CAJ | 학술논문

露井联合开采条件下的采空区上覆岩层的稳定性一直是采矿工程技术中的关键问题。采用KB鲁佩涅依特理论估算法、结构力学梁理论计算法、普氏拱理论估算法与数值模拟法,对鄂尔多斯某矿进行分析计算,对不同采空区跨度及顶板厚度进行数值模拟,通过多种计算方法与实际生产状况结合,得出不同采空区跨度下合理的覆岩最小安全厚度值,为矿山设计合理采空区覆岩厚度提供了参考,对露井联合开采安全生产具有重要意义。
로정연합개채조건하적채공구상복암층적은정성일직시채광공정기술중적관건문제。채용KB로패열의특이론고산법、결구역학량이론계산법、보씨공이론고산법여수치모의법,대악이다사모광진행분석계산,대불동채공구과도급정판후도진행수치모의,통과다충계산방법여실제생산상황결합,득출불동채공구과도하합리적복암최소안전후도치,위광산설계합리채공구복암후도제공료삼고,대로정연합개채안전생산구유중요의의。
Stability of overlying strata at goaf under condition of open-underground combined mining had been a key issue in mining engineering technology.Practice situation of a mine in Ordos were analyzed and calculated by using KB LuPeinie theory estimation method,structural mechanics theory calculation method,Platts arch theory estimation method and numerical simulation method,numerical simulation was done on different goaf span and top plate thickness,though combine of several calculating methods and practice production situation,reasonable minimum safe thickness value of overlying strata at different goaf span was obtained,provided reference for reasonable goaf overlying strata thickness design of mine,had important guiding significance for safe production of open-underground combined mining.