Calculation Method and Distribution Characteristics of Fracture Hydraulic Aperture from Field Experiments in Fractured Granite Area | |
Ji, Hui-bin4; Cao, Yang-Bing1,3; Feng, Xia-Ting3; Yan, E-Chuan1; Chen, Gang2; Lu, Fei-fei1; Song, Kuang-Yin4 | |
刊名 | ROCK MECHANICS AND ROCK ENGINEERING
![]() |
2016 | |
卷号 | 49期号:5页码:1629-1647 |
关键词 | Fracture Hydraulic Aperture Fracture Mechanical Aperture Fracture Normal Stress Fractured Rock Mass Genetic Algorithm |
ISSN号 | 0723-2632 |
DOI | 10.1007/s00603-015-0881-0 |
英文摘要 | Knowledge of the fracture hydraulic aperture and its relation to the mechanical aperture and normal stress is urgently needed in engineering construction and analytical research at the engineering field scale. A new method based on the in situ borehole camera measurement and borehole water-pressure test is proposed for the calculation of the fracture hydraulic aperture. This method comprises six steps. The first step is to obtain the equivalent hydraulic conductivity of the test section from borehole water-pressure tests. The second step is a tentative calculation to obtain the qualitative relation between the reduction coefficient and the mechanical aperture obtained from borehole camera measurements. The third step is to choose the preliminary reduction coefficient for obtaining the initial hydraulic aperture. The remaining three steps are to optimize, using the genetic algorithm, the hydraulic apertures of fractures with high uncertainty. The method is then applied to a fractured granite engineering area whose purpose is the construction of an underground water-sealed storage cavern for liquefied petroleum gas. The probability distribution characteristics of the hydraulic aperture, the relationship between the hydraulic aperture and the mechanical aperture, the hydraulic aperture and the normal stress, and the differences between altered fractures and fresh fractures are all analyzed. Based on the effects of the engineering applications, the method is proved to be feasible and reliable. More importantly, the results of the hydraulic aperture obtained in this paper are different from those results elicited from laboratory tests, and the reasons are discussed in the paper. |
WOS研究方向 | Engineering ; Geology |
语种 | 英语 |
出版者 | SPRINGER WIEN |
WOS记录号 | WOS:000374981500003 |
内容类型 | 期刊论文 |
源URL | [http://119.78.100.198/handle/2S6PX9GI/3866] ![]() |
专题 | 岩土力学所知识全产出_期刊论文 岩土力学所知识全产出 国家重点实验室知识产出_期刊论文 |
作者单位 | 1.China Univ Geosci, Fac Engn ; 2.China Univ Geosci, Sch Environm Studies ; 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 4.Beijing New Oriental Star Petrochem Engn Co Ltd |
推荐引用方式 GB/T 7714 | Ji, Hui-bin,Cao, Yang-Bing,Feng, Xia-Ting,et al. Calculation Method and Distribution Characteristics of Fracture Hydraulic Aperture from Field Experiments in Fractured Granite Area[J]. ROCK MECHANICS AND ROCK ENGINEERING,2016,49(5):1629-1647. |
APA | Ji, Hui-bin.,Cao, Yang-Bing.,Feng, Xia-Ting.,Yan, E-Chuan.,Chen, Gang.,...&Song, Kuang-Yin.(2016).Calculation Method and Distribution Characteristics of Fracture Hydraulic Aperture from Field Experiments in Fractured Granite Area.ROCK MECHANICS AND ROCK ENGINEERING,49(5),1629-1647. |
MLA | Ji, Hui-bin,et al."Calculation Method and Distribution Characteristics of Fracture Hydraulic Aperture from Field Experiments in Fractured Granite Area".ROCK MECHANICS AND ROCK ENGINEERING 49.5(2016):1629-1647. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论