Karst collapse mechanism and criterion for its stability
文献类型：期刊论文
| 作者 | He, KQ; Liu, CL; Wang, SJ |
| 刊名 | ACTA GEOLOGICA SINICA-ENGLISH EDITION
 |
| 出版日期 | 2001-09-01 |
| 卷号 | 75期号:3页码:330-335 |
| 关键词 | karst collapse prediction criterion environmental ecological problem shear stress shear strength |
| ISSN号 | 1000-9515 |
| 文献子类 | Article |
| 英文摘要 | Karst collapse, caused by natural or artificial abstraction of groundwater, has been a focus of environmental geological problems for its ever-increasing hazardousness. The potential erosion theory and vacuum suction erosion theory, which reveal the origin of karst collapse macroscopically, are popularly accepted. However, a mathematic prediction criterion for karst collapse cannot be established only by these two theories. From a new perspective, this paper attempts to explain the microcosmic mechanism of karst collapse on the basis of these two theories. When the shear stress surpasses the shear strength of soil, a certain point or a certain plane in the unconsolidated soil covering karst caves will fail under the mechanical effects of water and air as well as its load-pressure, and with the increase of damaged points, a breaking plane appears and the soil on karst caves is completely damaged; as a result, the karst ground collapses. On the basis of the Mohr-Coulomb failure theory and previous studies, the paper presents a prediction criterion of karst collapse. Finally, by taking, for example, nine typical cases of collapse caused by pumping tests in Guizhou, the paper gives the calculation process of the model and proves its reliability. |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000170773300016 |
| 出版者 | GEOLOGICAL SOC CHINA |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/77255]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | He, KQ |
| 作者单位 | 1.Qingdao Inst Architecture & Engn, Dept Civil Engn, Qingdao 266033, Shandong, Peoples R China 2.Chinese Acad Geol Sci, Inst Hydrogeol & Engn Geol, Zhengding 050803, Hebei, Peoples R China 3.Acad Sinica, Inst Geol, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, KQ,Liu, CL,Wang, SJ. Karst collapse mechanism and criterion for its stability[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2001,75(3):330-335. |
| APA | He, KQ,Liu, CL,&Wang, SJ.(2001).Karst collapse mechanism and criterion for its stability.ACTA GEOLOGICA SINICA-ENGLISH EDITION,75(3),330-335. |
| MLA | He, KQ,et al."Karst collapse mechanism and criterion for its stability".ACTA GEOLOGICA SINICA-ENGLISH EDITION 75.3(2001):330-335. |
入库方式： OAI收割
来源：地质与地球物理研究所
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