蒙西矿区大直径立井信息化施工

Information Construction of Large Diameter Mine Shaft in Mengxi Mining Area

针对纳林河二号井副井井筒施工中存在井筒直径大、涌水量大、且井筒穿过特厚表土等问题,采用信息化手段,在井筒冻结、掘砌期间对立井井筒冻结温度场、井壁应力和冻结壁位移等参数进行实时监测,通过对相关参数进行反向分析,掌握内、外井壁温度场的变化规律及井壁受力和冻结壁蠕变规律等数据,并通过分析数据,合理选择注浆时机,保证了工程质量。整个井筒施工仅用时6个月,提前2个月完工。

According to the large diameter of the mine shaft, high water inflow value, mine shaft passing through ultra thick overburden and other problems occurred in the construction of the mine auxiliary shaft in the Nalinhe No.2 Mine ,the information means were applied to realize the real time monitoring and measuring of the freezing temperature field, mine shaft stress, freezing wall displacement and other parameters during the mine shaft freezing and the excavation and lining period.With the reverse analysis conducted on the relevant parameters, the variation law of the mine shaft internal and external liners,the mine shaft liner stress, the creep law of the mine shaft freezing wall and other decision and predicted data could be mastered.With the predicted data,the grouting opportunity could he rationally selected and the engineering quality could be ensured.The construction period of the whole mine shaft was only six months and was two months ahead of the construction schedule.