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- W2383997870 abstract "Based on the similar principles of model test and the open pit to underground mining practice of Daye Iron Mine, a new kind of similar material of underground caving mining model test which consists of iron ore powder, barite powder, quartz sand, unsaturated resin, gypsum was developed through a lot of material mechanics test. Iron ore powder,barite powder and quartz sand were main materials, and the unsaturated resin and gypsum were cementing agent. The sensitivity of every factor was analyzed by using variance and range analysis method. The results show that the mass ratio of iron ore powder has control effect on density and internal friction angle,and the mass ratio of unsaturated resin has control effect on compressive strength,elastic modulus and cohesion.The density of similar material ranges from 2.37 to2.83 g/cm3; the elastic modulus ranges from 11.423 to 127.935 MPa; the compressive strength ranges from 0.091 to 0.884MPa; the cohesion ranges from 2.30 to 12.01 kPa and the friction angle ranges from 15.93° to 38.59°; which can meet the needs of marble, diorite and iron ore for Daye Iron Mine's underground caving mining model test." @default.
- W2383997870 created "2016-06-24" @default.
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- W2383997870 date "2013-01-01" @default.
- W2383997870 modified "2023-09-25" @default.
- W2383997870 title "Similar material preparation of underground caving mining model with super high-steep slope" @default.
- W2383997870 hasPublicationYear "2013" @default.
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