摘要
江西丰龙矿主井遇流砂层段,改用冻结法施工。采用井筒水位和冻结壁温度场综合分析方法,准确判定冻结壁交圈时间,合理确定井筒复工(开挖)时间,解决无水位观测孔情况下的冻结技术难题。成功地完成了江西省第一对冻结井筒的施工任务。
Based on the comprehensive analysis of the water level of shaft and the temperature field of frozen wall, the authors have introduced the application of freezing methods in construction in Fenglong Colliery, accu- rately judging the connecting time, resonably determining the re--dig time and solving the freezing technology problem with no eye split of water level.
出处
《江西煤炭科技》
2008年第3期69-71,共3页
Jiangxi Coal Science & Technology
关键词
冻结技术
井筒
流砂
温度场
freezing technology
shaft
drift sand
temperature field
