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- W2389684274 abstract "Three-dimensional mechanical characteristics of rocks surrounding the stope of thick unconsolidated layers and thin bedrock were studied using the comprehensive research methods of similar conditions stope analogy,field measurement and numerical calculation. Draw the following conclusions: strata behaviors is related to the base-mining ratio,with the base-ming ratio increasing,strata behaviors is easing. According to the different base-mining ratio,stope can be classified as three types,including having plate and shell,having plate without shelland plates no shell. For the having plate and shelltype of stope,stress shellis first shelter of the stope,and rock beams or plates in fractured zone as second shelter of the stope,strata behaviors easing; For the having plate without shell type of stop,rock beams or plates in fractured zone are first shelter of the stope,without upper bearing shell,if the structure of plates or beams is instability,strata behaviors of the stope is dramatic; For theno plate no shelltype of stope,neither the structure of plates or beams nor stress shellshelter,alluvial soil load transfer on the hydraulic support directly,this is the important reason that the stope of small base-mining ratio is prone to happen the fully mechanized support crushing accidents. The overlying strata ofno plate no shelltype of stope according to rock vertical structure are divided into two zones,namely caving zoneand bending zone. And the mechanics mechanism of formation of three types of stope are analyzed." @default.
- W2389684274 created "2016-06-24" @default.
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- W2389684274 date "2013-01-01" @default.
- W2389684274 modified "2023-09-28" @default.
- W2389684274 title "Three-dimensional mechanical characteristics of rocks surrounding the stope of thick unconsolidated layers and thin bedrock" @default.
- W2389684274 hasPublicationYear "2013" @default.
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