agnostic
发表于 2025-3-26 23:04:18
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品牌
发表于 2025-3-27 01:44:11
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拘留
发表于 2025-3-27 06:00:00
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熔岩
发表于 2025-3-27 12:51:21
https://doi.org/10.1057/978-1-137-51999-3fore, water inrushes from the aquifer occur frequently, and coal mines often suffer from serious water disasters during coal extractions (Peng 1997, 1999). Water inrush incidents have shown that the maximum water inflow in a coal mine has reached as much as 2,053 m./min, which submerged the mine in
和谐
发表于 2025-3-27 17:33:59
Sedimentary rock masses and discontinuities, is necessary to determine the geometrical and mechanical properties of the fractures and rock mass from lab and the field. For instance, the geometry, locations, orientation, aperture variations and fluid-mechanical properties of fractures and rock mass are needed to be determined.
Culpable
发表于 2025-3-27 17:49:59
Water inrush and mining above confined aquifers,fore, water inrushes from the aquifer occur frequently, and coal mines often suffer from serious water disasters during coal extractions (Peng 1997, 1999). Water inrush incidents have shown that the maximum water inflow in a coal mine has reached as much as 2,053 m./min, which submerged the mine in
掺和
发表于 2025-3-27 23:58:14
b-discipline of engineering geology for describing and solving geological engineering problems encountered in underground mining, petroleum and civil engineering. It covers rock mechanics for underground rocks, rock hydraulics, wellbore mechanics, mine geology and mine hydrogeology. ..This book clea
使出神
发表于 2025-3-28 05:28:53
Epilogue: “Lots of Pep! Lots of Steam!”concern due to potential rock movements along fractures at the borehole wall. In the case of shale formations, not only does the state of stress and pressure play a role, but also the properties and interactions between the shale and the drilling fluid.
裹住
发表于 2025-3-28 06:16:47
https://doi.org/10.1057/9780230307063 the influences of the pore pressure and stress changes. Various attempts have found that stress-deformation behavior of fractures and pores present in rock masses is a key factor governing rock permeability and fluid flow through the rock masses.
Militia
发表于 2025-3-28 13:56:56
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