某铅锌银矿进路式空场嗣后充填法采场稳定性分析

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中图分类号：TD853 文献标志码：A 文章编号：1004-4345（2025）06-0007-04

AbstractTorationalldeterminethestructuralparametersofstopesusingthedriftopenstopingwithsubsequentbackfillmethod atthe-40mfirstmining levelof theYinzhu Mountainlead-zinc-silver mine，acomprehensiveanalysiswasconductedemploying engineeringgeologcalsurveys，laboratoryrock mechanicstests，rock mass clasification（usingboththeRMRandBQmthods），and the Mathews stabilitygraph method.Samplingandjointfracturesurveys werecariedoutonlead-zinc-silverores，graniteporphyry， andcrystaltuffwithintheminingareatoobtainrockmassqualityindicesandkeymechanicalparametersBasedonthesedatathe stability number （N） and allowable shape factor（S）for different ore and rock types were calculated and compared with theactual shape factorsunderthepreliminarydesignparameters.Theresultsindicatethat theactualshapefactorsforalloreandrock types inboththe stoperoofandwallsarelowerthantheircorespondingallowablevalues.Tisconfimsthatthedesignparametersmtthestability requirementsforstoperofintegrityandwallself-support，therebyvalidatingtherationalityandsafetyoftheproposedstructural parameters.

Keywordsrock mass classification; Mathewsstabilitygraph method; stope structure parameters;drift-type open stoping with subsequent backfill; stability analysis

银珠山铅锌银矿位于江西省贵溪市，属于新建矿山，该矿 -240m 首采中段设计采用进路式空场嗣后充填法进行回采。（剩余5342字）