Internal thermal origin mechanism of Karstic collapse column with no smoothly extrinsic cycle

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Publication Date

7-13-2008

Publication Title

Journal of Coal Science and Engineering (China)

Volume Number

14

Abstract

Huainan coal field as main object, investigation of Karstic hydrogeological conditions were developed in Huainan structureal unit, and the basic conditions, features and rules of Karstic growth were summarized. Geology background and causes of Karstic collapse columns were analyzed. Combined with ancient physiognomy, environment and litho-facies features. After studying synthetically Karstic collapse columns, shape of collapse body, filling feature, hydrodynamic condition and agglutinate material in Huainan area, considering mine hydrogeological conditions of Xuhuai coal field and referenced Karstic collapse columns characters of other mines in North China, the internal thermal origin theory is elementarily formed for Karstic collapse columns extrinsic cycle can not operate smoothly. Finaly, three aspects including distributing features of different kinds of Karstic collapse columns in north China type coal field, conditions of Karstic collapse columns origined from internal thermal with no smoothly extrinsic cycle, mechanics of causes were analyzed and demonstrated.

Keywords

Karst, Geology, Hydrogeology, Coal fields, Subsidence

Document Type

Article

Digital Object Identifier (DOI)

https://doi.org/10.1007/s12404-008-0048-7

Language

English

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