立井冻结沟槽、临时锁口、井架基础联合施工技术

Shaft Freezing Trenches,Temporary Locking,Headframe Basis of the Combination Construction Technology

大海则立井井筒采用冻结法施工,考虑到地质条件的复杂,在施工冻结沟槽的同时进行静水位以上段临时锁口以及井架基础的施工,采用整体开挖、联合施工技术,综合考虑冻结及掘砌需要,实现冻结、掘砌一体化施工,既解决了风积沙地层施工难题,保证施工安全和工期,还为井筒试挖施工创造了有利条件。

Dahaize mine shaft construction used freezing method .Taking into account the complex geo-logical conditions ,temporary locking and derrick foundation construction above the static water level segment carried on while construction freeze in the groove .The construction used the overall excava-tion ,joint construction technology ,considering freezing and dig puzzle needed to achieve the freeze , driving and masonry construction integration .T hose measures sovled Aeolian sand stratum construc-tion problems and ensured construction safety and schedule ,also created favorable conditions for the construction of the borehole dug test.