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Mining Amalyses Of Frame-work Support By Column And Deformation-control And Protection In Mining Area

Posted on:2001-05-01Degree:MasterType:Thesis
Country:ChinaCandidate:Z H LiuFull Text:PDF
GTID:2132360002450014Subject:Geotechnical engineering
Abstract/Summary:PDF Full Text Request
First,Progressing analyses of mining effect aiming at three kindsof foundations including rigidity strip foundation,flexible foundationstake foundation aiming at suffering characteristic of Frame-work supportby column in mining in this paper. Basing connecting literatures,Summing up "domino effect combining design method" for rigidity stripfoundation,flexible foundation,stake foundation and contrasting anddemonstrating with experiments.Next. According to characteristic of Frame-work,canying throughresearch about elasto-plastic stability in mining area,through analysesand argumentation about frame-work support by column in miningarea,putting forward checking formula about stability of frame-worksupport by column in mining area, and Canying through contract toexperiments. Reasoning feasibility,making up reinforced concrete"elasto-nucleus" theroy,offering base for mining analyses.Besides, Putting up analyses at wall distortion of frame-worksupport by column in mining area,and, Educing its intemal-force anddistortion with strip aPproaching method and, working out analysesprogram of wall distortion.Fourthly, according that our country is a excessive earthquakecountry,and 80 perceflt of them lie at earthquake section, So, puttingforward double protect of contradict mining and contradict earthquake inthe paper, both of them are opposing and uniform, basing on doubleprotect principle. First, Suffering characteristic of frame-work byearthquake effect, plltting forward bottom sheering force augmentcoefficient of this kind structure substance, through contrast and analysesand calculate,perfecting our counry present design criterion of contradictearthquake,then,emphasizing on discussion about slippage distortioncontrol and calculate and analyse,making up floor analyses program byearthquake effect.Finally putting forward building of contradicting distortion andprotect material measure, developing and supplying mixing structuredistortion controlling theory in mining area.
Keywords/Search Tags:Mining Area, flexible foundation, rigidityflexible foundation, elasto-plastic stability, "elasto-nucleus"strip approaching method, double protect, mixing structure, distortion controlling theory
PDF Full Text Request
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