一种治理主溜井特大塌方的新方法——托斗法

介绍一种治理主溜井特大塌方的新方法－托斗法。该方法的技术核心是：采用箱式结构梁跨越塌空区，成为卸矿支承结构使其放矿功能得到恢复；在溜井卸矿水平以下局部施工一倒锥台体的漏斗式结构，兼有储矿和溜矿功能，同时对上部和周围井壁给予支撑。该项技术通过对特大塌方现场的局部加固，获得整个系统稳定的工程效果，即实现对系统功能的全面恢复，又在本质上解决对特大塌方的综合治理和预防，是结构设计理念上的突破。

A NEW TECHNIQUE--SUPPORTING FUNNEL METHOD USED IN RECOVERING AND CONTROLLING OF LARGE-SCALE COLLAPSED MAIN TRANSPORTATION SHAFT

A new technique,supporting funnel method,is introduced to recover and controll large-scale collapse in main shaft. The key points of the technique involve a box shaped beam acting as a supporting structure bridge through caved area to recover its download function. An inverse cone shaped funnel built at lower level of the shaft has multi-function of storage,ore transportation,and supporting the upper and surrounding rockmass of the shaft. The method keeps the whole system stable by local reinforcement for the collapsed shaft. The technique fully recovers the system function and make the shaft stable. This makes a breakthrough of conventional concept of structural design.