ISSN:
1432-0495
Keywords:
Key words Collapse
;
Doline
;
Gypsum
;
Rock mass
;
Dissolution
;
Stand-up time
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geosciences
Notes:
Abstract This study investigated the formation mechanism of dolines. Dolines are caused by dissolution of gypsum in the study area, 50–220 m in diameter. Two systems were applied to determine the support necessary for natural underground opening of given span in a given rock mass. From the characteristics of the rock mass, a 5 m-wide unsupported span in the gypsum can be expected to stand up for over 9 years. The designed span of an artificial opening would normally be considerably less than the span of a collapsed natural opening in the same rock. Dolines in the study area play an important role in the groundwater flow system.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s002540050125
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