Study on formation mechanism of gas tunnel in non-coal strata

X. Kang (), M. Xu, S. Luo and Q. Xia

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2013, vol. 66, issue 2, 301 pages

Abstract: Gases are common constituents of the underground environment, along with soils, rocks, and water. It is widely believed that gases in underground originate from the bacterial decomposition and thermal decomposition of organic and inorganic compounds, and geochemical reactions. Gases are usually widely dispersed in low concentrations, but under some geologic conditions are abundant. Gas can be a hazard to construction of underground civil works such as tunnels and underground chambers. Besides the gas tunnels in coal seam, there are a large number of tunnels with gas in non-coal strata in China, such as the Paotaishan Tunnel, Hongshiyan Tunnel, and Zengjiaping 2# Tunnel. These tunnels do not cross coal strata, but all encountered gas problems during construction. Due to lack of full understanding and thorough preparation, as well as the random non-uniform distribution of gas emission, the gas disasters in these tunnels are usually larger than the traditional ones. Study on the causes of formation has great scientific significance. This paper focuses on a variety of complete gas tunnels, summarized three types of gas tunnel in the non-coal strata, namely the structure-connected gas tunnel, including fracture, fault, and fold three subtypes according to the different geological structures; the second one is gas tunnel with metamorphic wall rock; the third is gas tunnel by composite forming causes. Copyright Springer Science+Business Media Dordrecht 2013

Keywords: Gas tunnel; Non-coal strata; Formation mechanism; Gas disaster (search for similar items in EconPapers)
Date: 2013
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://hdl.handle.net/10.1007/s11069-012-0484-y (text/html)
Access to full text is restricted to subscribers.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:spr:nathaz:v:66:y:2013:i:2:p:291-301

Ordering information: This journal article can be ordered from
http://www.springer.com/economics/journal/11069

DOI: 10.1007/s11069-012-0484-y

Access Statistics for this article

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards is currently edited by Thomas Glade, Tad S. Murty and Vladimír Schenk

More articles in Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards from Springer, International Society for the Prevention and Mitigation of Natural Hazards
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().