本构模型[J].岩石力学与工程学报,2009, 28(1):20-29. [10] 夏冬,杨天鸿,徐涛,等.浸水时间对饱水岩石损伤破坏过程中声发射特征影响的试验[J].煤炭学报,2015, 40(S2):337-345. [11] 王伟,李雪浩,朱其志,等.水化学腐蚀对砂板岩力学性能影响的试验研究[J].岩土力学,2017, 38(9):2559-2566. [12] 王艳磊,唐建新,江君,等.水-岩化学作用下灰砂岩的力学特性与参数损伤效应[J].煤炭学报,2017, 42(1):227-235. [13] 江宗斌,姜谙男,李宏.腐蚀环境板岩贯通裂隙渗透特性变化规律[J].煤炭学报,2016, 41(8):1954-1962. [14] 申林方,冯夏庭,潘鹏志,等.单裂隙花岗岩在应力-渗流-化学耦合作用下的试验研究[J].岩石力学与工程学报,2010, 29(7):1379-1388. [15] 姜立春,温勇,吴爱祥. AMD蚀化砂岩细观力学效应[J].煤炭学报,2012, 37(6):931-935. [16] 张慧梅,雷利娜,杨更社.等围压条件下岩石本构模型及损伤特性[J].中国矿业大学学报,2015, 44(1):59-63. [17] LEMAITRE J. How to use damage mechanics[J]. Nuclear Engineering and Design, 1984, 80(2):233-245.
[18] 赵红鹤,高富强,杨小林.基于不同分布的分段式岩石损伤本构模型[J].矿业研究与开发,2015, 35(4):64-67. [19] 曹文贵,赵衡,张玲,等.考虑损伤阀值影响的岩石损伤统计软化本构模型及其参数确定方法[J].岩石力学与工程学报, 2008, 27(6):1148-1154. [20] 曹文贵,张超,贺敏,等.考虑空隙压密阶段特征的岩石应变软化统计损伤模拟方法[J].岩土工程学报,2016, 38(10):1754-1761. [21] 霍润科,李宁,刘汉东.受酸腐蚀砂岩的统计本构模型[J].岩石力学与工程学报,2005, 24(11):1852-1856. -
期刊类型引用(3)
1. 陈有亮,陈奇键,肖鹏,杜曦,王苏然. 考虑水化学损伤的岩石真三轴蠕变本构模型. 力学学报. 2023(01): 159-168 . 百度学术
2. Qijian Chen,Youliang Chen,Peng Xiao,Xi Du,Yungui Pan,Rafig Azzam. Mechanical properties and damage constitutive model of sandstone after acid corrosion and high temperature treatments. International Journal of Mining Science and Technology. 2023(06): 747-760 . 必应学术
3. 陈有亮,陈奇键,肖鹏,杜曦,王苏然. 岩石化学腐蚀-围压损伤本构模型与离散元模拟研究. 固体力学学报. 2022(06): 703-715 . 百度学术
其他类型引用(8)
计量
- 文章访问数: 67
- HTML全文浏览量: 0
- PDF下载量: 3
- 被引次数: 11