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首页> 外文会议>2015 SME annual meeting amp; expo and CMA 117th national western mining conference: Mining: Navigating the global waters >STUDY ON DEFORMATION FEATURES OF SAND STRATA DUE TO WATER INJECTION IN HUADONG MINING AREA
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STUDY ON DEFORMATION FEATURES OF SAND STRATA DUE TO WATER INJECTION IN HUADONG MINING AREA

机译：华东矿区注水砂岩地层变形特征研究

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In order to control Quaternary loose layer settlement in East China, there are monitoring results based on the 3 water level observation holes and 7 sand layer of fiber Bragg grating (FBG) strain sensor. Under the conditions of upper group water injecting to lower group of loose layer, the deformation characteristics of upper, middle and lower group of loose sandy soil layer changing with time and relationship with the water level are studied. The constitutive relation of stress-strain is also studied at different sand layers. Research results show that using water injecting from upper group into lower group of loose layer can ease the loose layer compression deformation. With the water level dropped, in East China soil creep deformation occurred, which accord with viscoelasto plastic model. The deformation of lower sand group has clear later effect and no direct relationship with water level. The results provide an important basis for the study East China stratum settlement model and water management.
机译：为了控制华东地区第四纪松散层沉降，基于3个水位观测孔和7个光纤布拉格光栅（FBG）应变传感器的沙层，获得了监测结果。在上组注水向下组松散层注水的条件下，研究了松散砂土层上，中，下组的变形特性随时间的变化及其与水位的关系。还研究了不同砂层的应力应变本构关系。研究结果表明，采用从上部向下部的松散层注水可以减轻松散层的压缩变形。随着水位的下降，华东地区发生了蠕变变形，符合粘弹性模型。下砂团的变形具有明显的后期影响，与水位没有直接关系。研究结果为研究华东地层沉降模型和水资源管理提供了重要依据。

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