Self-anchored cable-stayed suspension bridge has highly competitive in large-span bridge scheme selection due to it combines both stress characteristics and structural characteristics of cable-stayed bridge and self-a...
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Based on the background of Dalian Bay Cross-Sea Bridge project, some plans with settings of lead-rubber bearing among side pier, tower and stiffening girder have been analyzed under longitudinal seismic input using th...
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In order to study the surface subsidence and separation range features during the mining process in in thick seam mining of Daping mine, it takes the typical coal of mining in S2S9 face of Daping Mine, using the resem...
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ISBN:
(纸本)9783037857298
In order to study the surface subsidence and separation range features during the mining process in in thick seam mining of Daping mine, it takes the typical coal of mining in S2S9 face of Daping Mine, using the resemble simulation to study on it. The study showed that the subsidence amounted to less than the maximum under the geological and mining conditions, In the single-face mining conditions, when the face length is generally not more than(1/3-1/4) *** mining thickness cannot deflection in the form completely transmitted to the surface, but abound in overburden bed rock mass formed within the fracture and caving into the residual space. This research can be a reference for safety and high efficient coal mining of other working face in Daping Coal Mine.
Based on actual measurement data in Da Ping as the samples,according to the experience, and ends with calculate every factors' weight and height prediction of the water conducted zone by Matlab using the combinati...
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ISBN:
(纸本)9783037857298
Based on actual measurement data in Da Ping as the samples,according to the experience, and ends with calculate every factors' weight and height prediction of the water conducted zone by Matlab using the combination entropy-weight method and analytic hierarchy process. this paper introduces a comprehensive prediction model consisting of analytic hierarchy process and combination entropy-weight method. The method,overcoming weight's imbalance, gives the evaluation result better than does the single analytic hierarchy process, it is a new valid method for scientific forecast on water conducted zone.
In order to delve better what research methodology of height of water conducted fissure zone are, especially in mining of thick coal seam with soft, 3-D numerical simulationin was used to S2S9 face of Da Ping mine, it...
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It takes the typical coal of mining in S2S9 face of Daping mine, using the 3-D numerical simulation to reveal on its face with the vertical characteristics of the stress field and displacement *** study showed that th...
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It takes the typical coal of mining in S2S9 face of Daping mine,using the 3-D numerical simulation to reveal on its face with the vertical characteristics of the stress field and displacement *** study showed that the...
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It takes the typical coal of mining in S2S9 face of Daping mine,using the 3-D numerical simulation to reveal on its face with the vertical characteristics of the stress field and displacement *** study showed that the overburden strata migration features during the mining process in in thick seam mining of Daping *** research can be a reference for safety and high efficient coal mining of other parts of the soft overburden in extra-thick seam mining technology.
In order to delve better what research methodology of height of water conducted fissure zone are,especially in mining of thick coal seam with soft,3-D numerical simulationin was used to SS face of Da Ping mine,it reve...
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In order to delve better what research methodology of height of water conducted fissure zone are,especially in mining of thick coal seam with soft,3-D numerical simulationin was used to SS face of Da Ping mine,it reveals the damage movement rule of overlying strata in mining roof-coal in "Three Soft" coal seam in the *** it confirms the height of the water flowing fractured zone and tests the simulation result by the theoretical analysis and simple hydrology observation *** provides a new idea for the application soft overburden in extra- thick seam mining technology.
The dynamic compressive experiments of cubic concrete specimens under various constant lateral pressures were preformed. The lateral confining pressure in the tests were kept constant at 0MPa, 4MPa, 7MPa and 10MPa, re...
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The fiber model of Dalian Bay Bridge is established with simulating plastic hinge by distribution hinge model, nonlinear time-history is analyzed by Midas/Civil based-on elastic-plastic theory. Compared of time-histor...
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