欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
复杂环境与多场耦合作用下,采空区煤岩体非对称变形诱致局部化失稳并演化为动力灾害。针对于西北强震作用下煤矿采空区（局部化）动力失稳定量预报,以乌鲁木齐矿区急倾斜煤层放顶煤开采为背景,首先系统分析了物理模拟复合材料损伤与破裂的＂声-光-电＂信号迁移途径与有效可靠的测试方法,继而构建了大型立体地球物理模拟装置与＂声-光-电＂指标信息测控系统,形成动力灾害源的识别技术和危险性分析技术（平台）。这最终为急倾斜厚煤层放顶煤开采技术参数的合理确定、提高灾害识别能力和预测精度以及灾害控制奠定科学基础。
英文摘要：
Under the complex environment and multi-field coupling effect, un-symmetric deformation of the mined-out-area would lead to the localized destabilization so as to induce disasters. The object is to quantificationally predict the localized dynamical destabilization of the mined-out-area applied to the high- section-top-coal-caving（HSTCC） method for heavy-steep coal seam of Wulumuqi coal region in western seismic geophysical environment. Firstly, the transferring way of acoustics（emission）- optics-electricity （AOE） signals and invalid testing method of composite physical simulation material damage and fracture process were analyzed synthetically. Then, a large-scale-three-dimensional geophysical simulation assembly were performed and its hybrid test system indicating the AOE information. The technical platform has been formed indicating the dynamic hazard origin and fatalness analysis and discrimination. Finally mining parameters, those would provide the scientific foundation including determination the rational improving the hazard discrimination and predicting precision and disaster control in the process of the top-cave heavy steep and thick coal seam.
同期刊论文项目
同项目期刊论文
Comprehensive assessment on dynamic roof instability under fractured rock mass conditions in excavat
Simulation experiment of AE-based localization damage and deformation characteristic on covering roc
Assessment of rock mass characteristics and the excavation disturbed zone in the Linxin Coal Mine be
In situ monitoring and analysis of rock mass behavior prior to collapse of the main transport roadwa
期刊信息
位置：