Study on Treatment Scheme of New Goaf under Long Distance Pipeline
[Purposes]Due to the severe surface deformation of the new goaf construction site,which has a serious impact on the project construction,it has always been the difficulty of the project construction in the mining area.Therefore,reasonable treatment design according to the characteristics of the proposed project and the geological characteristics of the goaf has become an important factor restricting the project construction.[Methods]Based on the stability evaluation of the new goaf,the treatment schemes of avoiding the new goaf,anti-deformation structure,separate layer grouting and full filling pressure grouting were compared and selected.[Findings]Combined with the structural characteristics of the long-distance transportation pipeline,the comprehensive treatment measures of"local grouting+adjustable support+long-term monitoring"were finally selected at the right time.[Conclusions]The comprehensive treatment measures of the new goaf have reached the target of technically feasible and economically reasonable treatment,which can provide reference for the treatment of similar new goaf.
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维普
