|
|
含交叉节理黄砂岩不同冲击载荷作用下破坏机理的研究
|
Abstract:
为了研究力–热耦合作用下含交叉节理岩石的动力学性质，本文利用SHPB实验装置和配套高温环境箱，对不同温度环境下如25℃、100℃、300℃、500℃和700℃、不同冲击载荷作用下含交叉节理黄砂岩试样进行了五种冲击荷载的试验研究。研究表明：(1) 动态峰值应力与冲击载荷呈二次多项式函数关系，正相关性显著。100℃~500℃范围内温度对动态峰值应力影响显著，500℃~700℃范围内温度对动态峰值应力影响较小，其中300℃温度动态峰值应力最大。(2) 试样破坏形态不同，随着温度的增加由脆性破坏逐渐向延脆性破坏转化；随冲击载荷的增加，破裂面逐渐变多，破碎程度逐渐加剧，碎块尺寸变小；整体上25℃~300℃破碎程度比300℃~700℃破碎程度高。
In order to study the dynamic properties of rocks under the action of force-thermal coupling, the SHPB experiment device and the supporting high-temperature environment box were used to carry out five kinds of experimental studies on the yellow sandstone samples containing cross joints under impact loads of 25？C, 100？C, 300？C, 500？C and 700？C under different temperature en-vironments. The results show that: (1) The dynamic peak stress has a quadratic polynomial func-tion relation with the impact load, and the positive correlation is significant. Temperature has sig-nificant influence on dynamic peak stress in the range of 100？C~500？C, while temperature has little influence on dynamic peak stress in the range of 500？C~700？C. The maximum dynamic peak stress was found at 300？C. (2) The failure modes of the samples are different. With the increase of temperature, the brittle failure gradually transforms to the brittle failure. With the increase of the impact load, the fracture surface becomes more and more, the crushing degree becomes more and more serious, and the size of the pieces becomes smaller. On the whole, the crushing degree of 25？C~300？C is higher than that of 300？C~700？C.
| [1] | 吴刚, 孙红, 翟松韬. 高温岩石的扰动状态本构模型[J]. 冰川冻土, 2016, 38(4): 875-879. |
| [2] | 吴豪, 徐峰, 张萍. 高温对砂岩强度特性的影响试验研究[J]. 煤矿安全, 2019, 50(7): 61-64. |
| [3] | 熊良宵, 虞利军. 高温作用下和高温后岩石力学特性的研究进展[J]. 地质灾害与环境保护, 2018, 29(1): 76-82. |
| [4] | 张志镇, 高峰, 高亚楠, 徐小丽, 侯鹏, 滕腾, 尚晓吉. 高温影响下花岗岩孔径分布的分形结构及模型[J]. 岩石力学与工程学报, 2016, 35(12): 2426-2438. http://dx.chinadoi.cn/10.13722/j.cnki.jrme.2016.0798 |
| [5] | 黄真萍, 张义, 孙艳坤, 刘成禹, 吴伟达. 高温遇水冷却石灰岩力学与声学性质研究[J]. 中南大学学报(自然科学版), 2016, 47(12): 4180-4188. http://dx.chinadoi.cn/10.11817/j.issn.1672-7207.2016.12.029 |
| [6] | 韩观胜, 靖洪文, 苏海健, 尹乾, 吴疆宇, 高远. 高温状态砂岩遇水冷却后力学行为研究[J]. 中国矿业大学学报, 2020, 49(1): 69-75. |
| [7] | Zhang, Y.L., Sun, Q., He, H., Cao, L.W., Zhang,W.Q. and Wang, B. (2017) Pore Characteristics and Mechanical Properties of Sandstone under the Influence of Temperature. Applied Thermal Engineering, 113, 537-543.
https://doi.org/10.1016/j.applthermaleng.2016.11.061 |
| [8] | 梁永庆. 高温作用后砂岩力学性质实验研究[J]. 煤炭技术, 2016, 35(3): 76-78.
http://dx.chinadoi.cn/10.13301/j.cnki.ct.2016.03.030 |
| [9] | 杨礼宁, 姜振泉, 张卫强, 耿济世. 高温作用后砂岩力学性质研究[J]. 地震工程学报, 2016, 38(2): 299-302.
http://dx.chinadoi.cn/10.3969/j.issn.1000-0844.2016.02.0299 |
| [10] | Zhang, W.Q., Sun, Q., Hao, S.Q., Geng, J.S. and Lv, C. (2016) Experimental Study on the Variation of Physical and Mechanical Properties of Rock after High Temperature Treatment. Applied Thermal Engineering, 98, 1297-1304.
