摘要
为监测井下坍塌后露天坑内堆积泥砂体溃入井下的地表泥砂体沉降情况,以新疆某金属矿区为应急救援背景,提出将便携阵列雷达首次运用于井下坍塌事故后地表泥砂体的沉降变形监测,得到时间序列下的监测变形数据。研究结果表明:塌陷区外围和坡体底部表面位移整体呈现沉降趋势;坑底冰冻砂浆体沉降变形受积雪和气温环境影响较大,低温导致冰冻砂浆体凝固,区域内单点日沉降变形最大值逐渐减小,沉降速度减缓;气温上升、日光直射环境下,部分积雪融化,水的渗入使砂浆体沉降速度增大。研究结果可为相关事故应急救援提供科学有力的保障。
In order to monitor the settlement of the surface mud and sand body in case of the inrush of accumulated mud and sand body in the open pit into underground well after the underground collapse,taking a metal mining area in Xinjiang as the background of emergency rescue,the portable array radar was proposed to monitor the settlement and deformation of the surface mud and sand body after the underground collapse accident for the first time,and the monitoring deformation data under the time series were obtained.The results show that the displacement of the periphery of the collapse area and the bottom surface of the slope present a settlement trend as a whole.The settlement deformation of the frozen mortar body at the pit bottom is greatly affected by the snow and air temperature environment.The low temperature leads to the solidification of the frozen mortar body,and the maximum daily settlement deformation of single point in the area gradually decreases,and the settlement speed slows down.Under the environment of rising temperature and direct sunlight,part of the snow melts,and the infiltration of water increases the settlement velocity of mortar body.The research results can provide scientific and powerful guarantee for the emergency rescue of related accidents.
作者
顾玉明
张亦海
马海涛
于正兴
GU Yuming;ZHANG Yihai;MA Haitao;YU Zhengxing(China Academy of Safety Science and Technology,Beijing 100012,China;Cathay Safety Technology Co.,Ltd.,Beijing 100012,China)
出处
《中国安全生产科学技术》
CAS
CSCD
北大核心
2023年第S01期117-122,共6页
Journal of Safety Science and Technology
基金
国家重点研发计划项目(2021YFC3090403)
中国安全生产科学研究院基本科研业务费专项资金项目(2023JBKY04)
关键词
便携阵列雷达
监测预警
变形规律
地表泥砂体
portable array radar
monitoring and early warning
deformation law
surface mud and sand body
