CAJ | 학술논문

采空区地表沉降影响因素众多，以有限元差分软件FLAC3D为基础，利用数值模拟方法的灵活性，选用适合于岩土类材料的库伦摩尔模型，研究采空区上覆岩层力学性质、结构特征对地表沉降的影响。结果表明：上覆岩层力学性质、结构特征对地表沉降有着很大的影响，不同的岩层组合会使地表所产生的地表沉降效果不同。在其他条件相同的情况下，坚硬岩层的地表下沉值小于软弱岩层的地表下沉值。
채공구지표침강영향인소음다，이유한원차분연건FLAC3D위기출，이용수치모의방법적령활성，선용괄합우암토류재료적고륜마이모형，연구채공구상복암층역학성질、결구특정대지표침강적영향。결과표명：상복암층역학성질、결구특정대지표침강유착흔대적영향，불동적암층조합회사지표소산생적지표침강효과불동。재기타조건상동적정황하，견경암층적지표하침치소우연약암층적지표하침치。
Ground deformation in goaf is affected by various factors. Basic on FLAC3D, making use of the lfexibility of numerical simulation, we choose Coulomb-Moore Mode that is applicable to rock-earth materials, and study the inlfuence on ground deformation from the mechanical properties and horizon of overburden rock. The strata of layers refer to the relationship of the rock. As a result, the strata of layers have a great inlfuence on the rock deformation and ground subsidence. The combination of different layers will product different effect of ground settlement. If other conditions are of the same, the value of surface subsidence caused by goaf which is covered by soft layers will be bigger than the goaf covered by hard layers.