https://doi.org/10.1016/j.applthermaleng.2016.11.061 |
| [11] | 杨圣奇, 田文岭, 董晋鹏. 高温后两种晶粒花岗岩破坏力学特性试验研究[J/OL]. 岩土工程学报.
http://kns.cnki.net/kcms/detail/32.1124.tu.20201016.1630.012.html, 2020-10-27. |
| [12] | Su, C.D., Qiu, J.D., Wu, Q.H. and Wen, L. (2020) Effects of High Temperature on the Microstructure and Mechanical Behavior of Hard Coal. International Journal of Mining Science and Technology, 30, 643-650.
https://doi.org/10.1016/j.ijmst.2020.05.021 |
| [13] | 高春杨, 黄晓葛, 代唯琪, 陈祖安. 高温高压下上地幔岩石电导率实验研究[J]. 地球物理学报, 2020, 63(9): 3409-3419. |
| [14] | Shen, Y.-J., Hou, X., Yuan, J.-Q., Wang, S.F. and Zhao, C.H. (2020) Thermal Cracking Characteristics of High-Temperature Granite Suffering from Different Cooling Shocks. International Journal of Fracture, 225, 1-16. |
| [15] | 田振兴, 苏培东, 孙强. 花岗岩高温疲劳效应研究[J]. 地下空间与工程学报, 2020, 16(3): 680-690. |
| [16] | Miao, S.T., Pan, P.Z., Zhao, X.G., Shao, C.Y. and Yu, P.Y. (2020) Experimental Study on Damage and Fracture Characteristics of Beishan Granite Subjected to High-Temperature Treatment with DIC and AE Techniques. Rock Mechanics and Rock Engineering. https://doi.org/10.1007/s00603-020-02271-4 |
| [17] | 熊健, 黄林林, 刘向君, 周文, 梁利喜. 高温影响下页岩岩石的声学特性实验研究[J]. 西南石油大学学报(自然科学版), 2019, 41(6): 35-43. http://dx.chinadoi.cn/10.11885/j.issn.1674-5086.2019.08.29.02 |
| [18] | Huang, Y.-H., Yang, S.-Q. and Dong, J.-P. (2020) Experimental Study on Fracture Behaviour of Three-Flawed Sandstone Specimens after High-Temperature Treatments. Fatigue & Fracture of Engineering Materials & Structures, 43, 2214-2231. https://doi.org/10.1111/ffe.13245 |
| [19] | Wang, C., Wang, H.B., Xie, M.Z., Xiong, Z.Q., Wang, C., Cheng, L.P. and Zhan, S.F. (2020) Study on the Dynamic Characteristics of Rock Surrounding a Wellbore in Energy Storage Areas during Deep Geothermal Energy Mining. PLoS ONE, 15, e0237823. https://doi.org/10.1371/journal.pone.0237823 |
| [20] | Yin, T.-B., Shu, R.-H., LI, X.-B., Wang, P. and Dong, L.-J. (2016) Combined Effects of Temperature and Axial Pressure on Dynamic Mechanical Properties of Granite. Transactions of Nonferrous Metals Society of China, 26, 2209-2219. https://doi.org/10.1016/S1003-6326(16)64337-6 |
| [21] | Zhang, X.H., Wang, Z.L., Sun, Y.H., Zhu, C., Xiong, F., Tang, Q.Q. and Yin, Q. (2020) Numerical Simulation on Heat Transfer Characteristics of Water Flowing through the Fracture of High-Temperature Rock. Geofluids, 2020, Article ID: 8864028. https://doi.org/10.1155/2020/8864028 |
| [22] | 平琦, 吴明静, 袁璞, 张欢. 冲击载荷作用下高温砂岩动态力学性能试验研究[J]. 岩石力学与工程学报, 2019, 38(4): 782-792. |
| [23] | 胡健, 宫凤强, 贾航宇. SHPB压缩试验中红砂岩的力学与能量耗散特性研究[J]. 黄金科学技术, 2020, 28(3): 411-420. |
| [24] | 宋力, 胡时胜. SHPB数据处理中的二波法与三波法[J]. 爆炸与冲击, 2005, 25(4): 368-373.
http://dx.chinadoi.cn/10.3321/j.issn:1001-1455.2005.04.014 |
| [25] | 王鲁明, 赵坚, 华安增, 赵晓豹. 脆性材料SHPB实验技术的研究[J]. 岩石力学与工程学报, 2003, 22(11): 1798-1802. http://dx.chinadoi.cn/10.3321/j.issn:1000-6915.2003.11.009 |
| [26] | 苏承东, 郭文兵, 李小双. 粗砂岩高温作用后力学效应的试验研究[J]. 岩石力学与工程学报, 2008, 27(6): 1162-1170. http://dx.chinadoi.cn/10.3321/j.issn:1000-6915.2008.06.009 |
