Laboratory Investigation of Disintegration Characteristics of Purple Mudstone under Different Hydrothermal Conditions
文献类型：期刊论文
| 作者 | Zhang Dan1,2,3 ; Chen Anqiang1,2,3; Liu Gangcai1,3
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| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2012-02-01 |
| 卷号 | 9期号:1页码:127-136 |
| 关键词 | Physical weathering Mudstone Rock disintegration Hydrothermal interaction Water alternation Heat alternation |
| ISSN号 | 1672-6316 |
| 通讯作者 | 刘刚才 |
| 英文摘要 | Disintegration of rock is one of the primary processes of soil formation and geomorphology and is affected considerably by water and heat. This study focused on the disintegration characteristics under laboratory conditions of typical purple mudstone from the Tuodian group of Jurassic red beds (J(3)t) in Tuodian Town, Shuangbai county, Yunnan Province of southern China. The fresh mudstone was subjected to alternating applications of water, heat and hydrothermal interaction during five treatments: wetting-drying (WD), saturation (ST), refrigeration-heating (RH), a combination of wetting-drying and refrigeration-heating (WDRH), and a combination of saturation and refrigeration-heating (STRH). Each treatment was run in twenty-four cycles. The results showed that there are three types of disintegration: collapsing disintegration, exfoliation disintegration and imperceptible disintegration. The cumulative disintegration rate (percentage of cumulative disintegrated mass to the initiative sample mass passed through a 2 mm sieve) produced a 'S'-shape function when related to treatment cycle time and closely fit a logistic model (R-2 > 0.99). The rank order of the cumulative disintegration rate resulting from the five treatments was as the following: WDRH > STRH > ST > WD > RH. Because of alternating periods of moisture and dryness, WD caused the most disintegration, while RH alone resulted in imperceptible disintegration. Additionally, there was a negative correlation between the disintegration rate of each treatment cycle (percentage of disintegrated mass to the treated sample mass) and treatment cycle number. There was a positive correlation between this rate and temperature change under moist conditions, indicating that a change in temperature greatly accelerates the disintegration of parent rock when water was supplied. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Environmental Sciences |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| 关键词[WOS] | ZONAL DISINTEGRATION ; ROCK MASS ; SANDSTONE ; MECHANISM ; SPAIN ; CLAY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000301789000014 |
| 公开日期 | 2012-12-11 |
| 源URL | [http://192.168.143.20:8080/handle/131551/4421]  |
| 专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2012_Vol9 No.1 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang Dan,Chen Anqiang,Liu Gangcai. Laboratory Investigation of Disintegration Characteristics of Purple Mudstone under Different Hydrothermal Conditions[J]. JOURNAL OF MOUNTAIN SCIENCE,2012,9(1):127-136. |
| APA | Zhang Dan,Chen Anqiang,&Liu Gangcai.(2012).Laboratory Investigation of Disintegration Characteristics of Purple Mudstone under Different Hydrothermal Conditions.JOURNAL OF MOUNTAIN SCIENCE,9(1),127-136. |
| MLA | Zhang Dan,et al."Laboratory Investigation of Disintegration Characteristics of Purple Mudstone under Different Hydrothermal Conditions".JOURNAL OF MOUNTAIN SCIENCE 9.1(2012):127-136. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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