摘要
山东某金矿1#井筒近年受民采影响发生变形错位、开裂破坏,为了保证矿区的安全生产,对1#井筒进行了下沉和拉伸压缩变形预测,并根据预测变形值采用了爆破卸载和预应力锚索加固等治理措施,经倒垂线井筒变形观测,治理取得了很好的效果。
No. 1 shaft in a Shandong gold mine was deformed, distorted, cracked and damaged due to the private mining in recent years. To ensure the safty production of the mine, forecast was made of the subsidence and strentching and compressive deformation of the shaft. Control measures were taken according to the forecast deformation value such as blasting unloading and pre-stressed anchor cable reinforcement. The observation of the shaft distortion by inverted plumbline method shows that the control measures have achieved a very good effect.
出处
《金属矿山》
CAS
北大核心
2009年第2期110-111,130,共3页
Metal Mine
关键词
井筒变形
变形预测
井筒治理
倒垂线
Shaft deformation, Deformation forecast, Shaft control, Inverted plumbline
