特殊地层冻结壁的设计与控制

Design and control of frost wall in special stratum

以具体工程为例,对冻结壁的设计参数作了分析研究,并依据实际施工情况,探讨了合理控制冻结壁发展厚度的方法,指出通过合理设计冻结壁厚度和钻孔布置方式,动态的调节开机参数,保证了井筒的施工安全。

Taking specific engineering as the example, the paper analyzes and studies the frost wall design parameters. According to actual con- struction conditions, it explores methods of rationally controlling frost wall thickness. In the end, it points out that： it can guarantees the shaft construction security by rationally design frost wall thickness and drilling distribution method and dynamically adjusting parameters.