巴拉素煤矿中央回风立井井筒差异冻结技术分析  

Analysis on the difference freezing technology of central return shaft in Balasu coal mine

作　　者：赵俊峰 

机构地区：[1]陕西延长石油巴拉素煤业有限公司,陕西榆林719000

出　　处：《陕西煤炭》2017年第5期34-39,9,共7页Shaanxi Coal

摘　　要：依据巴拉素井田勘探报告及井检钻水文地质资料,从矿井中央回风立井筒冻结孔设计入手,通过对各个冻结管路盐水温度、冻土温度的实时监测数据的整理,寻找立井筒在冻结过程中盐水温度、冻土温度和冻土压力的变化规律;结合测温孔和泄压孔内外测温数据,分析立井筒冻结发展速度,预测立井筒冻结管"交圈"时间和冻结效果,从而更好地指导立井筒顺利排水和如期开挖,保证了上部井壁的施工安全。Based on the geological exploration report and hydrogeological data of Balasu minefield,starting with the design of freezing holes in central return vertical shaft were summarized,real time monitoring data of brine temperature and frozen soil temperature in each freezing pipeline was analyzed,and the change rules of brine temperature,frozen soil temperature and frozen ground pressure in the freezing process of vertical shaft were summarized. Combined with the inside and outside temperature measurement data of thermometer holes and pressure relief holes,the freezing development speed of the vertical shaft was analyzed,the freezing pipes enclosed time and freezing effect of vertical shaft was predicted,which better guides shaft＇s drainage and excavation,and ensures the construction safety of upper shaft lining.

关 键 词：立井筒 差异冻结 技术分析 

分 类 号：TD262.11[矿业工程—矿井建设]