Sentence examples for mining thickness from inspiring English sources

The cumulative mining thickness is around 14 m.

At a height of 145 237 m (48 79 times of mining thickness), rock mass deformed continuously without significant fracturing.

Within the height range of 88 145 m (29 48 times of mining thickness) is the bed separation zone where fractures, mainly horizontal, developed.

(4) The surface subsidence velocity increases obviously due to rapid mining, and it also becomes larger with the increase of the mining thickness.

The analysis results showed that comprehensive pullman's thickness of overburden strata, disturbance coefficient, mining thickness ratio and etc. are the key influence factors to the mining subsidence.

The strata with a significant water pressure drop can extend up to 145 m (48 times of mining thickness) above the working seam, indicating that the zone of strata fractures has extended to this height.

The height of the caving zone and the freely flowing water fractured zone of different mining thicknesses were separately calculated.

Various phenomena such as underground fluid withdrawal, occurrence of sinkholes, drainage of organic soils, tectonic, mining, high thickness of young alluvium, tree roots, and subsurface flow can lead to subsidence [8].

Both types result in the surface dropping ~70%% of the mined-out thickness.

Based on the mining depth and thickness of the coal seam, roadway support technology solutions with different buried depth and thickness of coal seam are proposed.

This paper reviews underground mining methods for total thickness of a thick coal seam in single lift (TTTCSSL).