危岩突发性崩塌应急安全警报系统研究  

Security Alarm System Dealing with Paroxysmal Collapse of Perilous Rock

作　　者：赵先涛[1] 唐兰[1] 向杰[1] 胡婷[1] 邓珊珊[1] 闫慧[1] 陈冬梅[1] 熊礼勇[1] 

机构地区：[1]重庆交通大学河海学院,重庆400074

出　　处：《重庆交通大学学报（自然科学版）》2011年第A01期613-618,661,共7页Journal of Chongqing Jiaotong University(Natural Science)

摘　　要：以断裂力学为理论指导,提出了不同于基于极限平衡理论的稳定分析法的断裂力学稳定性分析法,研发了三维应力采集器和危岩突发性崩塌应急安全警报系统。警报系统包括三维应力采集器、有线信息处理器、警报显示器。三维应力采集器区别于普通的应力采集器,它可采集危岩体内不同深度不同位置的应力。即危岩体内的三维应力,提取这些应力中最大的剪应力和压应力,并转化为沿主控结构面的最大剪应力和拉应力,以此作为危岩稳定性判定的基础信息。通过系统建立的模型获得稳定性系数并自动判定危岩体的稳定状态,判定结果通过有线方式,最后以红黄蓝绿指示灯和鸣笛信号来警告危险区活动者。The security alarm system takes fracture mechanics as theoretical guidance. The stability analysis method of fracture mechanics based on the limit equilibrium theory is different from the former proposed stability analysis. Thus, the 3D stress collector and the security alarm system dealing with paroxysmal collapse of perilous rock are developed and researched. The alarm system consists of 3D stress collector, lineate information processor and warning LCD. The 3D stress collector is different with ordinary stress collector, which is able to collect different depths and locations of stresses in rocks, that is to say the 3D stresses existing in the paroxysmal collapse. Then the maximum shear stress and press stress chosen from the 3D stresses are converted into the maximum shear stress and tension stress existing in master structure surface. The switched stresses are finally the foundation information of measuring the stability of rocks. Through the established calculation model, the stability coefficients of perilous rock are obtained and the system automatically estimates the stability state of paroxysmal collapse. The security alarm system transfers the judging outcome information by wired. The whole warning system is employing red, yellow, blue, green guiding lamps and whistle signal that show different states of paroxysmal collapse warns to activators in dangerous areas.

关 键 词：危岩 崩塌 稳定性分析 断裂力学 预警系统 三维应力采集器 

分 类 号：P642.3[天文地球—工程地质学]