地表沉陷幅度与覆岩离层的关系确定
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摘要
应用层状覆岩的自重应力平衡状态,应用静水压力模型, 覆岩层的垂直静力平衡条件, 设某深度岩层的理论静压力为PH,而实际的竖直压力为Ps,推导出覆岩离层的条件关系式,覆岩离层空间与地表沉陷幅度的关系式,当PH>Ps时,覆岩离层产生。证实了离层岩板只承受自重应力和水平应力状态的作用。因此,采用离层注浆这项新技术,就是要使其充填材料有效控制潜在的沉陷幅度(即离层空间),从而达到减缓地表沉陷之目的。
Based on overburden rocks self-weight stress balanced state and quiet water pressure model , namely quiet water pressure string pH and vertical stress ps, when pH > ps, the separated layers in overboard is produced. The relation between space of separated layers and ranges of surface subsidence is obtained. proving that the rock board only bears the function of the gravity and horizontal stress. The new technology to fill with material grout into the space of separated layers is adopted, to achiev the goal of slowing down the earths surface subsidence.
Based on overburden rocks self-weight stress balanced state and quiet water pressure model , namely quiet water pressure string pH and vertical stress ps, when pH > ps, the separated layers in overboard is produced. The relation between space of separated layers and ranges of surface subsidence is obtained. proving that the rock board only bears the function of the gravity and horizontal stress. The new technology to fill with material grout into the space of separated layers is adopted, to achiev the goal of slowing down the earths surface subsidence.
引文
[1]邱泽华,张宝红.构造塌陷地震[M].北京:地质出版社,1994.
[2]苏仲杰.采动覆岩离层变形机理研光[D].阜新:辽宁工程技术大学,2001.
[2]苏仲杰.采动覆岩离层变形机理研光[D].阜新:辽宁工程技术大学,2001.
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