大跨度四角锥屋面钢网架整体提升与卸载技术

结合具体工程案例进行分析,旨在如何有效、安全地完成超大型大跨度连跨双层屋面钢网架结构的施工,逐一对每一步骤控制重点进行描述,通过“施工步骤的精细分解,施工顺序的科学规划,各阶段模型的逐一验算,新型提升措施的设计和应用,有效地统筹施工管理”,确定“地面分区拼装–分区不等位整体多段提升–分阶段补杆–整体同步卸载–按顺序依次拆除提升支架/补杆(定位)”的施工方法顺利安全地完成施工工作,确保结构受力符合设计要求,该施工方法的选择在缩短施工周期的同时,降低了施工成本,且可达到绿色、环保的施工管理要求,并总结出一套完整的管理流程、方法。

Stability and remote real-time monitoring of the slope slide body in the Luoshan mining area

Landslides have occurred frequently in the Luoshan mining area because of disordered mining.This paper discusses the landforms and physiognomy,hydro-meteorology,formation lithology,and geologic structure of the Luoshan mining area.It also describes the factors influencing the slope stability of landslide No.Ⅲ,determines the general parameters and typical section plane,analyzes the stress-strain state of the No.Ⅲ slope,and calculates its safety factors with FLAC3 D under saturated and natural conditions.Based on a stability analysis,a remote real-time monitoring system was applied to the No.Ⅲ slope,and these monitoring data were collected and analyzed.