某矿坑内卷扬机硐室加固方案

Reinforcement scheme of winch chamber in a mine

本文分析某矿坑内卷扬机硐室出现破损沉降的原因,然后针对硐室所处的特殊地层而无法使用常规加固措施的情况下,提出了对穿式锚索+钢筋砼墙+壁后注浆这种联合加固方案,并给出硐室加固过程中应注意的事项。对类似坑内硐室工程的围岩控制和加固维修有一定借鉴意义。

This paper analyzes the causes of the damaged settlement of the winch chamber in a mine pit in Yunnan Province,and then puts forward the joint reinforcement scheme of through anchor cable+reinforced concrete wall+grouting behind the support in the case of the special stratum where the chamber is unable to use the conventional reinforcement measures,and gives the precautions in the reinforcement process of the chamber.It can be used for reference in the surrounding rock control and reinforcement maintenance of similar tunnel engineering.