废弃巷道上方地表建筑场地地基稳定性评估  

Evaluation of Foundation Stability of Construction Site over Abandoned Roadway

作　　者：贾新果[1,2] 

机构地区：[1]煤炭科学技术研究院有限公司安全分院,北京100013 [2]煤炭资源高效开采与洁净利用国家重点实验室(煤炭科学研究总院),北京100013

出　　处：《煤矿开采》2014年第6期84-86,共3页Coal Mining Technology

基　　金：国家科技重大专项:煤层气与煤炭协调开采模式与评价技术(2011ZX05040-001-1);国家自然科学基金青年科学基金项目(51404139)

摘　　要：由于废弃巷道不再进行正常维护,随着时间的推移在地表附加建筑荷载等外在因素作用下,废弃巷道会逐渐遭受破坏,致使地表产生突然或逐渐地沉陷,从而影响地表建筑地基的稳定。因此,提出了废弃巷道地表建筑地基稳定性评价原则,对废弃巷道顶板破坏高度和附加建筑荷载影响深度进行了定量计算和分析,探讨了废弃巷道上方地表建筑地基稳定性评估方法,并采用实例验证了该评估方法的有效性。Abandoned roadway will gradually suffer destruction under additional buildings load and this will result into surface abrupt or gradual subsidence, which influence foundation stability of surface building. Evaluation principle of foundation stability of surface build-ing over abandoned roadway was put forward. Roof failure height of abandoned roadway and influence depth of additional load was calcu-lated and analyzed. An example verified effectiveness of this evaluation method.

关 键 词：废弃巷道 附加荷载 地基稳定性 

分 类 号：TD823[矿业工程—煤矿开采]