超长联络通道水平冻结加固技术探讨

Discussion on horizontal freeze-reinforcement technology of ultra-long connecting channel

结合郑州市轨道交通5号线某区间超长、不平行联络通道冻结设计和施工案例,对超长联络通道的工程环境、重难点、冻结孔和冻结站设置、冻结壁设计参数进行阐述,并通过对冻结加固的实施效果的检测,证明采用超长联络通道冻结技术不仅保证了建设工程的安全,而且取得了良好的经济和社会效益,丰富了该地区的复杂条件下水平冻结加固经验。

This paper combines the freezing design and construction case of the ultra-long and non-parallel connecting channel of a section of Zhengzhou Rail Transit Line 5,and expounds the engineering environment,the important and difficult points,the freezing hole and freezing station setting,and the freezing wall design parameters of the ultra-long connecting channel.Through the detection of the effect of freezing reinforcement,it is proved that the use of ultra-long connecting channel freezing technology not only ensures the safety of the construction,but also achieves good economic and social benefits,enriches the experience of horizontal freeze-reinforcement under complex conditions in the region.