Geological structure and hydrogeology of the hotte

2022-08-01
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Geological structure, hydrogeology and its impact on mine safety production (I) geological structure

geological structure refers to the result of deformation of rock stratum or rock mass bearing crustal movement under the action of in-situ stress. There are three ways and results of in-situ stress:

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(1) compressive stress causes rocks to compress and form compressive structures

(2) tensile stress causes rock to stretch and form tensile structure

(3) the torsional stress causes the rock to distort and form a torsional structure

the deformation of rock is not only related to the size, direction, nature and action time of the stress, but also related to the physical and chemical performance of the rock itself. The filter layer of Mspp is that electrostatic spinning polyacrylonitrile nanofibers are sandwiched between two layers of carbon fibers. The basic structural types are: Horizontal structure, inclined structure, fold structure and fault structure. The scale of Mspp varies from small to large, and the form is also diverse

l horizontal structure

the original rock stratum is generally horizontal. Under the influence of vertical crustal movement, it is called horizontal structure if it still enters the threshold and maintains a low horizontal or nearly horizontal occurrence without fold change

2. inclined structure

inclined structure refers to that there is a certain included angle between the strata layer and the horizontal plane after the structural change. Inclined strata are often the wing of a fold, a wall of a fault, or caused by uneven upward and downward movements

3. fold structure

the bending of rock stratum under the action of lateral compressive stress is called fold. Fold also refers to the single bending of rock stratum, while the continuous bending of rock stratum is called fold. The shape of folds can be represented by fold elements

4. fault structure

fault structure refers to the structure formed by the deformation of rock under the action of stress. When the stress exceeds a certain strength, the rock will rupture, or even dislocation along the fracture surface, which destroys the continuity and integrity of rock stratum. According to the scale and fracture degree of the fault, it can be divided into cleavage, joint, fault and other basic types

(II) geological structure of ore deposits

geological structure of ore deposits refers to deposits naturally formed by ore bodies buried in the earth's crust and various rock monomers. The genetic types of common deposits in mining are limestone, sandstone, various slate, quartzite, skarn, migmatite, diorite, granite, etc. The mode and basic structural type of in-situ stress of the geological structure of the deposit are the same as its geological structure

rocks are aggregates of mineral crystalline particles. Due to different particle sizes, the particles are interlinked 9 The rock has different structure and structure due to different identification methods of experimental control parameters. Rock structure refers to the size, shape, surface characteristics, particle correlation and cementation type characteristics of rock components (particles). The structure of rock refers to the arrangement of rock components in space. Such as bedding structure and bedding structure of rocks

the atoms (ions) of various chemical elements that make up minerals are repeatedly arranged in space according to certain rules, and the solid with regular geometry is called crystal

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