The stress relief correction method considering irregular borehole shapes
文献类型：期刊论文
| 作者 | Qin, Yuqiao; Tang, Hua; Wu, Zhenjun; Ge, Xiurun |
| 刊名 | COMPUTERS AND GEOTECHNICS
 |
| 出版日期 | 2023-07-01 |
| 卷号 | 159 |
| 关键词 | In situ stress measurement Complex function Conformal transformation Irregular borehole Stress relief method |
| ISSN号 | 0266-352X |
| 英文摘要 | In situ stress is an essential parameter that directly affects all engineering construction and scientific research in deep rock masses. The shapes of deep borehole are often highly irregular, so that the traditional in situ stress measurement methods based on the assumption of circular or cylindrical boreholes are no longer applicable. We propose a stress relief correction method considering irregular borehole shape using the complex function method of elasticity. The conformal mapping function is introduced to project the irregular shape into a unit circle and the relationship between the strains at the borehole wall and the far-field in situ stress components are solved by the Cauchy integral methods. The results show the following: (1) The stress results from the stress relief correction method are consistent with the theoretical solutions and numerical simulation results for circular and square boreholes. (2) The irregular borehole shape significantly changes the distribution of stress magnitude and the direction of strain measurement on the borehole wall. The stress relief correction method considering irregular borehole shapes provides an essential theoretical basis for deep rock mass engineering construction and deep oil and gas field exploration. |
| 学科主题 | Computer Science ; Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000981747900001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34706]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS |
| 推荐引用方式 GB/T 7714 | Qin, Yuqiao,Tang, Hua,Wu, Zhenjun,et al. The stress relief correction method considering irregular borehole shapes[J]. COMPUTERS AND GEOTECHNICS,2023,159. |
| APA | Qin, Yuqiao,Tang, Hua,Wu, Zhenjun,&Ge, Xiurun.(2023).The stress relief correction method considering irregular borehole shapes.COMPUTERS AND GEOTECHNICS,159. |
| MLA | Qin, Yuqiao,et al."The stress relief correction method considering irregular borehole shapes".COMPUTERS AND GEOTECHNICS 159(2023). |
入库方式： OAI收割
来源：武汉岩土力学研究所
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