Analysis of the Distribution and Microscopic Characteristics and Disintegration Characteristics of Carbonaceous Rocks: A Case Study of the Middle Devonian Luofu Formation in Western Guangxi of China
文献类型：期刊论文
| 作者 | Luo, Junhui4,5; Wu, Yong4; Mi, Decai4; Ye, Qiongyao4; Huang, Haifeng2; Chang, Zhenchao2; Chen, Qinglin2; Zhang, Tao1; Sun, Guanhua7; Wang, Xueheng6 |
| 刊名 | ADVANCES IN CIVIL ENGINEERING
 |
| 出版日期 | 2020-08-30 |
| 卷号 | 2020页码:15 |
| ISSN号 | 1687-8086 |
| DOI | 10.1155/2020/8810648 |
| 英文摘要 | Carbonaceous rock is a special soft rock containing TOC organic carbon 6%similar to 40%. In order to reveal the influence of engineering characteristics of carbonaceous rock on the engineering construction, firstly the stratigraphic distribution of carbonaceous Rocks in Guangxi is investigated, and the genetic mechanism and tectonic environment of carbonaceous rocks are discussed. Secondly, the influence of pore microstructure on the disintegration characteristics of carbonaceous rocks is analyzed. The role of geochemical characteristics of carbonaceous rocks (mineral composition, TOC total organic matter content, and type) on engineering properties is revealed. Finally, combined with the distribution, structure, microstructure, and microscopic characteristics of the previous studies, the disintegration mechanism of carbonaceous rocks in water swelling and heat dehydration is discussed. The results are as follows. (1) Carbonaceous rocks in Guangxi are mainly distributed in Devonian, Carboniferous, and Cambrian systems. It is mainly formed in anoxic and reductive deep water basins, slopes, and relatively confined coastal lagoons and swamps. The carbonaceous rocks in the Devonian Luofu formation are most typical. (2) The pores of carbonaceous rocks are divided into mineral pores, organic matter pores, and microfracture, which are mainly mineral pores. The more developed pores in mineral pores are intragranular dissolved pores. Secondly, mineral intergranular pores and a small amount of intergranular dissolution pores and less inner pores. Organic matter porosity increases with the increase of shale organic carbon content and maturity, but the shale porosity and adsorption capacity decrease when shale maturity reaches more than 2.4%. (3) Clay minerals in carbonaceous shale mainly consist of illite and illite/montmorillonite layer, which have water swelling and heat dehydration. The total average value of TOC (total organic matter content) is more than 1%, which belongs to carbonaceous rocks of medium high grade hydrocarbon source rocks. Organic matter is mainly dominated by type I and II1-II(2)type with large hydrocarbon generating potential, which is prone to oxidation-reduction reaction and cause rock disintegration. |
| 资助项目 | Science and Technology Project of Guangxi[GuikeAC16380119] ; Science and Technology Project of Guangxi[AD19110124] |
| WOS研究方向 | Construction & Building Technology ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000572083000007 |
| 出版者 | HINDAWI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/24816]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Luo, Junhui |
| 作者单位 | 1.China Univ Geosci, Fac Engn, Wuhan 430074, Peoples R China 2.Guangxi Beitou Transportat Maintenance Technol Gr, Nanning, Peoples R China 3.Guangxi Rd & Bridge Engn Grp Co Ltd, Nanning 530200, Guangxi, Peoples R China 4.Guangxi Commun Design Grp Co Ltd, Nanning, Peoples R China 5.Guangxi Xinfazhan Commun Grp Co Ltd, Nanning 530029, Guangxi, Peoples R China 6.Guangxi Inst Geol Survey, Nanning 530023, Guangxi, Peoples R China 7.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo, Junhui,Wu, Yong,Mi, Decai,et al. Analysis of the Distribution and Microscopic Characteristics and Disintegration Characteristics of Carbonaceous Rocks: A Case Study of the Middle Devonian Luofu Formation in Western Guangxi of China[J]. ADVANCES IN CIVIL ENGINEERING,2020,2020:15. |
| APA | Luo, Junhui.,Wu, Yong.,Mi, Decai.,Ye, Qiongyao.,Huang, Haifeng.,...&Liu, Xianlin.(2020).Analysis of the Distribution and Microscopic Characteristics and Disintegration Characteristics of Carbonaceous Rocks: A Case Study of the Middle Devonian Luofu Formation in Western Guangxi of China.ADVANCES IN CIVIL ENGINEERING,2020,15. |
| MLA | Luo, Junhui,et al."Analysis of the Distribution and Microscopic Characteristics and Disintegration Characteristics of Carbonaceous Rocks: A Case Study of the Middle Devonian Luofu Formation in Western Guangxi of China".ADVANCES IN CIVIL ENGINEERING 2020(2020):15. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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